--- a/hotspot/make/bsd/makefiles/universal.gmk Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/make/bsd/makefiles/universal.gmk Fri Jun 06 10:19:50 2014 -0700
@@ -74,19 +74,21 @@
# Replace arch specific binaries with universal binaries
+# Do not touch jre/lib/{client,server}/libjsig.$(LIBRARY_SUFFIX)
+# That symbolic link belongs to the 'jdk' build.
export_universal:
$(RM) -r $(EXPORT_PATH)/jre/lib/{i386,amd64}
$(RM) -r $(JDK_IMAGE_DIR)/jre/lib/{i386,amd64}
- $(RM) $(JDK_IMAGE_DIR)/jre/lib/{client,server}/libjsig.$(LIBRARY_SUFFIX)
($(CD) $(EXPORT_PATH) && \
$(TAR) -cf - *) | \
($(CD) $(JDK_IMAGE_DIR) && $(TAR) -xpf -)
# Overlay universal binaries
+# Do not touch jre/lib/{client,server}/libjsig.$(LIBRARY_SUFFIX)
+# That symbolic link belongs to the 'jdk' build.
copy_universal:
$(RM) -r $(JDK_IMAGE_DIR)$(COPY_SUBDIR)/jre/lib/{i386,amd64}
- $(RM) $(JDK_IMAGE_DIR)$(COPY_SUBDIR)/jre/lib/{client,server}/libjsig.$(LIBRARY_SUFFIX)
($(CD) $(EXPORT_PATH)$(COPY_SUBDIR) && \
$(TAR) -cf - *) | \
($(CD) $(JDK_IMAGE_DIR)$(COPY_SUBDIR) && $(TAR) -xpf -)
--- a/hotspot/src/share/vm/classfile/classFileParser.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/classfile/classFileParser.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -4359,9 +4359,15 @@
Method* m = k->lookup_method(vmSymbols::finalize_method_name(),
vmSymbols::void_method_signature());
if (m != NULL && !m->is_empty_method()) {
- f = true;
+ f = true;
}
- assert(f == k->has_finalizer(), "inconsistent has_finalizer");
+
+ // Spec doesn't prevent agent from redefinition of empty finalizer.
+ // Despite the fact that it's generally bad idea and redefined finalizer
+ // will not work as expected we shouldn't abort vm in this case
+ if (!k->has_redefined_this_or_super()) {
+ assert(f == k->has_finalizer(), "inconsistent has_finalizer");
+ }
#endif
// Check if this klass supports the java.lang.Cloneable interface
--- a/hotspot/src/share/vm/classfile/javaClasses.hpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/classfile/javaClasses.hpp Fri Jun 06 10:19:50 2014 -0700
@@ -1181,7 +1181,7 @@
static oop target( oop site) { return site->obj_field( _target_offset); }
static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); }
- static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); }
+ static volatile oop target_volatile(oop site) { return oop((oopDesc *)(site->obj_field_volatile(_target_offset))); }
static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); }
// Testers
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -311,8 +311,7 @@
_cmsGen->refs_discovery_is_mt(), // mt discovery
(int) MAX2(ConcGCThreads, ParallelGCThreads), // mt discovery degree
_cmsGen->refs_discovery_is_atomic(), // discovery is not atomic
- &_is_alive_closure, // closure for liveness info
- false); // next field updates do not need write barrier
+ &_is_alive_closure); // closure for liveness info
// Initialize the _ref_processor field of CMSGen
_cmsGen->set_ref_processor(_ref_processor);
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -2246,12 +2246,9 @@
// degree of mt discovery
false,
// Reference discovery is not atomic
- &_is_alive_closure_cm,
+ &_is_alive_closure_cm);
// is alive closure
// (for efficiency/performance)
- true);
- // Setting next fields of discovered
- // lists requires a barrier.
// STW ref processor
_ref_processor_stw =
@@ -2266,12 +2263,9 @@
// degree of mt discovery
true,
// Reference discovery is atomic
- &_is_alive_closure_stw,
+ &_is_alive_closure_stw);
// is alive closure
// (for efficiency/performance)
- false);
- // Setting next fields of discovered
- // lists does not require a barrier.
}
size_t G1CollectedHeap::capacity() const {
--- a/hotspot/src/share/vm/gc_implementation/parNew/parNewGeneration.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/parNew/parNewGeneration.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -1636,8 +1636,7 @@
refs_discovery_is_mt(), // mt discovery
(int) ParallelGCThreads, // mt discovery degree
refs_discovery_is_atomic(), // atomic_discovery
- NULL, // is_alive_non_header
- false); // write barrier for next field updates
+ NULL); // is_alive_non_header
}
}
--- a/hotspot/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -854,8 +854,7 @@
true, // mt discovery
(int) ParallelGCThreads, // mt discovery degree
true, // atomic_discovery
- &_is_alive_closure, // non-header is alive closure
- false); // write barrier for next field updates
+ &_is_alive_closure); // non-header is alive closure
_counters = new CollectorCounters("PSParallelCompact", 1);
// Initialize static fields in ParCompactionManager.
--- a/hotspot/src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -864,8 +864,7 @@
true, // mt discovery
(int) ParallelGCThreads, // mt discovery degree
true, // atomic_discovery
- NULL, // header provides liveness info
- false); // next field updates do not need write barrier
+ NULL); // header provides liveness info
// Cache the cardtable
BarrierSet* bs = Universe::heap()->barrier_set();
--- a/hotspot/src/share/vm/memory/allocation.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/memory/allocation.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -563,6 +563,7 @@
_chunk = new (alloc_failmode, len) Chunk(len);
if (_chunk == NULL) {
+ _chunk = k; // restore the previous value of _chunk
return NULL;
}
if (k) k->set_next(_chunk); // Append new chunk to end of linked list
--- a/hotspot/src/share/vm/memory/metaspace.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/memory/metaspace.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -1423,6 +1423,17 @@
return (size_t)Atomic::add_ptr(-(intptr_t)v, &_capacity_until_GC);
}
+void MetaspaceGC::initialize() {
+ // Set the high-water mark to MaxMetapaceSize during VM initializaton since
+ // we can't do a GC during initialization.
+ _capacity_until_GC = MaxMetaspaceSize;
+}
+
+void MetaspaceGC::post_initialize() {
+ // Reset the high-water mark once the VM initialization is done.
+ _capacity_until_GC = MAX2(MetaspaceAux::committed_bytes(), MetaspaceSize);
+}
+
bool MetaspaceGC::can_expand(size_t word_size, bool is_class) {
// Check if the compressed class space is full.
if (is_class && Metaspace::using_class_space()) {
@@ -1443,21 +1454,13 @@
size_t MetaspaceGC::allowed_expansion() {
size_t committed_bytes = MetaspaceAux::committed_bytes();
+ size_t capacity_until_gc = capacity_until_GC();
+
+ assert(capacity_until_gc >= committed_bytes,
+ err_msg("capacity_until_gc: " SIZE_FORMAT " < committed_bytes: " SIZE_FORMAT,
+ capacity_until_gc, committed_bytes));
size_t left_until_max = MaxMetaspaceSize - committed_bytes;
-
- // Always grant expansion if we are initiating the JVM,
- // or if the GC_locker is preventing GCs.
- if (!is_init_completed() || GC_locker::is_active_and_needs_gc()) {
- return left_until_max / BytesPerWord;
- }
-
- size_t capacity_until_gc = capacity_until_GC();
-
- if (capacity_until_gc <= committed_bytes) {
- return 0;
- }
-
size_t left_until_GC = capacity_until_gc - committed_bytes;
size_t left_to_commit = MIN2(left_until_GC, left_until_max);
@@ -1469,7 +1472,15 @@
uint current_shrink_factor = _shrink_factor;
_shrink_factor = 0;
- const size_t used_after_gc = MetaspaceAux::capacity_bytes();
+ // Using committed_bytes() for used_after_gc is an overestimation, since the
+ // chunk free lists are included in committed_bytes() and the memory in an
+ // un-fragmented chunk free list is available for future allocations.
+ // However, if the chunk free lists becomes fragmented, then the memory may
+ // not be available for future allocations and the memory is therefore "in use".
+ // Including the chunk free lists in the definition of "in use" is therefore
+ // necessary. Not including the chunk free lists can cause capacity_until_GC to
+ // shrink below committed_bytes() and this has caused serious bugs in the past.
+ const size_t used_after_gc = MetaspaceAux::committed_bytes();
const size_t capacity_until_GC = MetaspaceGC::capacity_until_GC();
const double minimum_free_percentage = MinMetaspaceFreeRatio / 100.0;
@@ -3094,6 +3105,8 @@
}
void Metaspace::global_initialize() {
+ MetaspaceGC::initialize();
+
// Initialize the alignment for shared spaces.
int max_alignment = os::vm_allocation_granularity();
size_t cds_total = 0;
@@ -3201,10 +3214,13 @@
}
}
- MetaspaceGC::initialize();
_tracer = new MetaspaceTracer();
}
+void Metaspace::post_initialize() {
+ MetaspaceGC::post_initialize();
+}
+
Metachunk* Metaspace::get_initialization_chunk(MetadataType mdtype,
size_t chunk_word_size,
size_t chunk_bunch) {
--- a/hotspot/src/share/vm/memory/metaspace.hpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/memory/metaspace.hpp Fri Jun 06 10:19:50 2014 -0700
@@ -208,6 +208,7 @@
static void ergo_initialize();
static void global_initialize();
+ static void post_initialize();
static size_t first_chunk_word_size() { return _first_chunk_word_size; }
static size_t first_class_chunk_word_size() { return _first_class_chunk_word_size; }
@@ -398,7 +399,8 @@
public:
- static void initialize() { _capacity_until_GC = MetaspaceSize; }
+ static void initialize();
+ static void post_initialize();
static size_t capacity_until_GC();
static size_t inc_capacity_until_GC(size_t v);
--- a/hotspot/src/share/vm/memory/referenceProcessor.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/memory/referenceProcessor.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -96,12 +96,10 @@
bool mt_discovery,
uint mt_discovery_degree,
bool atomic_discovery,
- BoolObjectClosure* is_alive_non_header,
- bool discovered_list_needs_post_barrier) :
+ BoolObjectClosure* is_alive_non_header) :
_discovering_refs(false),
_enqueuing_is_done(false),
_is_alive_non_header(is_alive_non_header),
- _discovered_list_needs_post_barrier(discovered_list_needs_post_barrier),
_processing_is_mt(mt_processing),
_next_id(0)
{
@@ -340,10 +338,18 @@
// (java.lang.ref.Reference.discovered), self-loop their "next" field
// thus distinguishing them from active References, then
// prepend them to the pending list.
+ //
+ // The Java threads will see the Reference objects linked together through
+ // the discovered field. Instead of trying to do the write barrier updates
+ // in all places in the reference processor where we manipulate the discovered
+ // field we make sure to do the barrier here where we anyway iterate through
+ // all linked Reference objects. Note that it is important to not dirty any
+ // cards during reference processing since this will cause card table
+ // verification to fail for G1.
+ //
// BKWRD COMPATIBILITY NOTE: For older JDKs (prior to the fix for 4956777),
// the "next" field is used to chain the pending list, not the discovered
// field.
-
if (TraceReferenceGC && PrintGCDetails) {
gclog_or_tty->print_cr("ReferenceProcessor::enqueue_discovered_reflist list "
INTPTR_FORMAT, (address)refs_list.head());
@@ -365,15 +371,15 @@
assert(java_lang_ref_Reference::next(obj) == NULL,
"Reference not active; should not be discovered");
// Self-loop next, so as to make Ref not active.
- // Post-barrier not needed when looping to self.
java_lang_ref_Reference::set_next_raw(obj, obj);
- if (next_d == obj) { // obj is last
+ if (next_d != obj) {
+ oopDesc::bs()->write_ref_field(java_lang_ref_Reference::discovered_addr(obj), next_d);
+ } else {
+ // This is the last object.
// Swap refs_list into pending_list_addr and
// set obj's discovered to what we read from pending_list_addr.
oop old = oopDesc::atomic_exchange_oop(refs_list.head(), pending_list_addr);
- // Need post-barrier on pending_list_addr above;
- // see special post-barrier code at the end of
- // enqueue_discovered_reflists() further below.
+ // Need post-barrier on pending_list_addr. See enqueue_discovered_ref_helper() above.
java_lang_ref_Reference::set_discovered_raw(obj, old); // old may be NULL
oopDesc::bs()->write_ref_field(java_lang_ref_Reference::discovered_addr(obj), old);
}
@@ -496,20 +502,15 @@
// pre-barrier here because we know the Reference has already been found/marked,
// that's how it ended up in the discovered list in the first place.
oop_store_raw(_prev_next, new_next);
- if (_discovered_list_needs_post_barrier && _prev_next != _refs_list.adr_head()) {
- // Needs post-barrier and this is not the list head (which is not on the heap)
- oopDesc::bs()->write_ref_field(_prev_next, new_next);
- }
NOT_PRODUCT(_removed++);
_refs_list.dec_length(1);
}
// Make the Reference object active again.
void DiscoveredListIterator::make_active() {
- // For G1 we don't want to use set_next - it
- // will dirty the card for the next field of
- // the reference object and will fail
- // CT verification.
+ // The pre barrier for G1 is probably just needed for the old
+ // reference processing behavior. Should we guard this with
+ // ReferenceProcessor::pending_list_uses_discovered_field() ?
if (UseG1GC) {
HeapWord* next_addr = java_lang_ref_Reference::next_addr(_ref);
if (UseCompressedOops) {
@@ -517,10 +518,8 @@
} else {
oopDesc::bs()->write_ref_field_pre((oop*)next_addr, NULL);
}
- java_lang_ref_Reference::set_next_raw(_ref, NULL);
- } else {
- java_lang_ref_Reference::set_next(_ref, NULL);
}
+ java_lang_ref_Reference::set_next_raw(_ref, NULL);
}
void DiscoveredListIterator::clear_referent() {
@@ -546,7 +545,7 @@
OopClosure* keep_alive,
VoidClosure* complete_gc) {
assert(policy != NULL, "Must have a non-NULL policy");
- DiscoveredListIterator iter(refs_list, keep_alive, is_alive, _discovered_list_needs_post_barrier);
+ DiscoveredListIterator iter(refs_list, keep_alive, is_alive);
// Decide which softly reachable refs should be kept alive.
while (iter.has_next()) {
iter.load_ptrs(DEBUG_ONLY(!discovery_is_atomic() /* allow_null_referent */));
@@ -586,7 +585,7 @@
BoolObjectClosure* is_alive,
OopClosure* keep_alive) {
assert(discovery_is_atomic(), "Error");
- DiscoveredListIterator iter(refs_list, keep_alive, is_alive, _discovered_list_needs_post_barrier);
+ DiscoveredListIterator iter(refs_list, keep_alive, is_alive);
while (iter.has_next()) {
iter.load_ptrs(DEBUG_ONLY(false /* allow_null_referent */));
DEBUG_ONLY(oop next = java_lang_ref_Reference::next(iter.obj());)
@@ -623,7 +622,7 @@
OopClosure* keep_alive,
VoidClosure* complete_gc) {
assert(!discovery_is_atomic(), "Error");
- DiscoveredListIterator iter(refs_list, keep_alive, is_alive, _discovered_list_needs_post_barrier);
+ DiscoveredListIterator iter(refs_list, keep_alive, is_alive);
while (iter.has_next()) {
iter.load_ptrs(DEBUG_ONLY(true /* allow_null_referent */));
HeapWord* next_addr = java_lang_ref_Reference::next_addr(iter.obj());
@@ -666,7 +665,7 @@
OopClosure* keep_alive,
VoidClosure* complete_gc) {
ResourceMark rm;
- DiscoveredListIterator iter(refs_list, keep_alive, is_alive, _discovered_list_needs_post_barrier);
+ DiscoveredListIterator iter(refs_list, keep_alive, is_alive);
while (iter.has_next()) {
iter.update_discovered();
iter.load_ptrs(DEBUG_ONLY(false /* allow_null_referent */));
@@ -782,13 +781,6 @@
bool _clear_referent;
};
-void ReferenceProcessor::set_discovered(oop ref, oop value) {
- java_lang_ref_Reference::set_discovered_raw(ref, value);
- if (_discovered_list_needs_post_barrier) {
- oopDesc::bs()->write_ref_field(java_lang_ref_Reference::discovered_addr(ref), value);
- }
-}
-
// Balances reference queues.
// Move entries from all queues[0, 1, ..., _max_num_q-1] to
// queues[0, 1, ..., _num_q-1] because only the first _num_q
@@ -846,9 +838,9 @@
// Add the chain to the to list.
if (ref_lists[to_idx].head() == NULL) {
// to list is empty. Make a loop at the end.
- set_discovered(move_tail, move_tail);
+ java_lang_ref_Reference::set_discovered_raw(move_tail, move_tail);
} else {
- set_discovered(move_tail, ref_lists[to_idx].head());
+ java_lang_ref_Reference::set_discovered_raw(move_tail, ref_lists[to_idx].head());
}
ref_lists[to_idx].set_head(move_head);
ref_lists[to_idx].inc_length(refs_to_move);
@@ -982,7 +974,7 @@
void ReferenceProcessor::clean_up_discovered_reflist(DiscoveredList& refs_list) {
assert(!discovery_is_atomic(), "Else why call this method?");
- DiscoveredListIterator iter(refs_list, NULL, NULL, _discovered_list_needs_post_barrier);
+ DiscoveredListIterator iter(refs_list, NULL, NULL);
while (iter.has_next()) {
iter.load_ptrs(DEBUG_ONLY(true /* allow_null_referent */));
oop next = java_lang_ref_Reference::next(iter.obj());
@@ -1071,16 +1063,6 @@
// The last ref must have its discovered field pointing to itself.
oop next_discovered = (current_head != NULL) ? current_head : obj;
- // Note: In the case of G1, this specific pre-barrier is strictly
- // not necessary because the only case we are interested in
- // here is when *discovered_addr is NULL (see the CAS further below),
- // so this will expand to nothing. As a result, we have manually
- // elided this out for G1, but left in the test for some future
- // collector that might have need for a pre-barrier here, e.g.:-
- // oopDesc::bs()->write_ref_field_pre((oop* or narrowOop*)discovered_addr, next_discovered);
- assert(!_discovered_list_needs_post_barrier || UseG1GC,
- "Need to check non-G1 collector: "
- "may need a pre-write-barrier for CAS from NULL below");
oop retest = oopDesc::atomic_compare_exchange_oop(next_discovered, discovered_addr,
NULL);
if (retest == NULL) {
@@ -1089,9 +1071,6 @@
// is necessary.
refs_list.set_head(obj);
refs_list.inc_length(1);
- if (_discovered_list_needs_post_barrier) {
- oopDesc::bs()->write_ref_field((void*)discovered_addr, next_discovered);
- }
if (TraceReferenceGC) {
gclog_or_tty->print_cr("Discovered reference (mt) (" INTPTR_FORMAT ": %s)",
@@ -1242,24 +1221,14 @@
if (_discovery_is_mt) {
add_to_discovered_list_mt(*list, obj, discovered_addr);
} else {
- // If "_discovered_list_needs_post_barrier", we do write barriers when
- // updating the discovered reference list. Otherwise, we do a raw store
- // here: the field will be visited later when processing the discovered
- // references.
+ // We do a raw store here: the field will be visited later when processing
+ // the discovered references.
oop current_head = list->head();
// The last ref must have its discovered field pointing to itself.
oop next_discovered = (current_head != NULL) ? current_head : obj;
- // As in the case further above, since we are over-writing a NULL
- // pre-value, we can safely elide the pre-barrier here for the case of G1.
- // e.g.:- oopDesc::bs()->write_ref_field_pre((oop* or narrowOop*)discovered_addr, next_discovered);
assert(discovered == NULL, "control point invariant");
- assert(!_discovered_list_needs_post_barrier || UseG1GC,
- "For non-G1 collector, may need a pre-write-barrier for CAS from NULL below");
oop_store_raw(discovered_addr, next_discovered);
- if (_discovered_list_needs_post_barrier) {
- oopDesc::bs()->write_ref_field((void*)discovered_addr, next_discovered);
- }
list->set_head(obj);
list->inc_length(1);
@@ -1353,7 +1322,7 @@
OopClosure* keep_alive,
VoidClosure* complete_gc,
YieldClosure* yield) {
- DiscoveredListIterator iter(refs_list, keep_alive, is_alive, _discovered_list_needs_post_barrier);
+ DiscoveredListIterator iter(refs_list, keep_alive, is_alive);
while (iter.has_next()) {
iter.load_ptrs(DEBUG_ONLY(true /* allow_null_referent */));
oop obj = iter.obj();
--- a/hotspot/src/share/vm/memory/referenceProcessor.hpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/memory/referenceProcessor.hpp Fri Jun 06 10:19:50 2014 -0700
@@ -99,7 +99,6 @@
oop _referent;
OopClosure* _keep_alive;
BoolObjectClosure* _is_alive;
- bool _discovered_list_needs_post_barrier;
DEBUG_ONLY(
oop _first_seen; // cyclic linked list check
@@ -113,8 +112,7 @@
public:
inline DiscoveredListIterator(DiscoveredList& refs_list,
OopClosure* keep_alive,
- BoolObjectClosure* is_alive,
- bool discovered_list_needs_post_barrier = false):
+ BoolObjectClosure* is_alive):
_refs_list(refs_list),
_prev_next(refs_list.adr_head()),
_prev(NULL),
@@ -128,8 +126,7 @@
#endif
_next(NULL),
_keep_alive(keep_alive),
- _is_alive(is_alive),
- _discovered_list_needs_post_barrier(discovered_list_needs_post_barrier)
+ _is_alive(is_alive)
{ }
// End Of List.
@@ -230,14 +227,6 @@
// other collectors in configuration
bool _discovery_is_mt; // true if reference discovery is MT.
- // If true, setting "next" field of a discovered refs list requires
- // write post barrier. (Must be true if used in a collector in which
- // elements of a discovered list may be moved during discovery: for
- // example, a collector like Garbage-First that moves objects during a
- // long-term concurrent marking phase that does weak reference
- // discovery.)
- bool _discovered_list_needs_post_barrier;
-
bool _enqueuing_is_done; // true if all weak references enqueued
bool _processing_is_mt; // true during phases when
// reference processing is MT.
@@ -382,11 +371,6 @@
void enqueue_discovered_reflists(HeapWord* pending_list_addr, AbstractRefProcTaskExecutor* task_executor);
protected:
- // Set the 'discovered' field of the given reference to
- // the given value - emitting post barriers depending upon
- // the value of _discovered_list_needs_post_barrier.
- void set_discovered(oop ref, oop value);
-
// "Preclean" the given discovered reference list
// by removing references with strongly reachable referents.
// Currently used in support of CMS only.
@@ -427,8 +411,7 @@
bool mt_processing = false, uint mt_processing_degree = 1,
bool mt_discovery = false, uint mt_discovery_degree = 1,
bool atomic_discovery = true,
- BoolObjectClosure* is_alive_non_header = NULL,
- bool discovered_list_needs_post_barrier = false);
+ BoolObjectClosure* is_alive_non_header = NULL);
// RefDiscoveryPolicy values
enum DiscoveryPolicy {
--- a/hotspot/src/share/vm/oops/instanceKlass.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/oops/instanceKlass.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -1501,6 +1501,21 @@
return NULL;
}
+#ifdef ASSERT
+// search through class hierarchy and return true if this class or
+// one of the superclasses was redefined
+bool InstanceKlass::has_redefined_this_or_super() const {
+ const InstanceKlass* klass = this;
+ while (klass != NULL) {
+ if (klass->has_been_redefined()) {
+ return true;
+ }
+ klass = InstanceKlass::cast(klass->super());
+ }
+ return false;
+}
+#endif
+
// lookup a method in the default methods list then in all transitive interfaces
// Do NOT return private or static methods
Method* InstanceKlass::lookup_method_in_ordered_interfaces(Symbol* name,
--- a/hotspot/src/share/vm/oops/instanceKlass.hpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/oops/instanceKlass.hpp Fri Jun 06 10:19:50 2014 -0700
@@ -754,6 +754,11 @@
bool implements_interface(Klass* k) const;
bool is_same_or_direct_interface(Klass* k) const;
+#ifdef ASSERT
+ // check whether this class or one of its superclasses was redefined
+ bool has_redefined_this_or_super() const;
+#endif
+
// Access to the implementor of an interface.
Klass* implementor() const
{
@@ -811,8 +816,8 @@
// Casting from Klass*
static InstanceKlass* cast(Klass* k) {
- assert(k->is_klass(), "must be");
- assert(k->oop_is_instance(), "cast to InstanceKlass");
+ assert(k == NULL || k->is_klass(), "must be");
+ assert(k == NULL || k->oop_is_instance(), "cast to InstanceKlass");
return (InstanceKlass*) k;
}
--- a/hotspot/src/share/vm/oops/oopsHierarchy.hpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/oops/oopsHierarchy.hpp Fri Jun 06 10:19:50 2014 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -112,9 +112,7 @@
// Assignment
oop& operator=(const oop& o) { _o = o.obj(); return *this; }
-#ifndef SOLARIS
volatile oop& operator=(const oop& o) volatile { _o = o.obj(); return *this; }
-#endif
volatile oop& operator=(const volatile oop& o) volatile { _o = o.obj(); return *this; }
// Explict user conversions
@@ -123,11 +121,10 @@
operator void* () const volatile { return (void *)obj(); }
#endif
operator HeapWord* () const { return (HeapWord*)obj(); }
- operator oopDesc* () const { return obj(); }
+ operator oopDesc* () const volatile { return obj(); }
operator intptr_t* () const { return (intptr_t*)obj(); }
operator PromotedObject* () const { return (PromotedObject*)obj(); }
operator markOop () const { return markOop(obj()); }
-
operator address () const { return (address)obj(); }
// from javaCalls.cpp
@@ -161,11 +158,10 @@
oop::operator=(o); \
return *this; \
} \
- NOT_SOLARIS( \
volatile type##Oop& operator=(const type##Oop& o) volatile { \
(void)const_cast<oop&>(oop::operator=(o)); \
return *this; \
- }) \
+ } \
volatile type##Oop& operator=(const volatile type##Oop& o) volatile {\
(void)const_cast<oop&>(oop::operator=(o)); \
return *this; \
--- a/hotspot/src/share/vm/runtime/mutexLocker.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/runtime/mutexLocker.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -280,10 +280,10 @@
#ifdef INCLUDE_TRACE
def(JfrMsg_lock , Monitor, leaf, true);
- def(JfrBuffer_lock , Mutex, nonleaf+1, true);
- def(JfrThreadGroups_lock , Mutex, nonleaf+1, true);
- def(JfrStream_lock , Mutex, nonleaf+2, true);
- def(JfrStacktrace_lock , Mutex, special, true );
+ def(JfrBuffer_lock , Mutex, leaf, true);
+ def(JfrThreadGroups_lock , Mutex, leaf, true);
+ def(JfrStream_lock , Mutex, nonleaf, true);
+ def(JfrStacktrace_lock , Mutex, special, true);
#endif
}
--- a/hotspot/src/share/vm/runtime/objectMonitor.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/runtime/objectMonitor.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -385,6 +385,15 @@
jt->java_suspend_self();
}
Self->set_current_pending_monitor(NULL);
+
+ // We cleared the pending monitor info since we've just gotten past
+ // the enter-check-for-suspend dance and we now own the monitor free
+ // and clear, i.e., it is no longer pending. The ThreadBlockInVM
+ // destructor can go to a safepoint at the end of this block. If we
+ // do a thread dump during that safepoint, then this thread will show
+ // as having "-locked" the monitor, but the OS and java.lang.Thread
+ // states will still report that the thread is blocked trying to
+ // acquire it.
}
Atomic::dec_ptr(&_count);
--- a/hotspot/src/share/vm/runtime/thread.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/runtime/thread.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -1434,7 +1434,7 @@
_in_deopt_handler = 0;
_doing_unsafe_access = false;
_stack_guard_state = stack_guard_unused;
- (void)const_cast<oop&>(_exception_oop = NULL);
+ (void)const_cast<oop&>(_exception_oop = oop(NULL));
_exception_pc = 0;
_exception_handler_pc = 0;
_is_method_handle_return = 0;
@@ -3543,6 +3543,8 @@
// debug stuff, that does not work until all basic classes have been initialized.
set_init_completed();
+ Metaspace::post_initialize();
+
HOTSPOT_VM_INIT_END();
// record VM initialization completion time
--- a/hotspot/src/share/vm/runtime/vframe.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/runtime/vframe.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -199,6 +199,7 @@
continue;
}
if (monitor->owner() != NULL) {
+ // the monitor is associated with an object, i.e., it is locked
// First, assume we have the monitor locked. If we haven't found an
// owned monitor before and this is the first frame, then we need to
@@ -209,7 +210,11 @@
if (!found_first_monitor && frame_count == 0) {
markOop mark = monitor->owner()->mark();
if (mark->has_monitor() &&
- mark->monitor() == thread()->current_pending_monitor()) {
+ ( // we have marked ourself as pending on this monitor
+ mark->monitor() == thread()->current_pending_monitor() ||
+ // we are not the owner of this monitor
+ !mark->monitor()->is_entered(thread())
+ )) {
lock_state = "waiting to lock";
}
}
--- a/hotspot/src/share/vm/services/attachListener.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/services/attachListener.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -162,10 +162,7 @@
java_lang_Throwable::print(PENDING_EXCEPTION, out);
out->cr();
CLEAR_PENDING_EXCEPTION;
- // The exception has been printed on the output stream
- // If the JVM returns JNI_ERR, the attachAPI throws a generic I/O
- // exception and the content of the output stream is not processed.
- // By returning JNI_OK, the exception will be displayed on the client side
+ return JNI_ERR;
}
return JNI_OK;
}
--- a/hotspot/src/share/vm/services/memoryManager.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/services/memoryManager.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -39,7 +39,7 @@
MemoryManager::MemoryManager() {
_num_pools = 0;
- (void)const_cast<instanceOop&>(_memory_mgr_obj = NULL);
+ (void)const_cast<instanceOop&>(_memory_mgr_obj = instanceOop(NULL));
}
void MemoryManager::add_pool(MemoryPool* pool) {
--- a/hotspot/src/share/vm/services/memoryPool.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/services/memoryPool.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -46,7 +46,7 @@
_name = name;
_initial_size = init_size;
_max_size = max_size;
- (void)const_cast<instanceOop&>(_memory_pool_obj = NULL);
+ (void)const_cast<instanceOop&>(_memory_pool_obj = instanceOop(NULL));
_available_for_allocation = true;
_num_managers = 0;
_type = type;
--- a/hotspot/src/share/vm/utilities/debug.cpp Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/src/share/vm/utilities/debug.cpp Fri Jun 06 10:19:50 2014 -0700
@@ -263,13 +263,11 @@
void report_out_of_shared_space(SharedSpaceType shared_space) {
static const char* name[] = {
- "native memory for metadata",
"shared read only space",
"shared read write space",
"shared miscellaneous data space"
};
static const char* flag[] = {
- "Metaspace",
"SharedReadOnlySize",
"SharedReadWriteSize",
"SharedMiscDataSize"
--- a/hotspot/test/TEST.groups Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/TEST.groups Fri Jun 06 10:19:50 2014 -0700
@@ -81,6 +81,7 @@
runtime/NMT/ThreadedVirtualAllocTestType.java \
runtime/NMT/VirtualAllocTestType.java \
runtime/RedefineObject/TestRedefineObject.java \
+ runtime/Thread/TestThreadDumpMonitorContention.java \
runtime/XCheckJniJsig/XCheckJSig.java \
serviceability/attach/AttachWithStalePidFile.java \
serviceability/jvmti/8036666/GetObjectLockCount.java \
--- a/hotspot/test/gc/arguments/TestParallelHeapSizeFlags.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/gc/arguments/TestParallelHeapSizeFlags.java Fri Jun 06 10:19:50 2014 -0700
@@ -22,6 +22,7 @@
*/
/*
+ * @ignore 8027915
* @test TestParallelHeapSizeFlags
* @key gc
* @bug 8006088
--- a/hotspot/test/gc/arguments/TestUseCompressedOopsErgo.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/gc/arguments/TestUseCompressedOopsErgo.java Fri Jun 06 10:19:50 2014 -0700
@@ -22,6 +22,7 @@
*/
/*
+ * @ignore 8025645
* @test TestUseCompressedOopsErgo
* @key gc
* @bug 8010722
--- a/hotspot/test/gc/g1/TestHumongousShrinkHeap.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/gc/g1/TestHumongousShrinkHeap.java Fri Jun 06 10:19:50 2014 -0700
@@ -22,6 +22,7 @@
*/
/**
+ * @ignore 8041506, 8041946, 8042051
* @test TestHumongousShrinkHeap
* @bug 8036025
* @summary Verify that heap shrinks after GC in the presence of fragmentation due to humongous objects
--- a/hotspot/test/gc/g1/TestStringDeduplicationMemoryUsage.java Wed Jul 05 19:44:08 2017 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,36 +0,0 @@
-/*
- * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/*
- * @test TestStringDeduplicationMemoryUsage
- * @summary Test string deduplication memory usage
- * @bug 8029075
- * @key gc
- * @library /testlibrary
- */
-
-public class TestStringDeduplicationMemoryUsage {
- public static void main(String[] args) throws Exception {
- TestStringDeduplicationTools.testMemoryUsage();
- }
-}
--- a/hotspot/test/gc/g1/TestStringDeduplicationTools.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/gc/g1/TestStringDeduplicationTools.java Fri Jun 06 10:19:50 2014 -0700
@@ -294,55 +294,6 @@
}
}
- private static class MemoryUsageTest {
- public static void main(String[] args) {
- System.out.println("Begin: MemoryUsageTest");
-
- final boolean useStringDeduplication = Boolean.parseBoolean(args[0]);
- final int numberOfStrings = LargeNumberOfStrings;
- final int numberOfUniqueStrings = 1;
-
- ArrayList<String> list = createStrings(numberOfStrings, numberOfUniqueStrings);
- forceDeduplication(DefaultAgeThreshold, FullGC);
-
- if (useStringDeduplication) {
- verifyStrings(list, numberOfUniqueStrings);
- }
-
- System.gc();
-
- System.out.println("Heap Memory Usage: " + ManagementFactory.getMemoryMXBean().getHeapMemoryUsage().getUsed());
- System.out.println("Array Header Size: " + unsafe.ARRAY_CHAR_BASE_OFFSET);
-
- System.out.println("End: MemoryUsageTest");
- }
-
- public static OutputAnalyzer run(boolean useStringDeduplication) throws Exception {
- String[] extraArgs = new String[0];
-
- if (useStringDeduplication) {
- extraArgs = new String[] {
- "-XX:+UseStringDeduplication",
- "-XX:+PrintStringDeduplicationStatistics",
- "-XX:StringDeduplicationAgeThreshold=" + DefaultAgeThreshold
- };
- }
-
- String[] defaultArgs = new String[] {
- "-XX:+PrintGC",
- "-XX:+PrintGCDetails",
- MemoryUsageTest.class.getName(),
- "" + useStringDeduplication
- };
-
- ArrayList<String> args = new ArrayList<String>();
- args.addAll(Arrays.asList(extraArgs));
- args.addAll(Arrays.asList(defaultArgs));
-
- return runTest(args.toArray(new String[args.size()]));
- }
- }
-
/*
* Tests
*/
@@ -480,44 +431,4 @@
OutputAnalyzer output = InternedTest.run();
output.shouldHaveExitValue(0);
}
-
- public static void testMemoryUsage() throws Exception {
- // Test that memory usage is reduced after deduplication
- OutputAnalyzer output;
- final String heapMemoryUsagePattern = "Heap Memory Usage: (\\d+)";
- final String arrayHeaderSizePattern = "Array Header Size: (\\d+)";
-
- // Run without deduplication
- output = MemoryUsageTest.run(false);
- output.shouldHaveExitValue(0);
- final long heapMemoryUsageWithoutDedup = Long.parseLong(output.firstMatch(heapMemoryUsagePattern, 1));
- final long arrayHeaderSizeWithoutDedup = Long.parseLong(output.firstMatch(arrayHeaderSizePattern, 1));
-
- // Run with deduplication
- output = MemoryUsageTest.run(true);
- output.shouldHaveExitValue(0);
- final long heapMemoryUsageWithDedup = Long.parseLong(output.firstMatch(heapMemoryUsagePattern, 1));
- final long arrayHeaderSizeWithDedup = Long.parseLong(output.firstMatch(arrayHeaderSizePattern, 1));
-
- // Sanity check to make sure one instance isn't using compressed class pointers and the other not
- if (arrayHeaderSizeWithoutDedup != arrayHeaderSizeWithDedup) {
- throw new Exception("Unexpected difference between array header sizes");
- }
-
- // Calculate expected memory usage with deduplication enabled. This calculation does
- // not take alignment and padding into account, so it's a conservative estimate.
- final long sizeOfChar = unsafe.ARRAY_CHAR_INDEX_SCALE;
- final long sizeOfCharArray = StringLength * sizeOfChar + arrayHeaderSizeWithoutDedup;
- final long bytesSaved = (LargeNumberOfStrings - 1) * sizeOfCharArray;
- final long heapMemoryUsageWithDedupExpected = heapMemoryUsageWithoutDedup - bytesSaved;
-
- System.out.println("Memory usage summary:");
- System.out.println(" heapMemoryUsageWithoutDedup: " + heapMemoryUsageWithoutDedup);
- System.out.println(" heapMemoryUsageWithDedup: " + heapMemoryUsageWithDedup);
- System.out.println(" heapMemoryUsageWithDedupExpected: " + heapMemoryUsageWithDedupExpected);
-
- if (heapMemoryUsageWithDedup > heapMemoryUsageWithDedupExpected) {
- throw new Exception("Unexpected memory usage, heapMemoryUsageWithDedup should be less or equal to heapMemoryUsageWithDedupExpected");
- }
- }
}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/gc/metaspace/TestMetaspaceInitialization.java Fri Jun 06 10:19:50 2014 -0700
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.util.ArrayList;
+
+/* @test TestMetaspaceInitialization
+ * @bug 8042933
+ * @summary Tests to initialize metaspace with a very low MetaspaceSize
+ * @library /testlibrary
+ * @run main/othervm -XX:MetaspaceSize=2m TestMetaspaceInitialization
+ */
+public class TestMetaspaceInitialization {
+ private class Internal {
+ public int x;
+ public Internal(int x) {
+ this.x = x;
+ }
+ }
+
+ private void test() {
+ ArrayList<Internal> l = new ArrayList<>();
+ l.add(new Internal(17));
+ }
+
+ public static void main(String[] args) {
+ new TestMetaspaceInitialization().test();
+ }
+}
--- a/hotspot/test/gc/parallelScavenge/TestDynShrinkHeap.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/gc/parallelScavenge/TestDynShrinkHeap.java Fri Jun 06 10:19:50 2014 -0700
@@ -22,6 +22,7 @@
*/
/**
+ * @ignore 8042051
* @test TestDynShrinkHeap
* @bug 8016479
* @summary Verify that the heap shrinks after full GC according to the current values of the Min/MaxHeapFreeRatio flags
--- a/hotspot/test/runtime/CommandLine/TestHexArguments.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/runtime/CommandLine/TestHexArguments.java Fri Jun 06 10:19:50 2014 -0700
@@ -35,14 +35,14 @@
public class TestHexArguments {
public static void main(String args[]) throws Exception {
String[] javaArgs = {"-XX:SharedBaseAddress=0x1D000000", "-version"};
- ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, javaArgs);
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(javaArgs);
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldNotContain("Could not create the Java Virtual Machine");
output.shouldHaveExitValue(0);
String[] javaArgs1 = {"-XX:SharedBaseAddress=1D000000", "-version"};
- pb = ProcessTools.createJavaProcessBuilder(true, javaArgs1);
+ pb = ProcessTools.createJavaProcessBuilder(javaArgs1);
output = new OutputAnalyzer(pb.start());
output.shouldContain("Could not create the Java Virtual Machine");
}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/RedefineFinalizer/RedefineFinalizer.java Fri Jun 06 10:19:50 2014 -0700
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 6904403
+ * @summary Don't assert if we redefine finalize method
+ * @library /testlibrary
+ * @build RedefineClassHelper
+ * @run main RedefineClassHelper
+ * @run main/othervm -javaagent:redefineagent.jar RedefineFinalizer
+ */
+
+/*
+ * Regression test for hitting:
+ *
+ * assert(f == k->has_finalizer()) failed: inconsistent has_finalizer
+ *
+ * when redefining finalizer method
+ */
+public class RedefineFinalizer {
+
+ public static String newB =
+ "class RedefineFinalizer$B {" +
+ " protected void finalize() { " +
+ " System.out.println(\"Finalizer called\");" +
+ " }" +
+ "}";
+
+ public static void main(String[] args) throws Exception {
+ RedefineClassHelper.redefineClass(B.class, newB);
+
+ A a = new A();
+ }
+
+ static class A extends B {
+ }
+
+ static class B {
+ protected void finalize() {
+ // should be empty
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/SharedArchiveFile/LimitSharedSizes.java Fri Jun 06 10:19:50 2014 -0700
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/* @ignore JDK-8043896
+ * @test LimitSharedSizes
+ * @summary Test handling of limits on shared space size
+ * @library /testlibrary
+ * @run main LimitSharedSizes
+ */
+
+import com.oracle.java.testlibrary.*;
+
+public class LimitSharedSizes {
+ private static class SharedSizeTestData {
+ public String optionName;
+ public String optionValue;
+ public String expectedErrorMsg;
+
+ public SharedSizeTestData(String name, String value, String msg) {
+ optionName = name;
+ optionValue = value;
+ expectedErrorMsg = msg;
+ }
+ }
+
+ private static final SharedSizeTestData[] testTable = {
+ // values in this part of the test table should cause failure
+ // (shared space sizes are deliberately too small)
+ new SharedSizeTestData("-XX:SharedReadOnlySize", "4M", "read only"),
+ new SharedSizeTestData("-XX:SharedReadWriteSize","4M", "read write"),
+
+ // Known issue, JDK-8038422 (assert() on Windows)
+ // new SharedSizeTestData("-XX:SharedMiscDataSize", "500k", "miscellaneous data"),
+
+ // This will cause a VM crash; commenting out for now; see bug JDK-8038268
+ // @ignore JDK-8038268
+ // new SharedSizeTestData("-XX:SharedMiscCodeSize", "20k", "miscellaneous code"),
+
+ // these values are larger than default ones, but should
+ // be acceptable and not cause failure
+ new SharedSizeTestData("-XX:SharedReadOnlySize", "20M", null),
+ new SharedSizeTestData("-XX:SharedReadWriteSize", "20M", null),
+ new SharedSizeTestData("-XX:SharedMiscDataSize", "20M", null),
+ new SharedSizeTestData("-XX:SharedMiscCodeSize", "20M", null)
+ };
+
+ public static void main(String[] args) throws Exception {
+ String fileName = "test.jsa";
+
+ for (SharedSizeTestData td : testTable) {
+ String option = td.optionName + "=" + td.optionValue;
+ System.out.println("testing option <" + option + ">");
+
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockDiagnosticVMOptions",
+ "-XX:SharedArchiveFile=./" + fileName,
+ option,
+ "-Xshare:dump");
+
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+
+ if (td.expectedErrorMsg != null) {
+ output.shouldContain("The shared " + td.expectedErrorMsg
+ + " space is not large enough");
+
+ output.shouldHaveExitValue(2);
+ } else {
+ output.shouldNotContain("space is not large enough");
+ output.shouldHaveExitValue(0);
+ }
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/SharedArchiveFile/SharedBaseAddress.java Fri Jun 06 10:19:50 2014 -0700
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test SharedBaseAddress
+ * @summary Test variety of values for SharedBaseAddress, making sure
+ * VM handles normal values as well as edge values w/o a crash.
+ * @library /testlibrary
+ * @run main SharedBaseAddress
+ */
+
+import com.oracle.java.testlibrary.*;
+
+public class SharedBaseAddress {
+
+ // shared base address test table
+ private static final String[] testTable = {
+ "1g", "8g", "64g","512g", "4t",
+ "32t", "128t", "0",
+ "1", "64k", "64M"
+ };
+
+ public static void main(String[] args) throws Exception {
+ // Known issue on Solaris-Sparc
+ // @ignore JDK-8044600
+ if (Platform.isSolaris() && Platform.isSparc())
+ return;
+
+ for (String testEntry : testTable) {
+ System.out.println("sharedBaseAddress = " + testEntry);
+
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockDiagnosticVMOptions",
+ "-XX:SharedArchiveFile=test.jsa",
+ "-XX:SharedBaseAddress=" + testEntry,
+ "-Xshare:dump");
+
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+
+ output.shouldContain("Loading classes to share");
+
+ try {
+ pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockDiagnosticVMOptions",
+ "-XX:SharedArchiveFile=test.jsa",
+ "-Xshare:on",
+ "-version");
+ output = new OutputAnalyzer(pb.start());
+ output.shouldContain("sharing");
+ output.shouldHaveExitValue(0);
+ } catch (RuntimeException e) {
+ output.shouldContain("Unable to use shared archive");
+ output.shouldHaveExitValue(1);
+ }
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/SharedArchiveFile/SpaceUtilizationCheck.java Fri Jun 06 10:19:50 2014 -0700
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test SpaceUtilizationCheck
+ * @summary Check if the space utilization for shared spaces is adequate
+ * @library /testlibrary
+ * @run main SpaceUtilizationCheck
+ */
+
+import com.oracle.java.testlibrary.*;
+
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import java.util.ArrayList;
+import java.lang.Integer;
+
+public class SpaceUtilizationCheck {
+ // Minimum allowed utilization value (percent)
+ // The goal is to have this number to be 50% for RO and RW regions
+ // Once that feature is implemented, increase the MIN_UTILIZATION to 50
+ private static final int MIN_UTILIZATION = 30;
+
+ // Only RO and RW regions are considered for this check, since they
+ // currently account for the bulk of the shared space
+ private static final int NUMBER_OF_CHECKED_SHARED_REGIONS = 2;
+
+ public static void main(String[] args) throws Exception {
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockDiagnosticVMOptions",
+ "-XX:SharedArchiveFile=./test.jsa",
+ "-Xshare:dump");
+
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+ String stdout = output.getStdout();
+ ArrayList<String> utilization = findUtilization(stdout);
+
+ if (utilization.size() != NUMBER_OF_CHECKED_SHARED_REGIONS )
+ throw new RuntimeException("The output format of sharing summary has changed");
+
+ for(String str : utilization) {
+ int value = Integer.parseInt(str);
+ if (value < MIN_UTILIZATION) {
+ System.out.println(stdout);
+ throw new RuntimeException("Utilization for one of the regions" +
+ "is below a threshold of " + MIN_UTILIZATION + "%");
+ }
+ }
+ }
+
+ public static ArrayList<String> findUtilization(String input) {
+ ArrayList<String> regions = filterRegionsOfInterest(input.split("\n"));
+ return filterByPattern(filterByPattern(regions, "bytes \\[.*% used\\]"), "\\d+");
+ }
+
+ private static ArrayList<String> filterByPattern(Iterable<String> input, String pattern) {
+ ArrayList<String> result = new ArrayList<String>();
+ for (String str : input) {
+ Matcher matcher = Pattern.compile(pattern).matcher(str);
+ if (matcher.find()) {
+ result.add(matcher.group());
+ }
+ }
+ return result;
+ }
+
+ private static ArrayList<String> filterRegionsOfInterest(String[] inputLines) {
+ ArrayList<String> result = new ArrayList<String>();
+ for (String str : inputLines) {
+ if (str.contains("ro space:") || str.contains("rw space:")) {
+ result.add(str);
+ }
+ }
+ return result;
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/Thread/TestThreadDumpMonitorContention.java Fri Jun 06 10:19:50 2014 -0700
@@ -0,0 +1,405 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8036823
+ * @summary Creates two threads contending for the same lock and checks
+ * whether jstack reports "locked" by more than one thread.
+ *
+ * @library /testlibrary
+ * @run main/othervm TestThreadDumpMonitorContention
+ */
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.lang.management.ManagementFactory;
+import java.lang.management.RuntimeMXBean;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import com.oracle.java.testlibrary.*;
+
+public class TestThreadDumpMonitorContention {
+ // jstack tends to be closely bound to the VM that we are running
+ // so use getTestJDKTool() instead of getCompileJDKTool() or even
+ // getJDKTool() which can fall back to "compile.jdk".
+ final static String JSTACK = JDKToolFinder.getTestJDKTool("jstack");
+ final static String PID = getPid();
+
+ // looking for header lines with these patterns:
+ // "ContendingThread-1" #19 prio=5 os_prio=64 tid=0x000000000079c000 nid=0x23 runnable [0xffff80ffb8b87000]
+ // "ContendingThread-2" #21 prio=5 os_prio=64 tid=0x0000000000780000 nid=0x2f waiting for monitor entry [0xfffffd7fc1111000]
+ final static Pattern HEADER_PREFIX_PATTERN = Pattern.compile(
+ "^\"ContendingThread-.*");
+ final static Pattern HEADER_WAITING_PATTERN = Pattern.compile(
+ "^\"ContendingThread-.* waiting for monitor entry .*");
+ final static Pattern HEADER_RUNNABLE_PATTERN = Pattern.compile(
+ "^\"ContendingThread-.* runnable .*");
+
+ // looking for thread state lines with these patterns:
+ // java.lang.Thread.State: RUNNABLE
+ // java.lang.Thread.State: BLOCKED (on object monitor)
+ final static Pattern THREAD_STATE_PREFIX_PATTERN = Pattern.compile(
+ " *java\\.lang\\.Thread\\.State: .*");
+ final static Pattern THREAD_STATE_BLOCKED_PATTERN = Pattern.compile(
+ " *java\\.lang\\.Thread\\.State: BLOCKED \\(on object monitor\\)");
+ final static Pattern THREAD_STATE_RUNNABLE_PATTERN = Pattern.compile(
+ " *java\\.lang\\.Thread\\.State: RUNNABLE");
+
+ // looking for duplicates of this pattern:
+ // - locked <0x000000076ac59e20> (a TestThreadDumpMonitorContention$1)
+ final static Pattern LOCK_PATTERN = Pattern.compile(
+ ".* locked \\<.*\\(a TestThreadDumpMonitorContention.*");
+
+ // sanity checking header and thread state lines associated
+ // with this pattern:
+ // - waiting to lock <0x000000076ac59e20> (a TestThreadDumpMonitorContention$1)
+ final static Pattern WAITING_PATTERN = Pattern.compile(
+ ".* waiting to lock \\<.*\\(a TestThreadDumpMonitorContention.*");
+
+ volatile static boolean done = false;
+
+ static int error_cnt = 0;
+ static String header_line = null;
+ static boolean have_header_line = false;
+ static boolean have_thread_state_line = false;
+ static int match_cnt = 0;
+ static String[] match_list = new String[2];
+ static int n_samples = 15;
+ static String thread_state_line = null;
+ static boolean verbose = false;
+
+ public static void main(String[] args) throws Exception {
+ if (args.length != 0) {
+ int arg_i = 0;
+ if (args[arg_i].equals("-v")) {
+ verbose = true;
+ arg_i++;
+ }
+
+ try {
+ n_samples = Integer.parseInt(args[arg_i]);
+ } catch (NumberFormatException nfe) {
+ System.err.println(nfe);
+ usage();
+ }
+ }
+
+ Runnable runnable = new Runnable() {
+ public void run() {
+ while (!done) {
+ synchronized (this) { }
+ }
+ }
+ };
+ Thread[] thread_list = new Thread[2];
+ thread_list[0] = new Thread(runnable, "ContendingThread-1");
+ thread_list[1] = new Thread(runnable, "ContendingThread-2");
+ thread_list[0].start();
+ thread_list[1].start();
+
+ doSamples();
+
+ done = true;
+
+ thread_list[0].join();
+ thread_list[1].join();
+
+ if (error_cnt == 0) {
+ System.out.println("Test PASSED.");
+ } else {
+ System.out.println("Test FAILED.");
+ throw new AssertionError("error_cnt=" + error_cnt);
+ }
+ }
+
+ // Reached a blank line which is the end of the
+ // stack trace without matching either LOCK_PATTERN
+ // or WAITING_PATTERN. Rare, but it's not an error.
+ //
+ // Example:
+ // "ContendingThread-1" #21 prio=5 os_prio=64 tid=0x00000000007b9000 nid=0x2f runnable [0xfffffd7fc1111000]
+ // java.lang.Thread.State: RUNNABLE
+ // at TestThreadDumpMonitorContention$1.run(TestThreadDumpMonitorContention.java:67)
+ // at java.lang.Thread.run(Thread.java:745)
+ //
+ static boolean checkBlankLine(String line) {
+ if (line.length() == 0) {
+ have_header_line = false;
+ have_thread_state_line = false;
+ return true;
+ }
+
+ return false;
+ }
+
+ // Process the locked line here if we found one.
+ //
+ // Example 1:
+ // "ContendingThread-1" #21 prio=5 os_prio=64 tid=0x00000000007b9000 nid=0x2f runnable [0xfffffd7fc1111000]
+ // java.lang.Thread.State: RUNNABLE
+ // at TestThreadDumpMonitorContention$1.run(TestThreadDumpMonitorContention.java:67)
+ // - locked <0xfffffd7e6a2912f8> (a TestThreadDumpMonitorContention$1)
+ // at java.lang.Thread.run(Thread.java:745)
+ //
+ // Example 2:
+ // "ContendingThread-1" #21 prio=5 os_prio=64 tid=0x00000000007b9000 nid=0x2f waiting for monitor entry [0xfffffd7fc1111000]
+ // java.lang.Thread.State: BLOCKED (on object monitor)
+ // at TestThreadDumpMonitorContention$1.run(TestThreadDumpMonitorContention.java:67)
+ // - locked <0xfffffd7e6a2912f8> (a TestThreadDumpMonitorContention$1)
+ // at java.lang.Thread.run(Thread.java:745)
+ //
+ static boolean checkLockedLine(String line) {
+ Matcher matcher = LOCK_PATTERN.matcher(line);
+ if (matcher.matches()) {
+ if (verbose) {
+ System.out.println("locked_line='" + line + "'");
+ }
+ match_list[match_cnt] = new String(line);
+ match_cnt++;
+
+ matcher = HEADER_RUNNABLE_PATTERN.matcher(header_line);
+ if (!matcher.matches()) {
+ // It's strange, but a locked line can also
+ // match the HEADER_WAITING_PATTERN.
+ matcher = HEADER_WAITING_PATTERN.matcher(header_line);
+ if (!matcher.matches()) {
+ System.err.println();
+ System.err.println("ERROR: header line does " +
+ "not match runnable or waiting patterns.");
+ System.err.println("ERROR: header_line='" +
+ header_line + "'");
+ System.err.println("ERROR: locked_line='" + line + "'");
+ error_cnt++;
+ }
+ }
+
+ matcher = THREAD_STATE_RUNNABLE_PATTERN.matcher(thread_state_line);
+ if (!matcher.matches()) {
+ // It's strange, but a locked line can also
+ // match the THREAD_STATE_BLOCKED_PATTERN.
+ matcher = THREAD_STATE_BLOCKED_PATTERN.matcher(
+ thread_state_line);
+ if (!matcher.matches()) {
+ System.err.println();
+ System.err.println("ERROR: thread state line does not " +
+ "match runnable or waiting patterns.");
+ System.err.println("ERROR: " + "thread_state_line='" +
+ thread_state_line + "'");
+ System.err.println("ERROR: locked_line='" + line + "'");
+ error_cnt++;
+ }
+ }
+
+ // Have everything we need from this thread stack
+ // that matches the LOCK_PATTERN.
+ have_header_line = false;
+ have_thread_state_line = false;
+ return true;
+ }
+
+ return false;
+ }
+
+ // Process the waiting line here if we found one.
+ //
+ // Example:
+ // "ContendingThread-2" #22 prio=5 os_prio=64 tid=0x00000000007b9800 nid=0x30 waiting for monitor entry [0xfffffd7fc1010000]
+ // java.lang.Thread.State: BLOCKED (on object monitor)
+ // at TestThreadDumpMonitorContention$1.run(TestThreadDumpMonitorContention.java:67)
+ // - waiting to lock <0xfffffd7e6a2912f8> (a TestThreadDumpMonitorContention$1)
+ // at java.lang.Thread.run(Thread.java:745)
+ //
+ static boolean checkWaitingLine(String line) {
+ Matcher matcher = WAITING_PATTERN.matcher(line);
+ if (matcher.matches()) {
+ if (verbose) {
+ System.out.println("waiting_line='" + line + "'");
+ }
+
+ matcher = HEADER_WAITING_PATTERN.matcher(header_line);
+ if (!matcher.matches()) {
+ System.err.println();
+ System.err.println("ERROR: header line does " +
+ "not match a waiting pattern.");
+ System.err.println("ERROR: header_line='" + header_line + "'");
+ System.err.println("ERROR: waiting_line='" + line + "'");
+ error_cnt++;
+ }
+
+ matcher = THREAD_STATE_BLOCKED_PATTERN.matcher(thread_state_line);
+ if (!matcher.matches()) {
+ System.err.println();
+ System.err.println("ERROR: thread state line " +
+ "does not match a waiting pattern.");
+ System.err.println("ERROR: thread_state_line='" +
+ thread_state_line + "'");
+ System.err.println("ERROR: waiting_line='" + line + "'");
+ error_cnt++;
+ }
+
+ // Have everything we need from this thread stack
+ // that matches the WAITING_PATTERN.
+ have_header_line = false;
+ have_thread_state_line = false;
+ return true;
+ }
+
+ return false;
+ }
+
+ static void doSamples() throws Exception {
+ for (int count = 0; count < n_samples; count++) {
+ match_cnt = 0;
+ // verbose mode or an error has a lot of output so add more space
+ if (verbose || error_cnt > 0) System.out.println();
+ System.out.println("Sample #" + count);
+
+ // We don't use the ProcessTools, OutputBuffer or
+ // OutputAnalyzer classes from the testlibrary because
+ // we have a complicated multi-line parse to perform
+ // on a narrow subset of the JSTACK output.
+ //
+ // - we only care about stack traces that match
+ // HEADER_PREFIX_PATTERN; only two should match
+ // - we care about at most three lines from each stack trace
+ // - if both stack traces match LOCKED_PATTERN, then that's
+ // a failure and we report it
+ // - for a stack trace that matches LOCKED_PATTERN, we verify:
+ // - the header line matches HEADER_RUNNABLE_PATTERN
+ // or HEADER_WAITING_PATTERN
+ // - the thread state line matches THREAD_STATE_BLOCKED_PATTERN
+ // or THREAD_STATE_RUNNABLE_PATTERN
+ // - we report any mismatches as failures
+ // - for a stack trace that matches WAITING_PATTERN, we verify:
+ // - the header line matches HEADER_WAITING_PATTERN
+ // - the thread state line matches THREAD_STATE_BLOCKED_PATTERN
+ // - we report any mismatches as failures
+ // - the stack traces that match HEADER_PREFIX_PATTERN may
+ // not match either LOCKED_PATTERN or WAITING_PATTERN
+ // because we might observe the thread outside of
+ // monitor operations; this is not considered a failure
+ //
+ // When we do observe LOCKED_PATTERN or WAITING_PATTERN,
+ // then we are checking the header and thread state patterns
+ // that occurred earlier in the current stack trace that
+ // matched HEADER_PREFIX_PATTERN. We don't use data from
+ // stack traces that don't match HEADER_PREFIX_PATTERN and
+ // we don't mix data between the two stack traces that do
+ // match HEADER_PREFIX_PATTERN.
+ //
+ Process process = new ProcessBuilder(JSTACK, PID)
+ .redirectErrorStream(true).start();
+
+ BufferedReader reader = new BufferedReader(new InputStreamReader(
+ process.getInputStream()));
+ String line;
+ while ((line = reader.readLine()) != null) {
+ Matcher matcher = null;
+
+ // process the header line here
+ if (!have_header_line) {
+ matcher = HEADER_PREFIX_PATTERN.matcher(line);
+ if (matcher.matches()) {
+ if (verbose) {
+ System.out.println();
+ System.out.println("header='" + line + "'");
+ }
+ header_line = new String(line);
+ have_header_line = true;
+ continue;
+ }
+ continue; // skip until have a header line
+ }
+
+ // process the thread state line here
+ if (!have_thread_state_line) {
+ matcher = THREAD_STATE_PREFIX_PATTERN.matcher(line);
+ if (matcher.matches()) {
+ if (verbose) {
+ System.out.println("thread_state='" + line + "'");
+ }
+ thread_state_line = new String(line);
+ have_thread_state_line = true;
+ continue;
+ }
+ continue; // skip until we have a thread state line
+ }
+
+ // process the locked line here if we find one
+ if (checkLockedLine(line)) {
+ continue;
+ }
+
+ // process the waiting line here if we find one
+ if (checkWaitingLine(line)) {
+ continue;
+ }
+
+ // process the blank line here if we find one
+ if (checkBlankLine(line)) {
+ continue;
+ }
+ }
+ process.waitFor();
+
+ if (match_cnt == 2) {
+ if (match_list[0].equals(match_list[1])) {
+ System.err.println();
+ System.err.println("ERROR: matching lock lines:");
+ System.err.println("ERROR: line[0]'" + match_list[0] + "'");
+ System.err.println("ERROR: line[1]'" + match_list[1] + "'");
+ error_cnt++;
+ }
+ }
+
+ // slight delay between jstack launches
+ Thread.sleep(500);
+ }
+ }
+
+ // This helper relies on RuntimeMXBean.getName() returning a string
+ // that looks like this: 5436@mt-haku
+ //
+ // The testlibrary has tryFindJvmPid(), but that uses a separate
+ // process which is much more expensive for finding out your own PID.
+ //
+ static String getPid() {
+ RuntimeMXBean runtimebean = ManagementFactory.getRuntimeMXBean();
+ String vmname = runtimebean.getName();
+ int i = vmname.indexOf('@');
+ if (i != -1) {
+ vmname = vmname.substring(0, i);
+ }
+ return vmname;
+ }
+
+ static void usage() {
+ System.err.println("Usage: " +
+ "java TestThreadDumpMonitorContention [-v] [n_samples]");
+ System.exit(1);
+ }
+}
--- a/hotspot/test/serviceability/ParserTest.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/serviceability/ParserTest.java Fri Jun 06 10:19:50 2014 -0700
@@ -22,10 +22,10 @@
*/
/*
- * @test ParserTest
+ * @test
* @summary Test that the diagnostic command arguemnt parser works
* @library /testlibrary /testlibrary/whitebox
- * @build ParserTest
+ * @build ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.parser.*
* @run main ClassFileInstaller sun.hotspot.WhiteBox
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI ParserTest
*/
--- a/hotspot/test/serviceability/attach/AttachWithStalePidFile.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/serviceability/attach/AttachWithStalePidFile.java Fri Jun 06 10:19:50 2014 -0700
@@ -27,7 +27,7 @@
* @key regression
* @summary Regression test for attach issue where stale pid files in /tmp lead to connection issues
* @library /testlibrary
- * @compile AttachWithStalePidFileTarget.java
+ * @build com.oracle.java.testlibrary.* AttachWithStalePidFileTarget
* @run main AttachWithStalePidFile
*/
--- a/hotspot/test/serviceability/dcmd/DynLibDcmdTest.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/serviceability/dcmd/DynLibDcmdTest.java Fri Jun 06 10:19:50 2014 -0700
@@ -29,7 +29,7 @@
* @test
* @summary Test of VM.dynlib diagnostic command via MBean
* @library /testlibrary
- * @compile DcmdUtil.java
+ * @build com.oracle.java.testlibrary.* DcmdUtil
* @run main DynLibDcmdTest
*/
--- a/hotspot/test/serviceability/jvmti/GetObjectSizeOverflow.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/serviceability/jvmti/GetObjectSizeOverflow.java Fri Jun 06 10:19:50 2014 -0700
@@ -29,7 +29,7 @@
* @test
* @bug 8027230
* @library /testlibrary
- * @build GetObjectSizeOverflowAgent
+ * @build ClassFileInstaller com.oracle.java.testlibrary.* GetObjectSizeOverflowAgent
* @run main ClassFileInstaller GetObjectSizeOverflowAgent
* @run main GetObjectSizeOverflow
*/
--- a/hotspot/test/serviceability/jvmti/TestRedefineWithUnresolvedClass.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/serviceability/jvmti/TestRedefineWithUnresolvedClass.java Fri Jun 06 10:19:50 2014 -0700
@@ -26,7 +26,7 @@
* @summary Redefine a class with an UnresolvedClass reference in the constant pool.
* @bug 8035150
* @library /testlibrary
- * @build UnresolvedClassAgent com.oracle.java.testlibrary.ProcessTools com.oracle.java.testlibrary.OutputAnalyzer
+ * @build com.oracle.java.testlibrary.* UnresolvedClassAgent
* @run main TestRedefineWithUnresolvedClass
*/
--- a/hotspot/test/serviceability/sa/jmap-hashcode/Test8028623.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/serviceability/sa/jmap-hashcode/Test8028623.java Fri Jun 06 10:19:50 2014 -0700
@@ -26,6 +26,7 @@
* @bug 8028623
* @summary Test hashing of extended characters in Serviceability Agent.
* @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
* @compile -encoding utf8 Test8028623.java
* @run main Test8028623
*/
--- a/hotspot/test/serviceability/sa/jmap-hprof/JMapHProfLargeHeapTest.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/serviceability/sa/jmap-hprof/JMapHProfLargeHeapTest.java Fri Jun 06 10:19:50 2014 -0700
@@ -44,7 +44,7 @@
* @key regression
* @summary Regression test for hprof export issue due to large heaps (>2G)
* @library /testlibrary
- * @compile JMapHProfLargeHeapProc.java
+ * @build com.oracle.java.testlibrary.* JMapHProfLargeHeapProc
* @run main JMapHProfLargeHeapTest
*/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/testlibrary/RedefineClassHelper.java Fri Jun 06 10:19:50 2014 -0700
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.io.PrintWriter;
+import java.lang.instrument.*;
+import com.oracle.java.testlibrary.*;
+
+/*
+ * Helper class to write tests that redefine classes.
+ * When main method is run, it will create a redefineagent.jar that can be used
+ * with the -javaagent option to support redefining classes in jtreg tests.
+ *
+ * See sample test in test/testlibrary_tests/RedefineClassTest.java
+ */
+public class RedefineClassHelper {
+
+ public static Instrumentation instrumentation;
+ public static void premain(String agentArgs, Instrumentation inst) {
+ instrumentation = inst;
+ }
+
+ /**
+ * Redefine a class
+ *
+ * @param clazz Class to redefine
+ * @param javacode String with the new java code for the class to be redefined
+ */
+ public static void redefineClass(Class clazz, String javacode) throws Exception {
+ byte[] bytecode = InMemoryJavaCompiler.compile(clazz.getName(), javacode);
+ redefineClass(clazz, bytecode);
+ }
+
+ /**
+ * Redefine a class
+ *
+ * @param clazz Class to redefine
+ * @param bytecode byte[] with the new class
+ */
+ public static void redefineClass(Class clazz, byte[] bytecode) throws Exception {
+ instrumentation.redefineClasses(new ClassDefinition(clazz, bytecode));
+ }
+
+ /**
+ * Main method to be invoked before test to create the redefineagent.jar
+ */
+ public static void main(String[] args) throws Exception {
+ ClassFileInstaller.main("RedefineClassHelper");
+
+ PrintWriter pw = new PrintWriter("MANIFEST.MF");
+ pw.println("Premain-Class: RedefineClassHelper");
+ pw.println("Can-Redefine-Classes: true");
+ pw.close();
+
+ sun.tools.jar.Main jarTool = new sun.tools.jar.Main(System.out, System.err, "jar");
+ if (!jarTool.run(new String[] { "-cmf", "MANIFEST.MF", "redefineagent.jar", "RedefineClassHelper.class" })) {
+ throw new Exception("jar operation failed");
+ }
+ }
+}
--- a/hotspot/test/testlibrary/ctw/test/ClassesDirTest.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/testlibrary/ctw/test/ClassesDirTest.java Fri Jun 06 10:19:50 2014 -0700
@@ -22,10 +22,10 @@
*/
/*
- * @test ClassesDirTest
+ * @test
* @bug 8012447
* @library /testlibrary /testlibrary/whitebox /testlibrary/ctw/src
- * @build sun.hotspot.tools.ctw.CompileTheWorld sun.hotspot.WhiteBox ClassesDirTest Foo Bar
+ * @build ClassFileInstaller sun.hotspot.tools.ctw.CompileTheWorld sun.hotspot.WhiteBox Foo Bar
* @run main ClassFileInstaller sun.hotspot.WhiteBox Foo Bar
* @run main ClassesDirTest prepare
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Dsun.hotspot.tools.ctw.logfile=ctw.log sun.hotspot.tools.ctw.CompileTheWorld classes
--- a/hotspot/test/testlibrary/ctw/test/ClassesListTest.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/testlibrary/ctw/test/ClassesListTest.java Fri Jun 06 10:19:50 2014 -0700
@@ -22,10 +22,10 @@
*/
/*
- * @test ClassesListTest
+ * @test
* @bug 8012447
* @library /testlibrary /testlibrary/whitebox /testlibrary/ctw/src
- * @build sun.hotspot.tools.ctw.CompileTheWorld sun.hotspot.WhiteBox ClassesListTest Foo Bar
+ * @build ClassFileInstaller sun.hotspot.tools.ctw.CompileTheWorld sun.hotspot.WhiteBox Foo Bar
* @run main ClassFileInstaller sun.hotspot.WhiteBox Foo Bar
* @run main ClassesListTest prepare
* @run main/othervm/timeout=600 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Dsun.hotspot.tools.ctw.logfile=ctw.log sun.hotspot.tools.ctw.CompileTheWorld classes.lst
--- a/hotspot/test/testlibrary/ctw/test/JarDirTest.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/testlibrary/ctw/test/JarDirTest.java Fri Jun 06 10:19:50 2014 -0700
@@ -22,10 +22,10 @@
*/
/*
- * @test JarDirTest
+ * @test
* @bug 8012447
* @library /testlibrary /testlibrary/whitebox /testlibrary/ctw/src
- * @build sun.hotspot.tools.ctw.CompileTheWorld sun.hotspot.WhiteBox JarDirTest Foo Bar
+ * @build ClassFileInstaller com.oracle.java.testlibrary.* sun.hotspot.tools.ctw.CompileTheWorld sun.hotspot.WhiteBox Foo Bar
* @run main ClassFileInstaller sun.hotspot.WhiteBox Foo Bar
* @run main JarDirTest prepare
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Dsun.hotspot.tools.ctw.logfile=ctw.log sun.hotspot.tools.ctw.CompileTheWorld jars/*
--- a/hotspot/test/testlibrary/ctw/test/JarsTest.java Wed Jul 05 19:44:08 2017 +0200
+++ b/hotspot/test/testlibrary/ctw/test/JarsTest.java Fri Jun 06 10:19:50 2014 -0700
@@ -22,10 +22,10 @@
*/
/*
- * @test JarsTest
+ * @test
* @bug 8012447
* @library /testlibrary /testlibrary/whitebox /testlibrary/ctw/src
- * @build sun.hotspot.tools.ctw.CompileTheWorld sun.hotspot.WhiteBox JarsTest Foo Bar
+ * @build ClassFileInstaller com.oracle.java.testlibrary.* sun.hotspot.tools.ctw.CompileTheWorld sun.hotspot.WhiteBox Foo Bar
* @run main ClassFileInstaller sun.hotspot.WhiteBox Foo Bar
* @run main JarsTest prepare
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Dsun.hotspot.tools.ctw.logfile=ctw.log sun.hotspot.tools.ctw.CompileTheWorld foo.jar bar.jar
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/testlibrary_tests/RedefineClassTest.java Fri Jun 06 10:19:50 2014 -0700
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @library /testlibrary
+ * @summary Proof of concept test for RedefineClassHelper
+ * @build RedefineClassHelper
+ * @run main RedefineClassHelper
+ * @run main/othervm -javaagent:redefineagent.jar RedefineClassTest
+ */
+
+import static com.oracle.java.testlibrary.Asserts.*;
+import com.oracle.java.testlibrary.*;
+
+/*
+ * Proof of concept test for the test utility class RedefineClassHelper
+ */
+public class RedefineClassTest {
+
+ public static String newClass = "class RedefineClassTest$A { public int Method() { return 2; } }";
+ public static void main(String[] args) throws Exception {
+ A a = new A();
+ assertTrue(a.Method() == 1);
+ RedefineClassHelper.redefineClass(A.class, newClass);
+ assertTrue(a.Method() == 2);
+ }
+
+ static class A {
+ public int Method() {
+ return 1;
+ }
+ }
+}