jdk-sandbox: Changelog

6977804: G1: remove the zero-filling thread Summary: This changeset removes the zero-filling thread from G1 and collapses the two free region lists we had before (the "free" and "unclean" lists) into one. The new free list uses the new heap region sets / lists abstractions that we'll ultimately use it to keep track of all regions in the heap. A heap region set was also introduced for the humongous regions. Finally, this change increases the concurrency between the thread that completes freeing regions (after a cleanup pause) and the rest of the system (before we'd have to wait for said thread to complete before allocating a new region). The changest also includes a lot of refactoring and code simplification. Reviewed-by: jcoomes, johnc

7012642: G1: JumbleGC002 test aborts with segmentation violation due to uncaught stack overflow Summary: With recent G1 allocation path changes, the value of StackShadowPages in fast debug builds of the JVM, is no longer large enough to prevent the JVM C++ code from touching the stack guard pages. Increase the value of StackShadowPages to a suitable value. Reviewed-by: ysr, tonyp, coleenp

7011379: G1: overly long concurrent marking cycles Summary: This changeset introduces filtering of SATB buffers at the point when they are about to be enqueued. If this filtering clears enough entries on each buffer, the buffer can then be re-used and not enqueued. This cuts down the number of SATB buffers that need to be processed by the concurrent marking threads. Reviewed-by: johnc, ysr

7012505: BreakpointWithFullGC.sh fails with Internal Error (src/share/vm/oops/methodOop.cpp:220) Summary: Rebuild breakpoint cache at gc_epilogue instead of during oops_do Reviewed-by: dcubed, ysr, coleenp

7013008: 2/3 assert(method == NULL || check_method(method, bcp)) failed: bcp must point into method Summary: The Relocator should pass a NULL methodOop when rewriting since its resource array can never contain breakpoints. Reviewed-by: dcubed, kvn, coleenp

7012493: 2/2 6849574/Test.java fails with Internal Error (src/share/vm/prims/jvmtiTagMap.cpp:3294) Summary: Refine assertion to work before VMThread has started. Reviewed-by: ysr, never, dholmes, acorn

6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun Summary: Check buffer size before using and use dynamic buffer sizes for subsequent calls. Reviewed-by: kamg, dholmes

4926272: methodOopDesc::method_from_bcp is unsafe Reviewed-by: coleenp, jrose, kvn, dcubed

7012766: assert(false) failed: DEBUG MESSAGE in MacroAssembler::debug32 Summary: Interpreter expects to see methodOop in rbx on method entry, which needs to be restored after call to profile_method. Reviewed-by: kvn, never

7012965: Fix failed on sparc for 7009756: volatile variables could be broken throw reflection API Summary: Use LDX/STX on v9 and LDD/STD on v8 sparc for volatile long moves. Reviewed-by: never

6966589: hs16-b08 causes java.lang.StackOverflowError Reviewed-by: mchung, dholmes, chrisphi

7011940: iCMS: SIGSEGV in SweepClosure::do_already_free_chunk(FreeChunk*)+0x360 Summary: Revert a (relaxed version of the) bounds-check that was incorrectly removed in the fix for 7008136. Reviewed-by: jmasa, johnc

6941122: G1: UseLargePages does not work with G1 garbage collector Summary: Pass the value of UseLargePages instead of false as the "large" parameter when reserving the G1 heap. Reviewed-by: tonyp, johnc, phh

6994297: G1: do first-level slow-path allocations with a CAS Summary: First attempt to allocate out the current alloc region using a CAS instead of taking the Heap_lock (first level of G1's slow allocation path). Only if that fails and it's necessary to replace the current alloc region take the Heap_lock (that's the second level of G1's slow allocation path). Reviewed-by: johnc, brutisso, ysr

7007068: G1: refine the BOT during evac failure handling Summary: During evacuation failure handling we refine the BOT to reflect the location of all the objects in the regions we scan. The changeset includes some minor cleanup: a) non-product print_on() method on the G1 BOT class, b) added more complete BOT verification during heap / region verification, c) slight modification to the BOT set up for humongous regions to be more consistent with the BOT set up during evac failure handling, and d) removed a couple of unused methods. Reviewed-by: johnc, ysr

7008136: CMS: assert((HeapWord*)nextChunk <= _limit) failed: sweep invariant Summary: The recorded _sweep_limit may not necessarily remain a block boundary as the old generation expands during a concurrent cycle. Terminal actions inside the sweep closure need to be aware of this as they cross over the limit. Reviewed-by: johnc, minqi

7009828: Fix for 6938627 breaks visualvm monitoring when -Djava.io.tmpdir is defined Summary: Change get_temp_directory() back to /tmp and %TEMP% like it always was and where the tools expect it to be. Reviewed-by: phh, dcubed, kamg, alanb

6994753: Implement optional hook to a Java method at VM startup. Reviewed-by: mchung, acorn

7011463: Sparc MacroAssembler::incr_allocated_bytes() needs a RegisterOrConstant argument Summary: Replaced incr_allocated_bytes() formals var_size_in_bytes and con_size_in_bytes with a single RegisterOrConstant formal. Reviewed-by: twisti, jcoomes

6814943: getcpool001 catches more than one JvmtiThreadState problem Summary: Mark field volatile, use membars, and change access order to close race Reviewed-by: dcubed, dholmes

6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent Summary: Make JvmtiGCMark safe to run non-safepoint and instrument CMS Reviewed-by: ysr, dcubed

7010665: Misplaced membar in C1 implementation of Unsafe.get/putXXX Summary: Modify membars to match regular volatile variable handling Reviewed-by: iveresov, kvn, never

7011627: C1: call_RT must support targets that don't fit in wdisp30 Summary: Make both compilers emit near and far calls when necessary. Reviewed-by: never, kvn, phh

7011386: race in objArrayKlass::array_klass_impl Summary: Move _lower_dimension field initialization before _higher_dimension and add storestore barrier. Reviewed-by: dholmes, iveresov, never

4930919: race condition in MDO creation at back branch locations Summary: Reuse set_method_data_for_bcp() to setup mdp after MDO creation. Reviewed-by: kvn, never

7010913: JSR 292 ciMethodHandle does not handle MethodHandleCompiler exceptions properly Reviewed-by: kvn, never

7010180: JSR 292 InvokeDynamicPrintArgs fails with: assert(_adapter == NULL) failed: init'd to NULL Reviewed-by: never

6876037: CTW fails jdk7/hotspot/src/share/vm/opto/type.cpp:2055. assert(bits,"Use TypePtr for NULL") Summary: Add missing 0 value check in TypeRawPtr::add_offset(). Reviewed-by: never

7009756: volatile variables could be broken throw reflection API Summary: Use Atomic::load() and Atomic::store() to access a volatile long. Reviewed-by: iveresov, jrose, dholmes, never

7010618: C1: array length should be treated at int on 64bit during array allocation Summary: Sign-extend the length argument during array allocation Reviewed-by: never, kvn

7012348: Bump the HS20 build number to 07 Summary: Update the HS20 build number to 07 Reviewed-by: jcoomes

Added tag hs20-b06 for changeset abf8b0ea66cb

Added tag jdk7-b127 for changeset afc10913decb

6950375: Remove msvcrt.dll from the Windows JRE bundles Reviewed-by: prr

7009969: Remove SKIP_OPENJDK_BUILD from top Makefile Reviewed-by: robilad

7013739: jdk_rmi target is missing in the top repo's test/Makefile Reviewed-by: ohair, igor

Added tag jdk7-b127 for changeset 6485675c3e33

Added tag jdk7-b127 for changeset f83cd8bd35c6

Added tag jdk7-b126 for changeset ecd42a8e578e

Added tag jdk7-b126 for changeset b3d0df94a2c9

Added tag jdk7-b126 for changeset b1e3d8548ad2

Added tag jdk7-b126 for changeset 99921385f9e6

Added tag jdk7-b126 for changeset 3b85a5b1538a

Added tag jdk7-b126 for changeset 58ca438889f6

Added tag jdk7-b126 for changeset abcb441e62bd

Added tag jdk7-b126 for changeset f1df06807698

7010194: several langtools regression failures after JSR 292 changes (b123) Summary: Some regression tests rely on unsupported JSR 292 features Reviewed-by: jjg

6982992: Tests CheckAttributedTree.java, JavacTreeScannerTest.java, and SourceTreeeScannerTest.java timeout Summary: Hoist some invariant code out of a loop Reviewed-by: ksrini

7008869: Debug printlns accidentally added to make/build.xml Summary: Delete bogus echo statements Reviewed-by: ksrini

7008378: javac bootstrap launcher fails on cygwin when called via an absolute path Summary: Use cygpath if it is cygwin Reviewed-by: ksrini

6567415: Neverending loop in ClassReader Reviewed-by: jjg

7006564: NPE in javac running test/tools/javac/nio/compileTest/CompileTest.java Reviewed-by: mcimadamore, alanb

6999891: DefaultFileManager incorrect Reviewed-by: darcy

6999460: Glassfish build with JDK 6 / 7 is 5x-10x slower on Windows than on Linux Summary: Fixed JavacFileManager to not treat a non-existant pathname as a directory. Reviewed-by: jjg

Added tag jdk7-b125 for changeset ae40314fa64e

7006853: Integrate JAX-WS 2.2.2 RI into JDK 7 Reviewed-by: ramap

Added tag jdk7-b125 for changeset a45e9dd33dbb

7007257: jaxp 1.4.5 jdk7 1st integration Reviewed-by: joehw

Added tag jdk7-b125 for changeset c477817f26b9

Added tag jdk7-b125 for changeset ad6f4daff46b

7010537: javah no longer depends on javadoc Reviewed-by: ohair

7009618: regression test failed caused by the fix for 7003462 Summary: avoid caching the "ended" Inflater in ZipFile class Reviewed-by: alanb

7010192: InetAddress.isReachable hits ShouldNotReachHere with hs20-b04 (win) Reviewed-by: chegar

6924489: sun.security.pkcs11.wrapper.PKCS11Exception: CKR_OPERATION_NOT_INITIALIZED Summary: Reset cipher state to un-initialized wherever necessary. Reviewed-by: weijun

7005984: 3/3 Incorrect values of S0C and S0CMX appear with -gcnewcapacity in jstat Summary: Swap S0C and S0CMX column values. Reviewed-by: ohair, dholmes, poonam

7002386: (launcher) fix XshowSettings Reviewed-by: darcy, mchung, naoto

6581254: pkcs11 provider fails to parse configuration file contains windows short path Summary: Modified configuration parsing code to support "~". Reviewed-by: weijun

6996365: Evaluate the priorities of cipher suites Reviewed-by: wetmore

6560348: PIT : java/awt/xembed/server/RunTestXEmbed.java fails Summary: Testcase correction. Reviewed-by: anthony

6968933: Clip loop() deadlock in DirectAudioDevice$DirectClip.run Reviewed-by: amenkov

6996367: improve HandshakeHash Reviewed-by: xuelei

6880112: Project Coin: Port JDK core library code to use diamond operator Reviewed-by: darcy, lancea, alanb, briangoetz, mduigou, mchung

7007157: (pack200) stripping attributes causes a NPE Reviewed-by: jrose, mduigou, dholmes

6975866: api/org_ietf/jgss/GSSContext/index.html#wrapUnwrapIOTest started to fail since jdk7 b102 Reviewed-by: valeriep

6980447: Rhino JavaScript engine code in jdk-7 has to updated with the latest code from Rhino 1.7R3. Summary: Updating Rhino javascript engine with version 1.7R3. Issue 6427783 (E4X support is missing from Sun's Mozilla JavaScript implementation) is also fixed as a side-effect. Reviewed-by: alanb, jjh

7006265: Javadoc warnings Reviewed-by: weijun

6927816: Demo crash in heaptracker with Non-Sun JDK due to possible violation of JNI spec Reviewed-by: ohair, alanb Contributed-by: spoole@uk.ibm.com