--- a/hotspot/.hgtags	Tue Jun 13 16:19:49 2017 -0700
+++ b/hotspot/.hgtags	Tue Jun 13 23:22:58 2017 +0000
@@ -575,3 +575,4 @@
 38a240fd58a287acb1963920b92ed4d9c2fd39e3 jdk-9+170
 d53171650a2cc6c6f699c966c533b914ca9c0602 jdk-9+171
 1ae9e84f68b359420d2d153ecfe5ee2903e33a2e jdk-9+172
+e64b1cb48d6e7703928a9d1da106fc27f8cb65fd jdk-9+173

--- a/hotspot/src/cpu/aarch64/vm/vtableStubs_aarch64.cpp	Tue Jun 13 16:19:49 2017 -0700
+++ b/hotspot/src/cpu/aarch64/vm/vtableStubs_aarch64.cpp	Tue Jun 13 23:22:58 2017 +0000
@@ -51,6 +51,11 @@
 VtableStub* VtableStubs::create_vtable_stub(int vtable_index) {
   const int aarch64_code_length = VtableStub::pd_code_size_limit(true);
   VtableStub* s = new(aarch64_code_length) VtableStub(true, vtable_index);
+  // Can be NULL if there is no free space in the code cache.
+  if (s == NULL) {
+    return NULL;
+  }
+
   ResourceMark rm;
   CodeBuffer cb(s->entry_point(), aarch64_code_length);
   MacroAssembler* masm = new MacroAssembler(&cb);

--- a/hotspot/src/share/vm/code/codeCache.cpp	Tue Jun 13 16:19:49 2017 -0700
+++ b/hotspot/src/share/vm/code/codeCache.cpp	Tue Jun 13 23:22:58 2017 +0000
@@ -130,6 +130,7 @@
 // Iterate over all CodeHeaps
 #define FOR_ALL_HEAPS(heap) for (GrowableArrayIterator<CodeHeap*> heap = _heaps->begin(); heap != _heaps->end(); ++heap)
 #define FOR_ALL_NMETHOD_HEAPS(heap) for (GrowableArrayIterator<CodeHeap*> heap = _nmethod_heaps->begin(); heap != _nmethod_heaps->end(); ++heap)
+#define FOR_ALL_ALLOCABLE_HEAPS(heap) for (GrowableArrayIterator<CodeHeap*> heap = _allocable_heaps->begin(); heap != _allocable_heaps->end(); ++heap)
 
 // Iterate over all CodeBlobs (cb) on the given CodeHeap
 #define FOR_ALL_BLOBS(cb, heap) for (CodeBlob* cb = first_blob(heap); cb != NULL; cb = next_blob(heap, cb))
@@ -140,10 +141,11 @@
 bool CodeCache::_needs_cache_clean = false;
 nmethod* CodeCache::_scavenge_root_nmethods = NULL;
 
-// Initialize array of CodeHeaps
+// Initialize arrays of CodeHeap subsets
 GrowableArray<CodeHeap*>* CodeCache::_heaps = new(ResourceObj::C_HEAP, mtCode) GrowableArray<CodeHeap*> (CodeBlobType::All, true);
 GrowableArray<CodeHeap*>* CodeCache::_compiled_heaps = new(ResourceObj::C_HEAP, mtCode) GrowableArray<CodeHeap*> (CodeBlobType::All, true);
 GrowableArray<CodeHeap*>* CodeCache::_nmethod_heaps = new(ResourceObj::C_HEAP, mtCode) GrowableArray<CodeHeap*> (CodeBlobType::All, true);
+GrowableArray<CodeHeap*>* CodeCache::_allocable_heaps = new(ResourceObj::C_HEAP, mtCode) GrowableArray<CodeHeap*> (CodeBlobType::All, true);
 
 void CodeCache::check_heap_sizes(size_t non_nmethod_size, size_t profiled_size, size_t non_profiled_size, size_t cache_size, bool all_set) {
   size_t total_size = non_nmethod_size + profiled_size + non_profiled_size;
@@ -338,6 +340,7 @@
   return rs;
 }
 
+// Heaps available for allocation
 bool CodeCache::heap_available(int code_blob_type) {
   if (!SegmentedCodeCache) {
     // No segmentation: use a single code heap
@@ -391,6 +394,9 @@
   if (code_blob_type_accepts_nmethod(type)) {
     _nmethod_heaps->insert_sorted<code_heap_compare>(heap);
   }
+  if (code_blob_type_accepts_allocable(type)) {
+    _allocable_heaps->insert_sorted<code_heap_compare>(heap);
+  }
 }
 
 void CodeCache::add_heap(ReservedSpace rs, const char* name, int code_blob_type) {
@@ -620,7 +626,7 @@
 
 void CodeCache::blobs_do(void f(CodeBlob* nm)) {
   assert_locked_or_safepoint(CodeCache_lock);
-  FOR_ALL_NMETHOD_HEAPS(heap) {
+  FOR_ALL_HEAPS(heap) {
     FOR_ALL_BLOBS(cb, *heap) {
       f(cb);
     }
@@ -663,7 +669,7 @@
 
 void CodeCache::blobs_do(CodeBlobClosure* f) {
   assert_locked_or_safepoint(CodeCache_lock);
-  FOR_ALL_NMETHOD_HEAPS(heap) {
+  FOR_ALL_ALLOCABLE_HEAPS(heap) {
     FOR_ALL_BLOBS(cb, *heap) {
       if (cb->is_alive()) {
         f->do_code_blob(cb);
@@ -960,7 +966,7 @@
 
 size_t CodeCache::capacity() {
   size_t cap = 0;
-  FOR_ALL_NMETHOD_HEAPS(heap) {
+  FOR_ALL_ALLOCABLE_HEAPS(heap) {
     cap += (*heap)->capacity();
   }
   return cap;
@@ -973,7 +979,7 @@
 
 size_t CodeCache::unallocated_capacity() {
   size_t unallocated_cap = 0;
-  FOR_ALL_NMETHOD_HEAPS(heap) {
+  FOR_ALL_ALLOCABLE_HEAPS(heap) {
     unallocated_cap += (*heap)->unallocated_capacity();
   }
   return unallocated_cap;
@@ -981,7 +987,7 @@
 
 size_t CodeCache::max_capacity() {
   size_t max_cap = 0;
-  FOR_ALL_NMETHOD_HEAPS(heap) {
+  FOR_ALL_ALLOCABLE_HEAPS(heap) {
     max_cap += (*heap)->max_capacity();
   }
   return max_cap;
@@ -1007,7 +1013,7 @@
 
 size_t CodeCache::bytes_allocated_in_freelists() {
   size_t allocated_bytes = 0;
-  FOR_ALL_NMETHOD_HEAPS(heap) {
+  FOR_ALL_ALLOCABLE_HEAPS(heap) {
     allocated_bytes += (*heap)->allocated_in_freelist();
   }
   return allocated_bytes;
@@ -1015,7 +1021,7 @@
 
 int CodeCache::allocated_segments() {
   int number_of_segments = 0;
-  FOR_ALL_NMETHOD_HEAPS(heap) {
+  FOR_ALL_ALLOCABLE_HEAPS(heap) {
     number_of_segments += (*heap)->allocated_segments();
   }
   return number_of_segments;
@@ -1023,7 +1029,7 @@
 
 size_t CodeCache::freelists_length() {
   size_t length = 0;
-  FOR_ALL_NMETHOD_HEAPS(heap) {
+  FOR_ALL_ALLOCABLE_HEAPS(heap) {
     length += (*heap)->freelist_length();
   }
   return length;
@@ -1354,7 +1360,7 @@
 
 void CodeCache::print_memory_overhead() {
   size_t wasted_bytes = 0;
-  FOR_ALL_NMETHOD_HEAPS(heap) {
+  FOR_ALL_ALLOCABLE_HEAPS(heap) {
       CodeHeap* curr_heap = *heap;
       for (CodeBlob* cb = (CodeBlob*)curr_heap->first(); cb != NULL; cb = (CodeBlob*)curr_heap->next(cb)) {
         HeapBlock* heap_block = ((HeapBlock*)cb) - 1;
@@ -1400,7 +1406,7 @@
   ResourceMark rm;
 
   int i = 0;
-  FOR_ALL_NMETHOD_HEAPS(heap) {
+  FOR_ALL_ALLOCABLE_HEAPS(heap) {
     if ((_nmethod_heaps->length() >= 1) && Verbose) {
       tty->print_cr("-- %s --", (*heap)->name());
     }
@@ -1497,7 +1503,7 @@
   CodeBlob_sizes live;
   CodeBlob_sizes dead;
 
-  FOR_ALL_NMETHOD_HEAPS(heap) {
+  FOR_ALL_ALLOCABLE_HEAPS(heap) {
     FOR_ALL_BLOBS(cb, *heap) {
       if (!cb->is_alive()) {
         dead.add(cb);
@@ -1523,7 +1529,7 @@
     int number_of_blobs = 0;
     int number_of_oop_maps = 0;
     int map_size = 0;
-    FOR_ALL_NMETHOD_HEAPS(heap) {
+    FOR_ALL_ALLOCABLE_HEAPS(heap) {
       FOR_ALL_BLOBS(cb, *heap) {
         if (cb->is_alive()) {
           number_of_blobs++;

--- a/hotspot/src/share/vm/code/codeCache.hpp	Tue Jun 13 16:19:49 2017 -0700
+++ b/hotspot/src/share/vm/code/codeCache.hpp	Tue Jun 13 23:22:58 2017 +0000
@@ -85,6 +85,7 @@
   static GrowableArray<CodeHeap*>* _heaps;
   static GrowableArray<CodeHeap*>* _compiled_heaps;
   static GrowableArray<CodeHeap*>* _nmethod_heaps;
+  static GrowableArray<CodeHeap*>* _allocable_heaps;
 
   static address _low_bound;                            // Lower bound of CodeHeap addresses
   static address _high_bound;                           // Upper bound of CodeHeap addresses
@@ -237,6 +238,11 @@
     return type == CodeBlobType::All || type <= CodeBlobType::MethodProfiled;
   }
 
+  static bool code_blob_type_accepts_allocable(int type) {
+    return type <= CodeBlobType::All;
+  }
+
+
   // Returns the CodeBlobType for the given compilation level
   static int get_code_blob_type(int comp_level) {
     if (comp_level == CompLevel_none ||

--- a/hotspot/src/share/vm/compiler/compileBroker.cpp	Tue Jun 13 16:19:49 2017 -0700
+++ b/hotspot/src/share/vm/compiler/compileBroker.cpp	Tue Jun 13 23:22:58 2017 +0000
@@ -1557,7 +1557,7 @@
 
   // First thread to get here will initialize the compiler interface
 
-  if (!ciObjectFactory::is_initialized()) {
+  {
     ASSERT_IN_VM;
     MutexLocker only_one (CompileThread_lock, thread);
     if (!ciObjectFactory::is_initialized()) {