--- a/hotspot/src/share/vm/ci/ciEnv.cpp	Tue Aug 05 14:18:44 2014 +0000
+++ b/hotspot/src/share/vm/ci/ciEnv.cpp	Thu Aug 07 12:18:58 2014 -0700
@@ -86,7 +86,8 @@
 
 // ------------------------------------------------------------------
 // ciEnv::ciEnv
-ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter) {
+ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter)
+  : _ciEnv_arena(mtCompiler) {
   VM_ENTRY_MARK;
 
   // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
@@ -144,7 +145,7 @@
   _jvmti_can_pop_frame = false;
 }
 
-ciEnv::ciEnv(Arena* arena) {
+ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
   ASSERT_IN_VM;
 
   // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.