VM crash in nsk/jvmti/RedefineClasses/StressRedefine: assert failed: Corrupted constant pool

When running StressRedefine with TraceRedefineClasses on we can hit this assert.
It's seem like much bigger chans of getting this error if you run more test and concurrent.

#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/home/rehn/source/jdk/vanilla-hs/hotspot/src/share/vm/oops/constantPool.hpp:498), pid=23533, tid=23761
# assert(tag_at(which).is_invoke_dynamic()) failed: Corrupted constant pool
#
# JRE version: Java(TM) SE Runtime Environment (9.0) (fastdebug build 9-internal+0-2016-05-03-153448.rehn.vanilla-hs)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 9-internal+0-2016-05-03-153448.rehn.vanilla-hs, mixed mode, tiered, compressed oops, g1 gc, linux-amd64)
# Core dump will be written. Default location: /var/cores/core.%e.%p.%h.%t
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#

--------------- S U M M A R Y ------------

Command Line: -XX:TraceRedefineClasses=2147475455 -Xlog:disable -Xlog:all=warning:file=warnerr.%p.log::filecount=0 -agentlib:stressRedefine nsk.jvmti.RedefineClasses.StressRedefine /home/rehn/source/jdk/vanilla-hs/build/linux-x86_64-normal-server-fastdebug/images/test/hotspot/closed/tonga/bin

Host: rehn-ws, Intel(R) Xeon(R) CPU E5-2630 v3 @ 2.40GHz, 32 cores, 31G, Fedora release 23 (Twenty Three)
Time: Tue May 3 16:02:49 2016 CEST elapsed time: 32 seconds (0d 0h 0m 32s)

--------------- T H R E A D ---------------

Current thread (0x00007fa7a03bb800): JavaThread "C2 CompilerThread0" daemon [_thread_in_vm, id=23761, stack(0x00007fa69b3fc000,0x00007fa69b4fd000)]


Current CompileTask:
C2: 32220 6923 ! 4 jdk.internal.reflect.GeneratedMethodAccessor355::invoke (286 bytes)

Stack: [0x00007fa69b3fc000,0x00007fa69b4fd000], sp=0x00007fa69b4f9290, free space=1012k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x146fa9e] VMError::report_and_die(int, char const*, char const*, __va_list_tag*, Thread*, unsigned char*, void*, void*, char const*, int, unsigned long)+0x47e
V [libjvm.so+0x14704ff] VMError::report_and_die(Thread*, char const*, int, char const*, char const*, __va_list_tag*)+0x2f
V [libjvm.so+0x950df0] report_vm_error(char const*, int, char const*, char const*, ...)+0xe0
V [libjvm.so+0x941107] ConstantPool::invoke_dynamic_name_and_type_ref_index_at(int)+0x37
V [libjvm.so+0x937e78] ConstantPool::impl_name_and_type_ref_index_at(int, bool)+0x138
V [libjvm.so+0x7e8308] ciBytecodeStream::get_method_signature_index()+0x498
V [libjvm.so+0x7e8a30] ciBytecodeStream::get_method(bool&, ciSignature**)+0x550
V [libjvm.so+0x7a7a43] ciMethod::get_method_at_bci(int, bool&, ciSignature**)+0x143
V [libjvm.so+0xa3ece9] Parse::do_call()+0x509
V [libjvm.so+0x11adae9] Parse::do_one_bytecode()+0x4f9
V [libjvm.so+0x11a1a4d] Parse::do_one_block()+0x40d
V [libjvm.so+0x11a214c] Parse::do_all_blocks()+0x21c
V [libjvm.so+0x11a3c75] Parse::Parse(JVMState*, ciMethod*, float)+0xba5
V [libjvm.so+0x7300c8] ParseGenerator::generate(JVMState*)+0x138
V [libjvm.so+0xa3ebc1] Parse::do_call()+0x3e1
V [libjvm.so+0x11adae9] Parse::do_one_bytecode()+0x4f9
V [libjvm.so+0x11a1a4d] Parse::do_one_block()+0x40d
V [libjvm.so+0x11a214c] Parse::do_all_blocks()+0x21c
V [libjvm.so+0x11a3c75] Parse::Parse(JVMState*, ciMethod*, float)+0xba5
V [libjvm.so+0x7300c8] ParseGenerator::generate(JVMState*)+0x138
V [libjvm.so+0x8d8369] Compile::Compile(ciEnv*, C2Compiler*, ciMethod*, int, bool, bool, bool, DirectiveSet*)+0xcd9
V [libjvm.so+0x72ea0b] C2Compiler::compile_method(ciEnv*, ciMethod*, int, DirectiveSet*)+0x2bb
V [libjvm.so+0x8e2661] CompileBroker::invoke_compiler_on_method(CompileTask*)+0x491
V [libjvm.so+0x8e331b] CompileBroker::compiler_thread_loop()+0x37b
V [libjvm.so+0x13df66e] JavaThread::thread_main_inner()+0x15e
V [libjvm.so+0x13df84d] JavaThread::run()+0x16d
V [libjvm.so+0x1151b12] java_start(Thread*)+0x112
C [libpthread.so.0+0x760a] start_thread+0xca