JCK based test
lang/EXPR/expr751/expr75101m5/expr75101m5_rt
lang/EXPR/expr751/expr75101m5/expr75101m5_rt.html
crashes in nightly with report below

;; Using jvm: "/export/local/common/jdk/baseline/linux-amd64/jre/lib/amd64/server/libjvm.so"
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f32aeccc48c, pid=2074, tid=139855649453824
#
# JRE version: 7.0-b147
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.0-b06-internal-201112030540.kvn.7117282-fastdebug compiled mode linux-amd64 )
# Problematic frame:
# V [libjvm.so+0x7e848c] JNIHandleBlock::release_block(JNIHandleBlock*, Thread*)+0x3c
#
# Core dump written. Default location: /export/local/56727.JDK7.NIGHTLY.VM_linux-amd64_jck_server_comp_lang_EXPR_expr751/results/core or core.2074
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#

.....

Stack: [0x00007f32ae3e3000,0x00007f32ae4e4000], sp=0x00007f32ae4e1e38, free space=1019k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x7e848c] JNIHandleBlock::release_block(JNIHandleBlock*, Thread*)+0x3c;; JNIHandleBlock::release_block(JNIHandleBlock*, Thread*)+0x3c
V [libjvm.so+0x7711eb] JavaCalls::call_helper(JavaValue*, methodHandle*, JavaCallArguments*, Thread*)+0x78b;; JavaCalls::call_helper(JavaValue*, methodHandle*, JavaCallArguments*, Thread*)+0x78b
V [libjvm.so+0x76ec37] JavaCalls::call_special(JavaValue*, KlassHandle, Symbol*, Symbol*, JavaCallArguments*, Thread*)+0xc7;; JavaCalls::call_special(JavaValue*, KlassHandle, Symbol*, Symbol*, JavaCallArguments*, Thread*)+0xc7
V [libjvm.so+0x642b69] Exceptions::new_exception(Thread*, Symbol*, Symbol*, JavaCallArguments*, Handle, Handle, Handle)+0x599;; Exceptions::new_exception(Thread*, Symbol*, Symbol*, JavaCallArguments*, Handle, Handle, Handle)+0x599
V [libjvm.so+0x642e1e] Exceptions::new_exception(Thread*, Symbol*, char const*, Handle, Handle, Handle, Exceptions::ExceptionMsgToUtf8Mode)+0x20e;; Exceptions::new_exception(Thread*, Symbol*, char const*, Handle, Handle, Handle, Exceptions::ExceptionMsgToUtf8Mode)+0x20e
V [libjvm.so+0x642e9c] Exceptions::new_exception(Thread*, Symbol*, char const*, Exceptions::ExceptionMsgToUtf8Mode)+0x6c;; Exceptions::new_exception(Thread*, Symbol*, char const*, Exceptions::ExceptionMsgToUtf8Mode)+0x6c
V [libjvm.so+0xb0ba8f] SharedRuntime::throw_NullPointerException_at_call(JavaThread*)+0xdf;; SharedRuntime::throw_NullPointerException_at_call(JavaThread*)+0xdf
v ~RuntimeStub::NullPointerException at call throw_exception
J javasoft.sqe.tests.lang.expr751.expr75101m5.expr75101m5.run([Ljava/lang/String;Ljava/io/PrintStream;)I

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
v ~RuntimeStub::NullPointerException at call throw_exception
J javasoft.sqe.tests.lang.expr751.expr75101m5.expr75101m5.run([Ljava/lang/String;Ljava/io/PrintStream;)I
J javasoft.sqe.tests.lang.expr751.expr75101m5.expr75101m5.main([Ljava/lang/String;)V
v ~StubRoutines::call_stub