# Internal Error (node.hpp:950), pid=26233, tid=1120880960
# guarantee(t != NULL) failed: must be con
#
# JRE version: Java(TM) SE Runtime Environment (8.0-b95) (build 1.8.0-ea-b95)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.0-b37 mixed mode linux-amd64 compressed oops)


Current thread (0x000000001846f800): JavaThread "C2 CompilerThread1" daemon [_thread_in_native, id=26258, stack(0x0000000042bf4000,0x0000000042cf5000)]

Stack: [0x0000000042bf4000,0x0000000042cf5000], sp=0x0000000042cefbe0, free space=1006k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x9fb7ca] VMError::report_and_die()+0x2ea
V [libjvm.so+0x49a532] report_vm_error(char const*, int, char const*, char const*)+0x62
V [libjvm.so+0x273dbf] Node::get_int() const+0x3f
V [libjvm.so+0x5b7047] IfNode::fold_compares(PhaseGVN*)+0x257
V [libjvm.so+0x5b80d2] IfNode::Ideal(PhaseGVN*, bool)+0x5a2
V [libjvm.so+0x8b94c9] PhaseIterGVN::transform_old(Node*)+0x79
V [libjvm.so+0x8b598c] PhaseIterGVN::optimize()+0x1cc
V [libjvm.so+0x447c6f] Compile::Optimize()+0x10f
V [libjvm.so+0x44afd7] Compile::Compile(ciEnv*, C2Compiler*, ciMethod*, int, bool, bool, bool)+0x1407
V [libjvm.so+0x3a150c] C2Compiler::compile_method(ciEnv*, ciMethod*, int)+0x19c
V [libjvm.so+0x4539fa] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xcba
V [libjvm.so+0x4548f0] CompileBroker::compiler_thread_loop()+0x570
V [libjvm.so+0x9ad81f] JavaThread::thread_main_inner()+0xdf
V [libjvm.so+0x9ad94c] JavaThread::run()+0x11c
V [libjvm.so+0x870948] java_start(Thread*)+0x108


Current CompileTask:
C2: 85097 11344 ! 4 java.io.ObjectOutputStream::defaultWriteFields (237 bytes)