JDK-8163969 : Cyclic interface initialization causes JVM crash
- Type: Bug
- Component: hotspot
- Sub-Component: runtime
- Affected Version: 8u101,9
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- OS: generic
- CPU: generic
- Submitted: 2016-08-12
- Updated: 2017-11-29
- Resolved: 2016-09-21
The Version table provides details related to the release that this issue/RFE will be addressed.
Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
| JDK 8 | JDK 9 |
|---|---|
8u152Fixed  |
9 b140Fixed |
Related Reports
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Description
FULL PRODUCT VERSION :
JRE version: Java(TM) SE Runtime Environment (8.0_101-b13) (build 1.8.0_101-b13)
FULL OS VERSION :
Microsoft Windows [Version 6.1.7601]
A DESCRIPTION OF THE PROBLEM :
Cyclic Interface initialization with exceptions causes an reproducible core dump.
Background Info: I'm a developer of the JaCoCo code coverage library. While preparing test cases for cyclic Interface initialization I encountered this issue and isolated a simple reproducer.
THE PROBLEM WAS REPRODUCIBLE WITH -Xint FLAG: Yes
THE PROBLEM WAS REPRODUCIBLE WITH -server FLAG: Yes
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and start the source code below. Also available here: https://gist.github.com/marchof/c0ac04a2abb4b163bf410e8018a72cb7
EXPECTED VERSUS ACTUAL BEHAVIOR :
Expected
Proper exception handling
Actual
JVM crash
ERROR MESSAGES/STACK TRACES THAT OCCUR :
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000000006fb01b55, pid=5184, tid=0x000000000000453c
#
# JRE version: Java(TM) SE Runtime Environment (8.0_101-b13) (build 1.8.0_101-b13)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.101-b13 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# V [jvm.dll+0x201b55]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
--------------- T H R E A D ---------------
Current thread (0x00000000001ee800): JavaThread "main" [_thread_in_vm, id=17724, stack(0x0000000002050000,0x0000000002150000)]
siginfo: ExceptionCode=0xc0000005, reading address 0x0000000000000000
Registers:
RAX=0x0000000000000000, RBX=0x00000000001ee800, RCX=0x0000000000000000, RDX=0x0000000000000000
RSP=0x000000000214ede0, RBP=0x000000000214ee69, RSI=0x0000000000000005, RDI=0x00000000001ee800
R8 =0x00000000001ee800, R9 =0x0000000060cd0000, R10=0x0000000000000000, R11=0x00000007c0060400
R12=0x0000000000000000, R13=0x0000000018f80290, R14=0x000000000214f210, R15=0x00000000001ee800
RIP=0x000000006fb01b55, EFLAGS=0x0000000000010202
Top of Stack: (sp=0x000000000214ede0)
0x000000000214ede0: 00000000001ee800 000000000214ee89
0x000000000214edf0: 0000000000000000 00000000001ef6e8
0x000000000214ee00: 0000000001dc2620 000000000214ee20
0x000000000214ee10: 00000000001ee800 00000000001ee800
0x000000000214ee20: 0000000781e27a58 0000000781e277d0
0x000000000214ee30: 0000000000000000 0000000001d7c970
0x000000000214ee40: 0000000001d7c9c0 0000000001d7cb50
0x000000000214ee50: 0000000001d7b034 0000000001d7b050
0x000000000214ee60: ffffffff00000004 000000006fa10101
0x000000000214ee70: 00000000001ef2b0 000000000214ee20
0x000000000214ee80: 000000000214ee68 0000000800000002
0x000000000214ee90: 0000f9edefabc301 0000000000000041
0x000000000214eea0: 0000f9edefabc952 00000000001ee800
0x000000000214eeb0: 0000000000000005 00000000001ee800
0x000000000214eec0: 0000000000000000 000000006fb3cdb0
0x000000000214eed0: 0000000000000000 00000000001ee800
Instructions: (pc=0x000000006fb01b55)
0x000000006fb01b35: 8b 5c 24 30 48 83 c4 20 5f c3 cc 48 89 4c 24 08
0x000000006fb01b45: 55 53 56 57 48 8d 6c 24 c1 48 81 ec c8 00 00 00
0x000000006fb01b55: 48 8b 01 49 8b f0 0f b6 fa 48 8b 18 48 8b c3 83
0x000000006fb01b65: e0 07 48 83 f8 05 0f 85 26 01 00 00 48 f7 c3 80
Register to memory mapping:
RAX=0x0000000000000000 is an unknown value
RBX=0x00000000001ee800 is a thread
RCX=0x0000000000000000 is an unknown value
RDX=0x0000000000000000 is an unknown value
RSP=0x000000000214ede0 is pointing into the stack for thread: 0x00000000001ee800
RBP=0x000000000214ee69 is pointing into the stack for thread: 0x00000000001ee800
RSI=0x0000000000000005 is an unknown value
RDI=0x00000000001ee800 is a thread
R8 =0x00000000001ee800 is a thread
R9 =0x0000000060cd0000 is an unknown value
R10=0x0000000000000000 is an unknown value
R11=0x00000007c0060400 is pointing into metadata
R12=0x0000000000000000 is an unknown value
R13=0x0000000018f80290 is pointing into metadata
R14=0x000000000214f210 is pointing into the stack for thread: 0x00000000001ee800
R15=0x00000000001ee800 is a thread
Stack: [0x0000000002050000,0x0000000002150000], sp=0x000000000214ede0, free space=1019k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0x201b55]
V [jvm.dll+0x23cdb0]
V [jvm.dll+0x107fea]
V [jvm.dll+0x10d227]
V [jvm.dll+0x10d191]
V [jvm.dll+0x114f23]
V [jvm.dll+0x115115]
V [jvm.dll+0xbb82d]
C 0x0000000002445327
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j JvmCrash.main([Ljava/lang/String;)V+0
v ~StubRoutines::call_stub
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x000000001a9fa000 JavaThread "Service Thread" daemon [_thread_blocked, id=16376, stack(0x000000001b670000,0x000000001b770000)]
0x000000001a97b000 JavaThread "C1 CompilerThread2" daemon [_thread_blocked, id=7620, stack(0x000000001b470000,0x000000001b570000)]
0x000000001a979800 JavaThread "C2 CompilerThread1" daemon [_thread_blocked, id=12668, stack(0x000000001b280000,0x000000001b380000)]
0x000000001a972800 JavaThread "C2 CompilerThread0" daemon [_thread_blocked, id=16892, stack(0x000000001b010000,0x000000001b110000)]
0x0000000019578800 JavaThread "Attach Listener" daemon [_thread_blocked, id=3156, stack(0x000000001ada0000,0x000000001aea0000)]
0x0000000019576000 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=13616, stack(0x000000001aee0000,0x000000001afe0000)]
0x000000001955c000 JavaThread "Finalizer" daemon [_thread_blocked, id=14320, stack(0x000000001a780000,0x000000001a880000)]
0x0000000019515000 JavaThread "Reference Handler" daemon [_thread_blocked, id=18104, stack(0x000000001a5f0000,0x000000001a6f0000)]
=>0x00000000001ee800 JavaThread "main" [_thread_in_vm, id=17724, stack(0x0000000002050000,0x0000000002150000)]
Other Threads:
0x000000001950d000 VMThread [stack: 0x000000001a4a0000,0x000000001a5a0000] [id=14356]
0x000000001aa18800 WatcherThread [stack: 0x000000001b780000,0x000000001b880000] [id=12656]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap:
PSYoungGen total 56320K, used 4672K [0x0000000781a00000, 0x0000000785880000, 0x00000007c0000000)
eden space 48640K, 9% used [0x0000000781a00000,0x0000000781e90080,0x0000000784980000)
from space 7680K, 0% used [0x0000000785100000,0x0000000785100000,0x0000000785880000)
to space 7680K, 0% used [0x0000000784980000,0x0000000784980000,0x0000000785100000)
ParOldGen total 128512K, used 0K [0x0000000704e00000, 0x000000070cb80000, 0x0000000781a00000)
object space 128512K, 0% used [0x0000000704e00000,0x0000000704e00000,0x000000070cb80000)
Metaspace used 2814K, capacity 4488K, committed 4864K, reserved 1056768K
class space used 309K, capacity 388K, committed 512K, reserved 1048576K
Card table byte_map: [0x00000000117e0000,0x0000000011dc0000] byte_map_base: 0x000000000dfb9000
Marking Bits: (ParMarkBitMap*) 0x000000007011a6d0
Begin Bits: [0x0000000012810000, 0x00000000156d8000)
End Bits: [0x00000000156d8000, 0x00000000185a0000)
Polling page: 0x00000000001c0000
CodeCache: size=245760Kb used=1235Kb max_used=1235Kb free=244524Kb
bounds [0x0000000002420000, 0x0000000002690000, 0x0000000011420000]
total_blobs=320 nmethods=85 adapters=148
compilation: enabled
Compilation events (10 events):
Event: 0.515 Thread 0x000000001a97b000 nmethod 78 0x000000000254e8d0 code [0x000000000254ea20, 0x000000000254eb50]
Event: 0.515 Thread 0x000000001a97b000 79 3 java.util.BitSet::checkInvariants (111 bytes)
Event: 0.515 Thread 0x000000001a97b000 nmethod 79 0x000000000254ebd0 code [0x000000000254ed20, 0x000000000254eeb0]
Event: 0.516 Thread 0x000000001a97b000 80 3 java.lang.String::substring (79 bytes)
Event: 0.516 Thread 0x000000001a97b000 nmethod 80 0x000000000254ef10 code [0x000000000254f0c0, 0x000000000254f578]
Event: 0.516 Thread 0x000000001a97b000 81 3 java.lang.String::endsWith (17 bytes)
Event: 0.517 Thread 0x000000001a97b000 nmethod 81 0x000000000254f790 code [0x000000000254f900, 0x000000000254fb28]
Event: 0.517 Thread 0x000000001a97b000 82 1 java.net.URL::getPort (5 bytes)
Event: 0.517 Thread 0x000000001a97b000 nmethod 82 0x000000000254fc50 code [0x000000000254fda0, 0x000000000254feb0]
Event: 0.518 Thread 0x000000001a97b000 84 s! 3 sun.misc.URLClassPath::getLoader (197 bytes)
GC Heap History (0 events):
No events
Deoptimization events (0 events):
No events
Internal exceptions (8 events):
Event: 0.257 Thread 0x00000000001ee800 Exception <a 'java/lang/NoSuchMethodError': Method sun.misc.Unsafe.defineClass(Ljava/lang/String;[BII)Ljava/lang/Class; name or signature does not match> (0x0000000781a07cc0) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u101\7261\hotspot\s���2o���!m���?
Event: 0.257 Thread 0x00000000001ee800 Exception <a 'java/lang/NoSuchMethodError': Method sun.misc.Unsafe.prefetchRead(Ljava/lang/Object;J)V name or signature does not match> (0x0000000781a07fa8) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u101\7261\hotspot\src\share\vm\prims\T���"������1���?
Event: 0.409 Thread 0x00000000001ee800 Exception <a 'java/util/zip/ZipException'> (0x0000000781a91950) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u101\7261\hotspot\src\share\vm\prims\jni.cpp, line 709]
Event: 0.410 Thread 0x00000000001ee800 Exception <a 'java/security/PrivilegedActionException'> (0x0000000781a91bf0) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u101\7261\hotspot\src\share\vm\prims\jvm.cpp, line 1386]
Event: 0.410 Thread 0x00000000001ee800 Exception <a 'java/security/PrivilegedActionException'> (0x0000000781a91e00) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u101\7261\hotspot\src\share\vm\prims\jvm.cpp, line 1386]
Event: 0.434 Thread 0x00000000001ee800 Exception <a 'java/security/PrivilegedActionException'> (0x0000000781aae248) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u101\7261\hotspot\src\share\vm\prims\jvm.cpp, line 1386]
Event: 0.434 Thread 0x00000000001ee800 Exception <a 'java/security/PrivilegedActionException'> (0x0000000781aae458) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u101\7261\hotspot\src\share\vm\prims\jvm.cpp, line 1386]
Event: 0.520 Thread 0x00000000001ee800 Exception <a 'java/lang/ExceptionInInitializerError'> (0x0000000781e27a58) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u101\7261\hotspot\src\share\vm\oops\instanceKlass.cpp, line 969]
Events (10 events):
Event: 0.509 loading class JvmCrash$1
Event: 0.509 loading class JvmCrash$1 done
Event: 0.511 loading class JvmCrash$Target
Event: 0.511 loading class JvmCrash$Target done
Event: 0.514 loading class JvmCrash$Base
Event: 0.514 loading class JvmCrash$Base done
Event: 0.517 loading class JvmCrash$Base$1
Event: 0.517 loading class JvmCrash$Base$1 done
Event: 0.519 loading class java/lang/ExceptionInInitializerError
Event: 0.520 loading class java/lang/ExceptionInInitializerError done
Dynamic libraries:
0x000000013f040000 - 0x000000013f077000 C:\devtools\jdk1.8.0_101\bin\javaw.exe
0x0000000077b00000 - 0x0000000077caa000 C:\Windows\SYSTEM32\ntdll.dll
0x00000000779e0000 - 0x0000000077aff000 C:\Windows\system32\kernel32.dll
0x000007fefd8a0000 - 0x000007fefd90a000 C:\Windows\system32\KERNELBASE.dll
0x000007fefef60000 - 0x000007feff03b000 C:\Windows\system32\ADVAPI32.dll
0x000007feff680000 - 0x000007feff71f000 C:\Windows\system32\msvcrt.dll
0x000007feff720000 - 0x000007feff73f000 C:\Windows\SYSTEM32\sechost.dll
0x000007fefeba0000 - 0x000007fefeccd000 C:\Windows\system32\RPCRT4.dll
0x00000000778e0000 - 0x00000000779da000 C:\Windows\system32\USER32.dll
0x000007feff040000 - 0x000007feff0a7000 C:\Windows\system32\GDI32.dll
0x000007fefeb30000 - 0x000007fefeb3e000 C:\Windows\system32\LPK.dll
0x000007feff2e0000 - 0x000007feff3aa000 C:\Windows\system32\USP10.dll
0x000007fefbed0000 - 0x000007fefc0c4000 C:\Windows\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.18837_none_fa3b1e3d17594757\COMCTL32.dll
0x000007feff8b0000 - 0x000007feff921000 C:\Windows\system32\SHLWAPI.dll
0x000007fefeb40000 - 0x000007fefeb6e000 C:\Windows\system32\IMM32.DLL
0x000007feff740000 - 0x000007feff849000 C:\Windows\system32\MSCTF.dll
0x0000000060cd0000 - 0x0000000060da2000 C:\devtools\jdk1.8.0_101\jre\bin\msvcr100.dll
0x000000006f900000 - 0x000000007019a000 C:\devtools\jdk1.8.0_101\jre\bin\server\jvm.dll
0x000007fef7e60000 - 0x000007fef7e69000 C:\Windows\system32\WSOCK32.dll
0x000007feff0b0000 - 0x000007feff0fd000 C:\Windows\system32\WS2_32.dll
0x000007fefeb90000 - 0x000007fefeb98000 C:\Windows\system32\NSI.dll
0x000007fef9570000 - 0x000007fef95ab000 C:\Windows\system32\WINMM.dll
0x000007fefc960000 - 0x000007fefc96c000 C:\Windows\system32\VERSION.dll
0x0000000077cc0000 - 0x0000000077cc7000 C:\Windows\system32\PSAPI.DLL
0x000000006f0e0000 - 0x000000006f0ef000 C:\devtools\jdk1.8.0_101\jre\bin\verify.dll
0x0000000069e90000 - 0x0000000069eb9000 C:\devtools\jdk1.8.0_101\jre\bin\java.dll
0x000000006e820000 - 0x000000006e836000 C:\devtools\jdk1.8.0_101\jre\bin\zip.dll
0x000007fefdc40000 - 0x000007fefe9ca000 C:\Windows\system32\SHELL32.dll
0x000007feffc00000 - 0x000007feffe03000 C:\Windows\system32\ole32.dll
0x000007fefd880000 - 0x000007fefd88f000 C:\Windows\system32\profapi.dll
0x000007fef2b60000 - 0x000007fef2c85000 C:\Windows\system32\dbghelp.dll
VM Arguments:
jvm_args: -Dfile.encoding=UTF-8
java_command: JvmCrash
java_class_path (initial): D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\org.slf4j_1.7.7.201606010400\jars\slf4j-log4j12-1.7.7.jar;D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\org.slf4j_1.7.7.201606010400\jars\slf4j-api-1.7.7.jar;D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\org.slf4j_1.7.7.201606010400\jars\jul-to-slf4j-1.7.7.jar;D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\org.apache.commons.configuration_1.9.0.201606010400\jars\commons-configuration-1.9.jar;D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\org.apache.commons.lang_2.6.0.201606010400\jars\commons-lang-2.6.jar;D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\org.mozilla.javascript_1.6.5.201606010400\jars\js-1.6R5.jar;D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\org.joda.time_1.6.2.201606010400\jars\joda-time-1.6.2.jar;D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\com.tibco.tibrv_8.4.2.201606010400\jars\tibrvnative-8.4.2.jar;D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\org.apache.log4j_1.2.17.201606010400\jars\log4j-1.2.17.jar;D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\org.apache.commons.net_3.1.0.201606010400\jars\commons-net-3.1.jar;D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\org.eclipse.osgi_3.8.2.v20130124-134944.jar;D:\sbbdev\eclipse-ws-rcs-trunk\.metadata\.plugins\org.eclipse.pde.core\.bundle_pool\plugins\org.apache.commons.collections_3.2.2.201606010400\jars\commons-collections-3.2.2.jar;D:\sbbdev\eclipse-ws-rcs-trunk\RCS_D_COMMON\bin;D:\sbbdev\eclipse-ws-rcs-trunk\ch.sbb.rcsd.transfer.common\
Launcher Type: SUN_STANDARD
Environment Variables:
PATH=C:/Program Files/Java/jre1.8.0_65/bin/server;C:/Program Files/Java/jre1.8.0_65/bin;C:/Program Files/Java/jre1.8.0_65/lib/amd64;C:\Program Files\tibco\tibrv\8.4\bin;C:\Program Files\tibco\tibrv\8.4\bin;C:\ProgramData\Oracle\Java\javapath;C:\devtools\oracle\client-11.2.0;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\AutoInst\Tools;C:\Program Files (x86)\Intel\OpenCL SDK\3.0\bin\x86;C:\Program Files (x86)\Intel\OpenCL SDK\3.0\bin\x64;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files (x86)\Microsoft Application Virtualization Client;C:\Program Files\TortoiseSVN\bin;C:\devtools\jdk1.7.0_55\jre\bin;C:\devtools\sliksvn-1.8.8\bin;C:\devtools\oracle\product\11.2.0\client_1\bin;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\OpenText\Viewer\bin;C:\devtools\nodejs-4.2.6\;C:\Users\ue30465\.babun;c:\devtools\babun\.babun;C:\Users\ue30465\AppData\Roaming\npm;C:\devtools\rcspaeckli-201603041401;
USERNAME=ue30465
OS=Windows_NT
PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 69 Stepping 1, GenuineIntel
--------------- S Y S T E M ---------------
OS: Windows 7 , 64 bit Build 7601 (6.1.7601.23392)
CPU:total 4 (2 cores per cpu, 2 threads per core) family 6 model 69 stepping 1, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, avx, avx2, aes, clmul, erms, rtm, lzcnt, ht, tsc, tscinvbit, bmi1, bmi2
Memory: 4k page, physical 12262924k(5171508k free), swap 24523992k(16816712k free)
vm_info: Java HotSpot(TM) 64-Bit Server VM (25.101-b13) for windows-amd64 JRE (1.8.0_101-b13), built on Jun 22 2016 01:21:29 by "java_re" with MS VC++ 10.0 (VS2010)
time: Fri Aug 12 14:03:06 2016
elapsed time: 0 seconds (0d 0h 0m 0s)
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
/**
* This snippet crashes with
* - Java(TM) SE Runtime Environment (8.0_101-b13) (build 1.8.0_101-b13)
*/
public class JvmCrash {
interface Base {
static final Object CONST = new Target(){}.someMethod();
default void important() {
// Super interfaces with default methods get initialized (JLS 12.4.1)
}
}
interface Target extends Base {
default Object someMethod() {
throw new RuntimeException();
}
}
public static void main(String[] args) {
new Target() {};
}
}
---------- END SOURCE ----------
CUSTOMER SUBMITTED WORKAROUND :
Don't test wired corner cases ;-)
Comments
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