JNI与c + +在cout，printf和方法调用中不断崩溃

我正在用C++编写我的第一个JNI程序，并且已经做出了som测试方法来确保一切正常。JNI与c + +在cout，printf和方法调用中不断崩溃

问题是：当我调用方法测试时，它会给出非常波动的结果。有时它会永远运行，其他时候我会发生构建错误，其他时候我会得到一个致命错误和错误消息。这不仅发生在printf和std :: cout上，而且还有方法调用（然后我总是得到一个致命错误。我有而不是在这个问题中包含了一个例子）。我看不到找到该错误。希望得到一些帮助。

我目前使用g ++作为编译器，并带有其他选项：-D__int64 = int64_t。

Java类：

public class JNI { 
    public static native int test(); 

    public static native int test1(int a); 

    public static void main(String[] args) { 
     String filename = "Path-to-lib\\libProjectJNI.dll"; 
     System.load(filename); 

     //Prints 10 - every time - as expected 
     System.out.println(test1(5)); 

     //Hangs, build fails, or fatal error every time. 
     System.out.println(test()); 
    } 
}

C++类：

#include "JNI.h" 
#include <iostream> 
#include <string> 

JNIEXPORT jint JNICALL Java_project_JNI_test 
(JNIEnv * env, jclass obj) { 
    std::cout << "PRINT THIS"; 
    return 10; 
} 

JNIEXPORT jint JNICALL Java_project_JNI_test1 
(JNIEnv *env, jclass obj, jint aint) { 
    return aint * 2; 
}

C++ H：

/* DO NOT EDIT THIS FILE - it is machine generated */ 
#include <jni.h> 
/* Header for class project_JNI */ 

#ifndef _Included_project_JNI 
#define _Included_project_JNI 
#ifdef __cplusplus 
extern "C" { 
#endif 

    JNIEXPORT jint JNICALL Java_project_JNI_test 
    (JNIEnv *, jclass); 


    JNIEXPORT jint JNICALL Java_project_JNI_test1 
    (JNIEnv *, jclass, jint); 

#ifdef __cplusplus 
} 
#endif 
#endif

生成错误，有些时候会出现：

\nbproject\build-impl.xml:1051: The following error occurred while executing this line: 
\nbproject\build-impl.xml:805: Java returned: -1073741819 
BUILD FAILED (total time: 0 seconds)

hs_err_pid ###登录

# 
# A fatal error has been detected by the Java Runtime Environment: 
# 
# Internal Error (0x20474343), pid=33944, tid=3260 
# 
# JRE version: Java(TM) SE Runtime Environment (8.0_60-b27) (build 1.8.0_60-b27) 
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.60-b23 mixed mode windows-amd64 compressed oops) 
# Problematic frame: 
# C [KERNELBASE.dll+0x71f28] 
# 
# 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 
# The crash happened outside the Java Virtual Machine in native code. 
# See problematic frame for where to report the bug. 
# 

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

Current thread (0x0000000002260800): JavaThread "main" [_thread_in_native, id=3260, stack(0x0000000002110000,0x0000000002210000)] 

siginfo: ExceptionCode=0x20474343, ExceptionInformation=0x0000000600000070 

Registers: 
RAX=0x0000000000000000, RBX=0x0000000600000070, RCX=0x0000000000000000, RDX=0x0000000000000000 
RSP=0x000000000220f460, RBP=0x000000000220f730, RSI=0x00000003fefac4f0, RDI=0x00000006000000b0 
R8 =0x0000000000000000, R9 =0x0000000000000000, R10=0x0000000000000000, R11=0x0000000000000000 
R12=0x0000000000000000, R13=0x000000000000000a, R14=0x000000000220f670, R15=0x00000005696e3030 
RIP=0x00007ffb434f1f28, EFLAGS=0x0000000000000206 

Top of Stack: (sp=0x000000000220f460) 
0x000000000220f460: 00000000ffffffff 0000000600000070 
0x000000000220f470: 00000003fefac4f0 00000006000000b0 
0x000000000220f480: 0000000020474343 0000000000000000 
0x000000000220f490: 00007ffb434f1f28 0000000600000001 
0x000000000220f4a0: 0000000600000070 000000000000000a 
0x000000000220f4b0: 0000000600000300 00000001800ce32c 
0x000000000220f4c0: 00000001801523c1 000000000220f480 
0x000000000220f4d0: 00000003fefbfec0 0000000180156860 
0x000000000220f4e0: 00000006000001e0 0000000000000001 
0x000000000220f4f0: 00000000000000b0 000000000220f730 
0x000000000220f500: 0000000000000000 0000000000000000 
0x000000000220f510: 0000000000000008 00000003ffa4d5ea 
0x000000000220f520: 000077d3bf56b135 00000003fefbfec0 
0x000000000220f530: 000000000220f4e0 00000003ffa4cc97 
0x000000000220f540: 00000006000000b0 00000003fefac4f0 
0x000000000220f550: 00000003fefcbcd0 000000000220f730 

Instructions: (pc=0x00007ffb434f1f28) 
0x00007ffb434f1f08: 49 8b d1 44 0f 47 c0 44 89 44 24 38 49 c1 e0 03 
0x00007ffb434f1f18: e8 27 b2 00 00 48 8d 4c 24 20 ff 15 c8 a7 05 00 
0x00007ffb434f1f28: 48 8b 8c 24 c0 00 00 00 48 33 cc e8 98 7a 00 00 
0x00007ffb434f1f38: 48 81 c4 d8 00 00 00 c3 83 64 24 38 00 eb d6 cc 


Register to memory mapping: 

RAX=0x0000000000000000 is an unknown value 
RBX=0x0000000600000070 is an unknown value 
RCX=0x0000000000000000 is an unknown value 
RDX=0x0000000000000000 is an unknown value 
RSP=0x000000000220f460 is pointing into the stack for thread: 0x0000000002260800 
RBP=0x000000000220f730 is pointing into the stack for thread: 0x0000000002260800 
RSI=0x00000003fefac4f0 is an unknown value 
RDI=0x00000006000000b0 is an unknown value 
R8 =0x0000000000000000 is an unknown value 
R9 =0x0000000000000000 is an unknown value 
R10=0x0000000000000000 is an unknown value 
R11=0x0000000000000000 is an unknown value 
R12=0x0000000000000000 is an unknown value 
R13=0x000000000000000a is an unknown value 
R14=0x000000000220f670 is pointing into the stack for thread: 0x0000000002260800 
R15=0x00000005696e3030 is an unknown value 


Stack: [0x0000000002110000,0x0000000002210000], sp=0x000000000220f460, free space=1021k 
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) 
C [KERNELBASE.dll+0x71f28] 
C [cyggcc_s-seh-1.dll+0xcc97] 
C [cygstdc++-6.dll+0xba6d1] 
C [cygstdc++-6.dll+0xb0a7f] 
C [cygstdc++-6.dll+0xada61] 
C [cygstdc++-6.dll+0xaff59] 
C [cygstdc++-6.dll+0xb4ee7] 
C [libProjectJNI.dll+0x10b3] 
C 0x0000000002375e34 

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) 
j gol.s305089.JNI.test()I+0 
j gol.s305089.JNI.main([Ljava/lang/String;)V+20 
v ~StubRoutines::call_stub 

--------------- P R O C E S S --------------- 

Java Threads: (=> current thread) 
    0x00000000187fc800 JavaThread "Service Thread" daemon [_thread_blocked, id=2792, stack(0x0000000018bd0000,0x0000000018cd0000)] 
    0x0000000016e97000 JavaThread "C1 CompilerThread2" daemon [_thread_blocked, id=35452, stack(0x00000000186d0000,0x00000000187d0000)] 
    0x0000000016e8f800 JavaThread "C2 CompilerThread1" daemon [_thread_blocked, id=15496, stack(0x00000000185d0000,0x00000000186d0000)] 
    0x0000000016e8d800 JavaThread "C2 CompilerThread0" daemon [_thread_blocked, id=17716, stack(0x00000000184d0000,0x00000000185d0000)] 
    0x0000000016e8b000 JavaThread "Attach Listener" daemon [_thread_blocked, id=26948, stack(0x00000000183d0000,0x00000000184d0000)] 
    0x0000000016e89800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=9012, stack(0x00000000182d0000,0x00000000183d0000)] 
    0x0000000002356800 JavaThread "Finalizer" daemon [_thread_blocked, id=24532, stack(0x00000000180e0000,0x00000000181e0000)] 
    0x000000000234d800 JavaThread "Reference Handler" daemon [_thread_blocked, id=35052, stack(0x0000000017fe0000,0x00000000180e0000)] 
=>0x0000000002260800 JavaThread "main" [_thread_in_native, id=3260, stack(0x0000000002110000,0x0000000002210000)] 

Other Threads: 
    0x0000000016e58000 VMThread [stack: 0x0000000017ee0000,0x0000000017fe0000] [id=4028] 
    0x0000000018803000 WatcherThread [stack: 0x0000000018cd0000,0x0000000018dd0000] [id=7356] 

VM state:not at safepoint (normal execution) 

VM Mutex/Monitor currently owned by a thread: None 

Heap: 
PSYoungGen  total 38400K, used 1996K [0x00000000d5f00000, 0x00000000d8980000, 0x0000000100000000) 
    eden space 33280K, 6% used [0x00000000d5f00000,0x00000000d60f33f8,0x00000000d7f80000) 
    from space 5120K, 0% used [0x00000000d8480000,0x00000000d8480000,0x00000000d8980000) 
    to space 5120K, 0% used [0x00000000d7f80000,0x00000000d7f80000,0x00000000d8480000) 
ParOldGen  total 87552K, used 0K [0x0000000081c00000, 0x0000000087180000, 0x00000000d5f00000) 
    object space 87552K, 0% used [0x0000000081c00000,0x0000000081c00000,0x0000000087180000) 
Metaspace  used 2783K, capacity 4486K, committed 4864K, reserved 1056768K 
    class space used 302K, capacity 386K, committed 512K, reserved 1048576K 

Card table byte_map: [0x0000000011720000,0x0000000011b20000] byte_map_base: 0x0000000011312000 

Marking Bits: (ParMarkBitMap*) 0x0000000070aca5b0 
Begin Bits: [0x00000000121d0000, 0x0000000014160000) 
End Bits: [0x0000000014160000, 0x00000000160f0000) 

Polling page: 0x0000000000910000 

CodeCache: size=245760Kb used=1102Kb max_used=1102Kb free=244657Kb 
bounds [0x0000000002360000, 0x00000000025d0000, 0x0000000011360000] 
total_blobs=260 nmethods=26 adapters=148 
compilation: enabled 

Compilation events (10 events): 
Event: 0.079 Thread 0x0000000016e97000 22  3  java.util.jar.Attributes$Name::isAlpha (30 bytes) 
Event: 0.079 Thread 0x0000000016e97000 nmethod 22 0x000000000246fb50 code [0x000000000246fcc0, 0x000000000246fef0] 
Event: 0.080 Thread 0x0000000016e97000 23  3  sun.misc.ASCIICaseInsensitiveComparator::toLower (16 bytes) 
Event: 0.080 Thread 0x0000000016e97000 nmethod 23 0x0000000002472950 code [0x0000000002472ac0, 0x0000000002472d10] 
Event: 0.080 Thread 0x0000000016e97000 24  3  sun.misc.ASCIICaseInsensitiveComparator::isUpper (18 bytes) 
Event: 0.080 Thread 0x0000000016e97000 nmethod 24 0x0000000002472dd0 code [0x0000000002472f20, 0x00000000024730d0] 
Event: 0.080 Thread 0x0000000016e97000 25  3  java.lang.String::getChars (62 bytes) 
Event: 0.081 Thread 0x0000000016e97000 nmethod 25 0x0000000002473150 code [0x0000000002473300, 0x0000000002473738] 
Event: 0.082 Thread 0x0000000016e97000 26  3  java.lang.System::getSecurityManager (4 bytes) 
Event: 0.082 Thread 0x0000000016e97000 nmethod 26 0x0000000002473950 code [0x0000000002473aa0, 0x0000000002473bd0] 

GC Heap History (0 events): 
No events 

Deoptimization events (0 events): 
No events 

Internal exceptions (2 events): 
Event: 0.028 Thread 0x0000000002260800 Exception <a 'java/lang/NoSuchMethodError': Method sun.misc.Unsafe.defineClass(Ljava/lang/String;[BII)Ljava/lang/Class; name or signature does not match> (0x00000000d5f0da00) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u60\4407\hotspot\srÃö×O ? 
Event: 0.028 Thread 0x0000000002260800 Exception <a 'java/lang/NoSuchMethodError': Method sun.misc.Unsafe.prefetchRead(Ljava/lang/Object;J)V name or signature does not match> (0x00000000d5f0dce8) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u60\4407\hotspot\src\share\vm\prims\j 

Events (10 events): 
Event: 0.081 loading class java/security/UnresolvedPermission 
Event: 0.082 loading class java/security/UnresolvedPermission done 
Event: 0.082 loading class java/security/BasicPermissionCollection 
Event: 0.082 loading class java/security/BasicPermissionCollection done 
Event: 0.082 loading class sun/launcher/LauncherHelper$FXHelper 
Event: 0.082 loading class sun/launcher/LauncherHelper$FXHelper done 
Event: 0.082 loading class java/lang/Class$MethodArray 
Event: 0.082 loading class java/lang/Class$MethodArray done 
Event: 0.082 loading class java/lang/Void 
Event: 0.082 loading class java/lang/Void done 


Dynamic libraries: 
0x00007ff69b060000 - 0x00007ff69b097000  C:\Program Files\Java\jdk1.8.0_60\jre\bin\java.exe 
0x00007ffb465f0000 - 0x00007ffb467b1000  C:\WINDOWS\SYSTEM32\ntdll.dll 
0x00007ffb45170000 - 0x00007ffb4521d000  C:\WINDOWS\system32\KERNEL32.DLL 
0x00007ffb43480000 - 0x00007ffb43668000  C:\WINDOWS\system32\KERNELBASE.dll 
0x00007ffb45850000 - 0x00007ffb458f7000  C:\WINDOWS\system32\ADVAPI32.dll 
0x00007ffb452f0000 - 0x00007ffb4538d000  C:\WINDOWS\system32\msvcrt.dll 
0x00007ffb45530000 - 0x00007ffb4558b000  C:\WINDOWS\system32\sechost.dll 
0x00007ffb46020000 - 0x00007ffb4613c000  C:\WINDOWS\system32\RPCRT4.dll 
0x00007ffb45e60000 - 0x00007ffb45fb6000  C:\WINDOWS\system32\USER32.dll 
0x00007ffb45390000 - 0x00007ffb45516000  C:\WINDOWS\system32\GDI32.dll 
0x00007ffb3e860000 - 0x00007ffb3ead4000  C:\WINDOWS\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.10586.0_none_8c15ae12515e1c22\COMCTL32.dll 
0x00007ffb45a20000 - 0x00007ffb45c9d000  C:\WINDOWS\system32\combase.dll 
0x00007ffb43840000 - 0x00007ffb438aa000  C:\WINDOWS\system32\bcryptPrimitives.dll 
0x00007ffb45fe0000 - 0x00007ffb4601b000  C:\WINDOWS\system32\IMM32.DLL 
0x00000000726a0000 - 0x0000000072772000  C:\Program Files\Java\jdk1.8.0_60\jre\bin\msvcr100.dll 
0x00000000702c0000 - 0x0000000070b49000  C:\Program Files\Java\jdk1.8.0_60\jre\bin\server\jvm.dll 
0x00007ffb45520000 - 0x00007ffb45528000  C:\WINDOWS\system32\PSAPI.DLL 
0x00007ffb40550000 - 0x00007ffb40573000  C:\WINDOWS\SYSTEM32\WINMM.dll 
0x00007ffb37a00000 - 0x00007ffb37a09000  C:\WINDOWS\SYSTEM32\WSOCK32.dll 
0x00007ffb412a0000 - 0x00007ffb412aa000  C:\WINDOWS\SYSTEM32\VERSION.dll 
0x00007ffb459b0000 - 0x00007ffb45a1b000  C:\WINDOWS\system32\WS2_32.dll 
0x00007ffb404f0000 - 0x00007ffb4051c000  C:\WINDOWS\SYSTEM32\WINMMBASE.dll 
0x00007ffb42de0000 - 0x00007ffb42e23000  C:\WINDOWS\system32\cfgmgr32.dll 
0x0000000072650000 - 0x000000007265f000  C:\Program Files\Java\jdk1.8.0_60\jre\bin\verify.dll 
0x0000000072620000 - 0x0000000072649000  C:\Program Files\Java\jdk1.8.0_60\jre\bin\java.dll 
0x0000000072600000 - 0x0000000072616000  C:\Program Files\Java\jdk1.8.0_60\jre\bin\zip.dll 
0x00007ffb439f0000 - 0x00007ffb44f4c000  C:\WINDOWS\system32\SHELL32.dll 
0x00007ffb42e30000 - 0x00007ffb43475000  C:\WINDOWS\system32\windows.storage.dll 
0x00007ffb46140000 - 0x00007ffb46192000  C:\WINDOWS\system32\shlwapi.dll 
0x00007ffb42c60000 - 0x00007ffb42c6f000  C:\WINDOWS\system32\kernel.appcore.dll 
0x00007ffb42d20000 - 0x00007ffb42dd5000  C:\WINDOWS\system32\shcore.dll 
0x00007ffb42c10000 - 0x00007ffb42c5b000  C:\WINDOWS\system32\powrprof.dll 
0x00007ffb42c70000 - 0x00007ffb42c84000  C:\WINDOWS\system32\profapi.dll 
0x00000005696e0000 - 0x0000000569704000  C:\Users\active-folder-jni\dist\Debug\Cygwin-Windows\libProjectJNI.dll 
0x0000000180040000 - 0x0000000180640000  C:\cygwin64\bin\cygwin1.dll 
0x00000003fef00000 - 0x00000003ff055000  C:\cygwin64\bin\cygstdc++-6.dll 
0x00000003ffa40000 - 0x00000003ffa5a000  C:\cygwin64\bin\cyggcc_s-seh-1.dll 
0x00007ffb2c030000 - 0x00007ffb2c1bc000  C:\WINDOWS\SYSTEM32\dbghelp.dll 

VM Arguments: 
jvm_args: -Dfile.encoding=UTF-8 
java_command: gol.s305089.JNI 
java_class_path (initial): C:\Users\active-folder-java-src\dist\Project.jar;C:\Program Files\Java\jdk1.8.0_60\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_60\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_60\jre\lib\plugin.jar;C:\Users\active-folder-java-src\build\classes 
Launcher Type: SUN_STANDARD 

Environment Variables: 
PATH=C:\Program Files (x86)\iis express\PHP\v5.3;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files\MATLAB\R2015b\runtime\win64;C:\Program Files\MATLAB\R2015b\bin;C:\Program Files\Git\cmd;C:\Program Files (x86)\MiKTeX 2.9\miktex\bin\;C:\cygwin64\bin;C:\Program Files\Java\jdk1.8.0_60\bin 
USERNAME=myUsername 
OS=Windows_NT 
PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 60 Stepping 3, GenuineIntel 



--------------- S Y S T E M --------------- 

OS: Windows 10.0 , 64 bit Build 10586 (10.0.10586.0) 

CPU:total 4 (2 cores per cpu, 2 threads per core) family 6 model 60 stepping 3, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, avx, avx2, aes, clmul, erms, lzcnt, ht, tsc, tscinvbit, bmi1, bmi2 

Memory: 4k page, physical 8268824k(3297764k free), swap 9579544k(2510856k free) 

vm_info: Java HotSpot(TM) 64-Bit Server VM (25.60-b23) for windows-amd64 JRE (1.8.0_60-b27), built on Aug 4 2015 11:06:27 by "java_re" with MS VC++ 10.0 (VS2010) 

time: Sat Apr 30 21:52:33 2016 
elapsed time: 0 seconds (0d 0h 0m 0s)

来源

2016-04-30 johnk

如果从'Java_project_JNI_test'中删除'std :: cout <<“PRINT THIS”;'行，会发生什么？我从这个问题假设构建中或运行时的错误消失了？ –

是的。如果我删除'std :: cout <<“PRINT THIS”;'该代码每次都能很好地工作。 – johnk

您的问题很可能是标准C++库（因此'std :: cout'）未初始化。我记得很久以前有过类似的问题。如果我没有记错，我解决了它，避免了在启动时需要初始化的C++类。我甚至不得不使用匹配的标准C库版本的匹配Visual C编译器版本来使用标准输出。 – Codo

是不是那么简单，C++一边是给一个8字节整数地址，但Java的思你正在接收的int类型是一个4字节的整数？

Java 8 SDK说明int是32位。 https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html

由于您从C++返回一个（可能是64位）整数，然后Java将它“转换”为32位类型。尝试将Java端的返回类型更改为long，然后查看它是否有效。

public static native long test1(int a);

另外，为什么不尝试以下方法来查看是否可以判断发生碰撞的位置？

long n = test1(5); // get the value into a 64 bit int 
    System.out.format("%d%n", n); // print it separately

来源

2016-04-30 20:12:17 raddevus

test1的返回不是问题。正如我在java代码中所评论的那样，测试1每次都按照预期在屏幕上打印10。另外：C++ int和java int都是32位。源代码形式的JNI 8规范：https：//docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/types.html – johnk

JNI与c + +在cout，printf和方法调用中不断崩溃

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