Добрый день!
Столкнулся с проблемой, с которой не сталкивался никогда. И не могу понять в чем дело. Это обнаружилось тогда когда проект перестал компилироваться - IDEA просто напросто зависала. Методом проб и ошибок удалось выяснить что дело в следующем: для этого написал специальный Test:
| Код |
public class Test {
public static void foo() {
float m=0; // !ОШИБКА!
//float m=1; //все нормально
for(int i=0; i<100; i++) {
m += i;
}
}
public static void main(String[] args) {
}
}
|
так вот, в методе foo() есть место где определяется переменная float m с которой производятся действия в теле цикла. Если начальное значение принять за 1 (отличное от 0 значение - то все нормально), если же начальное значение == 0, то IDEA виснит. Пробовал компилировать из командной строки, вот что выдал компилятор:
jdk1.5.0_05
| Код |
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# EXCEPTION_FLT_DIVIDE_BY_ZERO (0xc000008e) at pc=0x00f3a9f9, pid=1204, tid=1116
#
# Java VM: Java HotSpot(TM) Client VM (1.5.0_05-b05 mixed mode, sharing)
# Problematic frame:
# j com.sun.tools.javac.jvm.Items$ImmediateItem.isPosZero(F)Z+0
#
--------------- T H R E A D ---------------
Current thread (0x00235b00): JavaThread "main" [_thread_in_Java, id=1116]
siginfo: ExceptionCode=0xc000008e, ExceptionInformation=0x00000000
Registers:
EAX=0x00000000, EBX=0x0000006e, ECX=0x00000000, EDX=0x26c13918
ESP=0x0006f600, EBP=0x0006f620, ESI=0x26c11218, EDI=0x0006f62c
EIP=0x00f3a9f9, EFLAGS=0x00010206
Top of Stack: (sp=0x0006f600)
0x0006f600: 3f800000 0006f604 26c11210 0006f62c
0x0006f610: 26c13918 00000000 26c11230 0006f628
0x0006f620: 0006f64c 00f32a7b 00000000 22b0e550
0x0006f630: 0006f630 26c110f9 0006f66c 26c13918
0x0006f640: 00000000 26c111a8 0006f66c 0006f68c
0x0006f650: 00f329fa 00000000 00000000 00000000
0x0006f660: 00000000 00000000 00000000 22b0e550
0x0006f670: 0006f670 26bb45ca 0006f69c 26bbdb60
Instructions: (pc=0x00f3a9f9)
0x00f3a9e9: 00 00 00 6e 00 00 00 d9 04 24 83 c4 04 d8 3c 24
0x00f3a9f9: d9 1c 24 d9 04 24 58 0f b6 5e 01 46 ff 24 9d 18
Stack: [0x00030000,0x00070000), sp=0x0006f600, free space=253k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
j com.sun.tools.javac.jvm.Items$ImmediateItem.isPosZero(F)Z+0
j com.sun.tools.javac.jvm.Items$ImmediateItem.load()Lcom/sun/tools/javac/jvm/Items$Item;+217
j com.sun.tools.javac.jvm.Gen.visitVarDef(Lcom/sun/tools/javac/tree/Tree$VarDef;)V+66
j com.sun.tools.javac.tree.Tree$VarDef.accept(Lcom/sun/tools/javac/tree/Tree$Visitor;)V+2
j com.sun.tools.javac.jvm.Gen.genDef(Lcom/sun/tools/javac/tree/Tree;Lcom/sun/tools/javac/comp/Env;)V+12
j com.sun.tools.javac.jvm.Gen.genStat(Lcom/sun/tools/javac/tree/Tree;Lcom/sun/tools/javac/comp/Env;)V+24
j com.sun.tools.javac.jvm.Gen.genStat(Lcom/sun/tools/javac/tree/Tree;Lcom/sun/tools/javac/comp/Env;I)V+10
j com.sun.tools.javac.jvm.Gen.genStats(Lcom/sun/tools/javac/util/List;Lcom/sun/tools/javac/comp/Env;)V+19
j com.sun.tools.javac.jvm.Gen.visitBlock(Lcom/sun/tools/javac/tree/Tree$Block;)V+31
j com.sun.tools.javac.tree.Tree$Block.accept(Lcom/sun/tools/javac/tree/Tree$Visitor;)V+2
j com.sun.tools.javac.jvm.Gen.genDef(Lcom/sun/tools/javac/tree/Tree;Lcom/sun/tools/javac/comp/Env;)V+12
j com.sun.tools.javac.jvm.Gen.genStat(Lcom/sun/tools/javac/tree/Tree;Lcom/sun/tools/javac/comp/Env;)V+24
j com.sun.tools.javac.jvm.Gen.genMethod(Lcom/sun/tools/javac/tree/Tree$MethodDef;Lcom/sun/tools/javac/comp/Env;Z)V+456
j com.sun.tools.javac.jvm.Gen.visitMethodDef(Lcom/sun/tools/javac/tree/Tree$MethodDef;)V+55
j com.sun.tools.javac.tree.Tree$MethodDef.accept(Lcom/sun/tools/javac/tree/Tree$Visitor;)V+2
j com.sun.tools.javac.jvm.Gen.genDef(Lcom/sun/tools/javac/tree/Tree;Lcom/sun/tools/javac/comp/Env;)V+12
j com.sun.tools.javac.jvm.Gen.genClass(Lcom/sun/tools/javac/comp/Env;Lcom/sun/tools/javac/tree/Tree$ClassDef;)Z+149
j com.sun.tools.javac.main.JavaCompiler.genCode(Lcom/sun/tools/javac/comp/Env;Lcom/sun/tools/javac/tree/Tree$ClassDef;)V+6
j com.sun.tools.javac.main.JavaCompiler.compile(Lcom/sun/tools/javac/util/List;)Lcom/sun/tools/javac/util/List;+795
j com.sun.tools.javac.main.Main.compile([Ljava/lang/String;Lcom/sun/tools/javac/util/Context;)I+350
j com.sun.tools.javac.main.Main.compile([Ljava/lang/String;)I+9
j com.sun.tools.javac.Main.compile([Ljava/lang/String;)I+12
j com.sun.tools.javac.Main.main([Ljava/lang/String;)V+102
v ~StubRoutines::call_stub
V [jvm.dll+0x8295c]
V [jvm.dll+0xd752e]
V [jvm.dll+0x8282d]
V [jvm.dll+0x898ac]
C [javac.exe+0x14d0]
C [javac.exe+0x66dd]
C [KERNEL32.DLL+0x87f5]
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x00ecf600 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=1196]
0x00ece100 JavaThread "CompilerThread0" daemon [_thread_blocked, id=300]
0x00ea8c48 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=308]
0x0023f770 JavaThread "Finalizer" daemon [_thread_blocked, id=960]
0x0023e2a8 JavaThread "Reference Handler" daemon [_thread_blocked, id=1112]
=>0x00235b00 JavaThread "main" [_thread_in_Java, id=1116]
Other Threads:
0x00e99a80 VMThread [id=932]
0x00ed0a08 WatcherThread [id=344]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap
def new generation total 576K, used 380K [0x22ac0000, 0x22b60000, 0x22fa0000)
eden
[error occurred during error reporting, step 190, id 0xc000008e]
Dynamic libraries:
0x00400000 - 0x0040e000 I:\java\jdk1.5.0_05\bin\javac.exe
0x77f80000 - 0x77ffb000 D:\WINNT\system32\ntdll.dll
0x7c2d0000 - 0x7c332000 D:\WINNT\system32\ADVAPI32.dll
0x7c4e0000 - 0x7c599000 D:\WINNT\system32\KERNEL32.DLL
0x77d30000 - 0x77da1000 D:\WINNT\system32\RPCRT4.DLL
0x78000000 - 0x78045000 D:\WINNT\system32\MSVCRT.dll
0x00250000 - 0x002c3000 c:\TEMP\fha1.tmp
0x71780000 - 0x7180a000 D:\WINNT\system32\COMCTL32.DLL
0x77f40000 - 0x77f7c000 D:\WINNT\system32\GDI32.dll
0x77e10000 - 0x77e75000 D:\WINNT\system32\USER32.DLL
0x76620000 - 0x76631000 D:\WINNT\system32\MPR.DLL
0x77a50000 - 0x77b47000 D:\WINNT\system32\OLE32.DLL
0x779b0000 - 0x77a4b000 D:\WINNT\system32\OLEAUT32.DLL
0x75050000 - 0x75058000 D:\WINNT\system32\WSOCK32.DLL
0x75030000 - 0x75044000 D:\WINNT\system32\WS2_32.DLL
0x75020000 - 0x75028000 D:\WINNT\system32\WS2HELP.DLL
0x6d640000 - 0x6d7cc000 I:\java\jdk1.5.0_05\jre\bin\client\jvm.dll
0x77570000 - 0x775a0000 D:\WINNT\system32\WINMM.dll
0x6d280000 - 0x6d288000 I:\java\jdk1.5.0_05\jre\bin\hpi.dll
0x690a0000 - 0x690ab000 D:\WINNT\system32\PSAPI.DLL
0x6d610000 - 0x6d61c000 I:\java\jdk1.5.0_05\jre\bin\verify.dll
0x6d300000 - 0x6d31d000 I:\java\jdk1.5.0_05\jre\bin\java.dll
0x6d630000 - 0x6d63f000 I:\java\jdk1.5.0_05\jre\bin\zip.dll
VM Arguments:
jvm_args: -Dapplication.home=I:\java\jdk1.5.0_05 -Xms8m -Xss4m -ea:com.sun.tools...
java_command: com.sun.tools.javac.Main Test.java
Environment Variables:
PATH=D:\WINNT\system32;D:\WINNT;D:\WINNT\System32\Wbem;\dos\;\dos\drivers\
USERNAME=pav
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 6 Model 10 Stepping 0, AuthenticAMD
--------------- S Y S T E M ---------------
OS: Windows 2000 Build 2195 Service Pack 4
CPU:total 1 family 6, cmov, cx8, fxsr, mmx, sse
Memory: 4k page, physical 523760k(188292k free), swap 1539620k(1222192k free)
vm_info: Java HotSpot(TM) Client VM (1.5.0_05-b05) for windows-x86, built on Aug 26 2005 15:36:02 by "java_re" with MS VC++ 6.0
|
Попробовал другим компилятором jdk1.4.1, выдал следующее:
| Код |
I:\java\jdk1.4.1\bin>javac Test.java
Unexpected Signal : EXCEPTION_FLT_DIVIDE_BY_ZERO occurred at PC=0xE9A626
Function=[Unknown.]
Library=(N/A)
NOTE: We are unable to locate the function name symbol for the error
just occurred. Please refer to release documentation for possible
reason and solutions.
Current Java thread:
Dynamic libraries:
0x00400000 - 0x00408000 I:\java\jdk1.4.1\bin\javac.exe
0x77F80000 - 0x77FFB000 D:\WINNT\system32\ntdll.dll
0x7C2D0000 - 0x7C332000 D:\WINNT\system32\ADVAPI32.dll
0x7C4E0000 - 0x7C599000 D:\WINNT\system32\KERNEL32.DLL
0x77D30000 - 0x77DA1000 D:\WINNT\system32\RPCRT4.DLL
0x78000000 - 0x78045000 D:\WINNT\system32\MSVCRT.dll
0x00250000 - 0x002C3000 c:\TEMP\fha1.tmp
0x71780000 - 0x7180A000 D:\WINNT\system32\COMCTL32.DLL
0x77F40000 - 0x77F7C000 D:\WINNT\system32\GDI32.dll
0x77E10000 - 0x77E75000 D:\WINNT\system32\USER32.DLL
0x76620000 - 0x76631000 D:\WINNT\system32\MPR.DLL
0x77A50000 - 0x77B47000 D:\WINNT\system32\OLE32.DLL
0x779B0000 - 0x77A4B000 D:\WINNT\system32\OLEAUT32.DLL
0x75050000 - 0x75058000 D:\WINNT\system32\WSOCK32.DLL
0x75030000 - 0x75044000 D:\WINNT\system32\WS2_32.DLL
0x75020000 - 0x75028000 D:\WINNT\system32\WS2HELP.DLL
0x6D340000 - 0x6D46A000 I:\java\jdk1.4.1\jre\bin\client\jvm.dll
0x77570000 - 0x775A0000 D:\WINNT\system32\WINMM.dll
0x6D1E0000 - 0x6D1E7000 I:\java\jdk1.4.1\jre\bin\hpi.dll
0x6D310000 - 0x6D31E000 I:\java\jdk1.4.1\jre\bin\verify.dll
0x6D220000 - 0x6D239000 I:\java\jdk1.4.1\jre\bin\java.dll
0x6D330000 - 0x6D33D000 I:\java\jdk1.4.1\jre\bin\zip.dll
0x77920000 - 0x77943000 D:\WINNT\system32\imagehlp.dll
0x72A00000 - 0x72A2D000 D:\WINNT\system32\DBGHELP.dll
0x690A0000 - 0x690AB000 D:\WINNT\system32\PSAPI.DLL
Local Time = Thu Dec 08 01:36:00 2005
****************
Another exception has been detected while we were handling last error.
Dumping information about last error:
ERROR REPORT FILE = (N/A)
PC = 0x00E9A626
SIGNAL = -1073741682
FUNCTION NAME = (N/A)
OFFSET = 0xFFFFFFFF
LIBRARY NAME = (N/A)
Please check ERROR REPORT FILE for further information, if there is any.
Good bye.
|
работаю на OS Windows 2000 + SP4 (english)
Пожалуйста, объясните что это могло быть? Может вирус какой у меня на компьютере? Другого объяснения я не нахожу... |
