Name: wm7046 Date: 07/11/2002


FULL PRODUCT VERSION :
C:\weblogic\dev\sandbox\txie\ZipBug>java -version
java version "1.3.1_04"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_04-b02)
Java HotSpot(TM) Client VM (build 1.3.1_04-b02, mixed mode)

C:\weblogic\dev\sandbox\txie\ZipBug>java -version
java version "1.3.1_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_03-b03)
Java HotSpot(TM) Client VM (build 1.3.1_03-b03, mixed mode)



FULL OPERATING SYSTEM VERSION :
Windows XP, Windows 2000

EXTRA RELEVANT SYSTEM CONFIGURATION :
JDK 1.3.1_03, JDK 1.3.1_04

A DESCRIPTION OF THE PROBLEM :
A simple test case to reproduce the Violation. One is
around 5 times it gives an access_violation

C:\weblogic\dev\sandbox\txie\ZipBug>java -classpath .
ZipBug jmx.zip

java.lang.IllegalStateException: zip file closed
        at java.util.zip.ZipFile.getEntry(ZipFile.java:136)
        at ZipBug.readEntry(ZipBug.java:57)
        at ZipBug.run(ZipBug.java:44)
An unexpected exception has been detected in native code
outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at
PC=0x6d3c7a3f
Function name=ZIP_GetNextEntry
Library=c:\java\java131\jre\bin\zip.dll

Current Java thread:
        at java.util.zip.ZipFile.freeEntry(Native Method)
        at java.util.zip.ZipFile.getEntry(ZipFile.java:146)
        at ZipBug.readEntry(ZipBug.java:57)
        at ZipBug.run(ZipBug.java:44)

Dynamic libraries:
0x00400000 - 0x00405000 c:\java\java131\bin\java.exe
0x77F50000 - 0x77FF9000 C:\WINNT\System32\ntdll.dll
0x77E60000 - 0x77F45000 C:\WINNT\system32
\kernel32.dll
0x77DD0000 - 0x77E5B000 C:\WINNT\system32
\ADVAPI32.dll
0x77CC0000 - 0x77D35000 C:\WINNT\system32\RPCRT4.dll
0x77C10000 - 0x77C63000 C:\WINNT\system32\MSVCRT.dll
0x6D420000 - 0x6D4F0000 c:\java\java131
\jre\bin\hotspot\jvm.dll
0x77D40000 - 0x77DCD000 C:\WINNT\system32\USER32.dll
0x77C70000 - 0x77CB0000 C:\WINNT\system32\GDI32.dll
0x76B40000 - 0x76B6C000 C:\WINNT\System32\WINMM.dll
0x76390000 - 0x763AA000 C:\WINNT\System32\IMM32.DLL
0x629C0000 - 0x629C8000 C:\WINNT\System32\LPK.DLL
0x72FA0000 - 0x72FFA000 C:\WINNT\System32\USP10.dll
0x10000000 - 0x10019000 C:\WINNT\System32
\NVDESK32.DLL
0x6D220000 - 0x6D227000 c:\java\java131
\jre\bin\hpi.dll
0x6D3B0000 - 0x6D3BD000 c:\java\java131
\jre\bin\verify.dll
0x6D250000 - 0x6D266000 c:\java\java131
\jre\bin\java.dll
0x6D3C0000 - 0x6D3CD000 c:\java\java131
\jre\bin\zip.dll
0x76C90000 - 0x76CB2000 C:\WINNT\system32
\imagehlp.dll
0x6D510000 - 0x6D58C000 C:\WINNT\system32
\DBGHELP.dll
0x77C00000 - 0x77C07000 C:\WINNT\system32
\VERSION.dll
0x76BF0000 - 0x76BFB000 C:\WINNT\System32\PSAPI.DLL

Local Time = Thu Jul 11 14:43:24 2002
Elapsed Time = 0
#
# The exception above was detected in native code outside
the VM
#
# Java VM: Java HotSpot(TM) Client VM (1.3.1_03-b03 mixed
mode)
#
# An error report file has been saved as hs_err_pid3040.log.
# Please refer to the file for further information.
#

C:\weblogic\dev\sandbox\txie\ZipBug>java -version
java version "1.3.1_03"
Java(TM) 2 Runtime Environment, Standard Edition (build
1.3.1_03-b03)
Java HotSpot(TM) Client VM (build 1.3.1_03-b03, mixed mode)

OR it hangs the command window with message,
C:\weblogic\dev\sandbox\txie\ZipBug>java -classpath .
ZipBug jmx.zip



****************
Another exception has been detected while we were handling
last error.
Dumping information about last error:
ERROR REPORT FILE = (N/A)
PC = 0x6D3C7A3F
SIGNAL = -1073741819
FUNCTION NAME = (N/A)
LIBRARY NAME = (N/A)
Please check ERROR REPORT FILE for further information, if
there is any.
Good bye.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. compile the test case enclosed,
2. java -classpath . ZipBug <zip file>


ERROR MESSAGES/STACK TRACES THAT OCCUR :
A simple test case to reproduce the Violation. One is around 5 times it gives
an access_violation

C:\weblogic\dev\sandbox\txie\ZipBug>java -classpath . ZipBug jmx.zip

java.lang.IllegalStateException: zip file closed
        at java.util.zip.ZipFile.getEntry(ZipFile.java:136)
        at ZipBug.readEntry(ZipBug.java:57)
        at ZipBug.run(ZipBug.java:44)
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x6d3c7a3f
Function name=ZIP_GetNextEntry
Library=c:\java\java131\jre\bin\zip.dll

Current Java thread:
        at java.util.zip.ZipFile.freeEntry(Native Method)
        at java.util.zip.ZipFile.getEntry(ZipFile.java:146)
        at ZipBug.readEntry(ZipBug.java:57)
        at ZipBug.run(ZipBug.java:44)

Dynamic libraries:
0x00400000 - 0x00405000 c:\java\java131\bin\java.exe
0x77F50000 - 0x77FF9000 C:\WINNT\System32\ntdll.dll
0x77E60000 - 0x77F45000 C:\WINNT\system32\kernel32.dll
0x77DD0000 - 0x77E5B000 C:\WINNT\system32\ADVAPI32.dll
0x77CC0000 - 0x77D35000 C:\WINNT\system32\RPCRT4.dll
0x77C10000 - 0x77C63000 C:\WINNT\system32\MSVCRT.dll
0x6D420000 - 0x6D4F0000 c:\java\java131\jre\bin\hotspot\jvm.dll
0x77D40000 - 0x77DCD000 C:\WINNT\system32\USER32.dll
0x77C70000 - 0x77CB0000 C:\WINNT\system32\GDI32.dll
0x76B40000 - 0x76B6C000 C:\WINNT\System32\WINMM.dll
0x76390000 - 0x763AA000 C:\WINNT\System32\IMM32.DLL
0x629C0000 - 0x629C8000 C:\WINNT\System32\LPK.DLL
0x72FA0000 - 0x72FFA000 C:\WINNT\System32\USP10.dll
0x10000000 - 0x10019000 C:\WINNT\System32\NVDESK32.DLL
0x6D220000 - 0x6D227000 c:\java\java131\jre\bin\hpi.dll
0x6D3B0000 - 0x6D3BD000 c:\java\java131\jre\bin\verify.dll
0x6D250000 - 0x6D266000 c:\java\java131\jre\bin\java.dll
0x6D3C0000 - 0x6D3CD000 c:\java\java131\jre\bin\zip.dll
0x76C90000 - 0x76CB2000 C:\WINNT\system32\imagehlp.dll
0x6D510000 - 0x6D58C000 C:\WINNT\system32\DBGHELP.dll
0x77C00000 - 0x77C07000 C:\WINNT\system32\VERSION.dll
0x76BF0000 - 0x76BFB000 C:\WINNT\System32\PSAPI.DLL

Local Time = Thu Jul 11 14:43:24 2002
Elapsed Time = 0
#
# The exception above was detected in native code outside the VM
#
# Java VM: Java HotSpot(TM) Client VM (1.3.1_03-b03 mixed mode)
#
# An error report file has been saved as hs_err_pid3040.log.
# Please refer to the file for further information.
#

C:\weblogic\dev\sandbox\txie\ZipBug>java -version
java version "1.3.1_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_03-b03)
Java HotSpot(TM) Client VM (build 1.3.1_03-b03, mixed mode)

OR it hangs the command window with message,
C:\weblogic\dev\sandbox\txie\ZipBug>java -classpath . ZipBug jmx.zip



****************
Another exception has been detected while we were handling last error.
Dumping information about last error:
ERROR REPORT FILE = (N/A)
PC = 0x6D3C7A3F
SIGNAL = -1073741819
FUNCTION NAME = (N/A)
LIBRARY NAME = (N/A)
Please check ERROR REPORT FILE for further information, if there is any.
Good bye.


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.zip.*;
import java.util.Enumeration;
import java.io.IOException;
import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;

/**
 * Simple class to reproduce the EXCEPTION_ACCESS_VIOLATION in ZipFile.
 * It shows the scenario where a zipFile is closed in another thread
 * while the current thread is calling getEntry()
 *
 * Usage : java ZipBug zipFile
 * (1 in 5 times we see the following exception)
 *
 * causing :
 * 1) An unexpected exception has been detected in native code outside the VM.
 * Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x6d3c7a3f
 * Function name=ZIP_GetNextEntry
 * Library=c:\java\java131_03\jre\bin\zip.dll
 *
 **/
public class ZipBug extends Thread{
  
  static final int READ = 0;
  
  static final int CLOSE = 1;
  
  private int mode;

  private ZipFile zipFile ;

  private List entryList;

  public ZipBug(int mode, ZipFile zip, List list) {
    this.mode = mode;
    this.zipFile = zip;
    this.entryList = list;
  }

  public void run() {
    try {
      if (mode == READ) {
        readEntry();
      } else {
        closeZip();
      }
    } catch (IOException ioe) {
      ioe.printStackTrace();
    }
  }

  private void readEntry() {

    Iterator i = entryList.iterator();
    while (i.hasNext()) {
      ZipEntry ze = zipFile.getEntry((String)i.next());
    }
  }

  private void closeZip() throws IOException {
    String name = zipFile.getName();
    if (zipFile != null)
      zipFile.close();
    zipFile = new ZipFile(name);
  }



  public static void main(String[] args) throws Exception {
    if (args.length == 0) {
      System.out.println("Usage: java ZipBug zipFile");
      return;
    }
    
    String zipName = args[0];

    ZipFile zipFile = new ZipFile(zipName);

    Enumeration enum = zipFile.entries();
    List list = new ArrayList();
    while (enum.hasMoreElements()) {
      ZipEntry ze = (ZipEntry) enum.nextElement();
      list.add(ze.getName());
    }
    
    ZipBug zb = new ZipBug(READ, zipFile, list);
    ZipBug zb1 = new ZipBug(READ, zipFile, list);
    
    ZipBug zc = new ZipBug(CLOSE, zipFile, list);
    ZipBug zc1 = new ZipBug(CLOSE, zipFile, list);
    ZipBug zc2 = new ZipBug(CLOSE, zipFile, list);
    
    zb.start();
    zb1.start();

    zc.start();
    zc1.start();
    zc2.start();

  }

}






---------- END SOURCE ----------
(Review ID: 159257)
======================================================================