java解压rar|An unexpected error has been detected by Java Runtime Environment:

[HappyKeKe]

java解压rar文件出错

public void unRarFile(String rarFileName,String extPlace) 
    	{
    		Archive archive = null;
    		File out = null;
    		File file = null;
    		File dir = null;
    		FileOutputStream os = null;
    		FileHeader fh = null;
    		String path, dirPath = "";
    		try 
    		{
    			file = new File(rarFileName);
    			System.out.println("file.getName = "+file.getName());
    			archive = new Archive(file);
    		} 
    		catch (RarException e1) 
    		{
    			e1.printStackTrace();
    		} 
    		catch (IOException e1) 
    		{
    			e1.printStackTrace();
    		} 
    		finally 
    		{
    			if (file != null) 
    			{
    				file = null;
    			}
    		}
    		if (archive != null) 
    		{
    			try 
    			{
    				fh = archive.nextFileHeader();
    				while (fh != null) 
    				{
    					path = (extPlace + fh.getFileNameString().trim()).replaceAll("\\\\", "/");
    					int end = path.lastIndexOf("/");
    					if (end != -1) 
    					{
    						dirPath = path.substring(0, end);
    					}
    					try 
    					{
    						dir = new File(dirPath);
    						if (!dir.exists()) 
    						{
    							dir.mkdirs();
    						}
    					} 
    					catch (RuntimeException e1) 
    					{
    						e1.printStackTrace();
    					} 
    					finally 
    					{
    						if (dir != null) 
    						{
    							dir = null;
    						}
    					}
    					if (fh.isDirectory()) 
    					{
    						fh = archive.nextFileHeader();
    						continue;
    					}
    					
    					out = new File(extPlace + fh.getFileNameString().trim());
    					try 
    					{
    						os = new FileOutputStream(out);
    						archive.extractFile(fh, os);
    					} 
    					catch (FileNotFoundException e) 
    					{
    						e.printStackTrace();
    					} 
    					catch (RarException e) 
    					{
    						e.printStackTrace();
    					} 
    					finally 
    					{
    						if (os != null) 
    						{
    							try 
    							{
    								os.close();
    							} 
    							catch (IOException e) 
    							{
    								e.printStackTrace();
    							}
    						}
    						if (out != null) 
    						{
    							out = null;
    						}
    					}
    					fh = archive.nextFileHeader();
    				}
    			} 
    			catch (RuntimeException e) 
    			{
    				e.printStackTrace();
    			} 
    			finally 
    			{
    				fh = null;
    				if (archive != null) 
    				{
    					try 
    					{
    						archive.close();
    					} catch (IOException e) 
    					{
    						e.printStackTrace();
    					}
    				}
    			}
    		}
    	}	

错误如下

2010-6-16 15:13:56 de.innosystec.unrar.Archive setFile
警告: exception in archive constructor maybe file is encrypted or currupt
java.lang.NullPointerException
	at de.innosystec.unrar.Archive.readHeaders(Archive.java:233)
	at de.innosystec.unrar.Archive.setFile(Archive.java:122)
	at de.innosystec.unrar.Archive.<init>(Archive.java:106)
	at de.innosystec.unrar.Archive.<init>(Archive.java:96)
	at ZipManager.unRarFile(ZipManager.java:371)
	at ZipManager.main(ZipManager.java:490)

调试的时候出现下面这个是什么
[code=Java][
#
# An unexpected error has been detected by Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6da669a2, pid=1752, tid=3944
#
# Java VM: Java HotSpot(TM) Client VM (11.3-b02 mixed mode windows-x86)
# Problematic frame:
# V [jvm.dll+0x1b69a2]
#
# An error report file with more information is saved as:
# E:\exercise\zip\hs_err_pid1752.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#
/code]
先前在别的地方用都好的 不知道什么原因 大侠请帮忙啊

[HappyKeKe]

杯具。。。