[jcifs] OutOfMemoryError when writing with SmbFileOutputStream

[Krum Valkov]

Hi,

I managed to reproduce the error with a simple java program without using the
JBoss server. Here is the main method and the whole stack trace. I tryed to
start it few times and the time interval, before the error appears is different,
but it always shows up.

47  public static void main(String[] args)
48      throws IOException
49  {
50      int bufferSize = 1024 * 512;
51      byte[] buffer = new byte[bufferSize];
52      for (int i = 0; i < buffer.length; i++)
53      {
54          buffer[i] = (byte)(i % Byte.MAX_VALUE);
55      }
56      System.out.println("START");
57      NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication(DOMAIN,
USER_NAME, PASSWORD);
58      SmbFile dir = new SmbFile(DIRECTORY, auth);
59      if (!dir.exists())
60      {
61          dir.mkdirs();
62      }
63      SmbFile file = new SmbFile(dir.getPath() + "F" +
System.currentTimeMillis(), auth);
64      if (!file.exists())
65      {
66          file.createNewFile();
67      }
68      System.out.println("SMB file " + file.getPath() + " created!");
69      SmbFileOutputStream out = new SmbFileOutputStream(file);
70      int iterations = 2000;
71      System.out.println("Start writing");
72      long startTime = System.currentTimeMillis();
73      for (int i = 0; i < iterations; i++)
74      {
75          out.write(buffer, 0, buffer.length);
76      }
77      long endTime = System.currentTimeMillis();
78      String writingTime = (endTime - startTime) / 1000 + " seconds and " +
(endTime - startTime) % 1000 + " milliseconds";
79      System.out.println("Writing finished in " + writingTime);
80  }

Exception in thread "main" java.lang.OutOfMemoryError: unable to create new
native thread
	at java.lang.Thread.start0(Native Method)
	at java.lang.Thread.start(Thread.java:597)
	at jcifs.UniAddress.lookupServerOrWorkgroup(UniAddress.java:173)
	at jcifs.UniAddress.getAllByName(UniAddress.java:290)
	at jcifs.UniAddress.getByName(UniAddress.java:245)
	at jcifs.smb.Dfs.getTrustedDomains(Dfs.java:62)
	at jcifs.smb.Dfs.resolve(Dfs.java:146)
	at jcifs.smb.SmbFile.resolveDfs(SmbFile.java:667)
	at jcifs.smb.SmbFile.send(SmbFile.java:730)
	at jcifs.smb.SmbFileOutputStream.writeDirect(SmbFileOutputStream.java:245)
	at jcifs.smb.SmbFileOutputStream.write(SmbFileOutputStream.java:216)
	at com.seeburger.krum.test.TestFileStore.main(TestFileStore.java:75)