title: Output from jstack missing tid and nid information
body: <p>I have a Linux box with nearly maxed out CPU utilization.  I used <code>top</code> to track down the offending Java process (12462) and underlying threads (12465 and 12466).  I was hoping to run <code>jstack</code> and search in the output for 30b1 and 30b2 (the aforementioned threads converted to hex) so I could figure out what Java is doing.</p>
  
  <p>When I ran <code>jstack</code> without any flags, it returned the following error:</p>
  
  <pre><code>12462: Unable to open socket file: target process not responding or HotSpot VM not loaded
  The -F option can be used when the target process is not responding
  </code></pre>
  
  <p>However, when I ran <code>jstack -F</code> the output didn't contain tid or nid information.  Here's an excerpt from the output:</p>
  
  <pre><code>Thread 31374: (state = IN_NATIVE)
   - java.net.SocketInputStream.socketRead0(java.io.FileDescriptor, byte[], int, int, int) @bci=0 (Compiled frame; information may be imprecise)
   - java.net.SocketInputStream.read(byte[], int, int, int) @bci=79, line=150 (Compiled frame)
   - java.net.SocketInputStream.read(byte[], int, int) @bci=11, line=121 (Compiled frame)
   - org.apache.coyote.http11.InternalInputBuffer.fill(boolean) @bci=59, line=516 (Compiled frame)
   - org.apache.coyote.http11.InternalInputBuffer.fill() @bci=2, line=501 (Compiled frame)
   - org.apache.coyote.http11.Http11Processor.setRequestLineReadTimeout() @bci=90, line=173 (Compiled frame)
   - org.apache.coyote.http11.AbstractHttp11Processor.process(org.apache.tomcat.util.net.SocketWrapper) @bci=156, line=925 (Compiled frame)
   - org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(org.apache.tomcat.util.net.SocketWrapper, org.apache.tomcat.util.net.SocketStatus) @bci=149, line=585 (Compiled frame)
   - org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run() @bci=130, line=312 (Compiled frame)
   - java.util.concurrent.ThreadPoolExecutor.runWorker(java.util.concurrent.ThreadPoolExecutor$Worker) @bci=95, line=1145 (Compiled frame)
   - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=5, line=615 (Interpreted frame)
   - java.lang.Thread.run() @bci=11, line=722 (Interpreted frame)
  </code></pre>
  
  <p>I ran <code>jstack -F -l</code> but the command seemed to lock up.</p>
  
  <p>When I ran <code>jstack -F -m</code>, I was able to find the decimal threads but the output didn't contain enough of the actual Java stack for me to figure out what it's doing.  Here's another portion of the output:</p>
  
  <pre><code>----------------- 12465 -----------------
  0x0000003e54889dd0      _wordcopy_fwd_aligned + 0x140
  </code></pre>
  
  <p>What am I missing?  How can I get <code>jstack</code> to show me the tid and nid?</p>