title: Java ShouldNotReachHere error
body: <p>I am trying to change the background color of the source but java gives me internal fatal error occurred message. can you tell me what I am doing wrong. </p>
  
  <pre><code>    import java.awt.*;
      import java.awt.event.*;
      import javax.swing.*;
  
      class ButtonPanel extends JPanel 
      {  
          private JButton yellowButton = new JButton("Yellow");
  
          public ButtonPanel()//constructor
          {  
  
                //setLayout is a method in JPanel that is called in this constructor
                setLayout (new FlowLayout(FlowLayout.LEFT));
                add(yellowButton);
                actions actionsSpecified = new actions();
  
                yellowButton.addActionListener(actionsSpecified);
             }
          }
  
      class actions implements ActionListener
      {
          //actionPerformed is an interface that muse be overriden
          public void actionPerformed(ActionEvent evt)
          {  
              // knows where the event is generated from(from a button, scrollbar etc...)
                JButton source = (JButton) evt.getSource();
  
                Color colorYellow = Color.yellow;
                source.setBackground(colorYellow);
  
             /*Color color = getContentPane().getBackground();
             if (source == yellowButton) 
                color = Color.yellow;
             else if (source == blueButton) 
                color = Color.blue;
             else if (source == redButton) 
                color = Color.red;
             setBackground(color);
             repaint();*/
          }
      }
  
  
      class ButtonFrame extends JFrame
      {  
              public ButtonFrame()
              {  
                  setTitle("ButtonTest");
                  setSize(300, 200);
                  addWindowListener(new WindowAdapter()
                   {  public void windowClosing(WindowEvent e)
                      {  
                       System.exit(0);
                      }
                   } );
  
                Container contentPane = getContentPane();
                contentPane.add(new ButtonPanel());
            }
      }
  
      class ButtonTest
      {  
          public static void main(String[] args)
          {  
              JFrame frame = new ButtonFrame();
              frame.show();  
          }
      }
  </code></pre>
  
  <p>Error message --------------------------------------------</p>
  
  <pre><code>#
  # A fatal error has been detected by the Java Runtime Environment:
  #
  #  Internal Error (classFileParser.cpp:3375), pid=1156, tid=6332
  #  Error: ShouldNotReachHere()
  #
  # JRE version: 6.0_23-b05
  # Java VM: Java HotSpot(TM) 64-Bit Server VM (19.0-b09 mixed mode windows-amd64 compressed oops)
  # An error report file with more information is saved as:
  # C:\Program Files (x86)\eclipse\android-sdk-windows\samples\android-8\Snake\hs_err_pid1156.log
  #
  # If you would like to submit a bug report, please visit:
  #   http://java.sun.com/webapps/bugreport/crash.jsp
  #
  </code></pre>
  
  <p>here is the log -----------------------------------------------------------------</p>
  
  <pre><code>#
  # A fatal error has been detected by the Java Runtime Environment:
  #
  #  Internal Error (classFileParser.cpp:3375), pid=1156, tid=6332
  #  Error: ShouldNotReachHere()
  #
  # JRE version: 6.0_23-b05
  # Java VM: Java HotSpot(TM) 64-Bit Server VM (19.0-b09 mixed mode windows-amd64 compressed oops)
  # If you would like to submit a bug report, please visit:
  #   http://java.sun.com/webapps/bugreport/crash.jsp
  #
  
  ---------------  T H R E A D  ---------------
  
  Current thread (0x00000000005fb800):  JavaThread "Unknown thread" [_thread_in_vm, id=6332, stack(0x0000000002590000,0x0000000002690000)]
  
  Stack: [0x0000000002590000,0x0000000002690000]
  [error occurred during error reporting (printing stack bounds), id 0xc0000005]
  
  
  ---------------  P R O C E S S  ---------------
  
  Java Threads: ( =&gt; current thread )
  
  Other Threads:
  
  =&gt;0x00000000005fb800 (exited) JavaThread "Unknown thread" [_thread_in_vm, id=6332, stack(0x0000000002590000,0x0000000002690000)]
  
  VM state:not at safepoint (not fully initialized)
  
  VM Mutex/Monitor currently owned by a thread: None
  
  Dynamic libraries:
  0x0000000000400000 - 0x000000000042e000     C:\Program Files\Java\jre6\bin\javaw.exe
  0x0000000077850000 - 0x00000000779f9000     C:\Windows\SYSTEM32\ntdll.dll
  0x0000000077420000 - 0x000000007753f000     C:\Windows\system32\kernel32.dll
  0x000007fefe010000 - 0x000007fefe07b000     C:\Windows\system32\KERNELBASE.dll
  0x000007feff600000 - 0x000007feff6db000     C:\Windows\system32\ADVAPI32.dll
  0x000007feffa40000 - 0x000007feffadf000     C:\Windows\system32\msvcrt.dll
  0x000007feff6e0000 - 0x000007feff6ff000     C:\Windows\SYSTEM32\sechost.dll
  0x000007feff2f0000 - 0x000007feff41d000     C:\Windows\system32\RPCRT4.dll
  0x0000000077750000 - 0x000000007784a000     C:\Windows\system32\USER32.dll
  0x000007feff590000 - 0x000007feff5f7000     C:\Windows\system32\GDI32.dll
  0x000007feffa30000 - 0x000007feffa3e000     C:\Windows\system32\LPK.dll
  0x000007feff780000 - 0x000007feff849000     C:\Windows\system32\USP10.dll
  0x000007feff2c0000 - 0x000007feff2ee000     C:\Windows\system32\IMM32.DLL
  0x000007fefe170000 - 0x000007fefe279000     C:\Windows\system32\MSCTF.dll
  0x000007fefdc90000 - 0x000007fefdcaf000     C:\Windows\system32\nvinitx.dll
  0x000000006d7f0000 - 0x000000006dee0000     C:\Program Files\Java\jre6\bin\server\jvm.dll
  0x000007fefb930000 - 0x000007fefb96b000     C:\Windows\system32\WINMM.dll
  0x000000006d760000 - 0x000000006d76e000     C:\Program Files\Java\jre6\bin\verify.dll
  0x000000006d3b0000 - 0x000000006d3d7000     C:\Program Files\Java\jre6\bin\java.dll
  0x000000006d310000 - 0x000000006d31a000     C:\Program Files\Java\jre6\bin\hpi.dll
  0x0000000077a20000 - 0x0000000077a27000     C:\Windows\system32\PSAPI.DLL
  0x000000006d7b0000 - 0x000000006d7c2000     C:\Program Files\Java\jre6\bin\zip.dll
  
  VM Arguments:
  jvm_args: -Dfile.encoding=Cp1252 -Xbootclasspath:C:\Program Files (x86)\eclipse\android-sdk-windows\platforms\android-8\android.jar 
  java_command: dalvik.system.TouchDex
  Launcher Type: SUN_STANDARD
  
  Environment Variables:
  CLASSPATH=.;C:\Program Files (x86)\Java\jre6\lib\ext\QTJava.zip
  PATH=C:/Program Files/Java/jdk1.6.0_23/bin/../jre/bin/server;C:/Program Files/Java/jdk1.6.0_23/bin/../jre/bin;C:/Program Files/Java/jdk1.6.0_23/bin/../jre/lib/amd64;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files\Java\jdk1.6.0_23\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;c:\Program Files\WIDCOMM\Bluetooth Software\;c:\Program Files\WIDCOMM\Bluetooth Software\syswow64;C:\Program Files (x86)\QuickTime\QTSystem\;C:\Program Files (x86)\eclipse;
  USERNAME=
  OS=Windows_NT
  PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 37 Stepping 5, GenuineIntel
  
  
  
  ---------------  S Y S T E M  ---------------
  
  OS: Windows 7 Build 7601 Service Pack 1
  
  CPU:total 4 (2 cores per cpu, 2 threads per core) family 6 model 37 stepping 5, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, ht
  
  Memory: 4k page, physical 3920176k(1115300k free), swap 7838504k(4088064k free)
  
  vm_info: Java HotSpot(TM) 64-Bit Server VM (19.0-b09) for windows-amd64 JRE (1.6.0_23-b05), built on Nov 13 2010 02:43:42 by "java_re" with MS VC++ 8.0 (VS2005)
  
  time: Fri Jun 10 16:11:50 2011
  elapsed time: 0 seconds
  </code></pre>