FULL PRODUCT VERSION :
java version " 1.7.0_25 "
Java(TM) SE Runtime Environment (build 1.7.0_25-b15)
Java HotSpot(TM) Server VM (build 23.25-b01, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Linux pc002 3.7.10-1.16-desktop #1 SMP PREEMPT Fri May 31 20:21:23 UTC 2013 (97c14ba) i686 athlon i386 GNU/Linux

Windows XP, Windows 7

A DESCRIPTION OF THE PROBLEM :
SwingUtilities.invokeLater(Runnable r) throws NullPointerexception and SiwngUtilities.isEventDispatchThread() throws NPE too. That is because sun.awt.AppContext is null for some threads like thread created by RMI pool .

It was working correctly on all previous JRE releases and JRE 1.7.0 Update 21, but I don't have such choice in the comboBox.

REGRESSION. Last worked in version 5.0

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Build a RIA application that acts as a RMI server application (beside being a RMI client).
1.1. Export some RMI Object with a method.
2. Implement the method and use a SwingUtilities.invokeLater(..) within.
3. Start the application with Java Web Start.
4. Call the RMI Object with the method.
5. JWS application will throw NullPointerException.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Normal functioning without throwing the exception. The same application executed without JWS work correctly.
ACTUAL -
-----------------
Jun 25, 2013 1:55:47 PM AppletView$8 setBaseUnits
INFO: AppContexts: [sun.awt.AppContext[threadGroup=main], sun.awt.AppContext[threadGroup=javawsApplicationThreadGroup], sun.awt.AppContext[threadGroup=javawsSecurityThreadGroup]]
Jun 25, 2013 1:55:47 PM AppletView$8 setBaseUnits
INFO: before invokeLater
Exception in thread " AWT-EventQueue-2 " java.lang.NullPointerException
at sun.awt.SunToolkit.getSystemEventQueueImplPP(SunToolkit.java:1011)
at sun.awt.SunToolkit.getSystemEventQueueImplPP(SunToolkit.java:1007)
at sun.awt.SunToolkit.getSystemEventQueueImpl(SunToolkit.java:1002)
at java.awt.Toolkit.getEventQueue(Toolkit.java:1730)
at java.awt.EventQueue.invokeLater(EventQueue.java:1217)
at javax.swing.SwingUtilities.invokeLater(SwingUtilities.java:1290)
at AppletView$8.setBaseUnits(AppletView.java:560)
-------------------------------


ERROR MESSAGES/STACK TRACES THAT OCCUR :
http://stackoverflow.com/questions/17223304/appcontext-is-null-from-rmi-thread-with-java-7-update-25?lq=1

http://stackoverflow.com/questions/17275259/nullpointerexception-in-invokelater-while-running-through-java-webstart

https://forums.oracle.com/message/11080621

https://forums.oracle.com/thread/2552799

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
I am trying to write something brief. When I have some code I will attach it here by BugID or If I will attach it to the post in: (in case I will not have access to attach the test case).

http://stackoverflow.com/questions/17275259/nullpointerexception-in-invokelater-while-running-through-java-webstart
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
The application need to save the current AppContext in EVT:

  AppContext evtContext; //field

  SwingUtilities.invokeLater(new Runnable() {
      public void run() {
          evtContext = AppContext.getAppContext();
      }
  });

Then all the calls to SwingUtilities.invokeLater(..) from RMI threads must be replaced with custom invokeLater2(Runnable rn) method that uses sun.awt.SunToolkit.invokeLaterOnAppContext(..,..) like:

void invokeLater2(Runnable rn) {
    if (AppContext.getAppContext() == null) {
        logger.warning( " AppContext is null, using EVT AppContext "
          + " through SunToolKit " );
        sun.awt.SunToolkit.invokeLaterOnAppContext(evtContext, rn);
    } else {
        SwingUtilities.invokeLater(rn);
    }
}

Unfortunately all the calls to SwingUtilities.invokeLater(..) from RMI threads must be replaced and the program now depends on internal Sun/Oracle JRE API.