When opening a sketch by double-clicking the .pde file, Processing (1.0.3) often throws a "java.lang.NullPointerException" and quits.

In Console.app one can see these messages when this error happens (actually, the "JavaAppLaucher Error" line appears every time Processing is started):

[JavaAppLauncher Error] Non-String for 8 value in 'Properties' sub-dictionary in 'Java' sub-dictionary of Info.plist
[LaunchRunner Error] processing.app.Base.main(String[]) threw an exception:
java.lang.NullPointerException
at ch.randelshofer.quaqua.Quaqua14PopupMenuUI.uninstallListeners(Quaqua14PopupMenuUI.java:95)
at javax.swing.plaf.basic.BasicPopupMenuUI.uninstallUI(BasicPopupMenuUI.java:149)
at javax.swing.JPopupMenu.setInvoker(JPopupMenu.java:911)
at javax.swing.JMenu.ensurePopupMenuCreated(JMenu.java:516)
at javax.swing.JMenu.add(JMenu.java:550)
at processing.app.Base.addSketches(Base.java:1064)
at processing.app.Base.addSketches(Base.java:1072)
at processing.app.Base.addSketches(Base.java:1072)
at processing.app.Base.rebuildExamplesMenu(Base.java:986)
at processing.app.Editor.buildFileMenu(Editor.java:448)
at processing.app.Editor.buildMenuBar(Editor.java:411)
at processing.app.Editor.<init>(Editor.java:161)
at processing.app.Base.handleOpen(Base.java:736)
at processing.app.Base.restoreSketches(Base.java:402)
at processing.app.Base.<init>(Base.java:319)
at processing.app.Base.main(Base.java:236)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at apple.launcher.LaunchRunner.run(LaunchRunner.java:115)
at apple.launcher.LaunchRunner.callMain(LaunchRunner.java:50)
at apple.launcher.JavaApplicationLauncher.launch(JavaApplicationLauncher.java:52)
at apple.launcher.JavaApplicationLauncher.launch(JavaApplicationLauncher.java:52)

is it because multiple versions of processing are on your machine, and
double-clicking a pde file is opening an older release?

I only have Processing 1.0.3 installed. Well, I also have the Arduino IDE,
but I'm sure sketches are opening with Processing, if not only because:

- A processing window with the .pde actually opens, but the exception
dialog offers no other choice but to close the whole app.

k, i'll try to see if i can get this to reproduce on a machine.

it seems to be dying while trying to load the examples, so you might also
check to see if there's a file that's inaccessible in the examples folder.
though if the problem is intermittent, it's likely something else.

Just an update, this is also an issue in the 1.0.4.

Yeah, I've found the problem but haven't been able to fix it yet. I'll mark
the bug as fixed once it's done.

I have a similar (or the same) problem. When i open a sketch, i get this
message:

Uncaught exception in main method: Java.lang.NullPointerException

Typically, on the third try it will open successfully. I'm running 10.5.8
on a quad core.