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Index › Programming Questions & Help › Syntax Questions › runtime access error - caused by scope resolution
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runtime access error - caused by scope resolution? (Read 559 times)
timmeh
runtime access error - caused by scope resolution?
Apr 25th, 2009, 11:06pm  
hi guys,
i'm new to processing and java(but a fairly experienced programmer) and am having a bit of an issue with not being able to access class members.

The error I'm getting is -
Code:
	at sun.reflect.Reflection.ensureMemberAccess(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at processing.core.PApplet$RegisteredMethods.handle(PApplet.java:724)
	at processing.core.PApplet$RegisteredMethods.handle(PApplet.java:717)
	at processing.core.PApplet.handleDraw(PApplet.java:1437)
	at processing.core.PApplet.run(PApplet.java:1328)
	at java.lang.Thread.run(Unknown Source)
java.lang.IllegalAccessException: Class processing.core.PApplet$RegisteredMethods can not access a member of class balls$Trigger with modifiers "public"


Now this only started occuring when I went from explicitly keeping a list of all the objects with a call method and calling it myself to using PApplet::registerDraw(), so I'm wondering if this is a problem with scope resolution perhaps, since I'm not explicitly keeping track of the objects (I assumed setting the callback would mean there was a reference and thus it would not be garbage collected).

I've uploaded a zip of my sketch so you can see the code - hiddenworlds.org/temp/balls.zip

Anyone have any insights?

Also is there a doxygen listing for the processing api? something that shows me all the members of PApplet as well?.

thanks
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PhiLho 
Re: runtime access error - caused by scope resolution?
Reply #1 - Apr 26th, 2009, 1:55am  
timmeh wrote on Apr 25th, 2009, 11:06pm:
Also is there a doxygen listing for the processing api something that shows me all the members of PApplet as well.

Not Doxygen (alas) but the venerable JavaDoc: Developer's Reference, see Core one.

I didn't know registerDraw(), and the above mentioned doc is silent about it, but a quick search shown registerDraw() article. Looks useful...

I haven't looked at the source (showing it in plain text is more handy...), but you must ensure the methods Processing must access are public.
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