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Zest: Use of setUseHashlookup(false) [message #485900]

Tue, 15 September 2009 13:56

Eclipse User

Originally posted by: eclipse.cs-dev.de

I've a problem, in the class AbstractStructuredGraphViewer are HashMaps
used. But my Objects changes his HashCode. After that, i got an exception.

Caused by: java.lang.NullPointerException
at
org.eclipse.zest.core.viewers.internal.AbstractStructuredGra phViewer.inputChanged(AbstractStructuredGraphViewer.java:496 )
at
org.eclipse.jface.viewers.ContentViewer.setInput(ContentView er.java:274)
at
org.eclipse.jface.viewers.StructuredViewer.setInput(Structur edViewer.java:1603)

If i switch the HashMaps to IdentityHashMap no more problem. Is there a
way to implement the method setUseHashlookup(false)?

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