If your code is really simple please provide a short example that reproduces the issue and post it here or preferably on Apache JIRA for the NETBEANS project.
--emi http://coolbeans.xyz/ - CoolBeans: An IDE for Java, JavaEE, PHP and more! On Sun, Dec 9, 2018 at 5:11 PM Geertjan Wielenga <geertjan.wiele...@googlemail.com.invalid> wrote: > > Provide a way to reproduce or a simple sample on GitHub etc, thanks. > > Gj > > On Sunday, December 9, 2018, Marc Streckfuß <marc.streckf...@gmail.com> wrote: >> >> Hey Guys, >> >> So this issue is on Netbeans 8.2, I cannot test them with NB 9.0 yet as >> I have other issues preventing an upgrade. >> I am also talking about the Netbeans Platform Facility here, not >> Netbeans itself. >> >> I tried adding Properties Support by adding a Navigator with the Nodes >> API, which works so far (I can see the Nodes in the Navigator panel). >> The Problem is that selecting a Node in the Navigator leads to a >> StackOverflowException because TreeView's Weak PropertyChangeListener >> (that's my finding so far, the debugger only shows that it's a >> WeakListenerImpl) and EMLookup/ProxyLookup hang at ArrayList#addAll() >> because it calls Collection#toArray, which in turn calls addAll at some >> point. >> >> java.lang.StackOverflowError >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.getComputed(ProxyLookup.java:1306) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.computeDelegate(ProxyLookup.java:1116) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1090) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1073) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.size(ProxyLookup.java:1158) >> at >> org.openide.explorer.DefaultEMLookup$NoNodeLookup$ExclusionResult.allItems(DefaultEMLookup.java:254) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.computeSingleResult(ProxyLookup.java:1296) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.computeDelegate(ProxyLookup.java:1123) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1090) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1073) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.toArray(ProxyLookup.java:1179) >> at java.util.ArrayList.addAll(ArrayList.java:581) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.computeDelegate(ProxyLookup.java:1143) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1090) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1073) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.size(ProxyLookup.java:1158) >> at >> org.openide.explorer.DefaultEMLookup$NoNodeLookup$ExclusionResult.allItems(DefaultEMLookup.java:254) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.computeSingleResult(ProxyLookup.java:1296) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.computeDelegate(ProxyLookup.java:1123) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1090) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1073) >> at >> org.openide.util.lookup.ProxyLookup$LazyCollection.toArray(ProxyLookup.java:1179) >> at java.util.ArrayList.addAll(ArrayList.java:581) >> >> With a Breakpoint on addAll I could see that it happens in >> PropertyChangeSupport#fire() with a selectedNodes event. >> Now since my code is really simple (actually only extending AbstractNode >> and using the ChildFactory), I am unsure how to proceed/try to debug. >> >> Also this kind of error has been seen on the issue tracker: >> https://netbeans.org/bugzilla/show_bug.cgi?id=210689 (the exception is >> only different since we have enough RAM) >> Is there a way to find out what the fuzz is about those Lookups? Could >> that be related to my code doing something wrong? or not registering >> something to the lookup? >> Is there a workaround to use the Properties Panel without Nodes? (as >> that's essentially what I need, I already have a graphical >> representation of the contents of the Navigator) >> >> Thanks in Advance, >> Marc Streckfuß >> >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@netbeans.apache.org >> For additional commands, e-mail: users-h...@netbeans.apache.org >> >> For further information about the NetBeans mailing lists, visit: >> https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists >> --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@netbeans.apache.org For additional commands, e-mail: users-h...@netbeans.apache.org For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
