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Race condition? java.lang.ArrayIndexOutOfBoundsException: 4 at org.openide.util.lookup.ProxyLookup$R.lookupChange(ProxyLookup.java:396) at org.openide.util.lookup.ProxyLookup.setLookups(ProxyLookup.java:187) at org.netbeans.core.startup.MainLookup.moduleClassLoadersUp(MainLookup.java:117) at org.netbeans.core.startup.MainLookup.systemClassLoaderChanged(MainLookup.java:105) at org.netbeans.core.startup.NbInstaller.load(NbInstaller.java:253) [....]
Hardly race condition. The code is synchronized. More likely re-entrant access.
Jardo, I believe this is duplicate of what you already fixed, isn't it right?
*** This issue has been marked as a duplicate of 123679 ***