while loading from BinaryFileMap@21fa9669{fo=MultiFileObject@6e8f97e4[Projects/org-netbeans-modules-maven/Lookup/org-netbeans-modules-maven-ProjectOpenedHookImpl.instance]}
Caused: java.lang.AssertionError
   at org.netbeans.modules.maven.ProjectOpenedHookImpl.<init>(ProjectOpenedHookImpl.java:150)
Caused: java.lang.reflect.InvocationTargetException
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(NativeConstructorAccessorImpl.java:0)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
   at org.netbeans.modules.projectapi.LazyLookupProviders.loadPSPInstance(LazyLookupProviders.java:177)
   at org.netbeans.modules.projectapi.LazyLookupProviders.access$000(LazyLookupProviders.java:73)
   at org.netbeans.modules.projectapi.LazyLookupProviders$1$1.beforeLookup(LazyLookupProviders.java:105)
   at org.openide.util.lookup.ProxyLookup.beforeLookup(ProxyLookup.java:209)
   at org.openide.util.lookup.ProxyLookup$R.myBeforeLookup(ProxyLookup.java:652)
   at org.openide.util.lookup.ProxyLookup$R.computeResult(ProxyLookup.java:549)
   at org.openide.util.lookup.ProxyLookup$R.allItems(ProxyLookup.java:533)
   at org.openide.util.lookup.ProxyLookup$R.allItems(ProxyLookup.java:528)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.computeSingleResult(ProxyLookup.java:1277)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.computeDelegate(ProxyLookup.java:1104)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1071)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1054)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.size(ProxyLookup.java:1139)
   at org.openide.util.lookup.ExcludingLookup$R.openCol(ExcludingLookup.java:368)
   at org.openide.util.lookup.ExcludingLookup$R.allItems(ExcludingLookup.java:378)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.computeSingleResult(ProxyLookup.java:1277)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.computeDelegate(ProxyLookup.java:1104)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1071)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1054)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.equals(ProxyLookup.java:1180)
   at org.openide.util.lookup.SimpleProxyLookup$ProxyResult.updateLookup(SimpleProxyLookup.java:249)
   at org.openide.util.lookup.SimpleProxyLookup$ProxyResult.checkResult(SimpleProxyLookup.java:188)
   at org.openide.util.lookup.SimpleProxyLookup$ProxyResult.allInstances(SimpleProxyLookup.java:267)
   at org.openide.util.Lookup.lookupAll(Lookup.java:271)
   at org.netbeans.modules.project.ui.OpenProjectList.notifyOpened(OpenProjectList.java:1296)
   at org.netbeans.modules.project.ui.OpenProjectList.access$1600(OpenProjectList.java:137)
   at org.netbeans.modules.project.ui.OpenProjectList$LoadOpenProjects.loadOnBackground(OpenProjectList.java:516)
   at org.netbeans.modules.project.ui.OpenProjectList$LoadOpenProjects.run(OpenProjectList.java:394)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)