java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.modules.db.explorer.node.SchemaNode[name=fittest][Name=fittest, displayName=fittest]; it already belongs to node org.netbeans.modules.db.explorer.node.CatalogNode[name=fittest][Name=fittest, displayName=fittest] (did you forgot to use cloneNode?)
Children of new node: null
Children of old node: null
   at org.openide.nodes.Node.assignTo(Node.java:354)
   at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:212)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:130)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:172)
   at org.openide.nodes.Children.getNodes(Children.java:469)
Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.modules.db.explorer.node.SchemaNode[name=fittest][Name=fittest, displayName=fittest]; it already belongs to node org.netbeans.modules.db.explorer.node.CatalogNode[name=fittest][Name=fittest, displayName=fittest] (did you forgot to use cloneNode?)
Children of new node: null
Children of old node: null
   at org.openide.nodes.Node.assignTo(Node.java:354)
   at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:212)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:130)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:172)
   at org.openide.nodes.Children.getNodes(Children.java:469)
Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.modules.db.explorer.node.SchemaNode[name=fittest][Name=fittest, displayName=fittest]; it already belongs to node org.netbeans.modules.db.explorer.node.CatalogNode[name=fittest][Name=fittest, displayName=fittest] (did you forgot to use cloneNode?)
Children of new node: null
Children of old node: null
   at org.openide.nodes.Node.assignTo(Node.java:354)
   at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:212)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:130)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:172)
   at org.openide.nodes.Children.getNodes(Children.java:469)
Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.modules.db.explorer.node.SchemaNode[name=fittest][Name=fittest, displayName=fittest]; it already belongs to node org.netbeans.modules.db.explorer.node.CatalogNode[name=fittest][Name=fittest, displayName=fittest] (did you forgot to use cloneNode?)
Children of new node: null
Children of old node: null
   at org.openide.nodes.Node.assignTo(Node.java:354)
   at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:212)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:130)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:172)
   at org.openide.nodes.Children.getNodes(Children.java:469)
Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.modules.db.explorer.node.SchemaNode[name=fittest][Name=fittest, displayName=fittest]; it already belongs to node org.netbeans.modules.db.explorer.node.CatalogNode[name=fittest][Name=fittest, displayName=fittest] (did you forgot to use cloneNode?)
Children of new node: null
Children of old node: null
   at org.openide.nodes.Node.assignTo(Node.java:354)
   at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:212)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:130)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:172)
   at org.openide.nodes.Children.getNodes(Children.java:469)
Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.modules.db.explorer.node.SchemaNode[name=fittest][Name=fittest, displayName=fittest]; it already belongs to node org.netbeans.modules.db.explorer.node.CatalogNode[name=fittest][Name=fittest, displayName=fittest] (did you forgot to use cloneNode?)
Children of new node: null
Children of old node: null
   at org.openide.nodes.Node.assignTo(Node.java:354)
   at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:212)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:130)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:172)
   at org.openide.nodes.Children.getNodes(Children.java:469)
Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.modules.db.explorer.node.SchemaNode[name=fittest][Name=fittest, displayName=fittest]; it already belongs to node org.netbeans.modules.db.explorer.node.CatalogNode[name=fittest][Name=fittest, displayName=fittest] (did you forgot to use cloneNode?)
Children of new node: null
Children of old node: null
   at org.openide.nodes.Node.assignTo(Node.java:354)
   at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:212)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:130)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:172)
   at org.openide.nodes.Children.getNodes(Children.java:469)
Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.modules.db.explorer.node.SchemaNode[name=fittest][Name=fittest, displayName=fittest]; it already belongs to node org.netbeans.modules.db.explorer.node.CatalogNode[name=fittest][Name=fittest, displayName=fittest] (did you forgot to use cloneNode?)
Children of new node: null
Children of old node: null
   at org.openide.nodes.Node.assignTo(Node.java:354)
   at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:212)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:130)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:172)
   at org.openide.nodes.Children.getNodes(Children.java:469)
Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.modules.db.explorer.node.SchemaNode[name=fittest][Name=fittest, displayName=fittest]; it already belongs to node org.netbeans.modules.db.explorer.node.CatalogNode[name=fittest][Name=fittest, displayName=fittest] (did you forgot to use cloneNode?)
Children of new node: null
Children of old node: null
   at org.openide.nodes.Node.assignTo(Node.java:354)
   at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:212)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:130)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:172)
   at org.openide.nodes.Children.getNodes(Children.java:469)
Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.modules.db.explorer.node.SchemaNode[name=fittest][Name=fittest, displayName=fittest]; it already belongs to node org.netbeans.modules.db.explorer.node.CatalogNode[name=fittest][Name=fittest, displayName=fittest] (did you forgot to use cloneNode?)
Children of new node: null
Children of old node: null
   at org.openide.nodes.Node.assignTo(Node.java:354)
   at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:212)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:130)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:172)
   at org.openide.nodes.Children.getNodes(Children.java:469)
Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.modules.db.explorer.node.SchemaNode[name=fittest][Name=fittest, displayName=fittest]; it already belongs to node org.netbeans.modules.db.explorer.node.CatalogNode[name=fittest][Name=fittest, displayName=fittest] (did you forgot to use cloneNode?)
Children of new node: null
Children of old node: null
   at org.openide.nodes.Node.assignTo(Node.java:354)
   at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:212)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:130)
   at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:172)
   at org.openide.nodes.EntrySupportDefault.getNodesCount(EntrySupportDefault.java:176)
   at org.openide.nodes.Children.getNodesCount(Children.java:509)
   at org.openide.nodes.AsynchChildren.run(AsynchChildren.java:176)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1454)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2036)