java.lang.ClassNotFoundException: java.lang.NoClassDefFoundError: org/openide/util/NbBundle
        at org.openide.loaders.InstanceSupport.instanceCreate(Unknown Source)
        at org.openide.loaders.InstanceDataObject$Ser.instanceCreate(Unknown Source)
        at org.openide.loaders.InstanceDataObject.instanceCreate(Unknown Source)
        at org.openide.loaders.InstanceDataObject.createNodeDelegateImpl(Unknown Source)
        at org.openide.loaders.InstanceDataObject.createNodeDelegate(Unknown Source)
        at org.openide.loaders.DataObject$1.run(Unknown Source)
        at org.openide.util.Mutex.readAccess(Unknown Source)
        at org.openide.loaders.DataObject.getNodeDelegate(Unknown Source)
        at org.openide.loaders.DataObject.getClonedNodeDelegate(Unknown Source)
        at org.openide.loaders.FolderChildren.createNodes(Unknown Source)
        at org.openide.nodes.Children$Keys$KE.nodes(Unknown Source)
        at org.openide.nodes.ChildrenArray.nodesFor(Unknown Source)
        at org.openide.nodes.Children$Info.nodes(Unknown Source)
        at org.openide.nodes.Children.updateAdd(Unknown Source)
        at org.openide.nodes.Children.setEntries(Unknown Source)
        at org.openide.nodes.Children$3.run(Unknown Source)
        at org.openide.util.Mutex.postRequest(Unknown Source)
        at org.openide.util.Mutex.postWriteRequest(Unknown Source)
        at org.openide.nodes.Children$Keys.applyKeys(Unknown Source)
        at org.openide.nodes.Children$Keys.setKeys(Unknown Source)
        at org.openide.loaders.FolderChildren.access$501(Unknown Source)
        at org.openide.loaders.FolderChildren$Addition.run(Unknown Source)
        at org.openide.util.Task.run(Unknown Source)
        at org.openide.util.RequestProcessor$Processor.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: org/openide/util/NbBundle
        at org.netbeans.lib.ddl.impl.SpecificationFactory.<clinit>(SpecificationFactory.java:69)
        at org.netbeans.modules.db.explorer.nodes.RootNode.<init>(RootNode.java:54)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
        at java.lang.Class.newInstance0(Class.java:306)
        at java.lang.Class.newInstance(Class.java:259)
[catch] ... 24 more
==>
java.lang.NoClassDefFoundError: org/openide/util/NbBundle
        at org.netbeans.lib.ddl.impl.SpecificationFactory.<clinit>(SpecificationFactory.java:69)
        at org.netbeans.modules.db.explorer.nodes.RootNode.<init>(RootNode.java:54)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
        at java.lang.Class.newInstance0(Class.java:306)
        at java.lang.Class.newInstance(Class.java:259)
        at org.openide.loaders.InstanceSupport.instanceCreate(Unknown Source)
        at org.openide.loaders.InstanceDataObject$Ser.instanceCreate(Unknown Source)
[catch] at org.openide.loaders.InstanceDataObject.instanceCreate(Unknown Source)
        at org.openide.loaders.InstanceDataObject.createNodeDelegateImpl(Unknown Source)
        at org.openide.loaders.InstanceDataObject.createNodeDelegate(Unknown Source)
        at org.openide.loaders.DataObject$1.run(Unknown Source)
        at org.openide.util.Mutex.readAccess(Unknown Source)
        at org.openide.loaders.DataObject.getNodeDelegate(Unknown Source)
        at org.openide.loaders.DataObject.getClonedNodeDelegate(Unknown Source)
        at org.openide.loaders.FolderChildren.createNodes(Unknown Source)
        at org.openide.nodes.Children$Keys$KE.nodes(Unknown Source)
        at org.openide.nodes.ChildrenArray.nodesFor(Unknown Source)
        at org.openide.nodes.Children$Info.nodes(Unknown Source)
        at org.openide.nodes.Children.updateAdd(Unknown Source)
        at org.openide.nodes.Children.setEntries(Unknown Source)
        at org.openide.nodes.Children$3.run(Unknown Source)
        at org.openide.util.Mutex.postRequest(Unknown Source)
        at org.openide.util.Mutex.postWriteRequest(Unknown Source)
        at org.openide.nodes.Children$Keys.applyKeys(Unknown Source)
        at org.openide.nodes.Children$Keys.setKeys(Unknown Source)
        at org.openide.loaders.FolderChildren.access$501(Unknown Source)
        at org.openide.loaders.FolderChildren$Addition.run(Unknown Source)
        at org.openide.util.Task.run(Unknown Source)
        at org.openide.util.RequestProcessor$Processor.run(Unknown Source)