java.lang.ClassNotFoundException: Log4J is forbidden
   at org.netbeans.modules.j2ee.persistence.util.CustomClassLoader.loadClass(CustomClassLoader.java:128)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
Caused: java.lang.NoClassDefFoundError: org/apache/log4j/Level
   at org.slf4j.impl.StaticLoggerBinder.<init>(StaticLoggerBinder.java:83)
   at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:53)
   at org.slf4j.LoggerFactory.bind(LoggerFactory.java:121)
   at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111)
   at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:268)
   at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:241)
   at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:254)
   at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:197)
   at org.hibernate.ejb.Ejb3Configuration.<clinit>(Ejb3Configuration.java:133)
   at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:55)
   at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)
   at org.netbeans.modules.j2ee.persistence.jpqleditor.JPQLExecutor.execute(JPQLExecutor.java:131)
   at org.netbeans.modules.j2ee.persistence.jpqleditor.ui.JPQLEditorTopComponent$ParseJPQL.run(JPQLEditorTopComponent.java:371)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NoClassDefFoundError: org/apache/log4j/Level
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:435)
   at org.netbeans.modules.j2ee.persistence.jpqleditor.ui.JPQLEditorTopComponent$JPQLDocumentListener.process(JPQLEditorTopComponent.java:466)
   at org.netbeans.modules.j2ee.persistence.jpqleditor.ui.JPQLEditorTopComponent$JPQLDocumentListener.insertUpdate(JPQLEditorTopComponent.java:449)
   at org.netbeans.lib.editor.util.swing.PriorityDocumentListenerList.insertUpdate(PriorityDocumentListenerList.java:85)
   at javax.swing.text.AbstractDocument.fireInsertUpdate(AbstractDocument.java:202)
   at org.netbeans.editor.BaseDocument.fireInsertUpdate(BaseDocument.java:1616)
   at org.netbeans.editor.BaseDocument.handleInsertString(BaseDocument.java:821)
   at org.netbeans.editor.BaseDocument.replace(BaseDocument.java:1037)
   at javax.swing.text.JTextComponent.replaceSelection(JTextComponent.java:1379)
   at javax.swing.JEditorPane.replaceSelection(JEditorPane.java:1163)
   at javax.swing.plaf.basic.BasicTextUI$TextTransferHandler.handleReaderImport(BasicTextUI.java:2354)
   at javax.swing.plaf.basic.BasicTextUI$TextTransferHandler.importData(BasicTextUI.java:2494)
   at javax.swing.TransferHandler.importData(TransferHandler.java:826)
   at javax.swing.plaf.basic.BasicTextUI$TextTransferHandler.importData(BasicTextUI.java:2432)
   at javax.swing.TransferHandler$TransferAction.actionPerformedImpl(TransferHandler.java:1758)
   at javax.swing.TransferHandler$TransferAction.access$700(TransferHandler.java:1684)
   at javax.swing.TransferHandler$TransferAction$1.run(TransferHandler.java:1707)
   at javax.swing.TransferHandler$TransferAction$1.run(TransferHandler.java:1705)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
   at javax.swing.TransferHandler$TransferAction$2.run(TransferHandler.java:1722)
   at javax.swing.TransferHandler$TransferAction$2.run(TransferHandler.java:1720)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at javax.swing.TransferHandler$TransferAction.actionPerformed(TransferHandler.java:1719)
   at javax.swing.text.JTextComponent.invokeAction(JTextComponent.java:1513)
   at javax.swing.text.JTextComponent.paste(JTextComponent.java:1491)
   at org.netbeans.editor.BaseKit$PasteAction$1.run(BaseKit.java:2082)
   at org.netbeans.editor.GuardedDocument.runAtomicAsUser(GuardedDocument.java:347)
   at org.netbeans.editor.BaseKit$PasteAction.actionPerformed(BaseKit.java:2071)
   at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:339)
   at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1664)
   at javax.swing.JComponent.processKeyBinding(JComponent.java:2879)
   at javax.swing.JComponent.processKeyBindings(JComponent.java:2926)
   at javax.swing.JComponent.processKeyEvent(JComponent.java:2842)
   at java.awt.Component.processEvent(Component.java:6282)
   at java.awt.Container.processEvent(Container.java:2229)
   at java.awt.Component.dispatchEventImpl(Component.java:4861)
   at java.awt.Container.dispatchEventImpl(Container.java:2287)
   at java.awt.Component.dispatchEvent(Component.java:4687)
   at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1895)
   at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:762)
   at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1027)
   at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:899)
   at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:727)
   at java.awt.Component.dispatchEventImpl(Component.java:4731)
   at java.awt.Container.dispatchEventImpl(Container.java:2287)
   at java.awt.Window.dispatchEventImpl(Window.java:2719)
   at java.awt.Component.dispatchEvent(Component.java:4687)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:729)
   at java.awt.EventQueue.access$200(EventQueue.java:103)
   at java.awt.EventQueue$3.run(EventQueue.java:688)
   at java.awt.EventQueue$3.run(EventQueue.java:686)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
   at java.awt.EventQueue$4.run(EventQueue.java:702)
   at java.awt.EventQueue$4.run(EventQueue.java:700)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:699)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)