java.lang.NullPointerException: peer
at sun.awt.windows.WInputMethod.openCandidateWindow(N ative Method)
at sun.awt.windows.WInputMethod.access$400(WInputMeth od.java:45)
at sun.awt.windows.WInputMethod$1.run(WInputMethod.ja va:599)
at java.awt.event.InvocationEvent.dispatch(Invocation Event.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.j ava:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessI mpl.doIntersectionPrivilege(ProtectionDomain.java: 80)
at java.security.ProtectionDomain$JavaSecurityAccessI mpl.doIntersectionPrivilege(ProtectionDomain.java: 90)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessI mpl.doIntersectionPrivilege(ProtectionDomain.java: 80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java: 728)
at org.netbeans.core.TimableEventQueue.dispatchEvent( TimableEventQueue.java:159)
[catch] at java.awt.EventDispatchThread.pumpOneEventForFilter s(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(E ventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarch y(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThre ad.java:82)

Ya he agotado todas las soluciones comunes y todavía no puedo solucionarlo.

Saludos