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When i try to add a JTaskPane in the JTaskPaneContainer, I get this error: java.lang.IllegalArgumentException: Invalid size at org.jdesktop.layout.GroupLayout.checkResizeType(GroupLayout.java:206) at org.jdesktop.layout.GroupLayout.checkSize(GroupLayout.java:192) at org.jdesktop.layout.GroupLayout.access$600(GroupLayout.java:85) at org.jdesktop.layout.GroupLayout$GapSpring.<init>(GroupLayout.java:2279) at org.jdesktop.layout.GroupLayout$ParallelGroup.add(GroupLayout.java:1818) at org.netbeans.modules.form.layoutdesign.support.SwingLayoutBuilder.fillGroup(SwingLayoutBuilder.java:248) at org.netbeans.modules.form.layoutdesign.support.SwingLayoutBuilder.composeGroup(SwingLayoutBuilder.java:172) at org.netbeans.modules.form.layoutdesign.support.SwingLayoutBuilder.createLayout(SwingLayoutBuilder.java:128) at org.netbeans.modules.form.layoutdesign.support.SwingLayoutBuilder.setupContainerLayout(SwingLayoutBuilder.java:80) at org.netbeans.modules.form.VisualReplicator.setupContainerLayout(VisualReplicator.java:740) at org.netbeans.modules.form.VisualReplicator.cloneComponent(VisualReplicator.java:676) at org.netbeans.modules.form.VisualReplicator.createClone(VisualReplicator.java:177) at org.netbeans.modules.form.VisualReplicator.addComponent(VisualReplicator.java:335) at org.netbeans.modules.form.VisualReplicator.updateAddedComponents(VisualReplicator.java:317) at org.netbeans.modules.form.FormDesigner$FormListener.run(FormDesigner.java:1940) at org.netbeans.modules.form.FormLAF$2.run(FormLAF.java:100) at org.openide.util.Mutex.doEventAccess(Mutex.java:1178) at org.openide.util.Mutex.readAccess(Mutex.java:215) at org.netbeans.modules.form.FormLAF.executeWithLookAndFeel(FormLAF.java:82) at org.netbeans.modules.form.FormDesigner$FormListener.processEvents(FormDesigner.java:1872) at org.netbeans.modules.form.FormDesigner$FormListener.formChanged(FormDesigner.java:1842) at org.netbeans.modules.form.FormModel.fireEvents(FormModel.java:967) [catch] at org.netbeans.modules.form.FormModel$EventBroker.run(FormModel.java:1067) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)