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Product Version = NetBeans IDE Dev (Build 201403030001) Operating System = Linux version 3.11.0-17-generic running on amd64 Java; VM; Vendor = 1.7.0_51 Runtime = OpenJDK 64-Bit Server VM 24.45-b08 problem as Summary said. and the Terminal Icon is added from Customize toolbar. but still, the action from Menu's Terminal is OK, just open one tab.
Created attachment 145826 [details] IDE log
> WARNING [org.openide.util.WeakListenerImpl]: Can't remove > java.beans.PropertyChangeListener using method > org.netbeans.modules.terminal.ioprovider.TerminalInputOutput.removePropertyChangeListener > from org.netbeans.modules.terminal.ioprovider.TerminalInputOutput@3c4f2e72 from log is quite unexpected, but I don't think it could lead to such problems as terminal duplicating. What does the tooltip of Terminal icon from Customize toolbar says? "Create New Local Terminal Tab"?