ENDBLK block throws nullpointer exception when double-clicking on it
Reported by Alexandre HERISSE
Originally assigned to Alexandre HERISSE
Bug description:
When dragging ENDBLK block, user wants to modify the simulation end time by accesing block parameters(double-clicking). No windows is shown and an exception is thrown.
Error log:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at java.util.ArrayList.<init>(ArrayList.java:131)
at org.scilab.modules.xcos.block.BasicBlock.sort(BasicBlock.java:225)
at org.scilab.modules.xcos.block.BasicBlock.openBlockSettings(BasicBlock.java:1297)
at org.scilab.modules.xcos.graph.swing.handler.GraphHandler.openBlock(GraphHandler.java:214)
at org.scilab.modules.xcos.graph.swing.handler.GraphHandler.mouseClicked(GraphHandler.java:100)
at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:253)
at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
at java.awt.Component.processMouseEvent(Component.java:6300)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3275)
at java.awt.Component.processEvent(Component.java:6062)
at java.awt.Container.processEvent(Container.java:2039)
at java.awt.Component.dispatchEventImpl(Component.java:4660)
at java.awt.Container.dispatchEventImpl(Container.java:2097)
at java.awt.Component.dispatchEvent(Component.java:4488)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4575)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4245)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4166)
at java.awt.Container.dispatchEventImpl(Container.java:2083)
at java.awt.Window.dispatchEventImpl(Window.java:2489)
at java.awt.Component.dispatchEvent(Component.java:4488)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:668)
at java.awt.EventQueue.access$400(EventQueue.java:81)
at java.awt.EventQueue$2.run(EventQueue.java:627)
at java.awt.EventQueue$2.run(EventQueue.java:625)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
at java.awt.EventQueue$3.run(EventQueue.java:641)
at java.awt.EventQueue$3.run(EventQueue.java:639)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:638)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
How to reproduce the bug:
- open Xcos
- drag the block ENDBLK to a diagram
- double-clik on that block
--> bug
Other information: