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java.lang.Error: java.beans.IntrospectionException: Method "actionPerformed" should have argument "ActionPerformedEvent" at sunw.demo.buttons.ExplicitButtonBeanInfo.getEventSetDescriptors(ExplicitButtonBeanInfo.java:60) at java.beans.Introspector.getTargetEventInfo(Unknown Source) at java.beans.Introspector.getBeanInfo(Unknown Source) at java.beans.Introspector.getBeanInfo(Unknown Source) at sun.beanbox.JarInfo.<init>(JarInfo.java:66) at sun.beanbox.JarLoader.createJarInfo(JarLoader.java:292) at sun.beanbox.JarLoader.loadJar(JarLoader.java:197) at sun.beanbox.JarLoader.loadJarDoOnBean(JarLoader.java:207) at sun.beanbox.ToolBoxPanel.addBeansInJar(ToolBox.java:175) at sun.beanbox.ToolBoxPanel.<init>(ToolBox.java:105) at sun.beanbox.ToolBoxScrollPane.<init>(ToolBox.java:69) at sun.beanbox.ToolBox.<init>(ToolBox.java:28) at sun.beanbox.BeanBoxFrame.<init>(BeanBoxFrame.java:124) at sun.beanbox.BeanBoxFrame.main(BeanBoxFrame.java:91)