Problems starting with the BeanBox

Question

Hi all,
I have to create a couple of beans so I start reading a litle bit about it.
Following the Sun J2 book I sart downloading the BDK that includes the BeanBox. When I try to run it I get the following error(see below). Hope somebody can help me.
Cheers,
Bobby.
E:\j2sdk1.4.2\beans\beanbox>run
E:\j2sdk1.4.2\beans\beanbox>if "Windows_NT" == "Windows_NT" setlocal
E:\j2sdk1.4.2\beans\beanbox>set CLASSPATH=classes;..\lib\methodtracer.jar;..\infobus.jar
E:\j2sdk1.4.2\beans\beanbox>java sun.beanbox.BeanBoxFrame
E:\j2sdk1.4.2\beans\jars\buttons.jar: jar load failed: java.lang.Error: java.beans.IntrospectionException
: Method "actionPerformed" should have argument "ActionPerformedEvent"
java.lang.Error: java.beans.IntrospectionException: Method "actionPerformed" should have argument "Action
PerformedEvent"
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)

Answer 1

This problem is explained in the "JavaBeans FAQ: Help with Common Problems" at java.sun.com. Look at http://java.sun.com/products/javabeans/faq/faq.help.html. I have reposted the reply here for your convience.
/Rich\
There were some changes made to the Introspector in order for EventSets created by the Intospector to conform to the JavaBeans specification. See bugs 4402159 and 4407239 for details. Unfortunately, the ExplicitButtonBeanInfo class that shipped with the BDK do not conform to the JavaBeans specification and are rejected. This is not as bad as it seems. Other than the exeption being thrown at startup and the failure to load the buttons.jar file, the rest of the BeanBox will work fine.
As a work around, you may want to go into the sunw.demo.buttons.ExplicitBeanInfo.getEventSetDescriptors() source file, change the first actionPerformed string in the first EventSetDescriptor to be action and recompile the class. The source file for the demo beans used in the BeanBox is in <BDK_INSTALL_DIR>demo\sunw\demo\buttons\ExplicitButtonBeanInfo.java. At around line 47, change:
EventSetDescriptor push = new EventSetDescriptor(beanClass,
"actionPerformed",
java.awt.event.ActionListener.class,
"actionPerformed");
to:
EventSetDescriptor push = new EventSetDescriptor(beanClass,
"action",
java.awt.event.ActionListener.class,
"actionPerformed");