RFR: JDK-8317920: JDWP-agent sends broken exception event with onthrow option

[Johannes Bechberger]

On Wed, 11 Oct 2023 10:44:53 GMT, Johannes Bechberger <jbechberger at openjdk.org> wrote:

> Fix `onthrow` issue by passing the event info to the `initialize` method.
> 
> This prevents `jdb` from receiving a broken exception event and throwing an internal NullPointerException, upon attaching to the JDWP-agent.

Sorry, I forgot to put the NPE somewhere. Here the NPE of JDB:


Exception in thread "event-handler" java.lang.NullPointerException: Cannot invoke "com.sun.jdi.ObjectReference.referenceType()" because the return value of "com.sun.jdi.event.ExceptionEvent.exception()" is null
        at jdk.jdi/com.sun.tools.example.debug.tty.TTY.exceptionEvent(TTY.java:171)
        at jdk.jdi/com.sun.tools.example.debug.tty.EventHandler.exceptionEvent(EventHandler.java:295)
        at jdk.jdi/com.sun.tools.example.debug.tty.EventHandler.handleEvent(EventHandler.java:133)
        at jdk.jdi/com.sun.tools.example.debug.tty.EventHandler.run(EventHandler.java:78)
        at java.base/java.lang.Thread.run(Thread.java:1583)

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PR Comment: https://git.openjdk.org/jdk/pull/16145#issuecomment-1763185158