[armedbear-devel] Registering Java Exceptions

[Alessio Stalla]

Hi,

to follow up on the issue: Erik pointed me to the source of the
problem (that he also documented as ticket #123 [1]). It was caused by
breakage in one Java implementation of subclassp, probably left over
by the reimplementation of java-class in Lisp. I fixed it by reusing
the (amended) generic implementation in the LispClass.subclassp static
method. In the process I also fixed register-java-exception to signal
meaningful errors if you feed it an object that does not name a class.
This is available on trunk as revision 13221 [2]. Please check if your
code now works.

Best regards,
Alessio

[1] http://trac.common-lisp.net/armedbear/ticket/123
[2] http://trac.common-lisp.net/armedbear/changeset/13221

On Thu, Jan 20, 2011 at 6:12 PM, William <will.wadsworth.10 at gmail.com> wrote:
> Hi,
>
> I am trying to register Java exceptions using REGISTER-JAVA-EXCEPTION but it
> does not seem to work for me as evidenced by the transcript below.
>
> Is there anything that I may have missed?
>
>
> Armed Bear Common Lisp 0.23.1
> Java 1.6.0_20 Sun Microsystems Inc.
> Java HotSpot(TM) 64-Bit Server VM
> Low-level initialization completed in 0.354 seconds.
> Startup completed in 1.579 seconds.
> Type ":help" for a list of available commands.
> CL-USER(1): (define-condition java-illegal-argument-error (java-exception) ())
> JAVA-ILLEGAL-ARGUMENT-ERROR
> CL-USER(2): (register-java-exception "java.lang.IllegalArgumentException"
> 'java-illegal-argument-error)
> NIL
> CL-USER(3): (ignore-errors (jstatic (jmethod "java.lang.String" "valueOf" "int")
> "java.lang.String" "12"))
> NIL
> #<JAVA-EXCEPTION {4A6F19D5}>
> CL-USER(4): (jstatic (jmethod "java.lang.String" "valueOf" "int")
> "java.lang.String" "12")
> #<THREAD "interpreter" {2690ED81}>: Debugger invoked on condition of type
> JAVA-EXCEPTION
>  #<JAVA-EXCEPTION {74D8C3EE}>
> Restarts:
>  0: TOP-LEVEL Return to top level.
> [1] CL-USER(5): 0
> CL-USER(6):
>
>
>
>
> Kind regards,
> Martin.
>
>
>
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