[jira] Created: (BEEHIVE-889) controls annotation processor needs to safely handle a missing -classpath option

["Eddie O'Neil (JIRA)" <be...@incubator.apache.org>]

controls annotation processor needs to safely handle a missing -classpath option
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         Key: BEEHIVE-889
         URL: http://issues.apache.org/jira/browse/BEEHIVE-889
     Project: Beehive
        Type: Bug
  Components: Controls  
    Versions: TBD    
    Reporter: Eddie O'Neil
    Priority: Minor
     Fix For: TBD


When the controls annotation processing class AptControlInterface attempts to resolve types during checking, it expects to find a value for the "-classpath" environment variable.  If this value is missing, the AptControlInterface class NPEs at the stack trace below because null is returned for the URLClassLoader.  

This should either throw an exception to stop annotation processing or log a warning and continue annotation processing.  Kyle / Ken, any thoughts there?

Stack trace:
java.lang.NullPointerException
[java]     at org.apache.beehive.controls.runtime.generator.AptControlInterface.check(AptControlInterface.java:949)
[java]     at org.apache.beehive.controls.runtime.generator.AptControlInterface.<init>(AptControlInterface.java:121)
[java]     at org.apache.beehive.controls.runtime.generator.apt.ControlAnnotationProcessor.check(ControlAnnotationProcessor.java:56)
[java]     at org.apache.beehive.controls.runtime.generator.apt.TwoPhaseAnnotationProcessor.check(TwoPhaseAnnotationProcessor.java:104)
[java]     at org.apache.beehive.controls.runtime.generator.apt.TwoPhaseAnnotationProcessor.process(TwoPhaseAnnotationProcessor.java:86) 

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