[jira] [Created] (FELIX-3887) ClassCastException during resolution of Require-Bundle: system.bundle

["Neil Bartlett (JIRA)" <ji...@apache.org>]

Neil Bartlett created FELIX-3887:
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             Summary: ClassCastException during resolution of Require-Bundle: system.bundle
                 Key: FELIX-3887
                 URL: https://issues.apache.org/jira/browse/FELIX-3887
             Project: Felix
          Issue Type: Bug
          Components: Framework
    Affects Versions: framework-4.0.3
         Environment: java version "1.7.0_03" OpenJDK Runtime Environment (IcedTea7 2.1.1pre) (7~u3-2.1.1~pre1-1ubuntu2)
OpenJDK Client VM (build 22.0-b10, mixed mode, sharing)

DOES NOT affect Java 1.6

            Reporter: Neil Bartlett
            Priority: Critical


During resolution the following exception is seen:

java.lang.ClassCastException: [Ljava.lang.String; cannot be cast to java.lang.Comparable
java.lang.ClassCastException: [Ljava.lang.String; cannot be cast to java.lang.Comparable
        at org.apache.felix.framework.resolver.CandidateComparator.compare(CandidateComparato
r.java:50)
        at org.apache.felix.framework.resolver.CandidateComparator.compare(CandidateComparato
r.java:28)
        at java.util.TreeMap.compare(TreeMap.java:1188)
        at java.util.TreeMap.put(TreeMap.java:531)
        at java.util.TreeSet.add(TreeSet.java:255)
        at org.apache.felix.framework.StatefulResolver$ResolverStateImpl.getCandidates(Statef
ulResolver.java:1309)
        at org.apache.felix.framework.resolver.Candidates.populateRevision(Candidates.java:27
5)
        at org.apache.felix.framework.resolver.Candidates.populate(Candidates.java:158)
        at org.apache.felix.framework.resolver.ResolverImpl.resolve(ResolverImpl.java:89)
        at org.apache.felix.framework.StatefulResolver.resolve(StatefulResolver.java:168)
        at org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:3819)
        at org.apache.felix.framework.Felix.startBundle(Felix.java:1868)
        at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:944)
        at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:931)

This occurs when resolving a bundle that has "Require-Bundle: system.bundle". By debugging the framework, I see that the osgi.wiring.bundle attribute of the osgi.wiring.bundle capability of the System Bundle has a value which is a String array: "[org.apache.felix.framework, system.bundle]". The cast on line 50 of CandidateComparable is therefore invalid in this one particular case.

On Java 1.6 this line of code is never reached; I'm not yet sure why.

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