TypeExtensibility produce non-deterministic results

[florian_kuebler]

For the classes sun.plugin.dom.core.CharacterData and sun.plugin.javascript.navig.URL taken from the JDK 1.8.0_161 the type extensibility results vary between yes and no.

[Michael Reif]

Could you please provide your configuration. (reference.conf - everything under analyses.cg )

[florian_kuebler]

```analyses { cg { ClosedPackagesKey { analysis = "org.opalj.br.analyses.cg.ClosedCodeBase" # considers all packages closed (e.g. suitable when analyzing an application)

      #analysis = "org.opalj.br.analyses.cg.OpenCodeBase" # considers all packages open (e.g. suitable for security analyses)

      #analysis = "org.opalj.br.analyses.cg.ClosedPackagesConfiguration"
      #closedPackages = "java(/.*)*"
      # Use a regular expresion (e.g. "java(/.*)*") to specify all packages
      # that shall be considered closed. In some cases, it might be easier to 
      # specify all open packages. In this case it's possible to invert the
      # specified regular expression (e.g. "^(java(/.*)*)"). The latter example
      # would consider all packages except the java packages as closed.

    }

    ClassExtensibilityKey {
      analysis = "org.opalj.br.analyses.cg.ConfiguredFinalClasses"
      finalClasses = [] # used by org.opalj.br.analyses.cg.ConfiguredFinalClasses
    }
  }
}

}```

[Michael Reif]

Issue fixed with: commit fed812dd0fc0d9159b0b3be5af15873e248841b3 on develop