[jira] [Updated] (BCEL-289) Crash when parsing constructor of inner classes with parameters annotated

[Bruno P. Kinoshita (JIRA)]

     [ 
https://issues.apache.org/jira/browse/BCEL-289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Bruno P. Kinoshita updated BCEL-289:
------------------------------------
    Description: 
BCEL crashes when parsing the constructor of an inner class whose parameters 
are annotated. For instance, when parsing the jar obtained from the following 
classes:

{code:java}
public @interface A {}
public @interface B {}
public class Test {
    public class Inner {
        public Inner(@A Object a, @B Object b) {}
    }
}
{code}

In particular:

{code:java}
                ClassParser cp = new ClassParser(args[0]);
                ClassGen cg = new ClassGen(cp.parse());
                MethodGen mg = new MethodGen(cg.getMethodAt(0), 
cg.getClassName(), cg.getConstantPool());
                mg.getAnnotationsOnParameter(0);
{code}

(where args\[0\] points to Test$Inner.class)

you get

{noformat}
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2
        at 
org.apache.bcel.generic.MethodGen.ensureExistingParameterAnnotationsUnpacked(MethodGen.java:1120)
        at 
org.apache.bcel.generic.MethodGen.getAnnotationsOnParameter(MethodGen.java:1073)
{noformat}

  was:
BCEL crashes when parsing the constructor of an inner class whose parameters 
are annotated. For instance, when parsing the jar obtained from the following 
classes:

public @interface A {}
public @interface B {}
public class Test {
    public class Inner {
        public Inner(@A Object a, @B Object b) {}
    }
}

In particular:


                ClassParser cp = new ClassParser(args[0]);
                ClassGen cg = new ClassGen(cp.parse());
                MethodGen mg = new MethodGen(cg.getMethodAt(0), 
cg.getClassName(), cg.getConstantPool());
                mg.getAnnotationsOnParameter(0);

(where args[0] points to Test$Inner.class)

you get

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2
        at 
org.apache.bcel.generic.MethodGen.ensureExistingParameterAnnotationsUnpacked(MethodGen.java:1120)
        at 
org.apache.bcel.generic.MethodGen.getAnnotationsOnParameter(MethodGen.java:1073)


> Crash when parsing constructor of inner classes with parameters annotated
> -------------------------------------------------------------------------
>
>                 Key: BCEL-289
>                 URL: https://issues.apache.org/jira/browse/BCEL-289
>             Project: Commons BCEL
>          Issue Type: Bug
>          Components: Parser
>    Affects Versions: 6.0
>            Reporter: Pietro Ferrara
>            Priority: Critical
>             Fix For: 6.1
>
>
> BCEL crashes when parsing the constructor of an inner class whose parameters 
> are annotated. For instance, when parsing the jar obtained from the following 
> classes:
> {code:java}
> public @interface A {}
> public @interface B {}
> public class Test {
>     public class Inner {
>       public Inner(@A Object a, @B Object b) {}
>     }
> }
> {code}
> In particular:
> {code:java}
>               ClassParser cp = new ClassParser(args[0]);
>               ClassGen cg = new ClassGen(cp.parse());
>               MethodGen mg = new MethodGen(cg.getMethodAt(0), 
> cg.getClassName(), cg.getConstantPool());
>               mg.getAnnotationsOnParameter(0);
> {code}
> (where args\[0\] points to Test$Inner.class)
> you get
> {noformat}
> Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2
>       at 
> org.apache.bcel.generic.MethodGen.ensureExistingParameterAnnotationsUnpacked(MethodGen.java:1120)
>       at 
> org.apache.bcel.generic.MethodGen.getAnnotationsOnParameter(MethodGen.java:1073)
> {noformat}



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