Description Philippe Sidler 2005-03-16 05:27:03 EST

My project compiles successfully when the Java compiler property "Unnecessary
cast or 'instanceof' operation" is set to ignore.


After setting this property to warning, Eclipse displays an "AspectJ Error"
message box with the message:

ClassCastException thrown:
org.aspectj.org.eclipse.jdt.internal.compiler.ast.CastExpression$1
Reason:
ClassCastException thrown:
org.aspectj.org.eclipse.jdt.internal.compiler.ast.CastExpression$1


Then in the Problems view, I can see the following error:

Internal compiler error
java.lang.ClassCastException:
org.aspectj.org.eclipse.jdt.internal.compiler.ast.CastExpression$1
	at
org.aspectj.org.eclipse.jdt.internal.compiler.lookup.MethodBinding.getVisibleBinding(MethodBinding.java:141)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.lookup.Scope.getConstructor(Scope.java:1101)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.ast.CastExpression.checkAlternateBinding(CastExpression.java:399)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.ast.CastExpression.checkNeedForArgumentCasts(CastExpression.java:317)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.ast.AllocationExpression.resolveType(AllocationExpression.java:274)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.ast.LocalDeclaration.resolve(LocalDeclaration.java:189)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:385)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:137)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:363)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:933)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:982)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:273)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:544)
	at
org.aspectj.org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:365)
	at
org.aspectj.ajdt.internal.core.builder.AjBuildManager.performCompilation(AjBuildManager.java:682)
	at
org.aspectj.ajdt.internal.core.builder.AjBuildManager.doBuild(AjBuildManager.java:168)
	at
org.aspectj.ajdt.internal.core.builder.AjBuildManager.batchBuild(AjBuildManager.java:102)
	at org.aspectj.ajde.internal.CompilerAdapter.compile(CompilerAdapter.java:122)
	at
org.aspectj.ajde.internal.AspectJBuildManager$CompilerThread.run(AspectJBuildManager.java:165)


I removed code from the class where the internal compiler error occurred while I
still got the error.
The remaining code looked like:

public class MyClass
{
    private GenericPosition position;
    private Object object;

    private void myMethod()
    {
        InstalledObject io = new InstalledObject((SpecificPosition) position,
object);
    }
}

Where:
 - SpecificPosition is a class that implements the interface GenericPosition.
 - The constructor of InstalledObject takes a SpecificPosition as the first
parameter.

I tried to reproduce this issue in a new small project (my project contains more
than 800 classes) without success.