John, I was playing around with JSR-292 and ran into this scenario (based on a sample.)


import java.dyn.*;

public class Test {
    static class Greeter extends JavaMethodHandle {
        private final String greetee;
        public void run() { System.out.println("hello, " + greetee); }
        
        Greeter(String greetee) {
            super(RUN);
            this.greetee = greetee;
        }

        private static final MethodHandle RUN = MethodHandles.lookup().findVirtual(Greeter.class, "run", MethodType.make(void.class));
    }
    
    public static void main(String[] args) {
        Greeter greeter = new Greeter("world");
       
        try {
            greeter.<void>invoke(); // NOTE: subclass of methodHandle.
        } catch(Throwable e) {
            System.out.println("Exception:" + e);
        }
    }
}

An exception has occurred in the compiler (1.7.0-internal). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport) after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report. Thank you.
java.lang.AssertionError
at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1388)
at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1304)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:395)
at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:419)
at com.sun.tools.javac.comp.Attr.visitExec(Attr.java:1120)
at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1150)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:395)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:445)
at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:461)
at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:809)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:773)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:395)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:445)
at com.sun.tools.javac.comp.Attr.visitTry(Attr.java:984)
at com.sun.tools.javac.tree.JCTree$JCTry.accept(JCTree.java:1031)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:395)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:445)
at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:461)
at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:809)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:773)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:395)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:445)
at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:730)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:660)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:395)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:445)
at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:3062)
at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2985)
at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2921)
at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1122)
at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:842)
at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:801)
at com.sun.tools.javac.main.Main.compile(Main.java:409)
at com.sun.tools.javac.main.Main.compile(Main.java:327)
at com.sun.tools.javac.main.Main.compile(Main.java:318)
at com.sun.tools.javac.Main.compile(Main.java:82)
at com.sun.tools.javac.Main.main(Main.java:67)