Multicatch: assertion error while generating LocalVariableTypeTable attribute

A regression test in our hudson build is failing with the following message:

    [jtreg] reason: User specified action: run compile Pos08.java
    [jtreg] elapsed time (seconds): 0.054
    [jtreg] direct:
    [jtreg] 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.
    [jtreg] java.lang.AssertionError: Unexpected intersection type: java.lang.Exception&Pos08.Foo
    [jtreg] at com.sun.tools.javac.jvm.ClassWriter.enterInner(ClassWriter.java:997)
    [jtreg] at com.sun.tools.javac.jvm.ClassWriter.assembleClassSig(ClassWriter.java:374)
    [jtreg] at com.sun.tools.javac.jvm.ClassWriter.assembleSig(ClassWriter.java:302)
    [jtreg] at com.sun.tools.javac.jvm.ClassWriter.typeSig(ClassWriter.java:426)
    [jtreg] at com.sun.tools.javac.jvm.ClassWriter.writeCode(ClassWriter.java:1195)
    [jtreg] at com.sun.tools.javac.jvm.ClassWriter.writeMethod(ClassWriter.java:1087)
    [jtreg] at com.sun.tools.javac.jvm.ClassWriter.writeMethods(ClassWriter.java:1563)
    [jtreg] at com.sun.tools.javac.jvm.ClassWriter.writeClassFile(ClassWriter.java:1644)
    [jtreg] at com.sun.tools.javac.jvm.ClassWriter.writeClass(ClassWriter.java:1581)
    [jtreg] at com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:695)
    [jtreg] at com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1424)
    [jtreg] at com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1392)
    [jtreg] at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:847)
    [jtreg] at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:806)
    [jtreg] at com.sun.tools.javac.main.Main.compile(Main.java:418)
    [jtreg] at com.sun.tools.javac.main.Main.compile(Main.java:336)
    [jtreg] at com.sun.tools.javac.main.Main.compile(Main.java:327)
    [jtreg] at com.sun.tools.javac.Main.compile(Main.java:100)
    [jtreg] at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
    [jtreg] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [jtreg] at java.lang.reflect.Method.invoke(Method.java:613)
    [jtreg] at com.sun.javatest.lib.JavaCompileCommand.run(JavaCompileCommand.java:243)
    [jtreg] at com.sun.javatest.regtest.CompileAction.runCompile(CompileAction.java:554)
    [jtreg] at com.sun.javatest.regtest.CompileAction.runSameJVM(CompileAction.java:402)
    [jtreg] at com.sun.javatest.regtest.CompileAction.run(CompileAction.java:264)