$ ls test
Test.class  Test.java

$ cat test/Test.java 
class Test {
    public static void main(String[] a) {
        int x = 5;
        int y = x + 6;
        System.out.println(y);
    }
}

$ java -cp core/build/libs/com.ibm.wala.core-1.6.11-SNAPSHOT.jar:util/build/libs/com.ibm.wala.util-1.6.11-SNAPSHOT.jar:shrike/build/libs/com.ibm.wala.shrike-1.6.11-SNAPSHOT.jar com.ibm.wala.examples.drivers.JavaViewerDriver -appClassPath test
wgot NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@210 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle, make(BLjava/lang/Class;Ljava/lang/invoke/MemberName;Ljava/lang/Class;)Ljava/lang/invoke/DirectMethodHandle; > Context: Everywhere
got NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@210 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle, make(BLjava/lang/Class;Ljava/lang/invoke/MemberName;Ljava/lang/Class;)Ljava/lang/invoke/DirectMethodHandle; > Context: Everywhere
got NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@210 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle, make(BLjava/lang/Class;Ljava/lang/invoke/MemberName;Ljava/lang/Class;)Ljava/lang/invoke/DirectMethodHandle; > Context: Everywhere
got NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@0 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle$StaticAccessor, copyWith(Ljava/lang/invoke/MethodType;Ljava/lang/invoke/LambdaForm;)Ljava/lang/invoke/MethodHandle; > Context: Everywhere
got NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@0 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle$StaticAccessor, copyWith(Ljava/lang/invoke/MethodType;Ljava/lang/invoke/LambdaForm;)Ljava/lang/invoke/MethodHandle; > Context: Everywhere
got NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@0 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle$StaticAccessor, copyWith(Ljava/lang/invoke/MethodType;Ljava/lang/invoke/LambdaForm;)Ljava/lang/invoke/MethodHandle; > Context: Everywhere
got NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@23 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle$StaticAccessor, viewAsType(Ljava/lang/invoke/MethodType;Z)Ljava/lang/invoke/MethodHandle; > Context: Everywhere
got NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@23 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle$StaticAccessor, viewAsType(Ljava/lang/invoke/MethodType;Z)Ljava/lang/invoke/MethodHandle; > Context: Everywhere
got NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@23 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle$StaticAccessor, viewAsType(Ljava/lang/invoke/MethodType;Z)Ljava/lang/invoke/MethodHandle; > Context: Everywhere
Gtk-Message: 11:55:12.440: Failed to load module "canberra-gtk-module"
got NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@210 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle, make(BLjava/lang/Class;Ljava/lang/invoke/MemberName;Ljava/lang/Class;)Ljava/lang/invoke/DirectMethodHandle; > Context: Everywhere
got NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@0 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle$StaticAccessor, copyWith(Ljava/lang/invoke/MethodType;Ljava/lang/invoke/LambdaForm;)Ljava/lang/invoke/MethodHandle; > Context: Everywhere
got NEW <Primordial,Ljava/lang/invoke/DirectMethodHandle$StaticAccessor>@23 in Node: < Primordial, Ljava/lang/invoke/DirectMethodHandle$StaticAccessor, viewAsType(Ljava/lang/invoke/MethodType;Z)Ljava/lang/invoke/MethodHandle; > Context: Everywhere
Exception in thread "main" com.ibm.wala.util.nullability.NullabilityUtil$CastToNonNullFailedException
	at com.ibm.wala.util.nullability.NullabilityUtil.castToNonNull(NullabilityUtil.java:23)
	at com.ibm.wala.util.intset.MutableMapping.getMappedObject(MutableMapping.java:73)
	at com.ibm.wala.core.viz.viewer.PaPanel.mapUsingMutableMapping(PaPanel.java:266)
	at com.ibm.wala.core.viz.viewer.PaPanel.initDataStructures(PaPanel.java:185)
	at com.ibm.wala.core.viz.viewer.PaPanel.<init>(PaPanel.java:77)
	at com.ibm.wala.core.viz.viewer.WalaViewer.createPaPanel(WalaViewer.java:54)
	at com.ibm.wala.core.viz.viewer.WalaViewer.<init>(WalaViewer.java:39)
	at com.ibm.wala.examples.drivers.JavaViewerDriver.run(JavaViewerDriver.java:82)
	at com.ibm.wala.examples.drivers.JavaViewerDriver.main(JavaViewerDriver.java:45)