Make sure GwtIncompatibleStripperCommandLineRunner is public
@@ -23,7 +23,7 @@ import org.kohsuke.args4j.Argument;
import org.kohsuke.args4j.Option;
/** A javac-like command line driver for @GwtIncompatible stripper. */
-final class GwtIncompatibleStripperCommandLineRunner extends CommandLineTool {
+public final class GwtIncompatibleStripperCommandLineRunner extends CommandLineTool {
@Argument(metaVar = "<source files .java|.srcjar>", usage = "source files")
protected List<String> files = new ArrayList<>();
