SF 1662887 protect Dispatch static methods

unittest/com/jacob/com/DispatchValidDispatchTest.java

@@ -0,0 +1,31 @@
+package com.jacob.com;
+
+/**
+ * Test armoring of dispatch static methods 
+ * May need to run with some command line options (including from inside Eclipse).  
+ * If so, then try these
+ * <pre>
+ *      -Djava.library.path=d:/jacob/release/x86 
+ *      -Dcom.jacob.autogc=false 
+ *      -Dcom.jacob.debug=false 
+ *      -Xcheck:jni
+ *  </pre>
+ */
+public class DispatchValidDispatchTest {
+
+    public static void main(String[] args) 
+    {
+    	try {
+    	Dispatch.call(null, 0);
+    	System.out.println("Failed to throw IllegalArgumentException");
+    	} catch (IllegalArgumentException iae){
+    		System.out.println("Caught correct IllegalArgumentException: "+iae);
+    	}
+    	try {
+    		Dispatch foo = new Dispatch();
+    		Dispatch.call(foo, 0);
+    	} catch (IllegalStateException ise){
+    		System.out.println("Caught correct IllegalStateException "+ise);
+    	}
+    }
+}