/* frequently used classes ****************************************************/
-/* important system classes */
+/* Important system classes. */
extern classinfo *class_java_lang_Object;
extern classinfo *class_java_lang_Class;
extern classinfo *class_java_lang_Throwable;
extern classinfo *class_java_io_Serializable;
+/* Important system exceptions. */
+
+extern classinfo *class_java_lang_Exception;
+extern classinfo *class_java_lang_ClassNotFoundException;
+extern classinfo *class_java_lang_RuntimeException;
+
#if defined(WITH_CLASSPATH_GNU)
extern classinfo *class_java_lang_VMSystem;
extern classinfo *class_java_lang_VMThread;