--- a/langtools/src/share/classes/com/sun/tools/classfile/Descriptor.java	Tue Jan 20 15:17:45 2009 -0800
+++ b/langtools/src/share/classes/com/sun/tools/classfile/Descriptor.java	Tue Jan 20 18:23:13 2009 -0800
@@ -38,6 +38,7 @@
  */
 public class Descriptor {
     public class InvalidDescriptor extends DescriptorException {
+        private static final long serialVersionUID = 1L;
         InvalidDescriptor(String desc) {
             this.desc = desc;
             this.index = -1;