Index: compiler/org/eclipse/jdt/internal/compiler/lookup/TypeVariableBinding.java
===================================================================
RCS file: /home/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/lookup/TypeVariableBinding.java,v
retrieving revision 1.43
diff -u -r1.43 TypeVariableBinding.java
--- compiler/org/eclipse/jdt/internal/compiler/lookup/TypeVariableBinding.java	23 Jul 2005 23:55:56 -0000	1.43
+++ compiler/org/eclipse/jdt/internal/compiler/lookup/TypeVariableBinding.java	19 Aug 2005 14:58:56 -0000
@@ -276,9 +276,10 @@
 	public char[] genericSignature() {
 	    StringBuffer sig = new StringBuffer(10);
 	    sig.append(this.sourceName).append(':');
-	   	int interfaceLength = this.superInterfaces.length;
+	   	int interfaceLength = this.superInterfaces == null ? 0 : this.superInterfaces.length;
 	    if (interfaceLength == 0 || this.firstBound == this.superclass) {
-	        sig.append(this.superclass.genericTypeSignature());
+	    	if (this.superclass != null)
+		        sig.append(this.superclass.genericTypeSignature());
 	    }
 		for (int i = 0; i < interfaceLength; i++) {
 		    sig.append(':').append(this.superInterfaces[i].genericTypeSignature());