re PR libgcj/26103 (Wrong exception thrown)

	PR libgcj/26103:
	* java/lang/ClassLoader.java (loadClass): Don't throw
	StringIndexOutOfBoundsException if name is empty.
	* java/lang/natClassLoader.cc (loadClassFromSig): Throw exception
	if class not found.

From-SVN: r111820

libjava/ChangeLog

+2006-03-07  Tom Tromey  <tromey@redhat.com>
+
+	PR libgcj/26103:
+	* java/lang/ClassLoader.java (loadClass): Don't throw
+	StringIndexOutOfBoundsException if name is empty.
+	* java/lang/natClassLoader.cc (loadClassFromSig): Throw exception
+	if class not found.
+
 2006-03-07  David Daney  <ddaney@avtrex.com>
 
 	* include/java-interp.h: Removed extern "C" around #include <ffi.h>.

libjava/java/lang/ClassLoader.java

 /* ClassLoader.java -- responsible for loading classes into the VM
-   Copyright (C) 1998, 1999, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -288,7 +288,7 @@ public abstract class ClassLoader
   {
     // Arrays are handled specially.
     Class c;
-    if (name.charAt(0) == '[')
+    if (name.length() > 0 && name.charAt(0) == '[')
       c = loadClassFromSig(name);
     else
       {

libjava/java/lang/natClassLoader.cc

@@ -81,7 +81,10 @@ java::lang::ClassLoader::loadClassFromSig(jstring name)
   int len = _Jv_GetStringUTFLength (name);
   char sig[len + 1];
   _Jv_GetStringUTFRegion (name, 0, name->length(), sig);
-  return _Jv_FindClassFromSignature(sig, this);
+  jclass result = _Jv_FindClassFromSignature(sig, this);
+  if (result == NULL)
+    throw new ClassNotFoundException(name);
+  return result;
 }