re PR libgcj/35979 (JNI method NewStringUTF throws NPE when passed a NULL pointer)

	PR libgcj/35979:
	* jni.cc (_Jv_JNI_NewStringUTF): Return NULL if bytes==NULL.

From-SVN: r134471

libjava/ChangeLog

+2008-04-19  Tom Tromey  <tromey@redhat.com>
+
+	PR libgcj/35979:
+	* jni.cc (_Jv_JNI_NewStringUTF): Return NULL if bytes==NULL.
+
 2008-04-18  Paolo Bonzini  <bonzini@gnu.org>
 
 	PR bootstrap/35457

libjava/jni.cc

 // jni.cc - JNI implementation, including the jump table.
 
-/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
    Free Software Foundation
 
    This file is part of libgcj.
@@ -1332,6 +1332,9 @@ _Jv_JNI_NewStringUTF (JNIEnv *env, const char *bytes)
 {
   try
     {
+      // For compatibility with the JDK.
+      if (!bytes)
+	return NULL;
       jstring result = JvNewStringUTF (bytes);
       return (jstring) wrap_value (env, result);
     }