--- a/hotspot/src/share/vm/prims/jvmtiEnv.cpp	Tue Dec 08 05:50:46 2015 -0800
+++ b/hotspot/src/share/vm/prims/jvmtiEnv.cpp	Tue Dec 08 20:04:03 2015 +0100
@@ -2577,7 +2577,7 @@
     if (!k->is_instance_klass()) {
       return JVMTI_ERROR_ABSENT_INFORMATION;
     }
-    char* sde = InstanceKlass::cast(k)->source_debug_extension();
+    const char* sde = InstanceKlass::cast(k)->source_debug_extension();
     NULL_CHECK(sde, JVMTI_ERROR_ABSENT_INFORMATION);
 
     {