[anjuta] language-support-cpp-java: Don't unref a NULL-object

[Johannes Schmid <jhs src gnome org>]

commit cd9d0a2035026e3de135bf9cf97f94618efd0908
Author: Johannes Schmid <jhs gnome org>
Date:   Wed May 19 22:18:57 2010 +0200

    language-support-cpp-java: Don't unref a NULL-object

 .../language-support-cpp-java/cpp-java-assist.c    |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/plugins/language-support-cpp-java/cpp-java-assist.c b/plugins/language-support-cpp-java/cpp-java-assist.c
index 96e545b..b0471a5 100644
--- a/plugins/language-support-cpp-java/cpp-java-assist.c
+++ b/plugins/language-support-cpp-java/cpp-java-assist.c
@@ -620,7 +620,8 @@ on_symbol_search_complete (gint search_id, IAnjutaIterable* symbols, CppJavaAssi
 	
 	cpp_java_assist_populate_real (assist, !running);
 	g_list_free (proposals);
-	g_object_unref (symbols);
+	if (symbols)
+		g_object_unref (symbols);
 }
 
 /**
@@ -807,7 +808,8 @@ on_calltip_search_complete (gint search_id, IAnjutaIterable* symbols, CppJavaAss
 		                         assist->priv->calltip_iter,
 		                         NULL);
 	}
-	g_object_unref (symbols);
+	if (symbols)
+		g_object_unref (symbols);
 }
 
 /**