Fix #563

Author: Konloch

src/main/java/the/bytecode/club/bytecodeviewer/gui/components/MethodsRenderer.java

@@ -59,7 +59,9 @@ public Component getListCellRendererComponent(JList<?> list, Object value, int i
         }
 
         MethodParser.Method method = methods.getMethod(methodIndex);
-        setText(method.toString());
+
+        if(method != null)
+            setText(method.toString());
 
         return this;
     }