correction for null msg in error handling

BobHanson · BobHanson · commit f01eceab991a · 2020-01-12T19:47:02.000-06:00
diff --git a/sources/net.sf.j2s.java.core/srcjs/js/j2sClazz.js b/sources/net.sf.j2s.java.core/srcjs/js/j2sClazz.js
@@ -217,7 +217,7 @@ Clazz.assert = function(clazz, obj, tf, msg) {
   try {
     ok = tf.apply(obj)
     if (!ok)
-      msg = msg.apply(obj);  
+      msg && (msg = msg.apply(obj));  
   } catch (e) {
     ok = false;
   }

Original file line number	Diff line number	Diff line change
`@@ -217,7 +217,7 @@ Clazz.assert = function(clazz, obj, tf, msg) {`
`217`	`217`	`try {`
`218`	`218`	`ok = tf.apply(obj)`
`219`	`219`	`if (!ok)`
`220`		`- msg = msg.apply(obj);`
	`220`	`+ msg && (msg = msg.apply(obj));`
`221`	`221`	`} catch (e) {`
`222`	`222`	`ok = false;`
`223`	`223`	`}`