diff --git a/modules/core/String.js b/modules/core/String.js
index 9ff823de..1f6aed17 100644
--- a/modules/core/String.js
+++ b/modules/core/String.js
@@ -545,17 +545,6 @@ String.prototype.diff = function(mod, separator) {
 };
 
 
-/**
- * remove leading and trailing whitespace
- * @external
- * @memberof {String}
- */
-String.prototype.trim = function () {
-    var s = new java.lang.String(this);
-    return String(s.trim());
-};
-
-
 /**
  * returns true if the string looks like an e-mail
  * @external