Index: src/org/apache/taglibs/standard/lang/jstl/ELEvaluator.java
===================================================================
--- src/org/apache/taglibs/standard/lang/jstl/ELEvaluator.java	(revision 578282)
+++ src/org/apache/taglibs/standard/lang/jstl/ELEvaluator.java	(working copy)
@@ -259,7 +259,8 @@
       ELParser parser = new ELParser (r);
       try {
 	ret = parser.ExpressionString ();
-	sCachedExpressionStrings.put (pExpressionString, ret);
+	if (mBypassCache == false) 
+	    sCachedExpressionStrings.put (pExpressionString, ret);
       }
       catch (ParseException exc) {
 	throw new ELException 
@@ -310,17 +311,19 @@
     }
 
     // Find the cached value
-    Map valueByString = getOrCreateExpectedTypeMap (pExpectedType);
-    if (!mBypassCache &&
-	valueByString.containsKey (pValue)) {
-      return valueByString.get (pValue);
+    Map valueByString = null;
+    
+    if (!mBypassCache) {
+        valueByString = getOrCreateExpectedTypeMap (pExpectedType);
+	if (valueByString.containsKey (pValue)) {
+	    return valueByString.get (pValue);
+	}
     }
-    else {
-      // Convert from a String
-      Object ret = Coercions.coerce (pValue, pExpectedType, pLogger);
-      valueByString.put (pValue, ret);
-      return ret;
-    }
+    // Convert from a String
+    Object ret = Coercions.coerce (pValue, pExpectedType, pLogger);
+    if (!mBypassCache) 
+	valueByString.put (pValue, ret);
+    return ret;
   }
 
   //-------------------------------------
Index: src/org/apache/taglibs/standard/lang/jstl/Evaluator.java
===================================================================
--- src/org/apache/taglibs/standard/lang/jstl/Evaluator.java	(revision 578282)
+++ src/org/apache/taglibs/standard/lang/jstl/Evaluator.java	(working copy)
@@ -53,7 +53,7 @@
   /** The singleton instance of the evaluator **/
   static ELEvaluator sEvaluator =
     new ELEvaluator
-    (new JSTLVariableResolver ());
+    (new JSTLVariableResolver (), Boolean.getBoolean("org.apache.taglibs.standard.elevaluator.mBypassCache"));
 
   //-------------------------------------
   // ExpressionEvaluator methods