diff --git a/releng.wtpbuilder/distribution/wtp.tests/build.xml b/releng.wtpbuilder/distribution/wtp.tests/build.xml
index 45eb0ba232e5266c48d16f5e0299034915a8b34c..25e79e8d2e35bd398cf15d677909a0909e5fce8b 100644
--- a/releng.wtpbuilder/distribution/wtp.tests/build.xml
+++ b/releng.wtpbuilder/distribution/wtp.tests/build.xml
@@ -308,6 +308,10 @@
                 value="-DbuildLabel=${buildLabel}"/>
             <jvmarg
                 value="-Dplugin-path=${plugin-path}"/>
+            <!-- JIT work arounds for bug 284441 -->    
+            <env 
+                 name="IBM_JAVA_OPTIONS" 
+                 value="-Xjit:exclude={org/eclipse/jst/jsp/core/internal/parser/internal/JSPTokenizer.primGetNextToken()Ljava/lang/String;},exclude={org/eclipse/jst/jsp/core/internal/parser/internal/JSPTokenizer.%lt;init%gt;(Ljava/io/Reader;)V},exclude={org/eclipse/wst/html/core/internal/contenttype/HTMLHeadTokenizer.primGetNextToken()Ljava/lang/String;}" />   
         </java>
         <echo
             message="wtpmasterjunitresult ${wtpmasterjunitresult}"/>