diff --git a/src/etc/testcases/taskdefs/parallel.xml b/src/etc/testcases/taskdefs/parallel.xml
index 2e3fb7282..2420de7fe 100644
--- a/src/etc/testcases/taskdefs/parallel.xml
+++ b/src/etc/testcases/taskdefs/parallel.xml
@@ -41,36 +41,40 @@
       </sequential>
     </parallel>
     <parallel threadCount='2' pollInterval="30">
-      <!-- expected start 1, end 1, start 2, end 2, start 3, end 3 -->
+      <!-- expected start 1, start 2, end 1, start 3, end 2, end 3 -->
       <sequential>
         <echo message="+1"/>
         <sleep seconds="1"/>
         <echo message="-1"/>
       </sequential>
       <sequential>
+        <sleep milliseconds="200"/>
         <echo message="+2"/>
         <sleep seconds="2"/>
         <echo message="-2"/>
       </sequential>
       <sequential>
+        <sleep milliseconds="300"/>
         <echo message="+3"/>
         <sleep seconds="3"/>
         <echo message="-3"/>
       </sequential>
     </parallel>
     <parallel threadCount='3' pollInterval="30">
-      <!-- expected start 1, start 2, end 1, start 3, end 2, end 3 -->
+      <!-- expected start 1, start 2, start 3, end 1, end 2, end 3 -->
       <sequential>
         <echo message="+1"/>
         <sleep seconds="1"/>
         <echo message="-1"/>
       </sequential>
       <sequential>
+        <sleep milliseconds="200"/>
         <echo message="+2"/>
         <sleep seconds="2"/>
         <echo message="-2"/>
       </sequential>
       <sequential>
+        <sleep milliseconds="300"/>
         <echo message="+3"/>
         <sleep seconds="3"/>
         <echo message="-3"/>
@@ -84,11 +88,13 @@
         <echo message="-1"/>
       </sequential>
       <sequential>
+        <sleep milliseconds="200"/>
         <echo message="+2"/>
         <sleep seconds="2"/>
         <echo message="-2"/>
       </sequential>
       <sequential>
+        <sleep milliseconds="300"/>
         <echo message="+3"/>
         <sleep seconds="3"/>
         <echo message="-3"/>