Use assert taglib in plugin test

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@115600 13f79535-47bb-0310-9956-ffa450edef68

java/src/plugin-test/maven.xml

@@ -16,6 +16,7 @@
  */
  -->
 <project xmlns:util="jelly:util"
+         xmlns:assert="assert"
          xmlns:j="jelly:core">
          
   <goal name="testPlugin" prereqs="test-java-compile">
@@ -25,10 +26,6 @@
   
   <goal name="test-java-compile">
     <attainGoal name="java:compile"/>
-    <j:set var="expectedFile" value="${maven.build.dest}/org/apache/maven/Dummy.class"/>
-    <util:file var="file" name="${expectedFile}" />
-    <j:if test="${!(file.exists())}">
-      <fail>${expectedFile} not generated</fail>
-    </j:if>
+    <assert:assertFileExists file="${maven.build.dest}/org/apache/maven/Dummy.class"/>
   </goal>
 </project>