diff --git a/build.xml b/build.xml
index 7ddc86b..3c537e9 100644
--- a/build.xml
+++ b/build.xml
@@ -80,9 +80,6 @@
 
   <!-- Construct compile classpath -->
   <path id="site2.classpath">
-    <fileset dir="${jakarta-site2}/lib">
-      <include name="*.jar"/>
-    </fileset>
   </path>
 
 
@@ -119,7 +116,7 @@
 
 
   <target name="jmxCheck">
-    <available classname="javax.management.MBeanInfo" property="jmx-present">
+    <available classname="invalid.Class" property="jmx-present">
       <classpath>
 	<pathelement location="${jmx.jar}"/>
       </classpath>
@@ -185,7 +182,8 @@
                	    ${stem}/jmx/*.java,
                	    ${stem}/or/jms/*.java"
   	    deprecation="${deprecation}"
-	    debug="on">
+	    debug="on"
+           target="1.4">
       <classpath refid="compile.classpath"/>
     </javac>
     
@@ -206,7 +204,8 @@
 	   classpath="${classpath}"
 	   excludes="misc/*"
 	   deprecation="${deprecation}"
-           debug="on"/>
+           debug="on"
+           target="1.4"/>
     <rmic base="${javac.dest}"
       classname="examples.NumberCruncherServer"
       />
@@ -225,7 +224,8 @@
            excludes="${stem}/xml/examples/doc-files/**.java,
 	             ${stem}/xml/Transform.java"
 	   deprecation="${deprecation}"
-	   classpath="${classpath}">
+	   classpath="${classpath}"
+           target="1.4">
       <classpath refid="compile.classpath"/>
     </javac>
     <copy file="${BSTEM}/xml/log4j.dtd"
@@ -237,7 +237,8 @@
     <javac srcdir="${java.source.dir}"
 	   destdir="${javac.dest}"
 	   deprecation="${deprecation}"
-	   includes="${stem}/net/SMTPAppender.java">
+	   includes="${stem}/net/SMTPAppender.java"
+           target="1.4">
       <classpath refid="compile.classpath"/>
     </javac>
   </target>
@@ -246,7 +247,8 @@
     <javac deprecation="${deprecation}"
            srcdir="${java.source.dir}"
 	   destdir="${javac.dest}"
-	   includes="${stem}/net/JMS*.java">
+	   includes="${stem}/net/JMS*.java"
+           target="1.4">
       <classpath refid="compile.classpath"/>
     </javac>
   </target>
@@ -256,7 +258,8 @@
            srcdir="${java.source.dir}"
 	   destdir="${javac.dest}"
 	   includes="${stem}/jmx/*.java"
-           excludes="${stem}/jmx/T.java">
+           excludes="${stem}/jmx/T.java"
+           target="1.4">
       <classpath refid="compile.classpath"/>
     </javac>
   </target>