diff -Naur ../bsf-2.3.0.orig/src/bsf/build.xml ./src/bsf/build.xml
--- ../bsf-2.3.0.orig/src/bsf/build.xml	2002-11-13 07:28:54.000000000 +0100
+++ ./src/bsf/build.xml	2006-09-25 14:25:56.000000000 +0200
@@ -208,7 +208,8 @@
       </fileset>
     </copy>
 
-    <javac srcdir="${src.dir}" destdir="${build.dest}" debug="${debug}">
+    <javac srcdir="${src.dir}" destdir="${build.dest}" debug="${debug}"
+           source="1.4" target="1.4">
       <patternset refid="javac.source.files"/>
       <classpath location="${bsf.extraclasspath}"/>
     </javac>
@@ -250,19 +251,19 @@
     <javac srcdir="${build.samples.calc}"
            destdir="${build.samples.calc}"
            classpath="${build.lib}/${name}.jar"
-           debug="${debug}"/>
+           debug="${debug}" source="1.4" target="1.4"/>
     <javac srcdir="${build.samples.jsplike}"
            destdir="${build.samples.jsplike}"
            classpath="${build.lib}/${name}.jar"
-           debug="${debug}"/>
+           debug="${debug}" source="1.4" target="1.4"/>
     <javac srcdir="${build.samples.scriptedui}"
            destdir="${build.samples.scriptedui}"
            classpath="${build.lib}/${name}.jar"
-           debug="${debug}"/>
+           debug="${debug}" source="1.4" target="1.4"/>
     <javac srcdir="${build.samples.xsl}"
            destdir="${build.samples.xsl}"
            classpath="${build.lib}/${name}.jar"
-           debug="${debug}"/>
+           debug="${debug}" source="1.4" target="1.4"/>
   </target>
 
   <!-- =================================================================== -->
diff -Naur ../bsf-2.3.0.orig/src/bsf_debug/build.xml ./src/bsf_debug/build.xml
--- ../bsf-2.3.0.orig/src/bsf_debug/build.xml	2002-11-13 07:28:55.000000000 +0100
+++ ./src/bsf_debug/build.xml	2006-09-25 14:27:22.000000000 +0200
@@ -98,7 +98,8 @@
       </fileset>
     </copy>
 
-    <javac srcdir="${src.dir}" destdir="${build.dest}" debug="${debug}"/>
+    <javac srcdir="${src.dir}" destdir="${build.dest}" debug="${debug}"
+           source="1.4" target="1.4"/>
 
     <!-- ================================================================= -->
     <!-- Produces the jar file                                             -->
diff -Naur ../bsf-2.3.0.orig/src/jsdb/build.xml ./src/jsdb/build.xml
--- ../bsf-2.3.0.orig/src/jsdb/build.xml	2002-11-13 07:28:54.000000000 +0100
+++ ./src/jsdb/build.xml	2006-09-25 14:26:22.000000000 +0200
@@ -99,7 +99,7 @@
       </fileset>
     </copy>
 
-    <javac srcdir="${src.dir}" destdir="${build.dest}" debug="${debug}" classpath="${bsf_debug}/build/lib/bsf_debug.jar"/>
+    <javac srcdir="${src.dir}" destdir="${build.dest}" debug="${debug}" classpath="${bsf_debug}/build/lib/bsf_debug.jar" source="1.4" target="1.4"/>
 
     <!-- ================================================================= -->
     <!-- Produces the jar file                                             -->
diff -Naur ../bsf-2.3.0.orig/src/taglib/build.xml ./src/taglib/build.xml
--- ../bsf-2.3.0.orig/src/taglib/build.xml	2002-11-13 07:28:53.000000000 +0100
+++ ./src/taglib/build.xml	2006-09-25 14:26:53.000000000 +0200
@@ -157,7 +157,8 @@
   <target name="compile" depends="prepare">
     <copy file="${conf.src}/taglib.tld"
               tofile="${build.library}/META-INF/taglib.tld"/>
-    <javac srcdir="${library.src}" destdir="${build.library}" debug="on">
+    <javac srcdir="${library.src}" destdir="${build.library}" debug="on"
+           source="1.4" target="1.4">
       <classpath> 
       <pathelement location="${servlet.jar}"/>
       <pathelement location="${taglib.extraclasspath}"/>