--- swing-worker-1.2/build.xml	2017-09-19 12:32:24.933623439 +0200
+++ swing-worker-1.2/build.xml	2017-09-19 12:33:17.409624335 +0200
@@ -33,13 +33,13 @@
     </target>
     
     <target name="compile" depends="init">
-        <javac source="1.5" destdir="${build.dir}" memoryMaximumSize="200m" fork="yes">
+        <javac destdir="${build.dir}" memoryMaximumSize="200m" fork="yes">
             <src path="${src.dir}" />
         </javac>
     </target>
 
     <target name="demo" depends="compile">
-        <javac source="1.5" destdir="${build.dir}" memoryMaximumSize="200m" fork="yes">
+        <javac destdir="${build.dir}" memoryMaximumSize="200m" fork="yes">
             <src path="${demo.dir}" />
         </javac>
         <java classpath="${build.dir}" 
@@ -47,7 +47,7 @@
     </target>
     
     <target name="test" depends="compile">
-        <javac source="1.5" destdir="${build.dir}" memoryMaximumSize="200m" fork="yes">
+        <javac destdir="${build.dir}" memoryMaximumSize="200m" fork="yes">
             <src path="${test.dir}" />
          </javac>
          <junit printsummary="yes" showoutput="yes" fork="yes">