diff --git a/build.xml b/build.xml
index 229bec2..2037a6f 100644
--- a/build.xml
+++ b/build.xml
@@ -24,10 +24,10 @@
 		<mkdir dir="${output}" />
 
 		<javac srcdir="${basedir}" destdir="${output}"
-					debuglevel="lines,source"
-					source="1.8"
-					target="1.8">
-			<compilerarg line="-Xlint:none"/>
+                                        debuglevel="lines,vars,source"
+					debug="true"
+					release="11">
+			<compilerarg line="-Xlint:none -encoding cp1252 --patch-module java.compiler=${javaapi}"/>
 		</javac>
 
 		<delete file="${basedir}/META-INF/MANIFEST.MF" failonerror="false"/>