diff --git a/apps/heartbeat/java/build.xml b/apps/heartbeat/java/build.xml
index f0f18e8a3..1cf44876d 100644
--- a/apps/heartbeat/java/build.xml
+++ b/apps/heartbeat/java/build.xml
@@ -9,12 +9,12 @@
     <target name="compile">
         <mkdir dir="./build" />
         <mkdir dir="./build/obj" />
-        <javac srcdir="./src" debug="true" destdir="./build/obj" includes="**/*.java" excludes="net/i2p/heartbeat/gui/**" classpath="../../../core/java/build/i2p.jar" />
+        <javac srcdir="./src" debug="true" target="1.1" source="1.3" deprecation="on" destdir="./build/obj" includes="**/*.java" excludes="net/i2p/heartbeat/gui/**" classpath="../../../core/java/build/i2p.jar" />
     </target>
     <target name="compileGUI">
         <mkdir dir="./build" />
         <mkdir dir="./build/obj" />
-        <javac debug="true" destdir="./build/obj">
+        <javac debug="true" target="1.1" source="1.3" deprecation="on" destdir="./build/obj">
             <src path="src/" />
             <classpath path="../../../core/java/build/i2p.jar" />
             <classpath path="../../jfreechart/jfreechart-0.9.17/lib/jcommon-0.9.2.jar" />
diff --git a/apps/httptunnel/java/build.xml b/apps/httptunnel/java/build.xml
index 6dd9f477e..39f88315f 100644
--- a/apps/httptunnel/java/build.xml
+++ b/apps/httptunnel/java/build.xml
@@ -11,7 +11,7 @@
         <mkdir dir="./build/obj" />
         <javac 
             srcdir="./src" 
-            debug="true" 
+            debug="true" target="1.1" source="1.3" deprecation="on" 
             destdir="./build/obj" 
             classpath="../../../core/java/build/i2p.jar:../../ministreaming/java/build/mstreaming.jar" />
     </target>
diff --git a/apps/i2ptunnel/java/build.xml b/apps/i2ptunnel/java/build.xml
index e06e7dfe0..9e1304a8f 100644
--- a/apps/i2ptunnel/java/build.xml
+++ b/apps/i2ptunnel/java/build.xml
@@ -11,7 +11,7 @@
         <mkdir dir="./build/obj" />
         <javac 
             srcdir="./src" 
-            debug="true" 
+            debug="true" target="1.1" source="1.3" deprecation="on" 
             destdir="./build/obj" 
             classpath="../../../core/java/build/i2p.jar:../../ministreaming/java/build/mstreaming.jar" />
     </target>
diff --git a/apps/ministreaming/java/build.xml b/apps/ministreaming/java/build.xml
index ff45583f9..3eb9d32ae 100644
--- a/apps/ministreaming/java/build.xml
+++ b/apps/ministreaming/java/build.xml
@@ -8,7 +8,7 @@
     <target name="compile">
         <mkdir dir="./build" />
         <mkdir dir="./build/obj" />
-        <javac srcdir="./src" debug="true" destdir="./build/obj" classpath="../../../core/java/build/i2p.jar" />
+        <javac srcdir="./src" debug="true" target="1.1" source="1.3" deprecation="on" destdir="./build/obj" classpath="../../../core/java/build/i2p.jar" />
     </target>
     <target name="jar" depends="compile">
         <jar destfile="./build/mstreaming.jar" basedir="./build/obj" includes="**/*.class" />
diff --git a/apps/netmonitor/java/build.xml b/apps/netmonitor/java/build.xml
index aa09d3f2f..48b88f351 100644
--- a/apps/netmonitor/java/build.xml
+++ b/apps/netmonitor/java/build.xml
@@ -9,13 +9,13 @@
     <target name="compile">
         <mkdir dir="./build" />
         <mkdir dir="./build/obj" />
-        <javac srcdir="./src" debug="true" destdir="./build/obj" includes="net/**/*.java" excludes="net/i2p/netmonitor/gui/**" classpath="../../../core/java/build/i2p.jar" />
+        <javac srcdir="./src" debug="true" target="1.1" source="1.3" deprecation="on" destdir="./build/obj" includes="net/**/*.java" excludes="net/i2p/netmonitor/gui/**" classpath="../../../core/java/build/i2p.jar" />
     </target>
 
     <target name="compileGUI" depends="builddep">
         <mkdir dir="./build" />
         <mkdir dir="./build/obj" />
-        <javac debug="true" destdir="./build/obj">
+        <javac debug="true" target="1.1" source="1.3" deprecation="on" destdir="./build/obj">
             <src path="src/" />
             <classpath path="../../../core/java/build/i2p.jar" />
             <classpath path="../../jfreechart/jfreechart-0.9.17/lib/jcommon-0.9.2.jar" />
diff --git a/apps/phttprelay/java/build.xml b/apps/phttprelay/java/build.xml
index 580ddb3f1..c0b410c25 100644
--- a/apps/phttprelay/java/build.xml
+++ b/apps/phttprelay/java/build.xml
@@ -8,7 +8,7 @@
     <target name="compile">
         <mkdir dir="./build" />
         <mkdir dir="./build/obj" />
-        <javac srcdir="./src" debug="true" destdir="./build/obj" classpath="../../../core/java/build/i2p.jar:lib/javax.servlet.jar" />
+        <javac srcdir="./src" debug="true" target="1.1" source="1.3" deprecation="on" destdir="./build/obj" classpath="../../../core/java/build/i2p.jar:lib/javax.servlet.jar" />
     </target>
     <target name="jar" depends="compile">
         <war destfile="./build/phttprelay.war" webxml="web.xml">
diff --git a/apps/sam/java/build.xml b/apps/sam/java/build.xml
index 5eae22cf0..e9d28bf92 100644
--- a/apps/sam/java/build.xml
+++ b/apps/sam/java/build.xml
@@ -11,7 +11,7 @@
         <mkdir dir="./build/obj" />
         <javac 
             srcdir="./src" 
-            debug="true" 
+            debug="true" target="1.1" source="1.3" deprecation="on" 
             destdir="./build/obj" 
             classpath="../../../core/java/build/i2p.jar:../../ministreaming/java/build/mstreaming.jar" />
     </target>
diff --git a/apps/time/java/build.xml b/apps/time/java/build.xml
index 636443437..677a45ff1 100644
--- a/apps/time/java/build.xml
+++ b/apps/time/java/build.xml
@@ -8,7 +8,7 @@
     <target name="compile">
         <mkdir dir="./build" />
         <mkdir dir="./build/obj" />
-        <javac srcdir="./src" debug="true" destdir="./build/obj" includes="**/*.java" classpath="../../../core/java/build/i2p.jar" />
+        <javac srcdir="./src" debug="true" target="1.1" source="1.3" deprecation="on" destdir="./build/obj" includes="**/*.java" classpath="../../../core/java/build/i2p.jar" />
     </target>
     <target name="jar" depends="compile">
         <jar destfile="./build/timestamper.jar" basedir="./build/obj" includes="**/*.class">
diff --git a/core/java/build.xml b/core/java/build.xml
index 0dc434787..97ed0a3df 100644
--- a/core/java/build.xml
+++ b/core/java/build.xml
@@ -8,7 +8,7 @@
     <target name="compile">
         <mkdir dir="./build" />
         <mkdir dir="./build/obj" />
-        <javac srcdir="./src:./test" debug="true" destdir="./build/obj" />
+        <javac srcdir="./src:./test" debug="true" target="1.1" source="1.3" deprecation="on" destdir="./build/obj" />
     </target>
     <target name="jar" depends="compile">
         <jar destfile="./build/i2p.jar" basedir="./build/obj" includes="**/*.class" />
diff --git a/installer/java/build.xml b/installer/java/build.xml
index 293f4580f..ba16524ee 100644
--- a/installer/java/build.xml
+++ b/installer/java/build.xml
@@ -15,7 +15,7 @@
     <target name="compile">
         <mkdir dir="./build" />
         <mkdir dir="./build/obj" />
-        <javac srcdir="./src" debug="true" destdir="./build/obj" />
+        <javac srcdir="./src" debug="true" target="1.1" source="1.3" deprecation="on" destdir="./build/obj" />
     </target>
     <target name="jar" depends="installer, guiinstaller" />
     <target name="fetchseeds" depends="compile">
diff --git a/router/java/build.xml b/router/java/build.xml
index 70f97c67c..5af51bc39 100644
--- a/router/java/build.xml
+++ b/router/java/build.xml
@@ -8,7 +8,7 @@
     <target name="compile">
         <mkdir dir="./build" />
         <mkdir dir="./build/obj" />
-        <javac srcdir="./src:./test" debug="true" destdir="./build/obj" classpath="../../core/java/build/i2p.jar" />
+        <javac srcdir="./src:./test" debug="true" target="1.1" source="1.3" deprecation="on" destdir="./build/obj" classpath="../../core/java/build/i2p.jar" />
     </target>
     <target name="jar" depends="compile">
         <jar destfile="./build/router.jar" basedir="./build/obj" includes="**/*.class" />