diff --git a/apps/httptunnel/java/build.xml b/apps/httptunnel/java/build.xml
index cda44d6524..6dd9f477e6 100644
--- a/apps/httptunnel/java/build.xml
+++ b/apps/httptunnel/java/build.xml
@@ -4,7 +4,7 @@
     <target name="build" depends="builddep, jar" />
     <target name="builddep">
         <ant dir="../../ministreaming/java/" target="build" />
-        <ant dir="../../../core/java/" target="build" />
+	<!-- ministreaming will build core -->
     </target>
     <target name="compile">
         <mkdir dir="./build" />
@@ -37,11 +37,11 @@
         <delete dir="./build" />
     </target>
     <target name="cleandep" depends="clean">
-        <ant dir="../../../core/java/" target="cleandep" />
+	<!-- ministreaming will clean core -->
         <ant dir="../../ministreaming/java/" target="distclean" />
     </target>
     <target name="distclean" depends="clean">
-        <ant dir="../../../core/java/" target="distclean" />
+	<!-- ministreaming will clean core -->
         <ant dir="../../ministreaming/java/" target="distclean" />
     </target>
 </project>
diff --git a/apps/i2ptunnel/java/build.xml b/apps/i2ptunnel/java/build.xml
index 8f26dc78a4..e06e7dfe06 100644
--- a/apps/i2ptunnel/java/build.xml
+++ b/apps/i2ptunnel/java/build.xml
@@ -4,7 +4,7 @@
     <target name="build" depends="builddep, jar" />
     <target name="builddep">
         <ant dir="../../ministreaming/java/" target="build" />
-        <ant dir="../../../core/java/" target="build" />
+	<!-- ministreaming will build core -->
     </target>
     <target name="compile">
         <mkdir dir="./build" />
@@ -37,11 +37,11 @@
         <delete dir="./build" />
     </target>
     <target name="cleandep" depends="clean">
-        <ant dir="../../../core/java/" target="cleandep" />
+	<!-- ministreaming will clean core -->
         <ant dir="../../ministreaming/java/" target="distclean" />
     </target>
     <target name="distclean" depends="clean">
-        <ant dir="../../../core/java/" target="distclean" />
+	<!-- ministreaming will clean core -->
         <ant dir="../../ministreaming/java/" target="distclean" />
     </target>
 </project>
diff --git a/build.xml b/build.xml
index cb42e888ab..038c669e1c 100644
--- a/build.xml
+++ b/build.xml
@@ -11,13 +11,14 @@
     <target name="dist" depends="distclean, build, javadoc" />
     <target name="build" depends="builddep, jar" />
     <target name="builddep">
-        <ant dir="core/java/" target="build" />
-        <ant dir="router/java/" target="build" />
-        <ant dir="apps/ministreaming/java/" target="build" />
-        <ant dir="apps/i2ptunnel/java/" target="build" />
-        <ant dir="apps/httptunnel/java/" target="build" />
-        <ant dir="apps/phttprelay/java/" target="build" />
-        <ant dir="installer/java/" target="build" />
+	<!-- build *everything* here, but only once -->
+        <ant dir="core/java/" target="jar" />
+        <ant dir="router/java/" target="jar" />
+        <ant dir="apps/ministreaming/java/" target="jar" />
+        <ant dir="apps/i2ptunnel/java/" target="jar" />
+        <ant dir="apps/httptunnel/java/" target="jar" />
+        <ant dir="apps/phttprelay/java/" target="jar" />
+        <ant dir="installer/java/" target="jar" />
     </target>
     <target name="compile" />
     <target name="jar" depends="compile" >