--- a/java/build.common.xml	Tue Aug 01 10:40:52 2017 +0100
+++ b/java/build.common.xml	Tue Aug 01 10:42:53 2017 +0100
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<project xmlns:ivy="antlib:org.apache.ivy.ant">
+<project xmlns:ivy="antlib:org.apache.ivy.ant">    
     <property name="ivy.jar" value="${TOP}/libjava/java/ivy-2.4.0.jar"/>
+    <property name="ivy.settings.xml" value="${TOP}/libjava/java/ivy-settings.xml"/>
 
     <property name="build.src.dir" value="src"/>
     <property name="build.bin.dir" value="bin"/>
@@ -36,6 +37,10 @@
         <pathelement path="${build.bin-tests.dir}"/>
     </path>
 
+    <taskdef resource="org/apache/ivy/ant/antlib.xml" uri="antlib:org.apache.ivy.ant" classpath="${ivy.jar}" />
+    <ivy:settings file="${ivy.settings.xml}"/>      	   
+    
+
 
     <target name="build" depends="compile"/>
 
@@ -66,8 +71,7 @@
     <target name="libs.main">
 	<mkdir dir="${build.libs.dir}"/>
     </target>
-    <target name="libs.fetch" if="ivy.dep.file.present">
-	<taskdef resource="org/apache/ivy/ant/antlib.xml" uri="antlib:org.apache.ivy.ant" classpath="${ivy.jar}" />
+    <target name="libs.fetch" if="ivy.dep.file.present">	
 	<ivy:retrieve conf="binaries" pattern="${build.libs.dir}/[artifact]-[revision].[ext]" />
 	<ivy:retrieve conf="sources"  pattern="${build.libs-src.dir}/[artifact]-[revision].[ext]" />
     </target>

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/ivy-settings.xml	Tue Aug 01 10:42:53 2017 +0100
@@ -0,0 +1,12 @@
+<ivysettings>
+     <properties environment="env"/>
+     <property name="ivy.executor-number" value="${env.EXECUTOR_NUMBER}" override="false" ifset="env.EXECUTOR_NUMBER"/>
+     <property name="ivy.executor-number" value="0" override="false"/>
+     <caches        
+        defaultCacheDir="${ivy.default.ivy.user.dir}/caches/${ivy.executor-number}/default"
+        resolutionCacheDir="${ivy.default.ivy.user.dir}/caches/${ivy.executor-number}/resolution"
+        />
+    <settings defaultResolver="default"/>
+    <include url="${ivy.default.settings.dir}/ivysettings.xml"/>
+    <lock-strategies>artifact-lock-nio</lock-strategies>
+</ivysettings>
\ No newline at end of file

--- a/libs/java/build.ivy.xml	Tue Aug 01 10:40:52 2017 +0100
+++ b/libs/java/build.ivy.xml	Tue Aug 01 10:42:53 2017 +0100
@@ -2,10 +2,12 @@
 <?eclipse.ant.import?>
 <project xmlns:ivy="antlib:org.apache.ivy.ant" name="stx.libjava.tools.dependencies" default="dependencies">
     <property name="ivy.jar" value="../../java/ivy-2.4.0.jar"/>
-    <target name="dependencies" description="Download required libraries">
-        <taskdef 
-            resource="org/apache/ivy/ant/antlib.xml" uri="antlib:org.apache.ivy.ant"
-            classpath="${ivy.jar}"/>
+    <property name="ivy.settings.xml" value="../../java/ivy-settings.xml"/>
+
+    <taskdef resource="org/apache/ivy/ant/antlib.xml" uri="antlib:org.apache.ivy.ant" classpath="${ivy.jar}"/>
+    <ivy:settings file="${ivy.settings.xml}"/>
+
+    <target name="dependencies" description="Download required libraries">        
          <ivy:retrieve 
                 conf="binaries" 
                 pattern="libs/[artifact]-[revision].[ext]"/>