Leverage -workDir to allow parallelized testing without clobbering.

Patch by: fabbott

git-svn-id: https://google-web-toolkit.googlecode.com/svn/releases/1.6@4014 8db76d5a-ed1c-0410-87a9-c151d255dfc7

user/build.xml

diff --git a/user/build.xml b/user/build.xml
index 0539253..6bc6113 100755
--- a/user/build.xml
+++ b/user/build.xml
@@ -78,7 +78,7 @@
 
   <target name="remoteweb-test" description="Run a remoteweb test at the given host and path" if="gwt.remote.browsers">
     <echo message="Performing remote browser testing at ${gwt.remote.browsers}" />
-    <gwt.junit test.args="${test.args} -out www -remoteweb ${gwt.remote.browsers}" test.out="${junit.out}/remoteweb" test.cases="default.web.tests" >
+    <gwt.junit test.args="${test.args} -out www -workDir ${junit.out}/remoteweb/workdir -remoteweb ${gwt.remote.browsers}" test.out="${junit.out}/remoteweb" test.cases="default.web.tests" >
       <extraclasspaths>
         <pathelement location="${gwt.build}/out/dev/core/bin-test" />
       </extraclasspaths>
@@ -87,7 +87,7 @@
 
   <target name="selenium-test" description="Run a remote test using Selenium RC test at the given host and path" if="gwt.selenium.hosts">
     <echo message="Performing remote browser testing using Selenium RC at ${gwt.selenium.hosts}" />
-    <gwt.junit test.args="${test.args} -out www -selenium ${gwt.selenium.hosts}" test.out="${junit.out}/selenium" test.cases="default.web.tests" >
+    <gwt.junit test.args="${test.args} -out www -workDir ${junit.out}/selenium/workdir -selenium ${gwt.selenium.hosts}" test.out="${junit.out}/selenium" test.cases="default.web.tests" >
       <extraclasspaths>
         <pathelement location="${gwt.build}/out/dev/core/bin-test" />
       </extraclasspaths>
@@ -95,7 +95,7 @@
   </target>
 
   <target name="test.hosted" depends="compile, compile.tests" description="Run only hosted-mode tests for this project.">
-    <gwt.junit test.args="${test.args}" test.out="${junit.out}/${build.host.platform}-hosted-mode" test.cases="default.hosted.tests" >
+    <gwt.junit test.args="${test.args} -workDir ${junit.out}/${build.host.platform}-hosted-mode/workdir" test.out="${junit.out}/${build.host.platform}-hosted-mode" test.cases="default.hosted.tests" >
       <extraclasspaths>
         <pathelement location="${gwt.build}/out/dev/core/bin-test" />
       </extraclasspaths>
@@ -103,7 +103,7 @@
   </target>
 
   <target name="test.web" depends="compile, compile.tests" description="Run only web-mode tests for this project.">
-    <gwt.junit test.args="${test.args} -out www -web" test.out="${junit.out}/${build.host.platform}-web-mode" test.cases="default.web.tests" >
+    <gwt.junit test.args="${test.args} -out www -workDir ${junit.out}/${build.host.platform}-web-mode/workdir -web" test.out="${junit.out}/${build.host.platform}-web-mode" test.cases="default.web.tests" >
       <extraclasspaths>
         <pathelement location="${gwt.build}/out/dev/core/bin-test" />
       </extraclasspaths>