Add unit test for [JACKSON-265]; seems to pass currently.
diff --git a/build-test.xml b/build-test.xml
index e4fa88a..34e7bbb 100644
--- a/build-test.xml
+++ b/build-test.xml
@@ -92,9 +92,12 @@
 
     <target name="test.run" depends="test.compile">
        <!-- showoutput 'yes' to allow outputting debug msgs... -->
-        <junit fork="no" printsummary="yes" haltonfailure="no"
+        <!-- 09-Apr-2010, tatu: Looks like we must fork, otherwise there may be
+               issues with junit version?
+          -->
+        <junit fork="yes" printsummary="yes" haltonfailure="no"
          showoutput="yes">
-            <batchtest fork="no" todir="${dir.test.xmlresults}">
+            <batchtest fork="yes" todir="${dir.test.xmlresults}">
                 <fileset dir="${dir.test.classes}">
                     <!-- Need to exclude inner classes... -->
                     <exclude name="**/*$*.class"/>
@@ -162,7 +165,10 @@
     <target name="test.single" depends="test.compile">
          <fail unless="test" message="Must define -Dtest" />
        <!-- showoutput 'yes' to allow outputting debug msgs... -->
-        <junit fork="no" maxmemory="128M" showoutput="yes" printsummary="yes">
+        <!-- 09-Apr-2010, tatu: Looks like we must fork, otherwise there may be
+               issues with junit version?
+          -->
+        <junit fork="yes" maxmemory="128M" showoutput="yes" printsummary="yes">
           <formatter type="plain" usefile="no" />
           <test name="${test}" />
           <classpath>