THRIFT-2328: Java eliminate all compiler warnings
Client: java
Patch: jfarrell

reverting previous patch for 0.9.1 and will suppress individually or address for 1.0
diff --git a/lib/java/build.xml b/lib/java/build.xml
index 815a354..5545b8c 100755
--- a/lib/java/build.xml
+++ b/lib/java/build.xml
@@ -93,6 +93,7 @@
   <target name="compile" depends="init">
     <javac srcdir="${src}" destdir="${build.dir}" source="1.5" target="1.5" 
     debug="true" classpathref="compile.classpath" includeantruntime="false" encoding="UTF-8">
+      <compilerarg value="-Xlint:unchecked"/>
     </javac>
   </target>