Revert "cross compile with jdk7 compiler"

This reverts commit d23c317.

build.properties

@@ -1,11 +1,4 @@
-## Main source
-
-
-# Directory that points to the JRE folder to bootstrap.
-# See: http://blogs.oracle.com/darcy/entry/bootclasspath_older_source for more details  
-# Eg: /usr/local/jdk1.6.0_30/jre, say , that contains the rt.jar for the distribution.
-java5.home=${java.home}
-
+## Main source 
 src.dir=src
 java.dir=src/java
 python.dir=clients/python
@@ -42,4 +35,3 @@ tomcat.context=/voldemort
 
 ## Release
 curr.release=0.90.1
-

build.xml

@@ -14,13 +14,6 @@
     </fileset>
     <pathelement path="${classes.dir}" />
   </path>
-
-  <path id="bootref-classpath">
-    <fileset dir="${java5.home}/lib">
-      <include name="rt.jar" />
-    </fileset>
-  </path>
-
 
   <!-- set the build number based on environment variable, otherwise blank -->
   <property environment="env" description="System environment variables (including those set by Hudson)"/>
@@ -86,12 +79,9 @@
     <!-- place to put log4j.properties -->
     <replace-dir dir="${resources.dir}"/>
     <copy file="${java.dir}/log4j.properties" todir="${resources.dir}"/>
-    <echo message="JAVA_HOME = ${java5.home}" />
-  	<echo message="JAVA5_HOME = ${java5.home}" />
-    <javac destdir="${classes.dir}" source="1.5" target="1.5" debug="true" deprecation="false" failonerror="true" includeantruntime="false">
+    <javac destdir="${classes.dir}" target="1.5" debug="true" deprecation="false" failonerror="true" includeantruntime="false">
       <src path="${java.dir}" />
       <classpath refid="main-classpath" />
-    	<bootclasspath refid="bootref-classpath" />
     </javac>
   </target>
 
@@ -109,12 +99,11 @@
         <exclude name="**/*.html" />
       </fileset>
     </copy>
-    <javac destdir="${testclasses.dir}" source="1.5" target="1.5" debug="true" deprecation="false" failonerror="true" includeantruntime="false">
+    <javac destdir="${testclasses.dir}" target="1.5" debug="true" deprecation="false" failonerror="true" includeantruntime="false">
       <src path="${unittestsrc.dir}" />
       <src path="${inttestsrc.dir}" />
       <src path="${commontestsrc.dir}" />
       <classpath refid="main-classpath" />
-      <bootclasspath refid="bootref-classpath" />    	
     </javac>
   </target>
 
@@ -190,12 +179,11 @@
 
   <target name="contrib-build" depends="build, buildtest" description="Compile contrib packages (java and test) ">
     <replace-dir dir="${contrib.classes.dir}" />
-    <javac destdir="${contrib.classes.dir}" source="1.5" target="1.5" debug="true" deprecation="false" failonerror="true" includeantruntime="false">
+    <javac destdir="${contrib.classes.dir}" target="1.5" debug="true" deprecation="false" failonerror="true" includeantruntime="false">
       <src path="${contrib.root.dir}" />
       <src path="${contrib.root.dir}" />
       <classpath refid="main-classpath" />
       <classpath refid="contrib-classpath" />
-      <bootclasspath refid="bootref-classpath" />    	
     </javac>
     <copy todir="${contrib.classes.dir}">
       <fileset dir="${contrib.root.dir}/ec2-testing/resources" />