We want to get rid of rewrite-xml provided by javatoolkit.

--- a/build.xml
+++ b/build.xml
@@ -124,7 +124,8 @@ jsapi.exe from the lib directory.
             description="Build just the srcs">
         <mkdir dir="${classes_dir}" />
         <javac debug="true"
-               source="1.4"
+               source="8"
+               target="8"
                deprecation="true"
                srcdir="${src_dir}"
                excludes="tests/**"
@@ -145,7 +146,8 @@ jsapi.exe from the lib directory.
             description="Build just the tests">
         <mkdir dir="${classes_dir}" />
         <javac debug="true"
-               source="1.4"
+               source="8"
+               target="8"
                deprecation="true"
                srcdir="${src_dir}"
                includes="tests/**"
@@ -904,7 +906,8 @@ jsapi.exe from the lib directory.
     <target name="javadoc" description="Generate javadoc">
         <mkdir dir="${javadoc_dir}" />
         <javadoc sourcepath="${src_dir}"
-                 source="1.4"
+                 source="8"
+                 target="8"
                  additionalparam="-breakiterator"
                  destdir="${javadoc_dir}"
                  packagenames="${javadoc_pkgs}"