Removing the use of an external xml parsing lib.

API JDiffs for Google Play services ran across a bug with the
xerces.jar so switching to the native library to resolve.

Change-Id: Ia5f8acbbeff54af51986512505933e83f7919d73
(cherry picked from commit 2f5f31a8f36d12a0cbf4520f213ef325c18d40b3)
diff --git a/build.xml b/build.xml
index 3dd9657..458b40d 100755
--- a/build.xml
+++ b/build.xml
@@ -4,7 +4,6 @@
 <description>
 Builds Android's jdiff.jar and places it in device/extlibs/jdiff-1.1.0/. 
 </description>
-	 
 
 <target name="init" description="Properties used by other targets">
   <property name="extlibs.dir" value="${basedir}/../../extlibs/jdiff-1.1.0/" />
@@ -13,9 +12,6 @@
   <property name="classes.dir" value="${build.dir}/classes" />
   <property name="lib.dir" value="${build.dir}/lib" />
   <property name="version" value="1.1.0" />
-  <path id="class.path">
-    <pathelement location="{basedir}/../../extlibs/xerces.jar" />
-  </path>
   <property name="debug" value="true" />
   <property name="JDIFF_HOME" value="${extlibs.dir}" />
 </target>
@@ -39,17 +35,15 @@
          destdir="${classes.dir}"
          debug="${debug}"
          excludes="jdiff/JDiffAntTask.java"
-         includeJavaRuntime="yes">
-    <classpath>
-      <path refid="class.path" />
-    </classpath>
-<!--<compilerarg value="-Xlint:unchecked"/>   -->
+         fork="true"
+         includeJavaRuntime="false"
+         includeAntRuntime="yes">
   </javac>
-</target>	
+</target>
 
 <!-- Place the jdiff.jar file in <branch-root>/device/extlibs/jdiff-.1.0/ (under version control) -->
-	<target name="jar" depends="compile">
-  <jar jarfile="${basedir}/jdiff.jar" 
+<target name="jar" depends="compile">
+  <jar jarfile="${basedir}/jdiff.jar"
        basedir="${classes.dir}"
        includes="*jdiff/*.class"
        excludes="*jdiff/JDiffAntTask*.class" />
diff --git a/src/jdiff/XMLToAPI.java b/src/jdiff/XMLToAPI.java
index 8937a66..046da4b 100755
--- a/src/jdiff/XMLToAPI.java
+++ b/src/jdiff/XMLToAPI.java
@@ -2,6 +2,7 @@
 
 import java.io.*;
 import java.util.*;
+import javax.xml.parsers.ParserConfigurationException;
 
 /* For SAX parsing in APIHandler */
 import org.xml.sax.Attributes;
@@ -47,19 +48,17 @@
             XMLReader parser = null;
             DefaultHandler handler = new APIHandler(api_, createGlobalComments);
             try {
-                String parserName = System.getProperty("org.xml.sax.driver");
-                if (parserName == null) {
-                    parser = org.xml.sax.helpers.XMLReaderFactory.createXMLReader("org.apache.xerces.parsers.SAXParser");
-                } else {
-                    // Let the underlying mechanisms try to work out which 
-                    // class to instantiate
-                    parser = org.xml.sax.helpers.XMLReaderFactory.createXMLReader();
-                }
+                parser = javax.xml.parsers.SAXParserFactory.newInstance().newSAXParser().getXMLReader();
             } catch (SAXException saxe) {
                 System.out.println("SAXException: " + saxe);
                 saxe.printStackTrace();
                 System.exit(1);
+            } catch (ParserConfigurationException pce) {
+                System.out.println("ParserConfigurationException: " + pce);
+                pce.printStackTrace();
+                System.exit(1);
             }
+
             if (validateXML) {
                 parser.setFeature("http://xml.org/sax/features/namespaces", true);
                 parser.setFeature("http://xml.org/sax/features/validation", true);
diff --git a/xerces.jar b/xerces.jar
deleted file mode 100644
index 8f762e1..0000000
--- a/xerces.jar
+++ /dev/null
Binary files differ