diff --git a/Android.bp b/Android.bp
index 1fb50b6..1aa297f 100644
--- a/Android.bp
+++ b/Android.bp
@@ -396,6 +396,7 @@
         "soundtrigger_middleware-aidl-java",
         "modules-utils-binary-xml",
         "modules-utils-build",
+        "modules-utils-fastxmlserializer",
         "modules-utils-preconditions",
         "modules-utils-statemachine",
         "modules-utils-synchronous-result-receiver",
diff --git a/apex/jobscheduler/service/Android.bp b/apex/jobscheduler/service/Android.bp
index a4a0b4b..83ad736 100644
--- a/apex/jobscheduler/service/Android.bp
+++ b/apex/jobscheduler/service/Android.bp
@@ -26,6 +26,10 @@
         "unsupportedappusage",
     ],
 
+    static_libs: [
+        "modules-utils-fastxmlserializer",
+    ],
+
     // Rename classes shared with the framework
     jarjar_rules: "jarjar-rules.txt",
 
diff --git a/core/java/Android.bp b/core/java/Android.bp
index 26b7581..b6789aa 100644
--- a/core/java/Android.bp
+++ b/core/java/Android.bp
@@ -226,7 +226,6 @@
         "com/android/internal/util/ConcurrentUtils.java",
         "com/android/internal/util/DumpUtils.java",
         "com/android/internal/util/FastPrintWriter.java",
-        "com/android/internal/util/FastXmlSerializer.java",
         "com/android/internal/util/FunctionalUtils.java",
         "com/android/internal/util/ParseUtils.java",
         "com/android/internal/util/RingBufferIndices.java",
@@ -455,7 +454,6 @@
         "com/android/internal/util/AsyncChannel.java",
         "com/android/internal/util/AsyncService.java",
         "com/android/internal/util/BitwiseInputStream.java",
-        "com/android/internal/util/FastXmlSerializer.java",
         "com/android/internal/util/HexDump.java",
         "com/android/internal/util/IndentingPrintWriter.java",
         "com/android/internal/util/UserIcons.java",
@@ -505,7 +503,6 @@
         "android/net/InterfaceConfiguration.java",
         "android/util/BackupUtils.java",
         "android/util/Rational.java",
-        "com/android/internal/util/FastXmlSerializer.java",
         "com/android/internal/util/HexDump.java",
         "com/android/internal/util/MessageUtils.java",
         "com/android/internal/util/WakeupMessage.java",
diff --git a/core/java/com/android/internal/util/FastXmlSerializer.java b/core/java/com/android/internal/util/FastXmlSerializer.java
deleted file mode 100644
index 929c9e8..0000000
--- a/core/java/com/android/internal/util/FastXmlSerializer.java
+++ /dev/null
@@ -1,424 +0,0 @@
-/*
- * Copyright (C) 2006 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.internal.util;
-
-import android.compat.annotation.UnsupportedAppUsage;
-
-import org.xmlpull.v1.XmlSerializer;
-
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.OutputStreamWriter;
-import java.io.UnsupportedEncodingException;
-import java.io.Writer;
-import java.nio.ByteBuffer;
-import java.nio.CharBuffer;
-import java.nio.charset.Charset;
-import java.nio.charset.CharsetEncoder;
-import java.nio.charset.CoderResult;
-import java.nio.charset.CodingErrorAction;
-import java.nio.charset.IllegalCharsetNameException;
-import java.nio.charset.UnsupportedCharsetException;
-
-/**
- * This is a quick and dirty implementation of XmlSerializer that isn't horribly
- * painfully slow like the normal one.  It only does what is needed for the
- * specific XML files being written with it.
- */
-public class FastXmlSerializer implements XmlSerializer {
-    private static final String ESCAPE_TABLE[] = new String[] {
-        "&#0;",   "&#1;",   "&#2;",   "&#3;",  "&#4;",    "&#5;",   "&#6;",  "&#7;",  // 0-7
-        "&#8;",   "&#9;",   "&#10;",  "&#11;", "&#12;",   "&#13;",  "&#14;", "&#15;", // 8-15
-        "&#16;",  "&#17;",  "&#18;",  "&#19;", "&#20;",   "&#21;",  "&#22;", "&#23;", // 16-23
-        "&#24;",  "&#25;",  "&#26;",  "&#27;", "&#28;",   "&#29;",  "&#30;", "&#31;", // 24-31
-        null,     null,     "&quot;", null,     null,     null,     "&amp;",  null,   // 32-39
-        null,     null,     null,     null,     null,     null,     null,     null,   // 40-47
-        null,     null,     null,     null,     null,     null,     null,     null,   // 48-55
-        null,     null,     null,     null,     "&lt;",   null,     "&gt;",   null,   // 56-63
-    };
-
-    private static final int DEFAULT_BUFFER_LEN = 32*1024;
-
-    private static String sSpace = "                                                              ";
-
-    private final int mBufferLen;
-    private final char[] mText;
-    private int mPos;
-
-    private Writer mWriter;
-
-    private OutputStream mOutputStream;
-    private CharsetEncoder mCharset;
-    private ByteBuffer mBytes;
-
-    private boolean mIndent = false;
-    private boolean mInTag;
-
-    private int mNesting = 0;
-    private boolean mLineStart = true;
-
-    @UnsupportedAppUsage
-    public FastXmlSerializer() {
-        this(DEFAULT_BUFFER_LEN);
-    }
-
-    /**
-     * Allocate a FastXmlSerializer with the given internal output buffer size.  If the
-     * size is zero or negative, then the default buffer size will be used.
-     *
-     * @param bufferSize Size in bytes of the in-memory output buffer that the writer will use.
-     */
-    public FastXmlSerializer(int bufferSize) {
-        mBufferLen = (bufferSize > 0) ? bufferSize : DEFAULT_BUFFER_LEN;
-        mText = new char[mBufferLen];
-        mBytes = ByteBuffer.allocate(mBufferLen);
-    }
-
-    private void append(char c) throws IOException {
-        int pos = mPos;
-        if (pos >= (mBufferLen-1)) {
-            flush();
-            pos = mPos;
-        }
-        mText[pos] = c;
-        mPos = pos+1;
-    }
-
-    private void append(String str, int i, final int length) throws IOException {
-        if (length > mBufferLen) {
-            final int end = i + length;
-            while (i < end) {
-                int next = i + mBufferLen;
-                append(str, i, next<end ? mBufferLen : (end-i));
-                i = next;
-            }
-            return;
-        }
-        int pos = mPos;
-        if ((pos+length) > mBufferLen) {
-            flush();
-            pos = mPos;
-        }
-        str.getChars(i, i+length, mText, pos);
-        mPos = pos + length;
-    }
-
-    private void append(char[] buf, int i, final int length) throws IOException {
-        if (length > mBufferLen) {
-            final int end = i + length;
-            while (i < end) {
-                int next = i + mBufferLen;
-                append(buf, i, next<end ? mBufferLen : (end-i));
-                i = next;
-            }
-            return;
-        }
-        int pos = mPos;
-        if ((pos+length) > mBufferLen) {
-            flush();
-            pos = mPos;
-        }
-        System.arraycopy(buf, i, mText, pos, length);
-        mPos = pos + length;
-    }
-
-    private void append(String str) throws IOException {
-        append(str, 0, str.length());
-    }
-
-    private void appendIndent(int indent) throws IOException {
-        indent *= 4;
-        if (indent > sSpace.length()) {
-            indent = sSpace.length();
-        }
-        append(sSpace, 0, indent);
-    }
-
-    private void escapeAndAppendString(final String string) throws IOException {
-        final int N = string.length();
-        final char NE = (char)ESCAPE_TABLE.length;
-        final String[] escapes = ESCAPE_TABLE;
-        int lastPos = 0;
-        int pos;
-        for (pos=0; pos<N; pos++) {
-            char c = string.charAt(pos);
-            if (c >= NE) continue;
-            String escape = escapes[c];
-            if (escape == null) continue;
-            if (lastPos < pos) append(string, lastPos, pos-lastPos);
-            lastPos = pos + 1;
-            append(escape);
-        }
-        if (lastPos < pos) append(string, lastPos, pos-lastPos);
-    }
-
-    private void escapeAndAppendString(char[] buf, int start, int len) throws IOException {
-        final char NE = (char)ESCAPE_TABLE.length;
-        final String[] escapes = ESCAPE_TABLE;
-        int end = start+len;
-        int lastPos = start;
-        int pos;
-        for (pos=start; pos<end; pos++) {
-            char c = buf[pos];
-            if (c >= NE) continue;
-            String escape = escapes[c];
-            if (escape == null) continue;
-            if (lastPos < pos) append(buf, lastPos, pos-lastPos);
-            lastPos = pos + 1;
-            append(escape);
-        }
-        if (lastPos < pos) append(buf, lastPos, pos-lastPos);
-    }
-
-    public XmlSerializer attribute(String namespace, String name, String value) throws IOException,
-            IllegalArgumentException, IllegalStateException {
-        append(' ');
-        if (namespace != null) {
-            append(namespace);
-            append(':');
-        }
-        append(name);
-        append("=\"");
-
-        escapeAndAppendString(value);
-        append('"');
-        mLineStart = false;
-        return this;
-    }
-
-    public void cdsect(String text) throws IOException, IllegalArgumentException,
-            IllegalStateException {
-        throw new UnsupportedOperationException();
-    }
-
-    public void comment(String text) throws IOException, IllegalArgumentException,
-            IllegalStateException {
-        throw new UnsupportedOperationException();
-    }
-
-    public void docdecl(String text) throws IOException, IllegalArgumentException,
-            IllegalStateException {
-        throw new UnsupportedOperationException();
-    }
-
-    public void endDocument() throws IOException, IllegalArgumentException, IllegalStateException {
-        flush();
-    }
-
-    public XmlSerializer endTag(String namespace, String name) throws IOException,
-            IllegalArgumentException, IllegalStateException {
-        mNesting--;
-        if (mInTag) {
-            append(" />\n");
-        } else {
-            if (mIndent && mLineStart) {
-                appendIndent(mNesting);
-            }
-            append("</");
-            if (namespace != null) {
-                append(namespace);
-                append(':');
-            }
-            append(name);
-            append(">\n");
-        }
-        mLineStart = true;
-        mInTag = false;
-        return this;
-    }
-
-    public void entityRef(String text) throws IOException, IllegalArgumentException,
-            IllegalStateException {
-        throw new UnsupportedOperationException();
-    }
-
-    private void flushBytes() throws IOException {
-        int position;
-        if ((position = mBytes.position()) > 0) {
-            mBytes.flip();
-            mOutputStream.write(mBytes.array(), 0, position);
-            mBytes.clear();
-        }
-    }
-
-    public void flush() throws IOException {
-        //Log.i("PackageManager", "flush mPos=" + mPos);
-        if (mPos > 0) {
-            if (mOutputStream != null) {
-                CharBuffer charBuffer = CharBuffer.wrap(mText, 0, mPos);
-                CoderResult result = mCharset.encode(charBuffer, mBytes, true);
-                while (true) {
-                    if (result.isError()) {
-                        throw new IOException(result.toString());
-                    } else if (result.isOverflow()) {
-                        flushBytes();
-                        result = mCharset.encode(charBuffer, mBytes, true);
-                        continue;
-                    }
-                    break;
-                }
-                flushBytes();
-                mOutputStream.flush();
-            } else {
-                mWriter.write(mText, 0, mPos);
-                mWriter.flush();
-            }
-            mPos = 0;
-        }
-    }
-
-    public int getDepth() {
-        throw new UnsupportedOperationException();
-    }
-
-    public boolean getFeature(String name) {
-        throw new UnsupportedOperationException();
-    }
-
-    public String getName() {
-        throw new UnsupportedOperationException();
-    }
-
-    public String getNamespace() {
-        throw new UnsupportedOperationException();
-    }
-
-    public String getPrefix(String namespace, boolean generatePrefix)
-            throws IllegalArgumentException {
-        throw new UnsupportedOperationException();
-    }
-
-    public Object getProperty(String name) {
-        throw new UnsupportedOperationException();
-    }
-
-    public void ignorableWhitespace(String text) throws IOException, IllegalArgumentException,
-            IllegalStateException {
-        throw new UnsupportedOperationException();
-    }
-
-    public void processingInstruction(String text) throws IOException, IllegalArgumentException,
-            IllegalStateException {
-        throw new UnsupportedOperationException();
-    }
-
-    public void setFeature(String name, boolean state) throws IllegalArgumentException,
-            IllegalStateException {
-        if (name.equals("http://xmlpull.org/v1/doc/features.html#indent-output")) {
-            mIndent = true;
-            return;
-        }
-        throw new UnsupportedOperationException();
-    }
-
-    public void setOutput(OutputStream os, String encoding) throws IOException,
-            IllegalArgumentException, IllegalStateException {
-        if (os == null)
-            throw new IllegalArgumentException();
-        if (true) {
-            try {
-                mCharset = Charset.forName(encoding).newEncoder()
-                        .onMalformedInput(CodingErrorAction.REPLACE)
-                        .onUnmappableCharacter(CodingErrorAction.REPLACE);
-            } catch (IllegalCharsetNameException e) {
-                throw (UnsupportedEncodingException) (new UnsupportedEncodingException(
-                        encoding).initCause(e));
-            } catch (UnsupportedCharsetException e) {
-                throw (UnsupportedEncodingException) (new UnsupportedEncodingException(
-                        encoding).initCause(e));
-            }
-            mOutputStream = os;
-        } else {
-            setOutput(
-                encoding == null
-                    ? new OutputStreamWriter(os)
-                    : new OutputStreamWriter(os, encoding));
-        }
-    }
-
-    public void setOutput(Writer writer) throws IOException, IllegalArgumentException,
-            IllegalStateException {
-        mWriter = writer;
-    }
-
-    public void setPrefix(String prefix, String namespace) throws IOException,
-            IllegalArgumentException, IllegalStateException {
-        throw new UnsupportedOperationException();
-    }
-
-    public void setProperty(String name, Object value) throws IllegalArgumentException,
-            IllegalStateException {
-        throw new UnsupportedOperationException();
-    }
-
-    public void startDocument(String encoding, Boolean standalone) throws IOException,
-            IllegalArgumentException, IllegalStateException {
-        append("<?xml version='1.0' encoding='utf-8'");
-        if (standalone != null) {
-            append(" standalone='" + (standalone ? "yes" : "no") + "'");
-        }
-        append(" ?>\n");
-        mLineStart = true;
-    }
-
-    public XmlSerializer startTag(String namespace, String name) throws IOException,
-            IllegalArgumentException, IllegalStateException {
-        if (mInTag) {
-            append(">\n");
-        }
-        if (mIndent) {
-            appendIndent(mNesting);
-        }
-        mNesting++;
-        append('<');
-        if (namespace != null) {
-            append(namespace);
-            append(':');
-        }
-        append(name);
-        mInTag = true;
-        mLineStart = false;
-        return this;
-    }
-
-    public XmlSerializer text(char[] buf, int start, int len) throws IOException,
-            IllegalArgumentException, IllegalStateException {
-        if (mInTag) {
-            append(">");
-            mInTag = false;
-        }
-        escapeAndAppendString(buf, start, len);
-        if (mIndent) {
-            mLineStart = buf[start+len-1] == '\n';
-        }
-        return this;
-    }
-
-    public XmlSerializer text(String text) throws IOException, IllegalArgumentException,
-            IllegalStateException {
-        if (mInTag) {
-            append(">");
-            mInTag = false;
-        }
-        escapeAndAppendString(text);
-        if (mIndent) {
-            mLineStart = text.length() > 0 && (text.charAt(text.length()-1) == '\n');
-        }
-        return this;
-    }
-
-}