diff -up SRC/build.xml.p00 SRC/build.xml
--- SRC/build.xml.p00	2023-04-20 11:16:32.762221158 +0300
+++ SRC/build.xml	2023-04-20 11:24:00.668073471 +0300
@@ -462,7 +462,7 @@
     </patternset>
 
     <!-- meta build targets -->
-    <target name="all" depends="info, main, tests, build-tools, tools, demos, samples, perf-tests, jar, docs" description="Build all primary targets"/>
+    <target name="all" depends="info, main, tests, tools, demos, samples, perf-tests, jar, docs" description="Build all primary targets"/>
     <target name="main" depends="info, core, collate, charset, currdata, langdata, regiondata, translit, localespi" description="Build ICU4J runtime library classes"/>
     <target name="tests" depends="info, core-tests, charset-tests, collate-tests, packaging-tests, translit-tests, localespi-tests" description="Build ICU4J test classes"/>
 
@@ -1312,7 +1312,7 @@
     </target>
 
     <!-- doc targets -->
-    <target name="docs" depends="info, build-tools, _checkJCite, _docsWithJCite, _docsWithoutJCite" description="Build API documents"/>
+    <target name="docs" depends="info, _checkJCite, _docsWithJCite, _docsWithoutJCite" description="Build API documents"/>
 
     <target name="docsStrict" description="Build API documents with all doclint check enabled">
         <condition property="doclint.option" value="-Xdoclint:all">
@@ -1356,7 +1356,7 @@
                 docencoding="UTF-8"
                 charset="UTF-8"
                 bottom="${icu4j.api.doc.copyright.footer}"
-                additionalparam="${doclint.option} -breakiterator -use -tagletpath ${icu4j.build-tools.jar}${path.separator}${jcite.libs} -taglet com.ibm.icu.dev.tool.docs.ICUTaglet -taglet ch.arrenbrecht.jcite.JCiteTaglet -J-Djcitesourcepath=${jcite.addl.src} -J-Dfile.encoding=UTF-8"
+                additionalparam="${doclint.option} -breakiterator -use -J-Djcitesourcepath=${jcite.addl.src} -J-Dfile.encoding=UTF-8"
                 link="${icu4j.api.doc.jdk.link}"
                 source="${javac.source}"
                 stylesheetfile="${docs.style.sheet}"
@@ -1393,7 +1393,7 @@
                 docencoding="UTF-8"
                 charset="UTF-8"
                 bottom="${icu4j.api.doc.copyright.footer}"
-                additionalparam="${doclint.option} -breakiterator -use -tagletpath ${icu4j.build-tools.jar} -taglet com.ibm.icu.dev.tool.docs.ICUTaglet"
+                additionalparam="${doclint.option} -breakiterator -use"
                 link="${icu4j.api.doc.jdk.link}"
                 source="${javac.source}"
                 failonerror="true">
@@ -1439,7 +1439,7 @@
                 docencoding="UTF-8"
                 charset="UTF-8"
                 bottom="${icu4j.api.doc.copyright.footer}"
-                additionalparam="${doclint.option} -breakiterator -use -tagletpath ${icu4j.build-tools.jar}${path.separator}${jcite.libs} -taglet com.ibm.icu.dev.tool.docs.ICUTaglet -taglet ch.arrenbrecht.jcite.JCiteTaglet -J-Djcitesourcepath=${jcite.addl.src} -J-Dfile.encoding=UTF-8"
+                additionalparam="${doclint.option} -breakiterator -use -J-Djcitesourcepath=${jcite.addl.src} -J-Dfile.encoding=UTF-8"
                 link="${icu4j.api.doc.jdk.link}"
                 source="${javac.source}"
                 stylesheetfile="${docs.style.sheet}"
@@ -1479,7 +1479,7 @@
                 docencoding="UTF-8"
                 charset="UTF-8"
                 bottom="${icu4j.api.doc.copyright.footer}"
-                additionalparam="${doclint.option} -breakiterator -use -tagletpath ${icu4j.build-tools.jar}${path.separator}${jcite.libs} -taglet com.ibm.icu.dev.tool.docs.ICUTaglet -taglet ch.arrenbrecht.jcite.JCiteTaglet -J-Djcitesourcepath=${jcite.addl.src} -J-Dfile.encoding=UTF-8"
+                additionalparam="${doclint.option} -breakiterator -use -J-Djcitesourcepath=${jcite.addl.src} -J-Dfile.encoding=UTF-8"
                 link="${icu4j.api.doc.jdk.link}"
                 source="${javac.source}"
                 stylesheetfile="${docs.style.sheet}"
@@ -1664,7 +1664,6 @@
             <packageset dir="${icu4j.charset.dir}/src">
                 <include name="com/ibm/icu/charset/**"/>
             </packageset>
-            <doclet name="com.ibm.icu.dev.tool.docs.CheckTags" path="${icu4j.build-tools.jar}"/>
         </javadoc>
     </target>
 
@@ -1690,13 +1689,6 @@
             <packageset dir="${icu4j.translit.dir}/src">
                 <include name="com/ibm/icu/text/**"/>
             </packageset>
-            <doclet name="com.ibm.icu.dev.tool.docs.GatherAPIData" path="${icu4j.build-tools.jar}">
-                <param name="-name" value="ICU4J ${icu4j.impl.version}"/>
-                <param name="-output" value="${out.dir}/icu4j${api.report.version}.api3"/>
-                <param name="-internal"/>
-                <param name="-version"/>
-                <param name="-gzip"/>
-            </doclet>
         </javadoc>
     </target>