65206 - Migrate ant / maven to gradle build

compile / jar / test of mrJars
don't include ants build.xml anymore
rename directories to match project and maven artifact names
refactor artifacts - so each project has one artifact
replace static references in hssf/dev tests with junit5 constructs, which had problems in parallel tests
increase gradle heap to 4gb because of OOM - maybe less would also work

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1888488 13f79535-47bb-0310-9956-ffa450edef68

build.gradle

@@ -25,6 +25,7 @@ buildscript {
 }
 
 plugins {
+    id 'base'
     id("org.nosphere.apache.rat") version "0.7.0"
 }
 
@@ -59,6 +60,7 @@ ant.taskdef(name: "junit",
         classpath: configurations.antLibs.asPath)
 
 wrapper {
+    // https://stackoverflow.com/a/54741656/2066598
     gradleVersion = '6.8'
 }
 
@@ -78,6 +80,7 @@ wrapper.finalizedBy adjustWrapperPropertiesFile
  */
 allprojects {
     apply plugin: 'eclipse'
+//    apply plugin: 'idea'
 }
 
 /**
@@ -89,6 +92,7 @@ subprojects {
     //Put instructions for each sub project, but not the master
     apply plugin: 'java-library'
     apply plugin: 'jacoco'
+    apply plugin: 'maven-publish'
 
     version = '5.0.1-SNAPSHOT'
     ext {
@@ -108,6 +112,10 @@ subprojects {
         options.encoding = 'UTF-8'
     }
 
+    tasks.withType(Jar) {
+        duplicatesStrategy = 'fail'
+    }
+
     sourceCompatibility = 1.8
     targetCompatibility = 1.8
 
@@ -127,7 +135,7 @@ subprojects {
 
     jar {
         manifest {
-            attributes 'Implementation-Title': 'Apache POI', 'Implementation-Version': version
+            attributes 'Implementation-Title': 'Apache POI', 'Implementation-Version': project.version
         }
     }
 
@@ -209,6 +217,56 @@ subprojects {
     jenkins.dependsOn javadoc
     jenkins.dependsOn jacocoTestReport
     jenkins.dependsOn rat
+
+    publishing {
+        publications {
+            POI(MavenPublication) {
+                groupId 'org.apache.poi'
+
+                pom {
+                    packaging = 'jar'
+                    url = 'https://poi.apache.org/'
+
+                    mailingLists {
+                        mailingList {
+                            name = 'POI Users List'
+                            subscribe = 'user-subscribe@poi.apache.org'
+                            unsubscribe = 'user-unsubscribe@poi.apache.org'
+                            archive = 'http://mail-archives.apache.org/mod_mbox/poi-user/'
+                        }
+                        mailingList {
+                            name = 'POI Developer List'
+                            subscribe = 'dev-subscribe@poi.apache.org'
+                            unsubscribe = 'dev-unsubscribe@poi.apache.org'
+                            archive = 'http://mail-archives.apache.org/mod_mbox/poi-dev/'
+                        }
+                    }
+
+                    licenses {
+                        license {
+                            name = 'Apache License, Version 2.0'
+                            url = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+                            distribution = 'repo'
+                        }
+                    }
+
+                    organization {
+                        name = 'Apache Software Foundation'
+                        url = 'http://www.apache.org/'
+                    }
+
+                    withXml {
+                        def r = asElement()
+                        def doc = r.getOwnerDocument()
+                        def asl = doc.createComment(new File('../legal/HEADER').text)
+                        // adding ASF header before root node is ignored
+                        // doc.insertBefore(asl, doc.getDocumentElement())
+                        r.insertBefore(asl, r.getFirstChild())
+                    }
+                }
+            }
+        }
+    }
 }
 
 // Make JavaDoc behave similar to Ant, i.e. be a bit more lenient
@@ -264,6 +322,10 @@ task allJavaDoc(type: Javadoc) {
 task jenkins
 jenkins.dependsOn allJavaDoc
 
+clean {
+    delete "${rootDir}/build/dist"
+}
+
 rat {
     // Input directory, defaults to '.'
     inputDir.set(file("."))
@@ -306,3 +368,14 @@ rat {
     // Prints the list of files with unapproved licences to the console, defaults to false
     verbose.set(true)
 }
+
+/*task downloadJarsToLibs() {
+    def f = new File("$projectDir/../lib/ooxml/xmlbeans-5.0.0.jar")
+    if (!f.exists()) {
+    println 'writing file ' + f.getAbsolutePath()
+    f.getParentFile().mkdirs()
+    new URL('https://ci-builds.apache.org/job/POI/job/POI-XMLBeans-DSL-1.8/lastSuccessfulBuild/artifact/build/xmlbeans-5.0.0.jar').withInputStream{ i -> f.withOutputStream{ it << i }}
+    }
+}*/
+
+//compileJava.dependsOn 'downloadJarsToLibs'

build.xml

@@ -89,9 +89,9 @@ under the License.
         <attribute name="name"/>
         <attribute name="value"/>
         <sequential>
-            <mkdir dir="excelant/build/poi-ant-contrib"/>
+            <mkdir dir="poi-excelant/build/poi-ant-contrib"/>
-            <javac srcdir="excelant/src//poi-ant-contrib/java" destdir="excelant/build/poi-ant-contrib" includeantruntime="true" excludes="Junit5Progress.java"/>
+            <javac srcdir="poi-excelant/src//poi-ant-contrib/java" destdir="poi-excelant/build/poi-ant-contrib" includeantruntime="true" excludes="Junit5Progress.java"/>
-            <taskdef name="PropertyResetHelper" classname="PropertyReset" classpath="excelant/build/poi-ant-contrib"/>
+            <taskdef name="PropertyResetHelper" classname="PropertyReset" classpath="poi-excelant/build/poi-ant-contrib"/>
             <PropertyResetHelper name="@{name}" value="@{value}" />
         </sequential>
     </macrodef>
@@ -115,65 +115,66 @@ under the License.
     <property name="tempdir" value="build/tmp"/>
 
     <!-- Main: -->
-    <property name="main.resources.main" value="main/src/main/resources"/>
+    <property name="main.resources.main" value="poi/src/main/resources"/>
-    <property name="main.src" location="main/src/main/java"/>
+    <property name="main.src" location="poi/src/main/java"/>
-    <property name="main.src.test" location="main/src/test/java"/>
+    <property name="main.src.test" location="poi/src/test/java"/>
-    <property name="main.resources.test" location="main/src/test/resources"/>
+    <property name="main.resources.test" location="poi/src/test/resources"/>
     <property name="main.documentation" value="src/documentation"/>
-    <property name="main.output.dir" location="main/build/classes/ant/java"/>
+    <property name="main.output.dir" location="poi/build/classes/ant/java"/>
-    <property name="main.output.test.dir" location="main/build/test-classes"/>
+    <property name="main.output.test.dir" location="poi/build/test-classes"/>
-    <property name="main.reports.test" location="main/build/test-results"/>
+    <property name="main.reports.test" location="poi/build/test-results"/>
-    <property name="main.testokfile" location="main/build/testokfile.txt"/>
+    <property name="main.testokfile" location="poi/build/testokfile.txt"/>
-    <property name="main.output.gen-sources.dir" location="main/build/generated-sources"/>
+    <property name="main.output.gen-sources.dir" location="poi/build/generated-sources"/>
-    <property name="main.version.template" location="main/src/main/version/Version.java.template"/>
+    <property name="main.version.template" location="poi/src/main/version/Version.java.template"/>
     <property name="main.version.java" location="${main.output.gen-sources.dir}/org/apache/poi/Version.java"/>
 
     <!-- Scratchpad: -->
-    <property name="scratchpad.resources.main" value="scratchpad/src/main/resources"/>
+    <property name="scratchpad.resources.main" value="poi-scratchpad/src/main/resources"/>
-    <property name="scratchpad.src" location="scratchpad/src/main/java"/>
+    <property name="scratchpad.src" location="poi-scratchpad/src/main/java"/>
-    <property name="scratchpad.src.test" location="scratchpad/src/test/java"/>
+    <property name="scratchpad.src.test" location="poi-scratchpad/src/test/java"/>
-    <property name="scratchpad.resources.test" location="scratchpad/src/main/resources"/>
+    <property name="scratchpad.resources.test" location="poi-scratchpad/src/main/resources"/>
-    <property name="scratchpad.reports.test" location="scratchpad/build/test-results"/>
+    <property name="scratchpad.reports.test" location="poi-scratchpad/build/test-results"/>
-    <property name="scratchpad.output.dir" location="scratchpad/build/classes/ant/java"/>
+    <property name="scratchpad.output.dir" location="poi-scratchpad/build/classes/ant/java"/>
-    <property name="scratchpad.output.test.dir" location="scratchpad/build/test-classes"/>
+    <property name="scratchpad.output.test.dir" location="poi-scratchpad/build/test-classes"/>
-    <property name="scratchpad.testokfile" location="scratchpad/build/testokfile.txt"/>
+    <property name="scratchpad.testokfile" location="poi-scratchpad/build/testokfile.txt"/>
 
     <!-- Examples: -->
-    <property name="examples.src" location="examples/src/main/java"/>
+    <property name="examples.src" location="poi-examples/src/main/java"/>
-    <property name="examples.output.dir" location="examples/build/classes/ant/java"/>
+    <property name="examples.output.dir" location="poi-examples/build/classes/ant/java"/>
 
     <!-- OOXML support: -->
-    <property name="ooxml.src" location="ooxml/src/main/java"/>
+    <property name="ooxml.src" location="poi-ooxml/src/main/java"/>
-    <property name="ooxml.resources.main" value="ooxml/src/main/resources"/>
+    <property name="ooxml.resources.main" value="poi-ooxml/src/main/resources"/>
-    <property name="ooxml.src.test" location="ooxml/src/test/java"/>
+    <property name="ooxml.src.test" location="poi-ooxml/src/test/java"/>
-    <property name="ooxml.resources.test" location="ooxml/src/test/resources"/>
+    <property name="ooxml.resources.test" location="poi-ooxml/src/test/resources"/>
-    <property name="ooxml.reports.test" location="ooxml/build/test-results"/>
+    <property name="ooxml.reports.test" location="poi-ooxml/build/test-results"/>
-    <property name="ooxml.output.dir" location="ooxml/build/classes/ant/java"/>
+    <property name="ooxml.output.dir" location="poi-ooxml/build/classes/ant/java"/>
-    <property name="ooxml.output.test.dir" location="ooxml/build/test-classes"/>
+    <property name="ooxml.output.test.dir" location="poi-ooxml/build/test-classes"/>
-    <property name="ooxml.testokfile" location="ooxml/build/testokfile.txt"/>
+    <property name="ooxml.testokfile" location="poi-ooxml/build/testokfile.txt"/>
 
-    <property name="ooxml.lite.agent" location="lib/ooxml-tests/ooxml-lite-agent.jar"/>
+    <property name="ooxml.lite.agent" location="build/dist/maven/poi-ooxml-lite-agent/poi-ooxml-lite-agent-${version.id}.jar"/>
-    <property name="ooxml.lite.report" location="ooxml-schema/build/ooxml-lite-report"/>
+    <property name="ooxml.lite.report" location="build/ooxml-lite-report"/>
     <property name="ooxml.lite.jar" location="build/dist/maven/poi-ooxml-lite/poi-ooxml-lite-${version.id}.jar"/>
     <property name="ooxml.lite.includes" value="^(com/microsoft/schemas|org/(etsi|openxmlformats|w3/)|org/apache/poi/schemas)"/>
+    <property name="ooxml.lite.output.dir" location="poi-ooxml-lite-agent/build/classes/ant/java"/>
 
 
     <!-- Integration testing: -->
-    <property name="integration.src.test" location="integrationtest/src/test/java"/>
+    <property name="integration.src.test" location="poi-integration/src/test/java"/>
-    <property name="integration.resources.test" location="integrationtest/src/test/resources"/>
+    <property name="integration.resources.test" location="poi-integration/src/test/resources"/>
-    <property name="integration.reports.test" location="integrationtest/build/test-results"/>
+    <property name="integration.reports.test" location="poi-integration/build/test-results"/>
-    <property name="integration.output.test.dir" location="integrationtest/build/test-classes"/>
+    <property name="integration.output.test.dir" location="poi-integration/build/test-classes"/>
-    <property name="integration.testokfile" location="integrationtest/build/testokfile.txt"/>
+    <property name="integration.testokfile" location="poi-integration/build/testokfile.txt"/>
 
     <!-- Excelant: -->
-    <property name="excelant.resource.main" value="excelant/src/main/resources"/>
+    <property name="excelant.resource.main" value="poi-excelant/src/main/resources"/>
-    <property name="excelant.src" location="excelant/src/main/java"/>
+    <property name="excelant.src" location="poi-excelant/src/main/java"/>
-    <property name="excelant.src.test" location="excelant/src/test/java"/>
+    <property name="excelant.src.test" location="poi-excelant/src/test/java"/>
-    <property name="excelant.resources.test" location="excelant/src/test/resources"/>
+    <property name="excelant.resources.test" location="poi-excelant/src/test/resources"/>
-    <property name="excelant.reports.test" location="excelant/build/test-results"/>
+    <property name="excelant.reports.test" location="poi-excelant/build/test-results"/>
-    <property name="excelant.output.dir" location="excelant/build/classes/ant/java"/>
+    <property name="excelant.output.dir" location="poi-excelant/build/classes/ant/java"/>
-    <property name="excelant.output.test.dir" location="excelant/build/test-classes"/>
+    <property name="excelant.output.test.dir" location="poi-excelant/build/test-classes"/>
-    <property name="excelant.testokfile" location="excelant/build/testokfile.txt"/>
+    <property name="excelant.testokfile" location="poi-excelant/build/testokfile.txt"/>
 
     <macrodef name="dependency">
         <attribute name="prefix"/>
@@ -347,21 +348,21 @@ under the License.
 
     <!-- See https://www.ecma-international.org/publications/standards/Ecma-376.htm -->
     <!-- "Copy these file(s), free of charge" -->
-    <property name="ooxml-schema.output.dir" location="ooxml-schema/build/classes/ant/java"/>
+    <property name="ooxml-schema.output.dir" location="poi-ooxml-full/build/classes/ant/java"/>
-    <property name="ooxml-schema.output.test.dir" location="ooxml-schema/build/test-classes"/>
+    <property name="ooxml-schema.output.test.dir" location="poi-ooxml-full/build/test-classes"/>
-    <property name="ooxml-schema.output.gen-sources.dir" location="ooxml-schema/build/generated-sources"/>
+    <property name="ooxml-schema.output.gen-sources.dir" location="poi-ooxml-full/build/generated-sources"/>
-    <property name="ooxml-schema.output.gen-classes.dir" location="ooxml-schema/build/generated-classes"/>
+    <property name="ooxml-schema.output.gen-classes.dir" location="poi-ooxml-full/build/generated-classes"/>
-    <property name="ooxml.xsds.izip.1" value="${basedir}/ooxml-schema/src/main/xmlschema/org/apache/poi/schemas/OfficeOpenXML-XMLSchema-Transitional.zip"/>
+    <property name="ooxml.xsds.izip.1" value="${basedir}/poi-ooxml-full/src/main/xmlschema/org/apache/poi/schemas/OfficeOpenXML-XMLSchema-Transitional.zip"/>
-    <property name="ooxml.xsds.src.dir" location="ooxml-schema/build/xsds"/>
+    <property name="ooxml.xsds.src.dir" location="poi-ooxml-full/build/xsds"/>
     <property name="ooxml.xsds.src.jar" location="build/dist/maven/poi-ooxml-full/poi-ooxml-full-${version.id}-sources.jar"/>
     <property name="ooxml.xsds.jar" location="build/dist/maven/poi-ooxml-full/poi-ooxml-full-${version.id}.jar"/>
 
     <!-- additional schemas are packed into the poi schemas jar, -->
     <!-- so we don't have to care about a separate versioning of the original ooxml schemas -->
-    <property name="ooxml.xsds.izip.2" value="${basedir}/ooxml-schema/src/main/xmlschema/org/apache/poi/schemas/OpenPackagingConventions-XMLSchema.zip"/>
+    <property name="ooxml.xsds.izip.2" value="${basedir}/poi-ooxml-full/src/main/xmlschema/org/apache/poi/schemas/OpenPackagingConventions-XMLSchema.zip"/>
-    <property name="ooxml.security.xsd.dir" location="ooxml-schema/src/main/xmlschema/org/apache/poi/poifs/crypt"/>
+    <property name="ooxml.security.xsd.dir" location="poi-ooxml-full/src/main/xmlschema/org/apache/poi/poifs/crypt"/>
-    <property name="ooxml.visio.xsd.dir" location="ooxml-schema/src/main/xmlschema/org/apache/poi/xdgf"/>
+    <property name="ooxml.visio.xsd.dir" location="poi-ooxml-full/src/main/xmlschema/org/apache/poi/xdgf"/>
-    <property name="ooxml.schema.xsdconfig.dir" location="ooxml-schema/src/main/xmlschema/org/apache/poi/schemas"/>
+    <property name="ooxml.schema.xsdconfig.dir" location="poi-ooxml-full/src/main/xmlschema/org/apache/poi/schemas"/>
 
     <!-- Coverage -->
     <property name="coverage.dir" value="build/coverage"/>
@@ -623,13 +624,13 @@ under the License.
 
     <target name="clean" description="Remove generated artefacts">
         <delete dir="build"/>
-        <delete dir="examples/build"/>
+        <delete dir="poi-examples/build"/>
-        <delete dir="excelant/build"/>
+        <delete dir="poi-excelant/build"/>
-        <delete dir="integrationtest/build"/>
+        <delete dir="poi-integration/build"/>
-        <delete dir="main/build"/>
+        <delete dir="poi/build"/>
-        <delete dir="ooxml/build"/>
+        <delete dir="poi-ooxml/build"/>
-        <delete dir="ooxml-schema/build"/>
+        <delete dir="poi-ooxml-full/build"/>
-        <delete dir="scratchpad/build"/>
+        <delete dir="poi-scratchpad/build"/>
         <delete includeemptydirs="true">
             <fileset dir="sonar">
                 <include name="*/target/**"/>
@@ -972,8 +973,8 @@ under the License.
         </javac>
 
         <javac release="9"
-               srcdir="${basedir}/ooxml-schema/src/ooxml-full/java9"
+               srcdir="${basedir}/poi-ooxml-full/src/main/java9"
-               destdir="${basedir}/ooxml-schema/src/ooxml-full/java9"
+               destdir="${basedir}/poi-ooxml-full/src/main/java9"
                includeantruntime="false"
                fork="true"
                modulepath="lib/ooxml"
@@ -986,8 +987,8 @@ under the License.
         <jar destfile="${ooxml.xsds.jar}">
             <fileset dir="${ooxml-schema.output.dir}"/>
             <fileset dir="${ooxml-schema.output.gen-classes.dir}"/>
-            <zipfileset dir="${basedir}/ooxml-schema/src/ooxml-full/java9" prefix="META-INF/versions/9" excludes="*.java"/>
+            <zipfileset dir="${basedir}/poi-ooxml-full/src/main/java9" prefix="META-INF/versions/9" excludes="*.java"/>
-            <metainf dir="legal/"/>
+            <metainf dir="legal/" excludes="HEADER"/>
             <manifest>
                 <attribute name="Multi-Release" value="true"/>
                 <attribute name="Automatic-Module-Name" value="org.apache.poi.ooxml.schemas"/>
@@ -1004,8 +1005,8 @@ under the License.
 
         <jar destfile="${ooxml.xsds.src.jar}">
             <fileset dir="${ooxml-schema.output.gen-sources.dir}"/>
-            <zipfileset dir="${basedir}/ooxml-schema/src/ooxml-full/java9" prefix="META-INF/versions/9/" excludes="*.class"/>
+            <zipfileset dir="${basedir}/poi-ooxml-full/src/main/java9" prefix="META-INF/versions/9/" excludes="*.class"/>
-            <metainf dir="legal"/>
+            <metainf dir="legal" excludes="HEADER"/>
         </jar>
     </target>
 
@@ -1039,7 +1040,7 @@ under the License.
                 <string>@{module}</string>
                 <filterchain>
                     <prefixlines prefix="poi-"/>
-                    <replacestring from="poi-main" to="poi"/>
+                    <replacestring from="poi-poi" to="poi"/>
                 </filterchain>
             </loadresource>
 
@@ -1080,7 +1081,7 @@ under the License.
                 <zipfileset dir="${basedir}/@{module}/src/main/java9"
                             prefix="META-INF/versions/9"
                             excludes="*.java"/>
-                <metainf dir="legal/"/>
+                <metainf dir="legal/" excludes="HEADER"/>
                 <manifest>
                     <attribute name="Multi-Release" value="true"/>
                     <attribute name="Automatic-Module-Name" value="org.apache.poi.@{module}"/>
@@ -1139,7 +1140,7 @@ under the License.
                 <resources/>
                 <test-resources/>
                 <zipfileset dir="${basedir}/@{module}/src/test/java9" prefix="META-INF/versions/9" excludes="*.java"/>
-                <metainf dir="legal/"/>
+                <metainf dir="legal/" excludes="HEADER"/>
                 <manifest>
                     <attribute name="Multi-Release" value="true"/>
                     <attribute name="Automatic-Module-Name" value="org.apache.poi.@{module}"/>
@@ -1157,7 +1158,7 @@ under the License.
             <!-- create the sources jar -->
             <jar destfile="build/dist/maven/${maven-name}/${maven-name}-@{version}-sources.jar">
                 <fileset dir="@{java}"/>
-                <metainf dir="legal/"/>
+                <metainf dir="legal/" excludes="HEADER"/>
                 <manifest>
                     <attribute name="Built-By" value="${user.name}"/>
                     <attribute name="Specification-Title" value="Apache POI"/>
@@ -1173,12 +1174,13 @@ under the License.
     </macrodef>
 
     <target name="compile-main" depends="init, compile-version">
-        <compile-jar module="main"
+        <compile-jar module="poi"
             java="${main.src}" classes="${main.output.dir}"
             test="${main.src.test}" test-classes="${main.output.test.dir}">
             <lib>
                 <pathelement path="lib/main"/>
                 <pathelement path="lib/main-tests"/>
+                <pathelement path="lib/excelant"/>
             </lib>
             <resources>
                 <fileset dir="${main.resources.main}"/>
@@ -1190,7 +1192,7 @@ under the License.
     </target>
 
     <target name="compile-scratchpad" depends="compile-main">
-        <compile-jar module="scratchpad"
+        <compile-jar module="poi-scratchpad"
              java="${scratchpad.src}" classes="${scratchpad.output.dir}"
              test="${scratchpad.src.test}" test-classes="${scratchpad.output.test.dir}">
             <lib>
@@ -1208,7 +1210,7 @@ under the License.
     </target>
 
     <target name="compile-examples" depends="compile-main,compile-scratchpad,compile-ooxml">
-        <compile-jar module="examples"
+        <compile-jar module="poi-examples"
                      java="${examples.src}" classes="${examples.output.dir}">
             <lib>
                 <pathelement path="build/dist/maven/poi-ooxml-full"/>
@@ -1222,7 +1224,7 @@ under the License.
     </target>
 
     <target name="compile-ooxml" depends="compile-main,compile-scratchpad,compile-ooxml-xsds">
-        <compile-jar module="ooxml"
+        <compile-jar module="poi-ooxml"
              java="${ooxml.src}" classes="${ooxml.output.dir}"
              test="${ooxml.src.test}" test-classes="${ooxml.output.test.dir}">
             <lib>
@@ -1242,9 +1244,21 @@ under the License.
         </compile-jar>
 
         <!-- create ooxml-lite-agent jar -->
+        <mkdir dir="${ooxml.lite.output.dir}"/>
+        <javac release="8"
+               srcdir="${basedir}/poi-ooxml-lite-agent/src/main/java"
+               destdir="${ooxml.lite.output.dir}"
+               includeantruntime="false"
+               fork="true">
+            <classpath>
+                <fileset dir="${basedir}/lib/main-tests" includes="*.jar"/>
+                <fileset dir="${basedir}/lib/ooxml" includes="*.jar"/>
+            </classpath>
+        </javac>
+
         <javac release="9"
-               srcdir="${basedir}/ooxml/src/ooxml-lite-agent/java9"
+               srcdir="${basedir}/poi-ooxml-lite-agent/src/main/java9"
-               destdir="${basedir}/ooxml/src/ooxml-lite-agent/java9"
+               destdir="${basedir}/poi-ooxml-lite-agent/src/main/java9"
                includeantruntime="false"
                fork="true"
                modulepath="${basedir}/lib/main-tests"
@@ -1253,8 +1267,8 @@ under the License.
         </javac>
 
         <jar destfile="${ooxml.lite.agent}">
-            <fileset dir="${ooxml.output.test.dir}" includes="org/apache/poi/ooxml/lite/**"/>
+            <fileset dir="${ooxml.lite.output.dir}"/>
-            <zipfileset dir="${basedir}/ooxml/src/ooxml-lite-agent/java9" prefix="META-INF/versions/9" excludes="*.java"/>
+            <zipfileset dir="${basedir}/poi-ooxml-lite-agent/src/main/java9" prefix="META-INF/versions/9" excludes="*.java"/>
             <manifest>
                 <attribute name="Multi-Release" value="true"/>
                 <attribute name="Automatic-Module-Name" value="org.apache.poi.ooxml_lite"/>
@@ -1304,8 +1318,8 @@ under the License.
             </path>
 
 
-            <mkdir dir="excelant/build/poi-ant-contrib"/>
+            <mkdir dir="poi-excelant/build/poi-ant-contrib"/>
-            <javac srcdir="excelant/src/poi-ant-contrib/java" destdir="excelant/build/poi-ant-contrib"
+            <javac srcdir="poi-excelant/src/poi-ant-contrib/java" destdir="poi-excelant/build/poi-ant-contrib"
                    includeantruntime="true" includes="Junit5Progress.java" classpathref="junit-jars"/>
 
 
@@ -1340,7 +1354,7 @@ under the License.
                 <classpath>
                     <path refid="junit-jars" if:true="${isJava8}"/>
                     <fileset dir="${basedir}" includes="${cp_java}" if:true="${isJava8}"/>
-                    <pathelement location="excelant/build/poi-ant-contrib"/>
+                    <pathelement location="poi-excelant/build/poi-ant-contrib"/>
                 </classpath>
 
                 <testclasses outputDir="@{outputDir}">
@@ -1414,7 +1428,7 @@ under the License.
     </target>
 
     <target name="compile-excelant" depends="compile-main,compile-ooxml">
-        <compile-jar module="excelant"
+        <compile-jar module="poi-excelant"
             java="${excelant.src}" classes="${excelant.output.dir}"
             test="${excelant.src.test}" test-classes="${excelant.output.test.dir}">
             <lib>
@@ -1459,7 +1473,7 @@ under the License.
         <mkdir dir="${integration.output.test.dir}/META-INF/versions/9"/>
 
         <javac release="9"
-               srcdir="${basedir}/integrationtest/src/test/java9"
+               srcdir="${basedir}/poi-integration/src/test/java9"
                destdir="${integration.output.test.dir}/META-INF/versions/9"
                includeantruntime="false"
                fork="true"
@@ -1478,20 +1492,20 @@ under the License.
             </modulepath>
         </javac>
 
-        <manifest file="integrationtest/build/poi-manifest.mf">
+        <manifest file="poi-integration/build/poi-manifest.mf">
             <attribute name="Multi-Release" value="true"/>
             <attribute name="Automatic-Module-Name" value="org.apache.poi.stress"/>
         </manifest>
 
         <jar destfile="build/dist/maven/poi-integration/poi-integration-${version.id}.jar"
              basedir="${integration.output.test.dir}"
-             manifest="integrationtest/build/poi-manifest.mf"/>
+             manifest="poi-integration/build/poi-manifest.mf"/>
     </target>
 
     <target name="-version-java-check">
 		<!-- recompile Version.java from the template whenever source or the version in build.xml changes -->
         <uptodate property="version.java.notRequired" targetfile="${main.output.dir}/org/apache/poi/Version.class">
-            <srcfiles file="main/src/main/version/Version.java.template"/>
+            <srcfiles file="poi/src/main/version/Version.java.template"/>
             <srcfiles file="build.xml"/>
         </uptodate>
     </target>
@@ -1821,7 +1835,7 @@ under the License.
 
         <local name="full.schema"/>
         <loadresource property="full.schema">
-            <file file="${basedir}/ooxml-schema/src/ooxml-full/java9/module-info.java"/>
+            <file file="${basedir}/poi-ooxml-full/src/main/java9/module-info.java"/>
             <filterchain>
                 <linecontains negate="true" matchany="true">
                     <contains value="exports"/>
@@ -1830,11 +1844,11 @@ under the License.
             </filterchain>
         </loadresource>
 
-        <echo output="${basedir}/ooxml-schema/src/ooxml-lite/java9/module-info.java">${full.schema}${lite.exports}}</echo>
+        <echo output="${basedir}/poi-ooxml-lite/src/main/java9/module-info.java">${full.schema}${lite.exports}}</echo>
 
         <javac release="9"
-               srcdir="${basedir}/ooxml-schema/src/ooxml-lite/java9"
+               srcdir="${basedir}/poi-ooxml-lite/src/main/java9"
-               destdir="${basedir}/ooxml-schema/src/ooxml-lite/java9"
+               destdir="${basedir}/poi-ooxml-lite/src/main/java9"
                includeantruntime="false"
                fork="true"
                unless:true="${isJava8}">
@@ -1869,7 +1883,7 @@ under the License.
         <mkdir dir="build/dist/maven/poi-ooxml-lite"/>
 
         <jar destfile="${ooxml.lite.jar}" duplicate="fail">
-            <zipfileset dir="${basedir}/ooxml-schema/src/ooxml-lite/java9" prefix="META-INF/versions/9" excludes="*.java"/>
+            <zipfileset dir="${basedir}/poi-ooxml-lite/src/main/java9" prefix="META-INF/versions/9" excludes="*.java"/>
             <zipfileset src="${ooxml.xsds.jar}">
                 <patternset>
                     <includesfile name="${ooxml.lite.report}.clazz1"/>
@@ -2185,7 +2199,7 @@ under the License.
             <jar destfile="build/dist/maven/${destfile}.jar">
                 <fileset dir="@{src}" unless:true="${isjar}"/>
                 <zipfileset src="@{src}" if:true="${isjar}"/>
-                <metainf dir="legal/"/>
+                <metainf dir="legal/" excludes="HEADER"/>
                 <manifest>
                     <attribute name="Multi-Release" value="true"/>
                     <attribute name="Automatic-Module-Name" value="org.apache.poi.@{module}"/>
@@ -2261,7 +2275,7 @@ under the License.
             <jar destfile="${dist.dir}/maven/@{dest}/@{dest}-${version.id}-javadoc.jar"
                  manifest="build/poi-manifest.mf">
                 <fileset dir="${build.maven.javadocs}"/>
-                <metainf dir="legal/"/>
+                <metainf dir="legal/" excludes="HEADER"/>
             </jar>
         </sequential>
     </macrodef>
@@ -2280,7 +2294,7 @@ under the License.
         <property name="zipdir" value="${jar.name}-${version.id}"/>
 
         <mappedresources id="legal-files" cache="true">
-            <fileset dir="legal"/>
+            <fileset dir="legal" excludes="HEADER"/>
             <globmapper from="*" to="${zipdir}/*"/>
         </mappedresources>
 
@@ -2340,7 +2354,7 @@ under the License.
                       scripts/**,
                       TEST*,
                       *.ipr,
-                      *.iml,
+                      **/*.iml,
                       *.iws,
                       *.lnk,
                       *.rdf,
@@ -2437,24 +2451,24 @@ under the License.
              uri="antlib:org.apache.rat.anttasks"
              classpath="${rat.jar}" />
         <rat:report xmlns:rat="antlib:org.apache.rat.anttasks" reportFile="${rat.report}">
-            <fileset dir="examples/src" excludes="main/java/org/apache/poi/**/*-chart-data.txt"/>
+            <fileset dir="poi-examples/src" excludes="main/java/org/apache/poi/**/*-chart-data.txt"/>
-            <fileset dir="excelant/src"/>
+            <fileset dir="poi-excelant/src"/>
-            <fileset dir="integrationtest/src"/>
+            <fileset dir="poi-integration/src"/>
-            <fileset dir="main/src">
+            <fileset dir="poi/src">
                 <exclude name="main/resources/org/apache/poi/sl/draw/geom/presetShapeDefinitions.xml" />
             </fileset>
-            <fileset dir="ooxml/src">
+            <fileset dir="poi-ooxml/src">
                 <exclude name="main/resources/org/apache/poi/xslf/usermodel/notesMaster.xml" />
                 <exclude name="main/resources/org/apache/poi/xslf/usermodel/empty.pptx" />
                 <exclude name="main/resources/org/apache/poi/xssf/usermodel/presetTableStyles.xml" />
             </fileset>
-            <fileset dir="ooxml-schema/src">
+            <fileset dir="poi-ooxml-full/src">
                 <exclude name="main/xmlschema/org/apache/poi/xdgf/visio.xsd" />
                 <exclude name="main/xmlschema/org/apache/poi/schemas/XAdES*.xsd" />
                 <exclude name="main/xmlschema/org/apache/poi/schemas/xmldsig-core-schema.xsd" />
                 <exclude name="main/xmlschema/org/apache/poi/schemas/*.zip" />
             </fileset>
-            <fileset dir="scratchpad/src"/>
+            <fileset dir="poi-scratchpad/src"/>
 
             <fileset dir="src">
                 <exclude name="documentation/*.txt" />
@@ -2690,11 +2704,11 @@ under the License.
             <auxClasspath path="${pdf.pdfbox.jar}"/>
             <auxClasspath path="${pdf.fontbox.jar}"/>
             <auxClasspath path="${pdf.graphics2d.jar}"/>
-            <sourcePath path="main/src/main/java" />
+            <sourcePath path="poi/src/main/java" />
-            <sourcePath path="excelant/src/main/java" />
+            <sourcePath path="poi-excelant/src/main/java" />
-            <sourcePath path="examples/src/main/java" />
+            <sourcePath path="poi-examples/src/main/java" />
-            <sourcePath path="ooxml/src/main/java" />
+            <sourcePath path="poi-ooxml/src/main/java" />
-            <sourcePath path="scratchpad/src/main/java" />
+            <sourcePath path="poi-scratchpad/src/main/java" />
         </spotbugs>
 
         <!-- instead of calling findbugs again, we simply transform the xml -->
@@ -2920,7 +2934,7 @@ under the License.
             <format property="tstamp_next" pattern="yyyy-MM" offset="3" unit="month"/>
         </tstamp>
 
-        <taskdef name="NextRelease" classname="NextRelease" classpath="excelant/build/poi-ant-contrib"/>
+        <taskdef name="NextRelease" classname="NextRelease" classpath="poi-excelant/build/poi-ant-contrib"/>
         <NextRelease property="rel_next"/>
 
         <antcall target="-update-build.xml">
@@ -3044,7 +3058,7 @@ under the License.
         </tstamp>
 
 
-        <taskdef name="NextRelease" classname="NextRelease" classpath="excelant/build/poi-ant-contrib"/>
+        <taskdef name="NextRelease" classname="NextRelease" classpath="poi-excelant/build/poi-ant-contrib"/>
         <NextRelease property="rel_prev" increment="-1"/>
 
         <!-- we don't simply generate a new iso file date with tstamp,
@@ -3057,8 +3071,8 @@ under the License.
         </loadresource>
 
         <replaceregexp file="build.gradle" match="( +version += +)'[^']+'" replace="\1'${version.id}'"/>
-        <replaceregexp file="examples/src/main/groovy/build.gradle" match="( *compile 'org.apache.poi:[^0-9]+)([0-9.]+)'" replace="\1${rel_prev}'" byline="true"/>
+        <replaceregexp file="poi-examples/src/main/groovy/build.gradle" match="( *compile 'org.apache.poi:[^0-9]+)([0-9.]+)'" replace="\1${rel_prev}'" byline="true"/>
-        <replaceregexp file="examples/src/main/scala/build.sbt" match='( *org.apache.poi.* ")[0-9.]+(.+)' replace="\1${rel_prev}\2" byline="true"/>
+        <replaceregexp file="poi-examples/src/main/scala/build.sbt" match='( *org.apache.poi.* ")[0-9.]+(.+)' replace="\1${rel_prev}\2" byline="true"/>
         <replaceregexp file="osgi/pom.xml" match="version>${rel_prev}[^&lt;]+" replace="version>${version.id}"/>
         <replaceregexp file="doap_POI.rdf" match="&lt;release&gt;" replace="&lt;release&gt;&#10;      &lt;Version&gt;&#10;        &lt;name&gt;Apache POI ${rel_prev}&lt;/name&gt;&#10;        &lt;created&gt;${file_date_iso}&lt;/created&gt;&#10;        &lt;revision&gt;${rel_prev}&lt;/revision&gt;&#10;      &lt;/Version&gt;&#10;    &lt;/release&gt;&#10;    &lt;release&gt;"/>
 
@@ -3146,7 +3160,7 @@ under the License.
                 </filterchain>
             </loadfile>
 
-            <taskdef name="bytes2mega" classname="Bytes2Mega" classpath="excelant/build/poi-ant-contrib"/>
+            <taskdef name="bytes2mega" classname="Bytes2Mega" classpath="poi-excelant/build/poi-ant-contrib"/>
             <local name="fileSizeMb"/>
             <bytes2mega property="fileSizeMb" bytes="${fileSize}"/>
 

examples/build.gradle

@@ -1,26 +0,0 @@
-/* ====================================================================
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You 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.
-==================================================================== */
-
-dependencies {
-    implementation project(':ooxml')
-    implementation project(':scratchpad')
-
-    implementation "org.apache.logging.log4j:log4j-core:${log4jVersion}"
-
-	testImplementation project(path: ':ooxml', configuration: 'tests')
-	testImplementation project(path: ':main', configuration: 'tests')
-}

gradle.properties

@@ -0,0 +1,3 @@
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx4096m

integrationtest/build.gradle

@@ -1,37 +0,0 @@
-/* ====================================================================
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You 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.
-==================================================================== */
-
-dependencies {
-    testImplementation 'org.apache.ant:ant:1.10.9'
-
-    testImplementation project(':ooxml')
-    testImplementation project(':scratchpad')
-    testImplementation project(':examples')
-
-    testImplementation files(this.project(':ooxml').sourceSets.test.runtimeClasspath)
-}
-
-jar {
-    manifest {
-        attributes 'Automatic-Module-Name': 'org.apache.poi.integrationtest'
-    }
-}
-
-test {
-    // exclude these from the normal test-run
-    exclude '**/*FileHandler.class'
-}

legal/HEADER

@@ -1,4 +1,5 @@
-/* ====================================================================
+
+====================================================================
    Licensed to the Apache Software Foundation (ASF) under one or more
    contributor license agreements.  See the NOTICE file distributed with
    this work for additional information regarding copyright ownership.
@@ -13,18 +14,4 @@
    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.
-==================================================================== */
+====================================================================
-
-dependencies {
-    api 'org.apache.ant:ant:1.10.9'
-
-    api project(':ooxml')
-
-    testImplementation project(path: ':main', configuration: 'tests')
-}
-
-jar {
-    manifest {
-        attributes 'Automatic-Module-Name': 'org.apache.poi.excelant'
-    }
-}

main/build.gradle

@@ -1,48 +0,0 @@
-/* ====================================================================
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You 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.
-==================================================================== */
-
-dependencies {
-    implementation "commons-codec:commons-codec:${commonsCodecVersion}"
-    implementation 'org.apache.commons:commons-collections4:4.4'
-    implementation "org.apache.commons:commons-math3:${commonsMathVersion}"
-    implementation "org.apache.logging.log4j:log4j-api:${log4jVersion}"
-    implementation 'javax.activation:activation:1.1.1'
-    api 'com.zaxxer:SparseBitSet:1.2'
-
-    testImplementation 'org.reflections:reflections:0.9.12'
-}
-
-jar {
-    manifest {
-        attributes 'Automatic-Module-Name': 'org.apache.poi.main'
-    }
-}
-
-// Create a separate jar for test-code to depend on it in other projects
-// See http://stackoverflow.com/questions/5144325/gradle-test-dependency
-task testJar(type: Jar, dependsOn: testClasses) {
-    baseName = "test-${project.archivesBaseName}"
-    from sourceSets.test.output
-}
-
-configurations {
-    tests
-}
-
-artifacts {
-    tests testJar
-}

main/src/test/java/org/apache/poi/hssf/dev/BaseTestIteratingXLS.java

@@ -1,80 +0,0 @@
-/* ====================================================================
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You 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 org.apache.poi.hssf.dev;
-
-import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.Assertions.assertThrows;
-
-import java.io.File;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-import java.util.stream.Stream;
-
-import org.apache.poi.POIDataSamples;
-import org.junit.jupiter.params.ParameterizedTest;
-import org.junit.jupiter.params.provider.Arguments;
-import org.junit.jupiter.params.provider.MethodSource;
-
-/**
- * Base class for integration-style tests which iterate over all test-files
- * and execute the same action to find out if any change breaks these applications.
- */
-public abstract class BaseTestIteratingXLS {
-	protected static final Map<String,Class<? extends Throwable>> EXCLUDED = new HashMap<>();
-
-    private static Stream<Arguments> files() {
-        String dataDirName = System.getProperty(POIDataSamples.TEST_PROPERTY);
-        if(dataDirName == null) {
-            dataDirName = "test-data";
-        }
-
-        List<Arguments> files = new ArrayList<>();
-        findFile(files, dataDirName + "/spreadsheet");
-        findFile(files, dataDirName + "/hpsf");
-
-        return files.stream();
-    }
-
-    private static void findFile(List<Arguments> list, String dir) {
-        String[] files = new File(dir).list((arg0, arg1) -> arg1.toLowerCase(Locale.ROOT).endsWith(".xls"));
-        assertNotNull(files, "Did not find any xls files in directory " + dir);
-
-        for(String file : files) {
-            list.add(Arguments.of(new File(dir, file)));
-        }
-    }
-
-    @ParameterizedTest
-    @MethodSource("files")
-	void testMain(File file) throws Exception {
-	    String fileName = file.getName();
-
-	    Class<? extends Throwable> t = EXCLUDED.get(fileName);
-
-        if (t == null) {
-            runOneFile(file);
-        } else {
-            assertThrows(t, () -> runOneFile(file));
-        }
-
-	}
-
-	abstract void runOneFile(File pFile) throws Exception;
-}

main/src/test/java/org/apache/poi/hssf/dev/TestBiffDrawingToXml.java

@@ -1,58 +0,0 @@
-/* ====================================================================
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You 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 org.apache.poi.hssf.dev;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.InputStream;
-
-import org.apache.poi.EncryptedDocumentException;
-import org.apache.poi.hssf.OldExcelFormatException;
-import org.apache.poi.hssf.record.RecordInputStream;
-import org.apache.poi.util.NullOutputStream;
-import org.apache.poi.util.RecordFormatException;
-import org.junit.jupiter.api.BeforeAll;
-
-class TestBiffDrawingToXml extends BaseTestIteratingXLS {
-    @BeforeAll
-    public static void setup() {
-        EXCLUDED.clear();
-        EXCLUDED.put("35897-type4.xls", EncryptedDocumentException.class); // unsupported crypto api header
-        EXCLUDED.put("51832.xls", EncryptedDocumentException.class);
-        EXCLUDED.put("xor-encryption-abc.xls", EncryptedDocumentException.class);
-        EXCLUDED.put("password.xls", EncryptedDocumentException.class);
-        EXCLUDED.put("46904.xls", OldExcelFormatException.class);
-        EXCLUDED.put("59074.xls", OldExcelFormatException.class);
-        EXCLUDED.put("testEXCEL_2.xls", OldExcelFormatException.class);  // Biff 2 / Excel 2, pre-OLE2
-        EXCLUDED.put("testEXCEL_3.xls", OldExcelFormatException.class);  // Biff 3 / Excel 3, pre-OLE2
-        EXCLUDED.put("testEXCEL_4.xls", OldExcelFormatException.class);  // Biff 4 / Excel 4, pre-OLE2
-        EXCLUDED.put("testEXCEL_5.xls", OldExcelFormatException.class);  // Biff 5 / Excel 5
-        EXCLUDED.put("60284.xls", OldExcelFormatException.class); // Biff 5 / Excel 5
-        EXCLUDED.put("testEXCEL_95.xls", OldExcelFormatException.class); // Biff 5 / Excel 95
-        EXCLUDED.put("43493.xls", RecordInputStream.LeftoverDataException.class);  // HSSFWorkbook cannot open it as well
-        EXCLUDED.put("44958_1.xls", RecordInputStream.LeftoverDataException.class);
-        EXCLUDED.put("61300.xls", RecordFormatException.class);
-        EXCLUDED.put("64130.xls", OldExcelFormatException.class); // BIFF 5
-    }
-
-	@Override
-	void runOneFile(File pFile) throws Exception {
-        try (InputStream wb = new FileInputStream(pFile)) {
-            BiffDrawingToXml.writeToFile(new NullOutputStream(), wb, false, new String[0]);
-        }
-	}
-}

ooxml-schema/build.gradle

@@ -1,68 +0,0 @@
-/* ====================================================================
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You 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.
-==================================================================== */
-
-apply plugin: 'java'
-
-configurations {
-    antdep
-}
-
-dependencies {
-    antdep 'org.apache.ant:ant:1.10.9'
-}
-
-/*task downloadJarsToLibs() {
-    def f = new File("$projectDir/../lib/ooxml/xmlbeans-5.0.0.jar")
-    if (!f.exists()) {
-	println 'writing file ' + f.getAbsolutePath()
-	f.getParentFile().mkdirs()
-	new URL('https://ci-builds.apache.org/job/POI/job/POI-XMLBeans-DSL-1.8/lastSuccessfulBuild/artifact/build/xmlbeans-5.0.0.jar').withInputStream{ i -> f.withOutputStream{ it << i }}
-    }
-}*/
-
-// we need to ensure that the custom ant tasks are compiled before we import the build.xml file
-
-task compileContrib (type: JavaCompile) {
-    source = "../excelant/src/poi-ant-contrib/java"
-    include '*.java'
-    exclude 'Junit5Progress.java'
-    classpath = configurations.antdep
-    destinationDirectory = file('../excelant/build/poi-ant-contrib')
-}
-
-
-// for now import the ant-task for building the jars from build.xml
-// we need to rename the tasks as e.g. task "jar" conflicts with :ooxml:jar
-
-ant.importBuild('../build.xml') { antTargetName ->
-    'ant-' + antTargetName
-}
-
-compileJava.dependsOn 'compileContrib'
-compileJava.dependsOn 'ant-compile-ooxml-xsds'
-
-//compileJava.dependsOn 'downloadJarsToLibs'
-
-dependencies {
-    api "org.apache.xmlbeans:xmlbeans:${xmlbeansVersion}"
-}
-
-jar {
-    manifest {
-        attributes 'Automatic-Module-Name': 'org.apache.poi.ooxml.schemas'
-    }
-}

ooxml/build.gradle

@@ -1,66 +0,0 @@
-/* ====================================================================
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You 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.
-==================================================================== */
-
-dependencies {
-    api project(":ooxml-schema")
-    implementation 'org.apache.commons:commons-collections4:4.4'
-    api "org.apache.commons:commons-compress:${commonsCompressVersion}"
-    api 'org.apache.santuario:xmlsec:2.2.1'
-    api "org.bouncycastle:bcpkix-jdk15on:${bouncyCastleVersion}"
-    api 'com.github.virtuald:curvesapi:1.06'
-    implementation "org.apache.logging.log4j:log4j-api:${log4jVersion}"
-
-    api "org.apache.xmlgraphics:batik-svggen:${batikVersion}"
-    implementation("org.apache.xmlgraphics:batik-bridge:${batikVersion}") {
-        exclude group: 'org.apache.xmlgraphics', module: 'batik-script'
-    }
-    implementation "org.apache.xmlgraphics:batik-codec:${batikVersion}"
-
-    api 'de.rototor.pdfbox:graphics2d:0.30'
-
-    api project(':main')
-    api files("../build/dist/maven/poi-ooxml-full/poi-ooxml-full-${version}.jar")
-
-    testRuntime project(':scratchpad')
-    testImplementation 'org.xmlunit:xmlunit-core:2.8.0'
-    testImplementation 'org.reflections:reflections:0.9.12'
-    testImplementation project(path: ':main', configuration: 'tests')
-    testImplementation 'org.openjdk.jmh:jmh-core:1.26'
-    testImplementation 'org.openjdk.jmh:jmh-generator-annprocess:1.26'
-    testImplementation 'com.google.guava:guava:30.0-jre'
-}
-
-jar {
-    manifest {
-        attributes 'Automatic-Module-Name': 'org.apache.poi.ooxml'
-    }
-}
-
-// Create a separate jar for test-code to depend on it in other projects
-// See http://stackoverflow.com/questions/5144325/gradle-test-dependency
-task testJar(type: Jar, dependsOn: testClasses) {
-	baseName = "test-${project.archivesBaseName}"
-	from sourceSets.test.output
-}
-
-configurations {
-	tests
-}
-
-artifacts {
-	tests testJar
-}

poi-examples/build.gradle

@@ -0,0 +1,99 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You 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.
+==================================================================== */
+
+import java.util.regex.Pattern
+
+plugins {
+    id 'java'
+    id 'maven-publish'
+    id 'java-library'
+}
+
+final String JAVA9_SRC = 'src/main/java9'
+final String JAVA9_OUT = "${buildDir}/classes/java9/main/"
+final String VERSIONS9 = 'META-INF/versions/9'
+
+sourceSets {
+    main {
+        if (JavaVersion.current() != JavaVersion.VERSION_1_8) {
+            output.dir(JAVA9_OUT, builtBy: 'cacheJava9')
+        }
+    }
+}
+
+
+dependencies {
+    api project(':poi-ooxml')
+    api project(':poi-scratchpad')
+    implementation project(path: ':poi-ooxml', configuration: 'archives')
+    implementation project(path: ':poi-ooxml-full', configuration: 'archives')
+    implementation project(path: ':poi-scratchpad', configuration: 'archives')
+
+    implementation "org.apache.logging.log4j:log4j-core:${log4jVersion}"
+
+	testImplementation project(path: ':ooxml', configuration: 'tests')
+	testImplementation project(path: ':main', configuration: 'tests')
+}
+
+final String MODULE_NAME = 'org.apache.poi.examples'
+final Pattern MODULE_REGEX = ~'\\.jar$'
+final List MAIN_MODULE_PATH = sourceSets.main.runtimeClasspath.findAll{ it.path =~ MODULE_REGEX }.collect{ it.parent }.unique()
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+    withSourcesJar()
+}
+
+task compileJava9(type: JavaCompile) {
+    dependsOn 'compileJava', ':poi-ooxml:jar', ':poi-scratchpad:jar'
+
+    sourceCompatibility = 9
+    targetCompatibility = 9
+    destinationDirectory = file(JAVA9_OUT + VERSIONS9)
+    source = file(JAVA9_SRC)
+    classpath = files()
+    options.compilerArgs = [
+        '--patch-module', "${MODULE_NAME}=${sourceSets.main.output.classesDirs.asPath}",
+        '--module-path', files(MAIN_MODULE_PATH).asPath
+    ]
+}
+
+task cacheJava9(type: Copy) {
+    dependsOn 'compileJava9'
+
+    from(file(JAVA9_OUT + VERSIONS9))
+    into(JAVA9_SRC)
+}
+
+jar {
+    destinationDirectory = file("../build/dist/maven/${project.archivesBaseName}")
+
+    if (JavaVersion.current() == JavaVersion.VERSION_1_8) {
+        into('META-INF/versions/9') {
+            from JAVA9_SRC include '*.class'
+        }
+    }
+
+    manifest {
+        attributes('Automatic-Module-Name': MODULE_NAME, 'Multi-Release': 'true')
+    }
+}
+
+sourcesJar {
+    destinationDirectory = file("../build/dist/maven/${project.archivesBaseName}")
+}