Remove support for japicmp from Gradle build

I now spent a few hours trying to make it work and the Gradle support is
simply not production-ready and also not maintained, it triggers various
strange errors and does not supporting the usual Gradle conventions.

So I do not want to spend more time on it, feel free to revive it if you know how
to make this work properly.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1888138 13f79535-47bb-0310-9956-ffa450edef68

build.gradle

@@ -20,8 +20,6 @@ buildscript {
     }
 
     dependencies {
-        // 2.x fails with "Could not get unknown property 'me'"
-        classpath 'me.champeau.gradle:japicmp-gradle-plugin:0.1.2'
         classpath "org.sonarsource.scanner.gradle:sonarqube-gradle-plugin:3.0"
     }
 }
@@ -88,16 +86,12 @@ subprojects {
     apply plugin: 'java-library'
     apply plugin: 'jacoco'
 
-    // See https://github.com/melix/japicmp-gradle-plugin
-    apply plugin: 'me.champeau.gradle.japicmp'
-
     version = '5.0.1-SNAPSHOT'
     ext {
         bouncyCastleVersion = '1.68'
         commonsCodecVersion = '1.15'
         commonsCompressVersion = '1.20'
         commonsMathVersion = '3.6.1'
-        japicmpversion = '5.0.0'
         junitVersion = '5.7.0'
         log4jVersion = '2.14.0'
         mockitoVersion = '3.6.0'
@@ -204,13 +198,4 @@ subprojects {
             }
         }
     }
-
-    task(japicmp, type: me.champeau.gradle.ArtifactJapicmpTask, dependsOn: jar) {
-        to = jar.archivePath
-        onlyModified = true
-        onlyBinaryIncompatibleModified = true
-        failOnModification = false
-        txtOutputFile = file("$buildDir/reports/japi.txt")
-        htmlOutputFile = file("$buildDir/reports/japi.html")
-    }
 }

build.xml

@@ -3057,7 +3057,6 @@ under the License.
         </loadresource>
 
         <replaceregexp file="build.gradle" match="( +version += +)'[^']+'" replace="\1'${version.id}'"/>
-        <replaceregexp file="build.gradle" match="(japicmpversion += +)'[^']+'" replace="\1'${rel_prev}'"/>
         <replaceregexp file="examples/src/main/groovy/build.gradle" match="( *compile 'org.apache.poi:[^0-9]+)([0-9.]+)'" replace="\1${rel_prev}'" byline="true"/>
         <replaceregexp file="examples/src/main/scala/build.sbt" match='( *org.apache.poi.* ")[0-9.]+(.+)' replace="\1${rel_prev}\2" byline="true"/>
         <replaceregexp file="osgi/pom.xml" match="version>${rel_prev}[^&lt;]+" replace="version>${version.id}"/>

examples/build.gradle

@@ -21,5 +21,3 @@ dependencies {
 
     implementation "org.apache.logging.log4j:log4j-core:${log4jVersion}"
 }
-
-japicmp.enabled = false

excelant/build.gradle

@@ -28,5 +28,3 @@ jar {
         attributes 'Automatic-Module-Name': 'org.apache.poi.excelant'
     }
 }
-
-japicmp.baseline = "org.apache.poi:poi-excelant:${japicmpversion}@jar"

integrationtest/build.gradle

@@ -35,5 +35,3 @@ test {
     // exclude these from the normal test-run
     exclude '**/*FileHandler.class'
 }
-
-japicmp.enabled = false

jenkins/create_jobs.groovy

@@ -56,7 +56,8 @@ def poijobs = [
         ],
         [ name: 'POI-DSL-regenerate-javadoc', trigger: triggerSundays, javadoc: true
         ],
-        [ name: 'POI-DSL-API-Check', trigger: '@daily', apicheck: true
+        // it was impossible to make this run stable in Gradle, thus disabling this for now
+        [ name: 'POI-DSL-API-Check', trigger: '@daily', apicheck: true, disabled: true
         ],
         [ name: 'POI-DSL-Gradle', trigger: triggerSundays, email: 'centic@apache.org', gradle: true,
           // Gradle will not run any tests if the code is up-to-date, therefore manually mark the files as updated
@@ -381,23 +382,6 @@ poijobs.each { poijob ->
                 }
                 mailer(email, false, false)
             }
-        } else if (poijob.apicheck) {
-            steps {
-                shellEx(delegate, shellcmds, poijob)
-                gradle {
-                    tasks('japicmp')
-                    useWrapper(true)
-                }
-            }
-            publishers {
-                archiveArtifacts('build/*/build/reports/japi.html')
-                if (!poijob.skipcigame) {
-                    configure { project ->
-                        project / publishers << 'hudson.plugins.cigame.GamePublisher' {}
-                    }
-                }
-                mailer(email, false, false)
-            }
         } else if(poijob.sonar) {
             steps {
                 shellEx(delegate, shellcmds, poijob)

main/build.gradle

@@ -46,5 +46,3 @@ configurations {
 artifacts {
     tests testJar
 }
-
-japicmp.baseline = "org.apache.poi:poi:${japicmpversion}@jar"

ooxml-schema/build.gradle

@@ -66,5 +66,3 @@ jar {
         attributes 'Automatic-Module-Name': 'org.apache.poi.ooxml.schemas'
     }
 }
-
-japicmp.baseline = "org.apache.poi:poi:${japicmpversion}@jar"

ooxml/build.gradle

@@ -50,8 +50,6 @@ jar {
     }
 }
 
-japicmp.baseline = "org.apache.poi:poi:${japicmpversion}@jar"
-
 test {
     // for some reason catching the OOM does not work when run from Gradle
     exclude '**/MemoryUsage.class'

scratchpad/build.gradle

@@ -29,5 +29,3 @@ jar {
         attributes 'Automatic-Module-Name': 'org.apache.poi.scratchpad'
     }
 }
-
-japicmp.baseline = "org.apache.poi:poi:${japicmpversion}@jar"