apache · desruisseaux · Nov 2, 2025 · Jul 19, 2025 · Jul 19, 2025 · Oct 26, 2025
diff --git a/src/it/CHANGES_v3_to_v4.md b/src/it/CHANGES_v3_to_v4.md
@@ -0,0 +1,74 @@
+<!---
+ 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.
+-->
+
+# Changes in integration tests since Maven 3
+This section describes noticeable changes in the tests of Maven Compiler Plugin 4
+compared to the tests of Maven Compiler Plugin 3.
+The purpose of this section is to help the port of new tests added to the Maven Compiler Plugin 3
+by documenting which tests to ignore and what to modify in new tests.
+
+## Changes in POM parameters
+Moved or added the following configuration parameters in the `pom.xml` files of some tests:
+
+* The `<outputDirectory>` and `<testOutputDirectory>` parameters declared under `<configuration>`
+  moved to `<build>`, because those properties are read-only in the configuration.
+* Many `<source>` and `<target>` parameters have been either removed or replaced by `<release>`.
+* For some tests using a non-modular JAR in a modular project,
+ `<type>modular-jar</type>` has been added in the dependency declaration.
+
+## Changes to met new plugin assumptions
+The plugin incremental compilation algorithm depends on the convention that
+Java source files are located in directories of the same name as their package names,
+with the `.` separator replaced by path separator (`/` or `\`).
+This is a very common convention, but not strictly required by the Java compiler.
+For example, if the `src/main/java/MyCode.java` file contains the `package foo` statement,
+the compiled class will be located in `target/classes/foo/MyCode.class` — note the `foo` additional directory.
+In such case, the incremental build algorithm will not track correctly the changes.
+The following tests have been made compliant with the convention for allowing the algorithm to work:
+
+* `mcompiler-182` in integration tests.
+
+Note that due to [MCOMPILER-209](https://jira.codehaus.org/browse/MCOMPILER-209),
+the old algorithm was compiling everything without really detecting change.
+So this issue is maybe not really a regression.
+To reproduce the old behavior, users can just disable the incremental compilation.
+
+## Removed integration tests
+The tests in the following directories were already disabled and have been removed:
+
+* `MCOMPILER-197` because it ran only on Java 8 while the build now requires Java 17.
+* `groovy-project-with-new-plexus-compiler` because it ran only on Java 8 and the plexus compiler has been removed.
+
+The tests in the following directores are not supported anymore and have been removed:
+
+* `release-without-profile` because the plugin no longer try to chose automatically
+   which parameters to use between `--source` and `--release`. This is justified by
+   the fact that the plugin cannot run on Java 8.
+* `release-without-profile-fork` for the same reason as above.
+* `MCOMPILER-190`, which has been replaced by `MCOMPILER-609`.
+  They are compilation tests using the Eclipse compiler, but the former test depended on Nexus.
+  It has been replaced by a test that depends on `javax.tools`.
+
+
+## Removed JUnit tests
+Removed the following directories and associated test methods:
+
+* `compiler-one-output-file-test2` because it was redundant with `compiler-one-output-file-test`.
+
+The only difference was the addition of include/exclude filters, but that difference had
+no effect because the compiler mock used in this test was ignoring all sources anyway.
+This test has been replaced by `compiler-modular-project`.
diff --git a/src/it/MCOMPILER-157/annotation-processor/pom.xml b/src/it/MCOMPILER-157/annotation-processor/pom.xml
@@ -21,7 +21,7 @@ under the License.
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
-    <groupId>org.issue</groupId>
+    <groupId>org.apache.maven.plugins.compiler.it</groupId>
     <artifactId>compiler-test</artifactId>
     <version>1.0-SNAPSHOT</version>
   </parent>

diff --git a/src/it/MCOMPILER-157/annotation-user/pom.xml b/src/it/MCOMPILER-157/annotation-user/pom.xml
@@ -21,7 +21,7 @@ under the License.
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
-    <groupId>org.issue</groupId>
+    <groupId>org.apache.maven.plugins.compiler.it</groupId>
     <artifactId>compiler-test</artifactId>
     <version>1.0-SNAPSHOT</version>
   </parent>
@@ -30,7 +30,7 @@ under the License.
 
   <dependencies>
     <dependency>
-      <groupId>org.issue</groupId>
+      <groupId>org.apache.maven.plugins.compiler.it</groupId>
       <artifactId>annotation-processor</artifactId>
       <version>1.0-SNAPSHOT</version>
       <scope>provided</scope>

diff --git a/src/it/MCOMPILER-157/pom.xml b/src/it/MCOMPILER-157/pom.xml
@@ -20,7 +20,7 @@ under the License.
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>org.issue</groupId>
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
   <artifactId>compiler-test</artifactId>
   <version>1.0-SNAPSHOT</version>
   <packaging>pom</packaging>

diff --git a/src/it/MCOMPILER-192/pom.xml b/src/it/MCOMPILER-192/pom.xml
@@ -18,11 +18,10 @@ specific language governing permissions and limitations
 under the License.
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>blah</groupId>
-  <artifactId>blah</artifactId>
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
+  <artifactId>MCOMPILER-192</artifactId>
   <version>1.0</version>
   <packaging>jar</packaging>
 
@@ -34,7 +33,7 @@ under the License.
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>@pom.version@</version>
+        <version>@project.version@</version>
         <configuration>
           <fork>true</fork>
           <includes>

diff --git a/src/it/MCOMPILER-192/verify.groovy b/src/it/MCOMPILER-192/verify.groovy
@@ -25,7 +25,7 @@ def causedByExpected = content.contains ( 'Caused by: org.apache.maven.plugin.co
 def twoFilesBeingCompiled = content.contains ( 'Compiling all files' )
 def checkResult = content.contains ( 'BUILD FAILURE' )
 def compilationFailure1 = content.contains( '[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:')
-def compilationFailure2 = content.contains( ':compile (default-compile) on project blah: Cannot compile')
+def compilationFailure2 = content.contains( ':compile (default-compile) on project MCOMPILER-192: Cannot compile')
 
 println "Jenkins: causedByExpected:${causedByExpected} twoFilesBeingCompiled:${twoFilesBeingCompiled} checkResult: ${checkResult} compilationFailure1: ${compilationFailure1} compilationFailure2: ${compilationFailure2}"
 

diff --git a/src/it/MCOMPILER-203-processorpath/annotation-processor/pom.xml b/src/it/MCOMPILER-203-processorpath/annotation-processor/pom.xml
@@ -21,7 +21,7 @@ under the License.
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
-    <groupId>org.issue</groupId>
+    <groupId>org.apache.maven.plugins.compiler.it</groupId>
     <artifactId>compiler-test</artifactId>
     <version>1.0-SNAPSHOT</version>
   </parent>

diff --git a/src/it/MCOMPILER-203-processorpath/annotation-user/pom.xml b/src/it/MCOMPILER-203-processorpath/annotation-user/pom.xml
@@ -21,7 +21,7 @@ under the License.
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
-    <groupId>org.issue</groupId>
+    <groupId>org.apache.maven.plugins.compiler.it</groupId>
     <artifactId>compiler-test</artifactId>
     <version>1.0-SNAPSHOT</version>
   </parent>
@@ -52,7 +52,7 @@ under the License.
           </annotationProcessors>
           <annotationProcessorPaths>
             <path>
-              <groupId>org.issue</groupId>
+              <groupId>org.apache.maven.plugins.compiler.it</groupId>
               <artifactId>annotation-processor</artifactId>
               <version>1.0-SNAPSHOT</version>
             </path>

diff --git a/src/it/MCOMPILER-203-processorpath/pom.xml b/src/it/MCOMPILER-203-processorpath/pom.xml
@@ -20,7 +20,7 @@ under the License.
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>org.issue</groupId>
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
   <artifactId>compiler-test</artifactId>
   <version>1.0-SNAPSHOT</version>
   <packaging>pom</packaging>

diff --git a/src/it/MCOMPILER-205/pom.xml b/src/it/MCOMPILER-205/pom.xml
@@ -18,11 +18,10 @@ specific language governing permissions and limitations
 under the License.
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>blah</groupId>
-  <artifactId>blah</artifactId>
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
+  <artifactId>MCOMPILER-205</artifactId>
   <version>1.0</version>
   <packaging>jar</packaging>
 
@@ -34,7 +33,7 @@ under the License.
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>@pom.version@</version>
+        <version>@project.version@</version>
         <configuration>
           <createMissingPackageInfoClass>true</createMissingPackageInfoClass>
         </configuration>

diff --git a/src/it/MCOMPILER-224/annotation-processor/pom.xml b/src/it/MCOMPILER-224/annotation-processor/pom.xml
@@ -21,7 +21,7 @@ under the License.
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
-    <groupId>org.issue</groupId>
+    <groupId>org.apache.maven.plugins.compiler.it</groupId>
     <artifactId>compiler-test</artifactId>
     <version>1.0-SNAPSHOT</version>
   </parent>

diff --git a/src/it/MCOMPILER-224/annotation-user/pom.xml b/src/it/MCOMPILER-224/annotation-user/pom.xml
@@ -21,7 +21,7 @@ under the License.
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
-    <groupId>org.issue</groupId>
+    <groupId>org.apache.maven.plugins.compiler.it</groupId>
     <artifactId>compiler-test</artifactId>
     <version>1.0-SNAPSHOT</version>
   </parent>
@@ -30,7 +30,7 @@ under the License.
 
   <dependencies>
     <dependency>
-      <groupId>org.issue</groupId>
+      <groupId>org.apache.maven.plugins.compiler.it</groupId>
       <artifactId>annotation-processor</artifactId>
       <version>1.0-SNAPSHOT</version>
       <scope>provided</scope>
@@ -50,7 +50,7 @@ under the License.
         </configuration>
         <dependencies>
           <dependency>
-            <groupId>org.issue</groupId>
+            <groupId>org.apache.maven.plugins.compiler.it</groupId>
             <artifactId>annotation-processor</artifactId>
             <version>1.0-SNAPSHOT</version>
           </dependency>

diff --git a/src/it/MCOMPILER-224/pom.xml b/src/it/MCOMPILER-224/pom.xml
@@ -20,7 +20,7 @@ under the License.
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>org.issue</groupId>
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
   <artifactId>compiler-test</artifactId>
   <version>1.0-SNAPSHOT</version>
   <packaging>pom</packaging>

diff --git a/src/it/MCOMPILER-228/pom.xml b/src/it/MCOMPILER-228/pom.xml
@@ -20,7 +20,7 @@ under the License.
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>org.apache.maven.plugins.compiler.its</groupId>
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
   <artifactId>mcompiler228</artifactId>
   <version>1.0-SNAPSHOT</version>
 

diff --git a/...272/processor1/src/main/resources/META-INF/services/javax.annotation.processing.Processor b/...272/processor1/src/main/resources/META-INF/services/javax.annotation.processing.Processor
@@ -5,9 +5,9 @@
 # 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

diff --git a/...272/processor2/src/main/resources/META-INF/services/javax.annotation.processing.Processor b/...272/processor2/src/main/resources/META-INF/services/javax.annotation.processing.Processor
@@ -5,9 +5,9 @@
 # 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

diff --git a/src/it/MCOMPILER-346/pom.xml b/src/it/MCOMPILER-346/pom.xml
@@ -19,7 +19,8 @@
   -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
-  <groupId>com.basilcrow</groupId>
+
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
   <artifactId>MCOMPILER-346-mre</artifactId>
   <version>1.0</version>
   <packaging>jar</packaging>

diff --git a/src/it/MCOMPILER-373_mrjar/pom.xml b/src/it/MCOMPILER-373_mrjar/pom.xml
@@ -20,7 +20,7 @@ under the License.
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>org.maven.bug</groupId>
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
   <artifactId>mcompiler373</artifactId>
   <version>1.0-SNAPSHOT</version>
 

diff --git a/src/it/MCOMPILER-481-requires-static-included/app/pom.xml b/src/it/MCOMPILER-481-requires-static-included/app/pom.xml
@@ -21,15 +21,15 @@ under the License.
 
   <modelVersion>4.0.0</modelVersion>
   <parent>
-    <groupId>org.example</groupId>
+    <groupId>org.apache.maven.plugins.compiler.it</groupId>
     <artifactId>compiler-bug</artifactId>
     <version>1.0-SNAPSHOT</version>
   </parent>
   <artifactId>compiler-bug-app</artifactId>
 
   <dependencies>
     <dependency>
-      <groupId>org.example</groupId>
+      <groupId>org.apache.maven.plugins.compiler.it</groupId>
       <artifactId>compiler-bug-service</artifactId>
       <version>1.0-SNAPSHOT</version>
     </dependency>

diff --git a/src/it/MCOMPILER-481-requires-static-included/pom.xml b/src/it/MCOMPILER-481-requires-static-included/pom.xml
@@ -19,7 +19,8 @@ under the License.
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
-  <groupId>org.example</groupId>
+
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
   <artifactId>compiler-bug</artifactId>
   <version>1.0-SNAPSHOT</version>
   <packaging>pom</packaging>

diff --git a/src/it/MCOMPILER-481-requires-static-included/service/pom.xml b/src/it/MCOMPILER-481-requires-static-included/service/pom.xml
@@ -21,7 +21,7 @@ under the License.
 
   <modelVersion>4.0.0</modelVersion>
   <parent>
-    <groupId>org.example</groupId>
+    <groupId>org.apache.maven.plugins.compiler.it</groupId>
     <artifactId>compiler-bug</artifactId>
     <version>1.0-SNAPSHOT</version>
   </parent>

diff --git a/src/it/MCOMPILER-485/pom.xml b/src/it/MCOMPILER-485/pom.xml
@@ -18,11 +18,10 @@ specific language governing permissions and limitations
 under the License.
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>blah</groupId>
-  <artifactId>blah</artifactId>
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
+  <artifactId>MCOMPILER-485</artifactId>
   <version>1.0</version>
   <packaging>jar</packaging>
 
@@ -34,7 +33,7 @@ under the License.
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>@pom.version@</version>
+        <version>@project.version@</version>
         <configuration>
           <createMissingPackageInfoClass>true</createMissingPackageInfoClass>
         </configuration>

diff --git a/src/it/MCOMPILER-495/pom.xml b/src/it/MCOMPILER-495/pom.xml
@@ -21,8 +21,8 @@ under the License.
 
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>blah</groupId>
-  <artifactId>blah</artifactId>
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
+  <artifactId>MCOMPILER-495</artifactId>
   <version>1.0</version>
   <packaging>jar</packaging>
 
@@ -34,7 +34,7 @@ under the License.
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>@pom.version@</version>
+        <version>@project.version@</version>
         <configuration>
           <createMissingPackageInfoClass>true</createMissingPackageInfoClass>
         </configuration>

diff --git a/src/it/MCOMPILER-500-package-info-incr/pom.xml b/src/it/MCOMPILER-500-package-info-incr/pom.xml
@@ -18,10 +18,9 @@ specific language governing permissions and limitations
 under the License.
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>org.apache.maven.plugins</groupId>
+  <groupId>org.apache.maven.plugins.compiler.it</groupId>
   <artifactId>maven-compiler-plugin-it-package-info-incr</artifactId>
   <version>1.0.0-SNAPSHOT</version>
   <packaging>jar</packaging>
@@ -34,7 +33,7 @@ under the License.
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>@pom.version@</version>
+        <version>@project.version@</version>
         <configuration>
           <createMissingPackageInfoClass>false</createMissingPackageInfoClass>
           <incrementalExcludes>