Maven 3.x support

Author: cstamas

.github/dependabot.yml

@@ -0,0 +1,30 @@
+# 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.
+
+version: 2
+updates:
+  - package-ecosystem: "maven"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    ignore:
+      # ignore Maven Core updates
+      - dependency-name: "org.apache.maven:*"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/maven-verify.yml

@@ -24,4 +24,4 @@ on:
 jobs:
   build:
     name: Verify
-    uses: apache/maven-gh-actions-shared/.github/workflows/maven-verify.yml@v3
+    uses: apache/maven-gh-actions-shared/.github/workflows/maven-verify.yml@v4

maven-plugin-testing-harness/pom.xml

@@ -23,19 +23,23 @@ under the License.
   <parent>
     <groupId>org.apache.maven.plugin-testing</groupId>
     <artifactId>maven-plugin-testing</artifactId>
-    <version>4.0.0-alpha-3-SNAPSHOT</version>
+    <version>3.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-testing-harness</artifactId>
   <name>Maven Plugin Testing Mechanism</name>
   <description>The Maven Plugin Testing Harness provides mechanisms to manage tests on Mojo.</description>
 
+  <properties>
+    <wagonVersion>3.5.3</wagonVersion>
+  </properties>
+
   <dependencyManagement>
     <dependencies>
       <dependency>
         <groupId>org.junit</groupId>
         <artifactId>junit-bom</artifactId>
-        <version>5.10.0</version>
+        <version>5.10.2</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
@@ -46,7 +50,7 @@ under the License.
     <!-- maven -->
     <dependency>
       <groupId>org.apache.maven</groupId>
-      <artifactId>maven-api-core</artifactId>
+      <artifactId>maven-artifact</artifactId>
       <version>${mavenVersion}</version>
       <scope>provided</scope>
     </dependency>
@@ -74,30 +78,69 @@ under the License.
       <version>${mavenVersion}</version>
       <scope>provided</scope>
     </dependency>
+    <dependency>
+      <groupId>org.apache.maven.wagon</groupId>
+      <artifactId>wagon-provider-api</artifactId>
+      <version>${wagonVersion}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.maven.wagon</groupId>
+      <artifactId>wagon-file</artifactId>
+      <version>${wagonVersion}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.maven.wagon</groupId>
+      <artifactId>wagon-http</artifactId>
+      <version>${wagonVersion}</version>
+      <scope>provided</scope>
+    </dependency>
+    <!--
+    Keep this one as isolated as possible.
+    But has to be present, as Maven 3 object graph is incomplete without it
+    -->
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-compat</artifactId>
+      <version>${mavenVersion}</version>
+      <scope>runtime</scope>
+      <exclusions>
+        <exclusion>
+          <groupId>*</groupId>
+          <artifactId>*</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
 
     <!-- plexus -->
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-utils</artifactId>
-      <version>4.0.0</version>
+      <version>4.0.1</version>
     </dependency>
     <dependency>
       <!-- correct version must be provided by project depends on Maven version -->
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-xml</artifactId>
-      <version>4.0.0</version>
+      <version>4.0.3</version>
       <optional>true</optional>
     </dependency>
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-archiver</artifactId>
-      <version>4.8.0</version>
+      <version>4.9.2</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-compress</artifactId>
+      <version>1.26.1</version>
     </dependency>
 
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-testing</artifactId>
-      <version>1.1.0</version>
+      <version>1.3.0</version>
       <exclusions>
         <exclusion>
           <!-- we need as optional dependencies -->
@@ -110,7 +153,7 @@ under the License.
       <!-- newer version is required by plexus-testing -->
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>32.0.1-jre</version>
+      <version>33.2.0-jre</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>