#1909: create commandlet for mvnd

CHANGELOG.adoc

@@ -6,6 +6,7 @@ This file documents all notable changes to https://github.com/devonfw/IDEasy[IDE
 
 Release with new features and bugfixes:
 
+* https://github.com/devonfw/IDEasy/issues/1909[#1909]: add commandlet for Maven Daemon
 
 The full list of changes for this release can be found in https://github.com/devonfw/IDEasy/milestone/46?closed=1[milestone 2026.07.001].
 

cli/src/main/java/com/devonfw/tools/ide/commandlet/CommandletManagerImpl.java

@@ -8,8 +8,6 @@
 import java.util.Map;
 import java.util.NoSuchElementException;
 
-import com.devonfw.tools.ide.tool.inso.Inso;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -37,6 +35,7 @@
 import com.devonfw.tools.ide.tool.gradle.Gradle;
 import com.devonfw.tools.ide.tool.gui.Gui;
 import com.devonfw.tools.ide.tool.helm.Helm;
+import com.devonfw.tools.ide.tool.inso.Inso;
 import com.devonfw.tools.ide.tool.intellij.Intellij;
 import com.devonfw.tools.ide.tool.jasypt.Jasypt;
 import com.devonfw.tools.ide.tool.java.Java;
@@ -45,8 +44,9 @@
 import com.devonfw.tools.ide.tool.kotlinc.KotlincNative;
 import com.devonfw.tools.ide.tool.kubectl.KubeCtl;
 import com.devonfw.tools.ide.tool.lazydocker.LazyDocker;
-import com.devonfw.tools.ide.tool.mvn.Mvn;
 import com.devonfw.tools.ide.tool.msvc.Msvc;
+import com.devonfw.tools.ide.tool.mvn.Mvn;
+import com.devonfw.tools.ide.tool.mvnd.Mvnd;
 import com.devonfw.tools.ide.tool.nest.Nest;
 import com.devonfw.tools.ide.tool.ng.Ng;
 import com.devonfw.tools.ide.tool.node.Node;
@@ -172,6 +172,7 @@ public CommandletManagerImpl(IdeContext context) {
     add(new Nest(context));
     add(new Cdk(context));
     add(new Claude(context));
+    add(new Mvnd(context));
   }
 
   /**

cli/src/main/java/com/devonfw/tools/ide/tool/mvn/MavenCommandlet.java

@@ -0,0 +1,75 @@
+package com.devonfw.tools.ide.tool.mvn;
+
+
+import java.util.Set;
+
+
+import com.devonfw.tools.ide.common.Tag;
+import com.devonfw.tools.ide.completion.AutoCompletionRegistry;
+import com.devonfw.tools.ide.context.IdeContext;
+import com.devonfw.tools.ide.tool.LocalToolCommandlet;
+
+
+/**
+ * Abstract base class for Maven-compatible tool commandlets.
+ */
+public abstract class MavenCommandlet extends LocalToolCommandlet {
+
+
+  /**
+   * The constructor.
+   *
+   * @param context the {@link IdeContext}.
+   * @param tool the name of the tool.
+   */
+  protected MavenCommandlet(IdeContext context, String tool) {
+
+    super(context, tool, Set.of(Tag.JAVA, Tag.BUILD));
+  }
+
+  /**
+   * Initializes common Maven auto-completion candidates.
+   *
+   * @param registry the {@link AutoCompletionRegistry} to initialize.
+   */
+  @Override
+  protected void initAutoCompletionRegistry(AutoCompletionRegistry registry) {
+
+    registry.add("clean");
+    registry.add("package");
+    registry.add("install");
+    registry.add("deploy");
+    registry.add("test");
+    registry.add("verify");
+    registry.add("validate");
+    registry.add("compile");
+    registry.add("dependency:tree");
+    registry.add("dependency:list");
+    registry.add("help:effective-settings");
+    registry.add("-DskipTests");
+    registry.add("-Dmaven.test.skip=true");
+    registry.add("exec:java");
+    registry.add("-Dexec.mainClass=");
+    registry.add("-Dexec.args=");
+    registry.add("-P");
+    registry.add("-pl");
+    registry.add("-am");
+    registry.add("-amd");
+    registry.add("--also-make");
+    registry.add("--also-make-dependents");
+    registry.add("--fail-at-end");
+    registry.add("--fail-fast");
+    registry.add("-T1C");
+    registry.add("-q");
+    registry.add("-X");
+    registry.add("-e");
+    registry.add("-U");
+    registry.add("-o");
+    registry.add("-f");
+    registry.add("-s");
+    registry.add("-rf");
+    registry.add("-DdeployAtEnd=true");
+  }
+}
+
+

cli/src/main/java/com/devonfw/tools/ide/tool/mvn/Mvn.java

@@ -13,25 +13,23 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.devonfw.tools.ide.common.Tag;
-import com.devonfw.tools.ide.completion.AutoCompletionRegistry;
 import com.devonfw.tools.ide.context.IdeContext;
 import com.devonfw.tools.ide.git.GitContext;
 import com.devonfw.tools.ide.io.FileAccess;
 import com.devonfw.tools.ide.process.ProcessContext;
 import com.devonfw.tools.ide.process.ProcessMode;
 import com.devonfw.tools.ide.process.ProcessResult;
 import com.devonfw.tools.ide.step.Step;
-import com.devonfw.tools.ide.tool.LocalToolCommandlet;
 import com.devonfw.tools.ide.tool.ToolCommandlet;
 import com.devonfw.tools.ide.tool.ToolInstallRequest;
 import com.devonfw.tools.ide.variable.IdeVariables;
 import com.devonfw.tools.ide.variable.VariableSyntax;
 
+
 /**
  * {@link ToolCommandlet} for <a href="https://maven.apache.org/">maven</a>.
  */
-public class Mvn extends LocalToolCommandlet {
+public class Mvn extends MavenCommandlet {
 
   private static final Logger LOG = LoggerFactory.getLogger(Mvn.class);
 
@@ -70,39 +68,9 @@ public class Mvn extends LocalToolCommandlet {
    */
   public Mvn(IdeContext context) {
 
-    super(context, "mvn", Set.of(Tag.JAVA, Tag.BUILD));
+    super(context, "mvn");
   }
 
-  /**
-   * Initializes Maven-specific auto-completion candidates.
-   *
-   * @param registry the {@link AutoCompletionRegistry} to initialize.
-   */
-  @Override
-  protected void initAutoCompletionRegistry(AutoCompletionRegistry registry) {
-
-    registry.add("clean");
-    registry.add("package");
-    registry.add("install");
-    registry.add("deploy");
-    registry.add("test");
-    registry.add("verify");
-    registry.add("validate");
-    registry.add("compile");
-    registry.add("dependency:tree");
-    registry.add("dependency:list");
-    registry.add("help:effective-settings");
-    registry.add("-DskipTests");
-    registry.add("exec:java");
-    registry.add("-Dexec.mainClass=");
-    registry.add("-Dexec.args=");
-    registry.add("--also-make");
-    registry.add("--also-make-dependents");
-    registry.add("--fail-at-end");
-    registry.add("--fail-fast");
-    registry.add("-T1C");
-    registry.add("-DdeployAtEnd=true");
-  }
 
   @Override
   protected void configureToolBinary(ProcessContext pc, ProcessMode processMode) {

cli/src/main/java/com/devonfw/tools/ide/tool/mvnd/Mvnd.java

@@ -0,0 +1,86 @@
+package com.devonfw.tools.ide.tool.mvnd;
+
+
+import com.devonfw.tools.ide.completion.AutoCompletionRegistry;
+import com.devonfw.tools.ide.context.IdeContext;
+import com.devonfw.tools.ide.tool.ToolCommandlet;
+import com.devonfw.tools.ide.tool.mvn.MavenCommandlet;
+
+/**
+ * {@link ToolCommandlet} for <a href="https://maven.apache.org/tools/mvnd.html/">maven daemon</a>.
+ */
+public class Mvnd extends MavenCommandlet {
+
+  /**
+   * The constructor.
+   *
+   * @param context the {@link IdeContext}.
+   */
+  public Mvnd(IdeContext context) {
+
+    super(context, "mvnd");
+  }
+
+  /**
+   * Initializes Maven Daemon-specific auto-completion candidates.
+   *
+   * @param registry the {@link AutoCompletionRegistry} to initialize.
+   */
+  @Override
+  protected void initAutoCompletionRegistry(AutoCompletionRegistry registry) {
+
+    super.initAutoCompletionRegistry(registry);
+    registry.add("--status");
+    registry.add("--stop");
+    registry.add("--purge");
+    registry.add("--completion");
+    registry.add("--diag");
+    registry.add("--file");
+    registry.add("-Djava.home=");
+    registry.add("-Djdk.java.options=");
+    registry.add("-Dmaven.multiModuleProjectDirectory=");
+    registry.add("-Dmaven.repo.local=");
+    registry.add("--settings");
+    registry.add("-Dmvnd.buildTime=");
+    registry.add("--builder");
+    registry.add("-Dmvnd.cancelConnectTimeout=");
+    registry.add("-Dmvnd.connectTimeout=");
+    registry.add("-Dmvnd.coreExtensionsExclude=");
+    registry.add("-Dmvnd.daemonStorage=");
+    registry.add("-Dmvnd.debug=");
+    registry.add("-Dmvnd.debug.address=");
+    registry.add("-Dmvnd.duplicateDaemonGracePeriod=");
+    registry.add("-Dmvnd.enableAssertions=");
+    registry.add("-Dmvnd.expirationCheckDelay=");
+    registry.add("-Dmvnd.home=");
+    registry.add("-Dmvnd.idleTimeout=");
+    registry.add("-Dmvnd.jvmArgs=");
+    registry.add("-Dmvnd.keepAlive=");
+    registry.add("-Dmvnd.logPurgePeriod=");
+    registry.add("-Dmvnd.maxHeapSize=");
+    registry.add("-Dmvnd.maxLostKeepAlive=");
+    registry.add("-Dmvnd.minHeapSize=");
+    registry.add("-Dmvnd.minThreads=");
+    registry.add("-Dmvnd.noBuffering=");
+    registry.add("-Dmvnd.noDaemon=");
+    registry.add("-Dmvnd.noModelCache=");
+    registry.add("-Dmvnd.pluginRealmEvictPattern=");
+    registry.add("-Dmvnd.propertiesPath=");
+    registry.add("--raw-streams");
+    registry.add("-Dmvnd.registry=");
+    registry.add("-Dmvnd.rollingWindowSize=");
+    registry.add("--serial");
+    registry.add("-Dmvnd.socketConnectTimeout=");
+    registry.add("-Dmvnd.socketFamily=");
+    registry.add("-Dmvnd.threadStackSize=");
+    registry.add("--threads");
+    registry.add("-Dstyle.color=");
+    registry.add("-Duser.dir=");
+    registry.add("-Duser.home=");
+  }
+
+  @Override
+  public String getToolHelpArguments() {
+    return "--help";
+  }
+}

cli/src/main/resources/nls/Help.properties

@@ -91,6 +91,8 @@ cmd.msvc=Tool commandlet for MSVC (Microsoft Visual C++ Build Tools).
 cmd.msvc.detail=MSVC provides the C++ compiler and build tools required by Rust on Windows. Detailed documentation can be found at https://visualstudio.microsoft.com/visual-cpp-build-tools/
 cmd.mvn=Tool commandlet for Maven (Build-Tool).
 cmd.mvn.detail=Apache Maven is a build automation and dependency management tool for Java projects. Detailed documentation can be found at https://maven.apache.org/guides/index.html
+cmd.mvnd=Tool commandlet for Maven Daemon (Performance Wrapper for Maven).
+cmd.mvnd.detail=The Maven Daemon (mvnd) is a daemon infrastructure for Maven that helps to reduce the build time. Detailed documentation can be found at https://maven.apache.org/tools/mvnd.html
 cmd.nest=Tool commandlet for Nest CLI.
 cmd.nest.detail=The Nest CLI is a command-line interface tool that helps you to initialize, develop, and maintain your Nest applications. Detailed documentation can be found at https://docs.nestjs.com/cli/overview
 cmd.ng=Tool commandlet for Angular CLI.

cli/src/main/resources/nls/Help_de.properties

@@ -91,6 +91,8 @@ cmd.msvc=Werkzeug Kommando für MSVC (Microsoft Visual C++ Build-Werkzeuge).
 cmd.msvc.detail=MSVC stellt den C++ Compiler und Build-Werkzeuge bereit, die von Rust unter Windows benötigt werden. Detaillierte Dokumentation ist zu finden unter https://visualstudio.microsoft.com/visual-cpp-build-tools/
 cmd.mvn=Werkzeug Kommando für Maven (Build-Werkzeug).
 cmd.mvn.detail=Apache Maven ist ein Build-Automatisierungs- und Abhängigkeitsverwaltungstool für Java-Projekte. Detaillierte Dokumentation ist zu finden unter https://maven.apache.org/guides/index.html
+cmd.mvnd=Werkzeug Kommando für Maven Daemon (Performance-Wrapper für Maven).
+cmd.mvnd.detail=Maven Daemon (mvnd) ist ein Performance-Wrapper für Apache Maven, der die Build-Zeit durch die Verwendung eines Daemon-Prozesses erheblich reduziert. Detaillierte Dokumentation ist zu finden unter https://maven.apache.org/tools/mvnd.html
 cmd.nest=Werkzeug Kommando für Nest CLI.
 cmd.nest.detail=Die Nest CLI ist ein Command‑Line‑Interface‑Tool zur Initialisierung, Entwicklung und Wartung von Nest‑Anwendungen. Detaillierte Dokumentation ist zu finden unter https://docs.nestjs.com/cli/overview
 cmd.ng=Werkzeug Kommando für Angular CLI.

cli/src/test/java/com/devonfw/tools/ide/completion/CompleteTest.java

@@ -302,4 +302,40 @@ void testCompleteMavenToolArgumentsForEmptyInput() {
     assertThat(candidates.stream().map(CompletionCandidate::text))
         .contains("clean", "package", "install", "dependency:list", "dependency:tree", "-DskipTests");
   }
+
+  /**
+   * Test of tool argument auto-completion for Maven Daemon.
+   */
+  @Test
+  void testCompleteMavenDaemonToolArguments() {
+
+    // arrange
+    AbstractIdeContext context = newContext(PROJECT_BASIC, null, false);
+    CliArguments args = CliArguments.ofCompletion("mvnd", "-Dmvnd.c");
+
+    // act
+    List<CompletionCandidate> candidates = context.complete(args, true);
+
+    // assert
+    assertThat(candidates.stream().map(CompletionCandidate::text))
+        .contains("-Dmvnd.cancelConnectTimeout=", "-Dmvnd.connectTimeout=", "-Dmvnd.coreExtensionsExclude=");
+  }
+
+  /**
+   * Test of Maven Daemon tool argument auto-completion for empty input.
+   */
+  @Test
+  void testCompleteMavenDaemonToolArgumentsForEmptyInput() {
+
+    // arrange
+    AbstractIdeContext context = newContext(PROJECT_BASIC, null, false);
+    CliArguments args = CliArguments.ofCompletion("mvnd", "");
+
+    // act
+    List<CompletionCandidate> candidates = context.complete(args, true);
+
+    // assert
+    assertThat(candidates.stream().map(CompletionCandidate::text))
+        .contains("--purge", "--settings", "--completion", "dependency:list", "dependency:tree", "-DskipTests");
+  }
 }

cli/src/test/java/com/devonfw/tools/ide/completion/IdeCompleterTest.java

@@ -49,7 +49,7 @@ void testIdeCompleterBatch() {
   void testIdeCompleterInstall() {
 
     this.reader.setCompleter(newCompleter());
-    assertBuffer("install mvn ", new TestBuffer("install mv").tab());
+    assertBuffer("install mvn", new TestBuffer("install mv").tab());
   }
 
   /**
@@ -59,7 +59,7 @@ void testIdeCompleterInstall() {
   void testIdeCompleterHelpWithToolCompletion() {
 
     this.reader.setCompleter(newCompleter());
-    assertBuffer("help mvn ", new TestBuffer("help mv").tab().tab());
+    assertBuffer("help mvn", new TestBuffer("help mv").tab().tab());
   }
 
   /**
@@ -126,7 +126,7 @@ void testIdeCompleterWithInvalidInputDoesNothing() {
   void testIdeCompleterHandlesOptionsBeforeCommand() {
 
     this.reader.setCompleter(newCompleter());
-    assertBuffer("get-version mvn ", new TestBuffer("get-version mv").tab().tab());
+    assertBuffer("get-version mvn", new TestBuffer("get-version mv").tab().tab());
   }
 
   /**