Bump Checkstyle from 10.22.0 to 10.23.0

Bump Exec from 1.0.4 to 1.0.5
Bump PMD from 1.2.1 to 1.2.2

.github/workflows/bld.yml

@@ -1,14 +1,16 @@
 name: bld-ci
 
-on: [push, pull_request, workflow_dispatch]
+on: [ push, pull_request, workflow_dispatch ]
 
 jobs:
   build-bld-project:
-    runs-on: ubuntu-latest
-
     strategy:
       matrix:
-        java-version: [17, 21, 22]
+        java-version: [ 17, 21, 24 ]
+        kotlin-version: [ 1.9.25, 2.0.21, 2.1.20 ]
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
+
+    runs-on: ${{ matrix.os }}
 
     steps:
       - name: Checkout source repository
@@ -22,8 +24,16 @@ jobs:
           distribution: "zulu"
           java-version: ${{ matrix.java-version }}
 
+      - name: Download dependencies [examples]
+        working-directory: examples
+        run: ./bld download
+
+      - name: Compile and Run Checkstyle [examples]
+        working-directory: examples
+        run: ./bld compile checkstyle-custom
+
       - name: Download dependencies
         run: ./bld download
 
       - name: Run tests
-        run: ./bld compile test
+        run: ./bld compile test

.github/workflows/pages.yml

@@ -47,11 +47,11 @@ jobs:
         uses: actions/configure-pages@v3
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
+        uses: actions/upload-pages-artifact@v3
         with:
           # Upload generated Javadocs repository
           path: "build/javadoc/"
 
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v1
+        uses: actions/deploy-pages@v4

.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Erik's Code Style" />
+  </state>
+</component>

.idea/icon.svg

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg width="100%" height="100%" viewBox="0 0 179 108" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2;">
+    <g transform="matrix(1,0,0,1,-210.511,-96.3382)">
+        <g transform="matrix(1,0,0,1,-23.3386,-649.816)">
+            <g transform="matrix(0.221288,0,0,0.24,73.9536,390.254)">
+                <path d="M722.568,1482.92L722.568,1921.1L808.968,1921.1L808.968,1888.7C822.168,1907.9 846.168,1930.1 893.568,1930.1C933.168,1930.1 961.968,1917.5 985.368,1893.5C1012.97,1865.9 1027.37,1827.5 1027.37,1786.1C1027.37,1741.7 1011.17,1705.1 985.368,1680.5C961.968,1658.3 928.968,1644.5 892.368,1644.5C862.968,1644.5 830.568,1654.1 808.968,1683.5L808.968,1482.92L722.568,1482.92ZM871.368,1718.9C888.768,1718.9 903.768,1723.7 917.568,1736.9C930.168,1748.9 938.568,1766.3 938.568,1787.9C938.568,1807.7 930.168,1825.1 917.568,1837.1C904.368,1849.7 887.568,1855.7 872.568,1855.7C856.368,1855.7 837.168,1849.1 823.368,1835.9C813.168,1826.3 803.568,1810.1 803.568,1787.9C803.568,1765.1 812.568,1749.5 822.768,1738.7C836.568,1724.3 852.768,1718.9 871.368,1718.9Z" style="fill:rgb(35,146,255);fill-rule:nonzero;"/>
+                <rect x="1083.77" y="1482.92" width="86.4" height="438.182" style="fill:rgb(250,144,82);fill-rule:nonzero;"/>
+                <path d="M1531.37,1482.92L1444.97,1482.92L1444.97,1683.5C1423.37,1654.1 1390.97,1644.5 1361.57,1644.5C1324.97,1644.5 1291.97,1658.3 1268.57,1680.5C1242.77,1705.1 1226.57,1741.7 1226.57,1786.1C1226.57,1827.5 1240.97,1865.9 1268.57,1893.5C1291.97,1917.5 1320.77,1930.1 1360.37,1930.1C1407.77,1930.1 1431.77,1907.9 1444.97,1888.7L1444.97,1921.1L1531.37,1921.1L1531.37,1482.92ZM1382.57,1718.9C1401.17,1718.9 1417.37,1724.3 1431.17,1738.7C1441.37,1749.5 1450.37,1765.1 1450.37,1787.9C1450.37,1810.1 1440.77,1826.3 1430.57,1835.9C1416.77,1849.1 1397.57,1855.7 1381.37,1855.7C1366.37,1855.7 1349.57,1849.7 1336.37,1837.1C1323.77,1825.1 1315.37,1807.7 1315.37,1787.9C1315.37,1766.3 1323.77,1748.9 1336.37,1736.9C1350.17,1723.7 1365.17,1718.9 1382.57,1718.9Z" style="fill:rgb(35,146,255);fill-rule:nonzero;"/>
+            </g>
+        </g>
+    </g>
+</svg>

.idea/libraries/bld.xml

@@ -2,12 +2,12 @@
   <library name="bld">
     <CLASSES>
       <root url="file://$PROJECT_DIR$/lib/bld" />
-      <root url="jar://$USER_HOME$/.bld/dist/bld-2.0.1.jar!/" />
+      <root url="jar://$USER_HOME$/.bld/dist/bld-2.2.1.jar!/" />
     </CLASSES>
     <JAVADOC />
     <SOURCES>
       <root url="file://$PROJECT_DIR$/lib/bld" />
-      <root url="jar://$USER_HOME$/.bld/dist/bld-2.0.1-sources.jar!/" />
+      <root url="jar://$USER_HOME$/.bld/dist/bld-2.2.1-sources.jar!/" />
     </SOURCES>
     <excluded>
       <root url="jar://$PROJECT_DIR$/lib/bld/bld-wrapper.jar!/" />

.idea/libraries/compile.xml

@@ -7,7 +7,7 @@
     <SOURCES>
       <root url="file://$PROJECT_DIR$/lib/compile" />
     </SOURCES>
-    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" />
-    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" type="SOURCES" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="true" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="true" type="SOURCES" />
   </library>
 </component>

.idea/libraries/runtime.xml

@@ -8,7 +8,7 @@
     <SOURCES>
       <root url="file://$PROJECT_DIR$/lib/runtime" />
     </SOURCES>
-    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" />
-    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" type="SOURCES" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="true" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="true" type="SOURCES" />
   </library>
 </component>

.idea/libraries/test.xml

@@ -8,7 +8,7 @@
     <SOURCES>
       <root url="file://$PROJECT_DIR$/lib/test" />
     </SOURCES>
-    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" />
-    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" type="SOURCES" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="true" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="true" type="SOURCES" />
   </library>
 </component>

.vscode/settings.json

@@ -9,7 +9,7 @@
     ],
     "java.configuration.updateBuildConfiguration": "automatic",
     "java.project.referencedLibraries": [
-        "${HOME}/.bld/dist/bld-2.0.1.jar",
+        "${HOME}/.bld/dist/bld-2.2.1.jar",
         "lib/**/*.jar"
     ],
     "java.compile.nullAnalysis.mode": "automatic"

README.md

@@ -2,12 +2,20 @@
 
 [![License](https://img.shields.io/badge/license-Apache%20License%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 [![Java](https://img.shields.io/badge/java-17%2B-blue)](https://www.oracle.com/java/technologies/javase/jdk17-archive-downloads.html)
-[![bld](https://img.shields.io/badge/2.0.1-FA9052?label=bld&labelColor=2392FF)](https://rife2.com/bld)
+[![bld](https://img.shields.io/badge/2.2.1-FA9052?label=bld&labelColor=2392FF)](https://rife2.com/bld)
 [![Release](https://flat.badgen.net/maven/v/metadata-url/repo.rife2.com/releases/com/uwyn/rife2/bld-checkstyle/maven-metadata.xml?color=blue)](https://repo.rife2.com/#/releases/com/uwyn/rife2/bld-checkstyle)
 [![Snapshot](https://flat.badgen.net/maven/v/metadata-url/repo.rife2.com/snapshots/com/uwyn/rife2/bld-checkstyle/maven-metadata.xml?label=snapshot)](https://repo.rife2.com/#/snapshots/com/uwyn/rife2/bld-checkstyle)
 [![GitHub CI](https://github.com/rife2/bld-checkstyle/actions/workflows/bld.yml/badge.svg)](https://github.com/rife2/bld-checkstyle/actions/workflows/bld.yml)
 
-To install, please refer to the [extensions documentation](https://github.com/rife2/bld/wiki/Extensions).
+To install the latest version, add the following to the `lib/bld/bld-wrapper.properties` file:
+
+```properties
+bld.extension-checkstyle=com.uwyn.rife2:bld-checkstyle
+```
+
+For more information, please refer to the [extensions](https://github.com/rife2/bld/wiki/Extensions) documentation.
+
+## Check Source Code with Checkstyle
 
 To check your code with Chesktyle, include the following in your build file:
 
@@ -37,5 +45,5 @@ not provided by the extension. For example:
 
 ```java
 repositories = List.of(MAVEN_CENTRAL);
-scope(test).include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 18, 0)));
+scope(test).include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 23, 0)));
 ```

config/pmd.xml

@@ -7,9 +7,9 @@
     <!-- BEST PRACTICES -->
     <rule ref="category/java/bestpractices.xml">
         <exclude name="AvoidPrintStackTrace"/>
-        <exclude name="JUnit4TestShouldUseTestAnnotation"/>
-        <exclude name="JUnitTestContainsTooManyAsserts"/>
         <exclude name="GuardLogStatement"/>
+        <exclude name="UnitTestContainsTooManyAsserts"/>
+        <exclude name="UnitTestShouldUseTestAnnotation"/>
     </rule>
 
     <rule ref="category/java/bestpractices.xml/MissingOverride">

examples/.idea/libraries/bld.xml

@@ -2,12 +2,12 @@
   <library name="bld">
     <CLASSES>
       <root url="file://$PROJECT_DIR$/lib/bld" />
-      <root url="jar://$USER_HOME$/.bld/dist/bld-2.0.1.jar!/" />
+      <root url="jar://$USER_HOME$/.bld/dist/bld-2.2.1.jar!/" />
     </CLASSES>
     <JAVADOC />
     <SOURCES>
       <root url="file://$PROJECT_DIR$/lib/bld" />
-      <root url="jar://$USER_HOME$/.bld/dist/bld-2.0.1-sources.jar!/" />
+      <root url="jar://$USER_HOME$/.bld/dist/bld-2.2.1-sources.jar!/" />
     </SOURCES>
     <excluded>
       <root url="jar://$PROJECT_DIR$/lib/bld/bld-wrapper.jar!/" />

examples/.idea/libraries/compile.xml

@@ -7,7 +7,7 @@
     <SOURCES>
       <root url="file://$PROJECT_DIR$/lib/compile" />
     </SOURCES>
-    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" />
-    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" type="SOURCES" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="true" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="true" type="SOURCES" />
   </library>
 </component>

examples/.idea/libraries/runtime.xml

@@ -8,7 +8,7 @@
     <SOURCES>
       <root url="file://$PROJECT_DIR$/lib/runtime" />
     </SOURCES>
-    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" />
-    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" type="SOURCES" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="true" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="true" type="SOURCES" />
   </library>
 </component>

examples/.idea/libraries/test.xml

@@ -8,7 +8,7 @@
     <SOURCES>
       <root url="file://$PROJECT_DIR$/lib/test" />
     </SOURCES>
-    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" />
-    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" type="SOURCES" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="true" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="true" type="SOURCES" />
   </library>
 </component>

examples/.vscode/settings.json

@@ -9,7 +9,7 @@
     ],
     "java.configuration.updateBuildConfiguration": "automatic",
     "java.project.referencedLibraries": [
-        "${HOME}/.bld/dist/bld-2.0.1.jar",
+        "${HOME}/.bld/dist/bld-2.2.1.jar",
         "lib/**/*.jar"
     ]
 }

examples/lib/bld/bld-wrapper.properties

@@ -1,7 +1,7 @@
 bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
 bld.downloadLocation=
-bld.extension-checkstyle=com.uwyn.rife2:bld-checkstyle:1.0.3
+bld.extension-checkstyle=com.uwyn.rife2:bld-checkstyle:1.0.14
 bld.repositories=MAVEN_LOCAL,MAVEN_CENTRAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
 bld.sourceDirectories=
-bld.version=2.0.1
+bld.version=2.2.1

examples/src/bld/java/com/example/ExamplesBuild.java

@@ -5,6 +5,9 @@ import rife.bld.BuildCommand;
 import rife.bld.extension.CheckstyleOperation;
 
 import java.util.List;
+import java.util.logging.ConsoleHandler;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import static rife.bld.dependencies.Repository.MAVEN_CENTRAL;
 import static rife.bld.dependencies.Scope.*;
@@ -20,19 +23,29 @@ public class ExamplesBuild extends BaseProject {
 
         autoDownloadPurge = true;
         downloadSources = true;
-        
+
         repositories = List.of(MAVEN_CENTRAL);
 
-        scope(test).include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 18, 0)));
+        scope(test).include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 23, 0)));
 
         testOperation().mainClass("com.example.ExamplesTest");
     }
 
     public static void main(String[] args) {
+        // Enable detailed logging for the extensions
+        var level = Level.ALL;
+        var logger = Logger.getLogger("rife.bld.extension");
+        var consoleHandler = new ConsoleHandler();
+
+        consoleHandler.setLevel(level);
+        logger.addHandler(consoleHandler);
+        logger.setLevel(level);
+        logger.setUseParentHandlers(false);
+
         new ExamplesBuild().start(args);
     }
 
-    @BuildCommand(summary = "Check code style")
+    @BuildCommand(summary = "Check code style using Sun coding conventions")
     public void checkstyle() throws Exception {
         new CheckstyleOperation()
                 .fromProject(this)
@@ -40,4 +53,11 @@ public class ExamplesBuild extends BaseProject {
                 .execute();
     }
 
+    @BuildCommand(value = "checkstyle-custom", summary = "Check code style using custom coding conventions")
+    public void checkstyleCustom() throws Exception {
+        new CheckstyleOperation()
+                .fromProject(this)
+                .configurationFile("src/test/resources/checkstyle.xml")
+                .execute();
+    }
 }

examples/src/test/resources/checkstyle.xml

@@ -0,0 +1,10 @@
+<!DOCTYPE module PUBLIC
+  "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+  "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+<module name="Checker">
+    <module name="TreeWalker">
+        <module name="AvoidStarImport">
+            <property name="severity" value="warning" />
+        </module>
+    </module>
+</module>

lib/bld/bld-wrapper.properties

@@ -1,8 +1,8 @@
 bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
 bld.downloadLocation=
-bld.extension-exec=com.uwyn.rife2:bld-exec:1.0.2
-bld.extension-pmd=com.uwyn.rife2:bld-pmd:1.1.4
+bld.extension-exec=com.uwyn.rife2:bld-exec:1.0.5
+bld.extension-pmd=com.uwyn.rife2:bld-pmd:1.2.2
 bld.repositories=MAVEN_CENTRAL,MAVEN_LOCAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
 bld.sourceDirectories=
-bld.version=2.0.1
+bld.version=2.2.1

src/bld/java/rife/bld/extension/CheckstyleOperationBuild.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,7 @@ import rife.bld.publish.PublishLicense;
 import rife.bld.publish.PublishScm;
 
 import java.util.List;
+import java.util.Locale;
 
 import static rife.bld.dependencies.Repository.*;
 import static rife.bld.dependencies.Scope.compile;
@@ -33,20 +34,23 @@ public class CheckstyleOperationBuild extends Project {
     public CheckstyleOperationBuild() {
         pkg = "rife.bld.extension";
         name = "CheckstyleOperation";
-        version = version(1, 0, 3);
+        version = version(1, 0, 15, "SNAPSHOT");
 
         javaRelease = 17;
+
         downloadSources = true;
         autoDownloadPurge = true;
+
         repositories = List.of(MAVEN_LOCAL, MAVEN_CENTRAL, RIFE2_RELEASES, RIFE2_SNAPSHOTS);
 
         scope(compile)
-                .include(dependency("com.uwyn.rife2", "bld", version(2, 0, 1)));
+                .include(dependency("com.uwyn.rife2", "bld", version(2, 2, 1)));
         scope(test)
-                .include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 18, 0)))
-                .include(dependency("org.junit.jupiter", "junit-jupiter", version(5, 11, 0)))
-                .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1, 11, 0)))
-                .include(dependency("org.assertj", "assertj-core", version(3, 26, 3)));
+                .include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 23, 0)))
+                .include(dependency("org.junit.jupiter", "junit-jupiter", version(5, 12, 1)))
+                .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1, 12, 1)))
+                .include(dependency("org.assertj", "assertj-core", version(3, 27, 3)));
+
         javadocOperation()
                 .javadocOptions()
                 .author()
@@ -56,28 +60,26 @@ public class CheckstyleOperationBuild extends Project {
 
         publishOperation()
                 .repository(version.isSnapshot() ? repository("rife2-snapshot") : repository("rife2"))
+                .repository(repository("github"))
                 .info()
                 .groupId("com.uwyn.rife2")
                 .artifactId("bld-checkstyle")
                 .description("bld Checkstyle Extension")
                 .url("https://github.com/rife2/bld-checkstyle")
-                .developer(
-                        new PublishDeveloper()
-                                .id("ethauvin")
-                                .name("Erik C. Thauvin")
-                                .email("erik@thauvin.net")
-                                .url("https://erik.thauvin.net/")
+                .developer(new PublishDeveloper()
+                        .id("ethauvin")
+                        .name("Erik C. Thauvin")
+                        .email("erik@thauvin.net")
+                        .url("https://erik.thauvin.net/")
                 )
-                .license(
-                        new PublishLicense()
-                                .name("The Apache License, Version 2.0")
-                                .url("https://www.apache.org/licenses/LICENSE-2.0.txt")
+                .license(new PublishLicense()
+                        .name("The Apache License, Version 2.0")
+                        .url("https://www.apache.org/licenses/LICENSE-2.0.txt")
                 )
-                .scm(
-                        new PublishScm()
-                                .connection("scm:git:https://github.com/rife2/bld-checkstyle.git")
-                                .developerConnection("scm:git:git@github.com:rife2/bld-checkstyle.git")
-                                .url("https://github.com/rife2/bld-checkstyle")
+                .scm(new PublishScm()
+                        .connection("scm:git:https://github.com/rife2/bld-checkstyle.git")
+                        .developerConnection("scm:git:git@github.com:rife2/bld-checkstyle.git")
+                        .url("https://github.com/rife2/bld-checkstyle")
                 )
                 .signKey(property("sign.key"))
                 .signPassphrase(property("sign.passphrase"));
@@ -98,10 +100,13 @@ public class CheckstyleOperationBuild extends Project {
 
     @Override
     public void test() throws Exception {
-        new ExecOperation()
-                .fromProject(this)
-                .command("scripts/cliargs.sh")
-                .execute();
+        var os = System.getProperty("os.name");
+        if (os != null && os.toLowerCase(Locale.US).contains("linux")) {
+            new ExecOperation()
+                    .fromProject(this)
+                    .command("scripts/cliargs.sh")
+                    .execute();
+        }
         super.test();
     }
 }

src/main/java/rife/bld/extension/CheckstyleOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,7 @@ import rife.bld.operations.exceptions.ExitStatusException;
 
 import java.io.File;
 import java.io.IOException;
+import java.nio.file.Path;
 import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.logging.Level;
@@ -84,7 +85,19 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
     }
 
     /**
-     * Prints all debug logging of CheckStyle utility.
+     * Specifies the location of the file that defines the configuration modules. The location can either be a
+     * filesystem location, or a name passed to the {@link ClassLoader#getResource(String) ClassLoader.getResource() }
+     * method. A configuration file is required.
+     *
+     * @param file the file
+     * @return the checkstyle operation
+     */
+    public CheckstyleOperation configurationFile(Path file) {
+        return configurationFile(file.toFile().getAbsolutePath());
+    }
+
+    /**
+     * Prints all debug logging of Checkstyle utility.
      *
      * @param isDebug {@code true} or {@code false}
      * @return the checkstyle operation
@@ -99,38 +112,48 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
     }
 
     /**
-     * Directory/file to exclude from CheckStyle. The path can be the full, absolute path, or relative to the current
+     * Directory/file to exclude from Checkstyle. The path can be the full, absolute path, or relative to the current
      * path. Multiple excludes are allowed.
      *
      * @param path one or more paths
      * @return the checkstyle operation
-     * @see #sourceDir(Collection)
+     * @see #excludeStrings(Collection)
      */
     public CheckstyleOperation exclude(String... path) {
-        exclude_.addAll(Arrays.stream(path).map(File::new).toList());
-        return this;
+        return excludeStrings(List.of(path));
     }
 
     /**
-     * Directory/file to exclude from CheckStyle. The path can be the full, absolute path, or relative to the current
+     * Directory/file to exclude from Checkstyle. The path can be the full, absolute path, or relative to the current
      * path. Multiple excludes are allowed.
      *
      * @param path one or more paths
      * @return the checkstyle operation
-     * @see #sourceDir(Collection)
+     * @see #exclude(Collection)
      */
     public CheckstyleOperation exclude(File... path) {
-        exclude_.addAll(List.of(path));
-        return this;
+        return exclude(List.of(path));
     }
 
     /**
-     * Directory/file to exclude from CheckStyle. The path can be the full, absolute path, or relative to the current
+     * Directory/file to exclude from Checkstyle. The path can be the full, absolute path, or relative to the current
+     * path. Multiple excludes are allowed.
+     *
+     * @param path one or more paths
+     * @return the checkstyle operation
+     * @see #excludePaths(Collection)
+     */
+    public CheckstyleOperation exclude(Path... path) {
+        return excludePaths(List.of(path));
+    }
+
+    /**
+     * Directory/file to exclude from Checkstyle. The path can be the full, absolute path, or relative to the current
      * path. Multiple excludes are allowed.
      *
      * @param paths the paths
      * @return the checkstyle operation
-     * @see #exclude(String...)
+     * @see #exclude(File...)
      */
     public CheckstyleOperation exclude(Collection<File> paths) {
         exclude_.addAll(paths);
@@ -138,19 +161,30 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
     }
 
     /**
-     * Directory/file pattern to exclude from CheckStyle. Multiple exclude are allowed.
+     * Directory/file to exclude from Checkstyle. The path can be the full, absolute path, or relative to the current
+     * path. Multiple excludes are allowed.
+     *
+     * @param paths the paths
+     * @return the checkstyle operation
+     * @see #exclude(Path...)
+     */
+    public CheckstyleOperation excludePaths(Collection<Path> paths) {
+        return exclude(paths.stream().map(Path::toFile).toList());
+    }
+
+    /**
+     * Directory/file pattern to exclude from Checkstyle. Multiple exclude are allowed.
      *
      * @param regex the pattern to exclude
      * @return the checkstyle operation
      * @see #excludeRegex(Collection)
      */
     public CheckstyleOperation excludeRegex(String... regex) {
-        excludeRegex_.addAll(List.of(regex));
-        return this;
+        return excludeRegex(List.of(regex));
     }
 
     /**
-     * Directory/file pattern to exclude from CheckStyle. Multiple exclude are allowed.
+     * Directory/file pattern to exclude from Checkstyle. Multiple exclude are allowed.
      *
      * @param regex the patterns to exclude
      * @return the checkstyle operation
@@ -161,6 +195,18 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
         return this;
     }
 
+    /**
+     * Directory/file to exclude from Checkstyle. The path can be the full, absolute path, or relative to the current
+     * path. Multiple excludes are allowed.
+     *
+     * @param paths the paths
+     * @return the checkstyle operation
+     * @see #exclude(String...)
+     */
+    public CheckstyleOperation excludeStrings(Collection<String> paths) {
+        return exclude(paths.stream().map(File::new).toList());
+    }
+
     @Override
     public void execute() throws IOException, InterruptedException, ExitStatusException {
         if (project_ == null) {
@@ -189,9 +235,9 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
             args.add(javaTool());
 
             args.add("-cp");
-            args.add(String.format("%s:%s:%s:%s", new File(project_.libTestDirectory(), "*"),
-                    new File(project_.libCompileDirectory(), "*"), project_.buildMainDirectory(),
-                    project_.buildTestDirectory()));
+            args.add(String.format("%s%s%s%s%s%s%s", new File(project_.libTestDirectory(), "*"),
+                    File.pathSeparator, new File(project_.libCompileDirectory(), "*"), File.pathSeparator,
+                    project_.buildMainDirectory(), File.pathSeparator, project_.buildTestDirectory()));
             args.add("com.puppycrawl.tools.checkstyle.Main");
 
             options_.forEach((k, v) -> {
@@ -204,7 +250,8 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
             if (!exclude_.isEmpty()) {
                 for (var e : exclude_) {
                     if (e.exists()) {
-                        args.add("-e " + e.getAbsolutePath());
+                        args.add("-e");
+                        args.add(e.getAbsolutePath());
                     }
                 }
             }
@@ -212,7 +259,8 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
             if (!excludeRegex_.isEmpty()) {
                 for (var e : excludeRegex_) {
                     if (isNotBlank(e)) {
-                        args.add("-x " + e);
+                        args.add("-x");
+                        args.add(e);
                     }
                 }
             }
@@ -284,6 +332,13 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
         return this;
     }
 
+    /*
+     * Determines if a string is not blank.
+     */
+    private boolean isNotBlank(String s) {
+        return s != null && !s.isBlank();
+    }
+
     /**
      * This option is used to print the Parse Tree of the Javadoc comment. The file has to contain only Javadoc comment
      * content excluding '&#47;**' and '*&#47;' at the beginning and at the end respectively. It can only be used on a
@@ -337,6 +392,18 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
         return outputPath(file.getAbsolutePath());
     }
 
+    /**
+     * Sets the output file.
+     * <p>
+     * Defaults to stdout.
+     *
+     * @param file the output file
+     * @return the checkstyle operation
+     */
+    public CheckstyleOperation outputPath(Path file) {
+        return outputPath(file.toFile().getAbsolutePath());
+    }
+
     /**
      * Sets the property files to load.
      *
@@ -361,35 +428,54 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
     }
 
     /**
-     * Specified the file(s) or folder(s) containing the source files to check.
+     * Sets the property files to load.
      *
-     * @param dir one or more directories
+     * @param file the file
      * @return the checkstyle operation
-     * @see #sourceDir(Collection)
      */
-    public CheckstyleOperation sourceDir(String... dir) {
-        sourceDir_.addAll(Arrays.stream(dir).map(File::new).toList());
-        return this;
+    public CheckstyleOperation propertiesFile(Path file) {
+        return propertiesFile(file.toFile().getAbsolutePath());
     }
 
     /**
-     * Specified the file(s) or folder(s) containing the source files to check.
+     * Specifies the file(s) or folder(s) containing the source files to check.
+     *
+     * @param dir one or more directories
+     * @return the checkstyle operation
+     * @see #sourceDirStrings(Collection)
+     */
+    public CheckstyleOperation sourceDir(String... dir) {
+        return sourceDirStrings(List.of(dir));
+    }
+
+    /**
+     * Specifies the file(s) or folder(s) containing the source files to check.
      *
      * @param dir one or more directories
      * @return the checkstyle operation
      * @see #sourceDir(Collection)
      */
     public CheckstyleOperation sourceDir(File... dir) {
-        sourceDir_.addAll(List.of(dir));
-        return this;
+        return sourceDir(List.of(dir));
     }
 
     /**
-     * Specified the file(s) or folder(s) containing the source files to check.
+     * Specifies the file(s) or folder(s) containing the source files to check.
+     *
+     * @param dir one or more directories
+     * @return the checkstyle operation
+     * @see #sourceDirPaths(Collection)
+     */
+    public CheckstyleOperation sourceDir(Path... dir) {
+        return sourceDirPaths(List.of(dir));
+    }
+
+    /**
+     * Specifies the file(s) or folder(s) containing the source files to check.
      *
      * @param dirs the directories
      * @return the checkstyle operation
-     * @see #sourceDir(String...)
+     * @see #sourceDir(File...)
      */
     public CheckstyleOperation sourceDir(Collection<File> dirs) {
         sourceDir_.addAll(dirs);
@@ -405,6 +491,28 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
         return sourceDir_;
     }
 
+    /**
+     * Specifies the file(s) or folder(s) containing the source files to check.
+     *
+     * @param dirs the directories
+     * @return the checkstyle operation
+     * @see #sourceDir(Path...)
+     */
+    public CheckstyleOperation sourceDirPaths(Collection<Path> dirs) {
+        return sourceDir(dirs.stream().map(Path::toFile).toList());
+    }
+
+    /**
+     * Specifies the file(s) or folder(s) containing the source files to check.
+     *
+     * @param dirs the directories
+     * @return the checkstyle operation
+     * @see #sourceDir(String...)
+     */
+    public CheckstyleOperation sourceDirStrings(Collection<String> dirs) {
+        return sourceDir(dirs.stream().map(File::new).toList());
+    }
+
     /**
      * Prints xpath suppressions at the file's line and column position. Argument is the line and column number
      * (separated by a {@code :} ) in the file that the suppression should be generated for. The option cannot be
@@ -485,11 +593,4 @@ public class CheckstyleOperation extends AbstractProcessOperation<CheckstyleOper
         }
         return this;
     }
-
-    /*
-     * Determines if a string is not blank.
-     */
-    private boolean isNotBlank(String s) {
-        return s != null && !s.isBlank();
-    }
 }

src/main/java/rife/bld/extension/checkstyle/OutputFormat.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@
 package rife.bld.extension.checkstyle;
 
 /**
- * The Checkstyle output format for XML, sarif and default (plaib) logger.
+ * The Checkstyle output format for XML, sarif and default (plain) logger.
  */
 public enum OutputFormat {
     XML("xml"),
@@ -26,6 +26,9 @@ public enum OutputFormat {
 
     public final String label;
 
+    /**
+     * Sets the label of this output format.
+     */
     OutputFormat(String label) {
         this.label = label;
     }

src/test/java/rife/bld/extension/CheckstyleOperationTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,8 +16,11 @@
 
 package rife.bld.extension;
 
+import org.assertj.core.api.AutoCloseableSoftAssertions;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.EnabledOnOs;
+import org.junit.jupiter.api.condition.OS;
 import rife.bld.BaseProject;
 import rife.bld.Project;
 import rife.bld.WebProject;
@@ -27,6 +30,7 @@ import rife.bld.operations.exceptions.ExitStatusException;
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
+import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.List;
 import java.util.logging.ConsoleHandler;
@@ -36,7 +40,6 @@ import java.util.logging.Logger;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatCode;
 
-
 class CheckstyleOperationTest {
     public static final String SRC_MAIN_JAVA = "src/main/java";
     public static final String SRC_TEST_JAVA = "src/test/java";
@@ -64,6 +67,7 @@ class CheckstyleOperationTest {
     }
 
     @Test
+    @EnabledOnOs(OS.LINUX)
     void checkAllParameters() throws IOException {
         var args = Files.readAllLines(Paths.get("src", "test", "resources", "checkstyle-args.txt"));
 
@@ -89,15 +93,17 @@ class CheckstyleOperationTest {
                 .treeWithJavadoc(true)
                 .executeConstructProcessCommandList();
 
-        for (var p : args) {
-            var found = false;
-            for (var a : params) {
-                if (a.startsWith(p)) {
-                    found = true;
-                    break;
+        try (var softly = new AutoCloseableSoftAssertions()) {
+            for (var p : args) {
+                var found = false;
+                for (var a : params) {
+                    if (a.startsWith(p)) {
+                        found = true;
+                        break;
+                    }
                 }
+                softly.assertThat(found).as(p + " not found.").isTrue();
             }
-            assertThat(found).as(p + " not found.").isTrue();
         }
     }
 
@@ -119,17 +125,30 @@ class CheckstyleOperationTest {
     void exclude() {
         var foo = new File(SRC_MAIN_JAVA);
         var bar = new File(SRC_TEST_JAVA);
-        var op = new CheckstyleOperation().fromProject(new Project()).exclude(SRC_MAIN_JAVA, SRC_TEST_JAVA);
         var e = "-e ";
-        assertThat(op.executeConstructProcessCommandList()).as("strings")
+
+        var op = new CheckstyleOperation().fromProject(new Project()).exclude(SRC_MAIN_JAVA, SRC_TEST_JAVA);
+        assertThat(String.join(" ", op.executeConstructProcessCommandList())).as("String...")
+                .contains(e + foo.getAbsolutePath()).contains(e + bar.getAbsolutePath());
+
+        op = new CheckstyleOperation().fromProject(new Project()).excludeStrings(List.of(SRC_MAIN_JAVA, SRC_TEST_JAVA));
+        assertThat(String.join(" ", op.executeConstructProcessCommandList())).as("List(String...)")
                 .contains(e + foo.getAbsolutePath()).contains(e + bar.getAbsolutePath());
 
         op = new CheckstyleOperation().fromProject(new Project()).exclude(foo, bar);
-        assertThat(op.executeConstructProcessCommandList()).as("files")
+        assertThat(String.join(" ", op.executeConstructProcessCommandList())).as("File...")
                 .contains(e + foo.getAbsolutePath()).contains(e + bar.getAbsolutePath());
 
         op = new CheckstyleOperation().fromProject(new Project()).exclude(List.of(foo, bar));
-        assertThat(op.executeConstructProcessCommandList()).as("list")
+        assertThat(String.join(" ", op.executeConstructProcessCommandList())).as("List(File...)")
+                .contains(e + foo.getAbsolutePath()).contains(e + bar.getAbsolutePath());
+
+        op = new CheckstyleOperation().fromProject(new Project()).exclude(foo.toPath(), bar.toPath());
+        assertThat(String.join(" ", op.executeConstructProcessCommandList())).as("Path...")
+                .contains(e + foo.getAbsolutePath()).contains(e + bar.getAbsolutePath());
+
+        op = new CheckstyleOperation().fromProject(new Project()).excludePaths(List.of(foo.toPath(), bar.toPath()));
+        assertThat(String.join(" ", op.executeConstructProcessCommandList())).as("List(Path...)")
                 .contains(e + foo.getAbsolutePath()).contains(e + bar.getAbsolutePath());
     }
 
@@ -137,10 +156,10 @@ class CheckstyleOperationTest {
     void excludeRegex() {
         var op = new CheckstyleOperation().fromProject(new Project()).excludeRegex(FOO, BAR);
         var x = "-x ";
-        assertThat(op.executeConstructProcessCommandList()).contains(x + FOO, x + BAR);
+        assertThat(String.join(" ", op.executeConstructProcessCommandList())).contains(x + FOO, x + BAR);
 
         op = new CheckstyleOperation().fromProject(new Project()).excludeRegex(List.of(FOO, BAR));
-        assertThat(op.executeConstructProcessCommandList()).as("as list").contains(x + FOO, x + BAR);
+        assertThat(String.join(" ", op.executeConstructProcessCommandList())).as("as list").contains(x + FOO, x + BAR);
     }
 
     @Test
@@ -150,8 +169,8 @@ class CheckstyleOperationTest {
         var op = new CheckstyleOperation()
                 .fromProject(new WebProject())
                 .sourceDir(SRC_MAIN_JAVA, SRC_TEST_JAVA)
-                .configurationFile("src/test/resources/google_checks.xml")
-                .outputPath(tmpFile.getAbsolutePath());
+                .configurationFile(Path.of("src/test/resources/google_checks.xml"))
+                .outputPath(tmpFile.toPath());
         op.execute();
         assertThat(tmpFile).exists();
     }
@@ -236,6 +255,10 @@ class CheckstyleOperationTest {
     void propertiesFile() {
         var op = new CheckstyleOperation().fromProject(new Project()).propertiesFile(FOO);
         assertThat(op.options().get("-p")).isEqualTo(FOO);
+
+        var fooPath = Path.of(FOO);
+        op = op.propertiesFile(fooPath);
+        assertThat(op.options().get("-p")).isEqualTo(fooPath.toFile().getAbsolutePath());
     }
 
     @Test
@@ -243,18 +266,32 @@ class CheckstyleOperationTest {
         var foo = new File(FOO);
         var bar = new File(BAR);
 
-        var op = new CheckstyleOperation().fromProject(new Project()).sourceDir(FOO);
-        assertThat(op.sourceDir()).contains(foo);
+        var op = new CheckstyleOperation().fromProject(new Project()).sourceDir(FOO, BAR);
+        assertThat(op.sourceDir()).as("String...").hasSize(2).contains(foo, bar);
+        op.sourceDir().clear();
+
+        op = op.sourceDirStrings(List.of(FOO, BAR));
+        assertThat(op.sourceDir()).as("List(String...)").hasSize(2).contains(foo, bar);
+        op.sourceDir().clear();
 
         op = op.sourceDir(foo, bar);
-        assertThat(op.sourceDir()).as("foo, bar").hasSize(2)
-                .contains(foo).contains(bar);
+        assertThat(op.sourceDir()).as("File...").hasSize(2).contains(foo, bar);
+        op.sourceDir().clear();
 
         op = op.sourceDir(List.of(foo, bar));
-        assertThat(op.sourceDir()).as("List.of(foo, bar)").hasSize(2)
-                .contains(foo).contains(bar);
+        assertThat(op.sourceDir()).as("List(File...)").hasSize(2).contains(foo, bar);
+        op.sourceDir().clear();
+
+        op = op.sourceDir(foo.toPath(), bar.toPath());
+        assertThat(op.sourceDir()).as("Path...").hasSize(2).contains(foo, bar);
+        op.sourceDir().clear();
+
+        op = op.sourceDirPaths(List.of(foo.toPath(), bar.toPath()));
+        assertThat(op.sourceDir()).as("List(Path...)").hasSize(2).contains(foo, bar);
+        op.sourceDir().clear();
     }
 
+
     @Test
     void suppressionLineColumnNumber() {
         var op = new CheckstyleOperation().fromProject(new Project()).suppressionLineColumnNumber(FOO + ':' + BAR);