Added PMD extension

src/bld/java/rife/bld/extension/DetektOperationBuild.java

@@ -16,6 +16,7 @@
 
 package rife.bld.extension;
 
+import rife.bld.BuildCommand;
 import rife.bld.Project;
 import rife.bld.publish.PublishDeveloper;
 import rife.bld.publish.PublishLicense;
@@ -93,4 +94,13 @@ public class DetektOperationBuild extends Project {
     public static void main(String[] args) {
         new DetektOperationBuild().start(args);
     }
+
+    @BuildCommand(summary = "Check source code with PMD")
+    public void pmd() throws Exception {
+        new PmdOperation()
+                .fromProject(this)
+                .addRuleSet("config/pmd.xml")
+                .execute();
+    }
+
 }

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

@@ -40,15 +40,15 @@ public class DetektOperation extends AbstractProcessOperation<DetektOperation> {
     private final Collection<String> input_ = new ArrayList<>();
     private final Collection<String> plugins_ = new ArrayList<>();
     private final Collection<DetektReport> report_ = new ArrayList<>();
-    private boolean allRules_ = false;
-    private boolean autoCorrect_ = false;
+    private boolean allRules_;
+    private boolean autoCorrect_;
     private String basePath_;
     private String baseline_;
     private boolean buildUponDefaultConfig_;
     private String configResource_;
     private boolean createBaseline_;
-    private boolean debug_ = false;
-    private boolean disableDefaultRuleSets_ = false;
+    private boolean debug_;
+    private boolean disableDefaultRuleSets_;
     private String excludes_;
     private boolean generateConfig_;
     private String includes_;
@@ -514,9 +514,7 @@ public class DetektOperation extends AbstractProcessOperation<DetektOperation> {
     }
 
     /**
-     * Enables parallel compilation and analysis of source files. Do some
-     * benchmarks first before enabling this flag. Heuristics show performance
-     * benefits starting from 2000 lines of Kotlin code.
+     * Extra paths to plugin jars.
      *
      * @param jars one or more jars
      * @return this operation instance
@@ -527,9 +525,7 @@ public class DetektOperation extends AbstractProcessOperation<DetektOperation> {
     }
 
     /**
-     * Enables parallel compilation and analysis of source files. Do some
-     * benchmarks first before enabling this flag. Heuristics show performance
-     * benefits starting from 2000 lines of Kotlin code.
+     * Extra paths to plugin jars.
      *
      * @param jars the list of jars
      * @return this operation instance

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

@@ -29,9 +29,10 @@ import java.util.logging.ConsoleHandler;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import static org.assertj.core.api.Assertions.*;
+import static org.assertj.core.api.Assertions.*; // NOPMD
 
 
+@SuppressWarnings("PMD.AvoidDuplicateLiterals")
 class DetektOperationTest {
     @BeforeAll
     static void beforeAll() {