PMD files

.coderabbit.yaml

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+reviews:
+  path_filters: ["**/ruleset.xml","ruleset.xml", "**/bad.java", "bad.java"]

bad.java

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+public class BadExample {
+
+    private int unusedField;
+
+    public BadExample() {
+        // unnecessary constructor
+    }
+
+    public void DOStuff() {
+        try {
+            int FooBar = 1;
+            System.out.println("Start");
+
+            for (int i = 0; i < 30; i++) {
+                System.out.println("Line " + i);
+            }
+        } catch (Exception e) {
+            // silently ignored
+        } finally {
+            return; // forbidden in finally block
+        }
+    }
+}
+

ruleset.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<ruleset name="CodeRabbit PMD Ruleset"
+         xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0
+                             http://pmd.sourceforge.net/ruleset_2_0_0.xsd"
+         description="PMD rules aligned with CodeRabbit standards for general-purpose Java projects.">
+
+    <!-- Keep existing valid rules -->
+    <rule ref="category/java/bestpractices.xml/UnusedPrivateField"/>
+    <rule ref="category/java/errorprone.xml/EmptyCatchBlock"/>
+    <rule ref="category/java/errorprone.xml/ReturnFromFinallyBlock"/>
+    <rule ref="category/java/codestyle.xml/UnnecessaryConstructor"/>
+
+    <!-- Replace deprecated VariableNamingConventions with specific naming rules -->
+    <rule ref="category/java/codestyle.xml/LocalVariableNamingConventions">
+        <properties>
+            <property name="localVarPattern" value="^[a-z][a-zA-Z0-9]*$"/>
+        </properties>
+    </rule>
+
+    <!-- Replace deprecated ExcessiveMethodLength with NcssCount -->
+    <rule ref="category/java/design.xml/NcssCount">
+        <properties>
+            <property name="methodReportLevel" value="25"/>
+            <property name="classReportLevel" value="500"/>
+        </properties>
+    </rule>
+
+    <!-- Optional: Add other specific naming convention rules -->
+    <rule ref="category/java/codestyle.xml/FieldNamingConventions"/>
+    <rule ref="category/java/codestyle.xml/MethodNamingConventions"/>
+    <rule ref="category/java/codestyle.xml/ClassNamingConventions"/>
+
+</ruleset>