PMD Tool Fails Locally but CI Doesn't Detect It #18479

## PMD Tool Fails Locally but CI Doesn't Detect It #18479

### Summary
Running PMD locally fails, but the CI pipeline doesn't catch this failure. The issue appears after splitting tools in the CI setup.

### Details
After splitting the tools in our CI configuration, we've encountered two issues that question the overall CI setup.

### Related Links
- https://github.com/checkstyle/checkstyle/pull/18440
  - https://github.com/checkstyle/checkstyle/pull/18440/changes#r2655335514

### Expected Behavior
1. PMD should run successfully both locally and in CI
2. CI should fail when PMD encounters issues
3. Local and CI behavior should be consistent

### Current Behavior
1. PMD fails when running locally
2. CI pipeline continues without detecting the PMD failure
3. Inconsistent behavior between local and CI environments

### Impact
- Developers may miss critical code quality issues
- Inconsistent feedback between local development and CI
- Potential quality issues may reach production

### Notes
Need to investigate why CI isn't catching the PMD failures that occur locally. This suggests a configuration discrepancy between local and CI environments.



```
[INFO] 
[INFO] --- pmd:3.28.0:check (default-cli) @ checkstyle ---
[WARNING] PMD Failure: com.puppycrawl.tools.checkstyle.AbstractAutomaticBean:243 Rule:ExceptionAsFlowControl Priority:3 Exception thrown at line 237 is caught in this block..
[WARNING] PMD Failure: com.puppycrawl.tools.checkstyle.DetailNodeTreeStringPrinter:80 Rule:UnusedPrivateMethod Priority:3 Avoid unused private methods such as 'parseJavadocAsDetailNode(String)'..
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  01:17 min
[INFO] Finished at: 2025-12-31T11:27:50Z
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-pmd-plugin:3.28.0:check (default-cli) on project checkstyle: PMD 7.20.0 has found 2 violations. For more details see: /home/circleci/project/target/pmd.xml -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-pmd-plugin:3.28.0:check (default-cli) on project checkstyle: PMD 7.20.0 has found 2 violations. For more details see: /home/circleci/project/target/pmd.xml
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:333)
    at org.apache.maven.lifecycle.inte
```

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PMD Tool Fails Locally but CI Doesn't Detect It #18479 #18470