[STORM-3850] Static code analyzer (PMD) Errors

Description

Contributor guide

Tech stack

java

Domain

tooling

Issue type

chore

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

4

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

over 1 week

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

JavaPMD

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

30

Research direction

Examine the PMD configuration in the Maven pom.xml files to set the source version to Java 8. Run PMD to identify all warnings. Fix warnings systematically, starting with parsing errors and then code issues. Note that the issue was originally assigned to bipinprasad but no recent activity. The import from JIRA indicates it was 'In Progress' but the GitHub issue is open with no assignees.