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To troubleshoot a Jenkins code-analysis failure, find the first failed stage, then check the pipeline in order: whether it invoked the analyzer, whether the agent ran it successfully, whether it created a report, whether Jenkins ingested that report, and whether the final build status matches your policy. These are separate failure points; a red build does not by itself prove the analyzer failed, and a green build does not prove Jenkins published its results.
Identify which phase failed
Jenkins does not have one universal code-analysis step or failure code. The analyzer, pipeline, and report publisher each have their own behavior. Trace the build through these phases and locate the first one that did not complete as expected:
- Pipeline setup: Jenkins checked out the intended revision, allocated an agent, and entered the analysis stage.
- Analysis execution: The agent launched the intended command with the expected inputs, and the process completed with an exit status.
- Report creation: The analyzer wrote a report in the expected format and location.
- Report ingestion: A Jenkins step found and parsed that report.
- Status policy: Findings, tool errors, publisher errors, and quality-gate outcomes produced the intended
SUCCESS,UNSTABLE, orFAILUREresult.
Jenkins Pipeline supports Declarative and Scripted syntax, but the right way to handle failure depends on which syntax and steps the Jenkinsfile uses. See the Pipeline overview and Jenkinsfile failure-handling guidance.
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Read the build output from the first failure
Open the failed build’s Console Output. Find the earliest relevant error, not just the final line: a later error may only report that a file or workspace is missing because an earlier checkout, build, or analysis step failed. Jenkins’ Pipeline syntax reference explains stage conditions, agents, timeouts, retries, and post conditions that can affect whether a step runs.
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- No analyzer command appears: Check whether the stage was skipped by a
whencondition, the pipeline stopped earlier, checkout failed, or agent allocation timed out. - The command appears but cannot start: Look for a missing executable, permission error, unavailable runtime, or incorrect working directory.
- The command runs and exits nonzero: Read its full output and consult that analyzer’s documentation. The status might mean findings were detected, or it might indicate a configuration, dependency, network, or runtime failure.
- The command appears to finish, but publishing fails: Look for missing-file, unmatched-pattern, or parsing errors from the publisher. That is a report-ingestion problem unless the evidence points back to analysis.
- The result is unexpected: Identify which step or plugin changed the build status. A test or reporting step can mark a build
UNSTABLE; that is not automatically equivalent to an analyzer crash.
Record the commit, branch, Jenkins build number, agent or container, tool version, and relevant plugin versions. Comparing these with a known-good build helps reveal whether the change was in the source, configuration, execution environment, or reporting setup.
Check the agent and toolchain
Jenkins controllers orchestrate work; agents execute pipeline steps. Check the machine or container that ran the analysis, rather than relying on what is installed on the controller or a developer’s computer. Jenkins describes the distinction in its agent documentation.
- Confirm the stage’s
agentlabel or container is the one you intended, and that it has the required executable, runtime, permissions, and resources. - For Jenkins-managed JDK, Maven, or Gradle installations, verify the named installation under Manage Jenkins → Tools. The Jenkinsfile’s
toolsdirective uses configured installations; it does not install an arbitrary tool name. - For Gradle projects, check that the repository’s
./gradlewwrapper was checked out and is executable on Unix. Gradle’s Jenkins guidance recommends the wrapper so the project controls the Gradle version; the agent still needs a JDK. See Gradle on Jenkins. - Check the working directory and
PATH. A stage, shell script, or container can override the path and select a different executable—or make the intended one unavailable. Jenkins documents environment-variable and PATH considerations. - Verify that the Jenkins service account can read configuration and source files, execute the tool, and write to the workspace and temporary directories.
- For slow or intermittent failures, check agent connectivity, timeout and retry settings, memory pressure, and available disk before increasing timeouts or adding retries. Stage-level timeout timing can include agent provisioning, not just analyzer runtime.
Use targeted diagnostics in the relevant stage, such as pwd, whoami, the tool’s documented version command, and a listing of the expected input and output directories. Commands and flags vary by tool and operating system; use the analyzer’s own CLI documentation for the exact invocation. Do not dump the entire environment: it can contain credentials.
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Verify the analyzer’s inputs and configuration
Analysis can run without analyzing the source you intended. Compare the failing build with a known-good run and check that both use the same commit, branch, source root, configuration, and relevant tool or ruleset version.
- Confirm the command runs from the expected directory and points at the intended sources and configuration file.
- Check whether the analyzer needs dependencies, generated sources, a compile database, an SDK, or other build outputs that are missing because an earlier stage did not produce them.
- Review include paths, exclusions, changed-file settings, and working-directory options for changes that could omit source files.
- If the analyzer contacts an external service, check DNS, proxy, TLS certificates, firewall access, and authentication from the agent that runs the command.
- Compare the exact analyzer version and configuration with the last successful run, especially after a tool or ruleset update.
Jenkins credentials should be referenced by credential ID rather than printed into the log. Masking is best-effort, so avoid shell tracing around secrets and use targeted checks; see Using credentials and the Credentials Binding step.
Confirm that a report exists in the right workspace
A publisher generally reads a report; it does not run the analyzer that creates it. Before changing the publisher configuration, confirm that the report exists after analysis and before publication, on the workspace used by the publishing step.
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- Check the actual filename, location, size, and format. A path that works locally may not be relative to Jenkins’ workspace root.
- In a multi-stage pipeline, verify that the report survives any change of agent or workspace. If stages do not share a workspace, explicitly transfer the file using the pipeline’s artifact or stash workflow.
- In parallel branches, use distinct output paths so one branch cannot overwrite another’s report.
- Check that the report is complete, valid, and in the format expected by the selected parser. Encoding or source-path mismatches can cause display problems even when parsing succeeds.
- If an earlier test or analysis failure prevents report creation, decide whether a partial report is useful and arrange publication on a finalization path where appropriate.
Do not assume a green build proves a report was created or read. Some plugin processing errors are logged or shown separately from the build result.
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Fix the Jenkins publisher configuration
Check that the pipeline uses a publisher for the report’s actual format and that its file pattern matches the real path. Jenkins report patterns commonly use Ant-style globs relative to the workspace. When plugin behavior or UI labels are unclear, use the instance’s Pipeline Syntax or Snippet Generator and confirm the installed plugin version rather than relying on instructions for a different release.
| Publisher | What to verify | Behavior to keep in mind |
|---|---|---|
| JUnit | Use JUnit-compatible XML and a pattern that matches the files in the workspace. | Jenkins documents that missing or empty results fail by default; allowEmptyResults can hide a broken path or absent output. See the JUnit Pipeline step. |
| Warnings Next Generation | Check the configured report files or console-output parser, matched paths, encoding, and source mapping. | Its documentation says some scan errors, including unmatched patterns, can appear in a separate view without changing build state by default. See Warnings Next Generation Pipeline steps. |
| Coverage | Check the report format, path, and the configured failOnError behavior. |
Processing errors do not change build status by default according to the plugin documentation. See the Coverage Pipeline step and Coverage plugin page. |
Allowing a missing report can be reasonable when a report is genuinely optional or a stage is conditional. If it is enabled unconditionally, Jenkins may no longer signal that the analyzer never ran, the report path is wrong, or the expected file was not produced. Treat parser errors and build status as separate signals until you have confirmed how the installed plugin handles them.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Publish useful reports without erasing analysis failures
Jenkins’ Declarative post { always { ... } } runs finalization steps regardless of the pipeline’s completion status. It can publish useful output after a command fails, but the publisher and its report path must match the actual tool and plugin. The following is a pattern to adapt, not a universal copy-and-paste pipeline; sh is Unix-specific.
pipeline {
agent any
stages {
stage('Analysis') {
steps {
sh './run-analysis --report build/analysis/report.xml'
}
}
}
post {
always {
// Replace with the publisher and path for the actual report format.
// Keep missing-report errors unless absence is expected.
recordIssues tools: [/* tool parser and report pattern */]
}
}
}The sample command and report path are illustrative; use the analyzer’s documented arguments and your installed publisher’s syntax. Jenkins documents post in its Pipeline syntax reference and shows test and artifact publication in its test-and-artifact guide.
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First establish what a nonzero exit means for this analyzer. If it means policy findings, choose deliberately whether findings should fail the build, mark it unstable, or be reported separately. If it means the tool could not complete, preserve that failure even if a partial report is published. Jenkins’ failure-handling guidance explains how shell and pipeline failures affect build status: Using a Jenkinsfile.
Investigate intermittent failures and Jenkins infrastructure
If identical commits sometimes succeed and sometimes fail, look for transient infrastructure issues before changing analysis policy. Check whether the agent disconnected, the process was terminated, a timeout occurred during provisioning, or disk and memory were exhausted. Retries can help with operations known to be transient, but they do not fix deterministic errors such as a bad path, missing credentials, or invalid configuration.
Jenkins’ durable external-process steps can resume monitoring after reconnection in some circumstances; they do not guarantee that a lost workspace, unavailable agent, or missing output file will be restored. See the Durable Task step plugin and its API documentation.
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Quick Recap
Prevent the next failure
- Keep the analyzer command, configuration, and expected report path explicit in the Jenkinsfile or version-controlled build configuration.
- Record safe version and workspace diagnostics so a failed run can be compared with a known-good one.
- Make the team’s policy explicit: distinguish analysis findings from execution errors, report-processing errors, and quality-gate outcomes.
- Keep missing-report handling strict unless absence is intentionally acceptable for that run.
- Validate Jenkinsfile changes with Jenkins’ Pipeline development tools, including the Pipeline Linter where available. Replay has documented limitations and should not be treated as a substitute for validating the real job and agent.
- After changing a tool, plugin, agent image, or report pattern, rerun the same commit and verify both the published results and the final build status.
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