To show PMD warnings, the PMD XML needs to put out to the build log.
When Using PMD Command Line
Use the --format xml flag to print out the PMD analysis into the build log. For example:
pmd --dir $PWD/src/main --rulesets category/java/bestpractices.xml --format xml
When Using Maven PMD
The Maven PMD plugin, doesn’t support printing the XML into the logs. Instead print the generated target/pmd.xml file into the build log by a follow up task:
#!/bin/bash cat ./target/pmd.xml || echo "No PMD analytics generated"
When Using Gradle PMD
The Gradle PMD plugin, doesn’t support printing the XML into the logs. Instead print the generated ./build/reports/pmd/main.xml file into the build log by a follow up task:
#!/bin/bash cat ./build/reports/pmd/main.xml || echo "No PMD analytics generated"
When Using PMD via Build System
Typically the build system tool generate a PMD report xml, and you can dump that to the console. For example:
#!/bin/bash cat ./a-build-dir/pmd.xml || echo "No PMD analytics generated"