which rulesets does the maven pmd plugin use by default?

Question

I'm trying to figure out which rulesets the maven pmd plugin (I have version 3.4) uses by default.

According to the plugin website, it uses only basic.xml, unusedcode.xml and imports.xml. However, I can say for sure that it must also use unnecessary.xml and empty.xml (as we have failures in our code from those categories without changing the rules).

How do I figure out which other rulesets it's actually using by default?

I want to use the default rulesets, but I need to make a few minor adjustments, e.g. to the UselessParentheses rule as described here.

Other useful links:

• All java rulesets @ github
• One xml file that includes all java rules (somehow can't find find it on github)

Answer 1

According to the documentation of rulesets tag you are right:

Defaults to the java-basic, java-empty, java-imports, java-unnecessary and java-unusedcode rulesets