https://stackoverflow.com/questions/20710704
italiano
english
français
española
中国
日本の
العربية
Deutsch
한국어
Português
RussianI realize this is a huge edit, but it's essentially a different answer. So after speaking to you and playing around with it, I've determined that the Gradle plugin uses a slightly older version of the pmd library than is published (namely, version 4.3); however, there are a few rulesets missing from the plugin since the most recent pmd version is 5.0.5 which breaks with a NullPointerException with Gradle and Java. Now, after writing possibly the most syntactically correct and painstaking Hello World Java program of my life to test all of these, I've compiled every single Java rule-set that works with the Gradle plugin at the moment:
here's the Main.java:
package william;
import java.util.logging.Logger;
public final class Main{
private Main(){}
public static void main(final String [ ] args){
final Logger log = Logger.getLogger(Main.class.getName());
log.fine("Hello World");
}
}
here's the build.gradle:
apply plugin: 'java'
apply plugin: 'pmd'
pmd {
ruleSets = [
"basic",
"braces",
"naming",
"android",
"clone",
"codesize",
"controversial",
"design",
"finalizers",
"imports",
"j2ee",
"javabeans",
"junit",
"logging-jakarta-commons",
"logging-java",
"migrating",
"optimizations",
"strictexception",
"strings",
"sunsecure",
"typeresolution",
"unusedcode"
]
}
repositories {
mavenCentral()
}
and now you might be wondering, which rulesets AREN'T supported yet? well the answer is:
"comments""empty""unnecessary"
Trust me when I say, the rest of the rules work flawlessly. They tore me apart when writing a Hello World. So, I hope this helps, the directory that has all of the Java rulesets.xml files defined is at: link to pmd's github java ruleset directory I ignore the migrate ones, because they didn't work. I think they're for something specific.
Good luck, and I would bring up the issue of the missing rulesets on the gradle forums to petition to get them added, or update the version. Or you could custom compile the plugin and link it to the newer pmd version if you are really desperate for the missing rulesets.
