java.lang.IllegalStateException: No match found in getMultilineNoArgTags.

[rgoers]

When running checkstyle on a large project under Maven I am getting the following error which causes the build to fail. I have no idea how to determine what the problem is. Any help would be appreciated.

Adding text after the @return fixes the problem. Instead of reporting an error on the missing text Checkstyle is getting an exception.

$ java -jar checkstyle-6.11.2-all.jar -c test.xml Test.java 
Exception in thread "main" java.lang.IllegalStateException: No match found
    at java.util.regex.Matcher.group(Matcher.java:536)
    at com.puppycrawl.tools.checkstyle.checks.javadoc.JavadocMethodCheck.getMultilineNoArgTags(JavadocMethodCheck.java:669)
    at com.puppycrawl.tools.checkstyle.checks.javadoc.JavadocMethodCheck.getMethodTags(JavadocMethodCheck.java:598)
    at com.puppycrawl.tools.checkstyle.checks.javadoc.JavadocMethodCheck.checkComment(JavadocMethodCheck.java:478)
    at com.puppycrawl.tools.checkstyle.checks.javadoc.JavadocMethodCheck.processAST(JavadocMethodCheck.java:365)
    at com.puppycrawl.tools.checkstyle.checks.AbstractTypeAwareCheck.visitToken(AbstractTypeAwareCheck.java:147)
    at com.puppycrawl.tools.checkstyle.TreeWalker.notifyVisit(TreeWalker.java:388)
    at com.puppycrawl.tools.checkstyle.TreeWalker.processIter(TreeWalker.java:499)
    at com.puppycrawl.tools.checkstyle.TreeWalker.walk(TreeWalker.java:330)
    at com.puppycrawl.tools.checkstyle.TreeWalker.processFiltered(TreeWalker.java:207)
    at com.puppycrawl.tools.checkstyle.api.AbstractFileSetCheck.process(AbstractFileSetCheck.java:79)
    at com.puppycrawl.tools.checkstyle.Checker.process(Checker.java:265)
    at com.puppycrawl.tools.checkstyle.Main.runCheckstyle(Main.java:277)
    at com.puppycrawl.tools.checkstyle.Main.main(Main.java:118)


/var/tmp$ cat Test.java 
/*
 * File Header.
 */

public class CheckError {

        private long lServiceProviderId;

        /**
         * getter for the service provider id this phone number belongs to
         *
         * @return
         *
         */
         public long getLServiceProviderId() {
                return lServiceProviderId;
        }
}

/var/tmp$ cat test.xml 
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC
    "-//Puppy Crawl//DTD Check Configuration 1.1//EN"
    "http://www.puppycrawl.com/dtds/configuration_1_1.dtd">

<module name="Checker">
    <property name="localeLanguage" value="en"/>
    <module name="TreeWalker">

        <module name="JavadocMethod">
            <property name="scope" value="public"/>
            <property name="allowUndeclaredRTE" value="true"/>
              <property name="allowMissingJavadoc" value="true"/>
        </module>
    </module>

</module>

[romani]

@rgoers , thanks for catching a problem.

[mkordas]

Duplicate of #2398, already fixed, will be released in 6.12.