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RedundantReturnCheck: NPE on method with no body #687

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rnveach opened this Issue Jun 9, 2018 · 1 comment

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rnveach commented Jun 9, 2018

$ cat TestClass.java
public class TestClass {
    native void method();
}

$ cat TestConfig.xml
<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
          "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
          "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">

<module name="Checker">
    <property name="charset" value="UTF-8"/>

    <module name="TreeWalker">
<module name="com.github.sevntu.checkstyle.checks.coding.RedundantReturnCheck">
  <property name="allowReturnInEmptyMethodsAndConstructors" value="true" />
</module>
    </module>
</module>

$ java -jar checkstyle-8.9-sevntu-1.29.0-all.jar -c TestConfig.xml TestClass.java
Starting audit...
com.puppycrawl.tools.checkstyle.api.CheckstyleException: Exception was thrown while processing TestClass.java
    at com.puppycrawl.tools.checkstyle.Checker.processFiles(Checker.java:299)
    at com.puppycrawl.tools.checkstyle.Checker.process(Checker.java:217)
    at com.puppycrawl.tools.checkstyle.Main.runCheckstyle(Main.java:523)
    at com.puppycrawl.tools.checkstyle.Main.runCli(Main.java:438)
    at com.puppycrawl.tools.checkstyle.Main.main(Main.java:211)
Caused by: java.lang.NullPointerException
    at com.github.sevntu.checkstyle.checks.coding.RedundantReturnCheck.ignoreLonelyReturn(RedundantReturnCheck.java:152)
    at com.github.sevntu.checkstyle.checks.coding.RedundantReturnCheck.visitToken(RedundantReturnCheck.java:132)
    at com.puppycrawl.tools.checkstyle.TreeWalker.notifyVisit(TreeWalker.java:390)
    at com.puppycrawl.tools.checkstyle.TreeWalker.processIter(TreeWalker.java:501)
    at com.puppycrawl.tools.checkstyle.TreeWalker.walk(TreeWalker.java:330)
    at com.puppycrawl.tools.checkstyle.TreeWalker.processFiltered(TreeWalker.java:183)
    at com.puppycrawl.tools.checkstyle.api.AbstractFileSetCheck.process(AbstractFileSetCheck.java:83)
    at com.puppycrawl.tools.checkstyle.Checker.processFile(Checker.java:320)
    at com.puppycrawl.tools.checkstyle.Checker.processFiles(Checker.java:290)
    ... 4 more
Checkstyle ends with 1 errors.

@rnveach rnveach changed the title RedundantReturnCheck: NPE RedundantReturnCheck: NPE on method with no body Jun 9, 2018

rnveach added a commit to rnveach/sevntu.checkstyle that referenced this issue Jun 9, 2018

@romani romani added the approved label Jun 9, 2018

romani added a commit that referenced this issue Jun 9, 2018

@romani romani added this to the 1.30.0 milestone Jun 9, 2018

@romani

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romani commented Jun 9, 2018

fix is merged

@romani romani closed this Jun 9, 2018

@rnveach rnveach added the bug label Jun 23, 2018

kariem added a commit to kariem/sevntu.checkstyle that referenced this issue Jul 26, 2018

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