Affects PMD Version: 6.8.0
Rule:
Description:
NPE while applying rule InvalidSlf4jMessageFormat. Trace:
Exception applying rule InvalidSlf4jMessageFormat on file ...ClassName.java, continuing with next rule
java.lang.NullPointerException
at net.sourceforge.pmd.lang.java.rule.errorprone.InvalidSlf4jMessageFormatRule.expectedArguments(InvalidSlf4jMessageFormatRule.java:175)
at net.sourceforge.pmd.lang.java.rule.errorprone.InvalidSlf4jMessageFormatRule.visit(InvalidSlf4jMessageFormatRule.java:86)
at net.sourceforge.pmd.lang.java.ast.ASTName.jjtAccept(ASTName.java:35)
at net.sourceforge.pmd.lang.java.rule.JavaRuleChainVisitor.visit(JavaRuleChainVisitor.java:44)
at net.sourceforge.pmd.lang.rule.AbstractRuleChainVisitor.visitAll(AbstractRuleChainVisitor.java:96)
at net.sourceforge.pmd.RuleChain.apply(RuleChain.java:67)
at net.sourceforge.pmd.RuleSets.apply(RuleSets.java:140)
at net.sourceforge.pmd.SourceCodeProcessor.processSource(SourceCodeProcessor.java:184)
at net.sourceforge.pmd.SourceCodeProcessor.processSourceCode(SourceCodeProcessor.java:96)
at net.sourceforge.pmd.SourceCodeProcessor.processSourceCode(SourceCodeProcessor.java:51)
at net.sourceforge.pmd.processor.PmdRunnable.call(PmdRunnable.java:78)
at net.sourceforge.pmd.processor.MonoThreadProcessor.runAnalysis(MonoThreadProcessor.java:29)
at net.sourceforge.pmd.processor.AbstractPMDProcessor.processFiles(AbstractPMDProcessor.java:108)
at net.sourceforge.pmd.PMD.processFiles(PMD.java:329)
at net.sourceforge.pmd.ant.internal.PMDTaskImpl.doTask(PMDTaskImpl.java:191)
at net.sourceforge.pmd.ant.internal.PMDTaskImpl.execute(PMDTaskImpl.java:275)
at net.sourceforge.pmd.ant.PMDTask.execute(PMDTask.java:50)
...
at java.lang.Thread.run(Thread.java:748)
Code Sample demonstrating the issue:
public enum ClassName {
INSTANCE;
private final Logger log = LoggerFactory.getLogger(ClassName.class);
public void sendMessage(String message) {
log.info(message);
}
public static void main(String[] args) {
ClassName.INSTANCE.sendMessage("A message");
}
}
Running PMD through: Gradle
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