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https://issues.apache.org/jira/browse/HBASE-21180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ted Yu resolved HBASE-21180.
----------------------------
Resolution: Cannot Reproduce
> findbugs incurs DataflowAnalysisException for hbase-server module
> -----------------------------------------------------------------
>
> Key: HBASE-21180
> URL: https://issues.apache.org/jira/browse/HBASE-21180
> Project: HBase
> Issue Type: Task
> Reporter: Ted Yu
> Priority: Minor
>
> Running findbugs, I noticed the following in hbase-server module:
> {code}
> [INFO] --- findbugs-maven-plugin:3.0.4:findbugs (default-cli) @ hbase-server
> ---
> [INFO] Fork Value is true
> [java] The following errors occurred during analysis:
> [java] Error generating derefs for
> org.apache.hadoop.hbase.generated.master.table_jsp._jspService(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V
> [java] edu.umd.cs.findbugs.ba.DataflowAnalysisException: can't get
> position -1 of stack
> [java] At
> edu.umd.cs.findbugs.ba.Frame.getStackValue(Frame.java:250)
> [java] At
> edu.umd.cs.findbugs.ba.Hierarchy.resolveMethodCallTargets(Hierarchy.java:743)
> [java] At
> edu.umd.cs.findbugs.ba.npe.DerefFinder.getAnalysis(DerefFinder.java:141)
> [java] At
> edu.umd.cs.findbugs.classfile.engine.bcel.UsagesRequiringNonNullValuesFactory.analyze(UsagesRequiringNonNullValuesFactory.java:50)
> [java] At
> edu.umd.cs.findbugs.classfile.engine.bcel.UsagesRequiringNonNullValuesFactory.analyze(UsagesRequiringNonNullValuesFactory.java:31)
> [java] At
> edu.umd.cs.findbugs.classfile.impl.AnalysisCache.analyzeMethod(AnalysisCache.java:369)
> [java] At
> edu.umd.cs.findbugs.classfile.impl.AnalysisCache.getMethodAnalysis(AnalysisCache.java:322)
> [java] At
> edu.umd.cs.findbugs.ba.ClassContext.getMethodAnalysis(ClassContext.java:1005)
> [java] At
> edu.umd.cs.findbugs.ba.ClassContext.getUsagesRequiringNonNullValues(ClassContext.java:325)
> [java] At
> edu.umd.cs.findbugs.detect.FindNullDeref.foundGuaranteedNullDeref(FindNullDeref.java:1510)
> [java] At
> edu.umd.cs.findbugs.ba.npe.NullDerefAndRedundantComparisonFinder.reportBugs(NullDerefAndRedundantComparisonFinder.java:361)
> [java] At
> edu.umd.cs.findbugs.ba.npe.NullDerefAndRedundantComparisonFinder.examineNullValues(NullDerefAndRedundantComparisonFinder.java:266)
> [java] At
> edu.umd.cs.findbugs.ba.npe.NullDerefAndRedundantComparisonFinder.execute(NullDerefAndRedundantComparisonFinder.java:164)
> [java] At
> edu.umd.cs.findbugs.detect.FindNullDeref.analyzeMethod(FindNullDeref.java:278)
> [java] At
> edu.umd.cs.findbugs.detect.FindNullDeref.visitClassContext(FindNullDeref.java:209)
> [java] At
> edu.umd.cs.findbugs.DetectorToDetector2Adapter.visitClass(DetectorToDetector2Adapter.java:76)
> [java] At
> edu.umd.cs.findbugs.FindBugs2.analyzeApplication(FindBugs2.java:1089)
> [java] At edu.umd.cs.findbugs.FindBugs2.execute(FindBugs2.java:283)
> [java] At edu.umd.cs.findbugs.FindBugs.runMain(FindBugs.java:393)
> [java] At edu.umd.cs.findbugs.FindBugs2.main(FindBugs2.java:1200)
> [java] The following classes needed for analysis were missing:
> [java] accept
> [java] apply
> [java] run
> [java] test
> [java] call
> [java] exec
> [java] getAsInt
> [java] applyAsLong
> [java] storeFile
> [java] get
> [java] visit
> [java] compare
> {code}
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