Package edu.umd.cs.findbugs.ba.deref

Examples of edu.umd.cs.findbugs.ba.deref.UnconditionalValueDerefSet

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            Map<ValueNumber, SortedSet<Location>> bugEdgeLocationMap) throws DataflowAnalysisException {
        // Check every non-exception control edge
        for (Iterator<Edge> i = cfg.edgeIterator(); i.hasNext();) {
            Edge edge = i.next();

            UnconditionalValueDerefSet uvdFact = uvdDataflow.getFactOnEdge(edge);

            if (uvdFact.isEmpty()) {
                continue;
            }

            if (edge.isExceptionEdge()) {
                if (DEBUG_DEREFS) {
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                boolean noisy = false;
                if (invokedMethodName.equals("get")) {
                    UnconditionalValueDerefDataflow unconditionalValueDerefDataflow = classContext
                            .getUnconditionalValueDerefDataflow(method);

                    UnconditionalValueDerefSet unconditionalDeref = unconditionalValueDerefDataflow.getFactAtLocation(location);
                    ValueNumberFrame vnAfter = vnDataflow.getFactAfterLocation(location);
                    ValueNumber top = vnAfter.getTopValue();
                    noisy = unconditionalDeref.getValueNumbersThatAreUnconditionallyDereferenced().contains(top);
                }
                // Prepare bug report
                SourceLineAnnotation sourceLineAnnotation = SourceLineAnnotation.fromVisitedInstruction(classContext, methodGen,
                        sourceFile, handle);
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                        .getNext());
                if (guaranteed == null) {
                    return;
                }

                UnconditionalValueDerefSet unconditionalDeref = unconditionalValueDerefDataflow.getFactAtLocation(guaranteed);
                if (DEBUG) {
                    System.out.println("Guaranteed on null: " + guaranteed);
                    System.out.println(unconditionalDeref);
                }

                if (unconditionalDeref.isUnconditionallyDereferenced(value)) {
                    SourceLineAnnotation tested = SourceLineAnnotation.fromVisitedInstruction(getClassContext(), getMethod(),
                            produced);
                    BugAnnotation variableAnnotation = ValueNumberSourceInfo.findAnnotationFromValueNumber(getMethod(), produced,
                            value, valueNumberFact, "VALUE_OF");
                    Set<Location> unconditionalDerefLocationSet = unconditionalDeref.getUnconditionalDerefLocationSet(value);

                    BugInstance bug;
                    if (unconditionalDerefLocationSet.size() > 1) {
                        bug = new BugInstance(this, "NP_GUARANTEED_DEREF", NORMAL_PRIORITY).addClassAndMethod(this);
                        bug.addOptionalAnnotation(variableAnnotation);
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            SignatureParser parser = new SignatureParser(method.getSignature());
            int paramLocalOffset = method.isStatic() ? 0 : 1;

            // Build BitSet of params that are unconditionally dereferenced
            BitSet unconditionalDerefSet = new BitSet();
            UnconditionalValueDerefSet entryFact = dataflow.getResultFact(cfg.getEntry());
            Iterator<String> paramIterator = parser.parameterSignatureIterator();
            int i = 0;
            while (paramIterator.hasNext()) {
                String paramSig = paramIterator.next();

                ValueNumber paramVN = vnaDataflow.getAnalysis().getEntryValue(paramLocalOffset);

                handleParameter: if (entryFact.isUnconditionallyDereferenced(paramVN)) {
                    TypeQualifierAnnotation directTypeQualifierAnnotation = TypeQualifierApplications
                            .getDirectTypeQualifierAnnotation(xmethod, i, nonnullTypeQualifierValue);
                    TypeQualifierAnnotation typeQualifierAnnotation = TypeQualifierApplications
                            .getEffectiveTypeQualifierAnnotation(xmethod, i, nonnullTypeQualifierValue);
                    boolean implicitNullCheckForEquals = false;
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Related Classes of edu.umd.cs.findbugs.ba.deref.UnconditionalValueDerefSet

  • edu.umd.cs.findbugs.ba.npe.NullDerefAndRedundantComparisonFinder
  • edu.umd.cs.findbugs.ba.vna.ValueNumber
  • edu.umd.cs.findbugs.detect.BuildUnconditionalParamDerefDatabase
  • edu.umd.cs.findbugs.detect.FindNullDerefsInvolvingNonShortCircuitEvaluation
  • edu.umd.cs.findbugs.detect.FindUnrelatedTypesInGenericContainer
  • java.util.BitSet
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