Examples of edu.umd.cs.findbugs.BugInstance$NoSuchBugPattern

edu.umd.cs.findbugs.BugInstance
An instance of a bug pattern. A BugInstance consists of several parts:
- the type, which is a string indicating what kind of bug it is; used as a key for the FindBugsMessages resource bundle
- the priority; how likely this instance is to actually be a bug
- a list of annotations
The annotations describe classes, methods, fields, source locations, and other relevant context information about the bug instance. Every BugInstance must have at least one ClassAnnotation, which describes the class in which the instance was found. This is the "primary class annotation".

BugInstance objects are built up by calling a string of add methods. (These methods all "return this", so they can be chained). Some of the add methods are specialized to get information automatically from a BetterVisitor or DismantleBytecode object. @author David Hovemeyer @see BugAnnotation


        if (staticMethod && seen == PUTSTATIC && MutableStaticFields.mutableSignature(getSigConstantOperand())) {
            OpcodeStack.Item top = stack.getStackItem(0);
            if (isPotentialCapture(top)) {
                bugAccumulator.accumulateBug(
                        new BugInstance(this, "EI_EXPOSE_STATIC_REP2", NORMAL_PRIORITY)
                        .addClassAndMethod(this)
                        .addReferencedField(this)
                        .add(LocalVariableAnnotation.getLocalVariableAnnotation(getMethod(), top.getRegisterNumber(),
                                getPC(), getPC() - 1)), this);
            }
        }
        if (!staticMethod && seen == PUTFIELD && MutableStaticFields.mutableSignature(getSigConstantOperand())) {
            OpcodeStack.Item top = stack.getStackItem(0);
            OpcodeStack.Item target = stack.getStackItem(1);
            if (isPotentialCapture(top) && target.getRegisterNumber() == 0) {
                bugAccumulator.accumulateBug(
                        new BugInstance(this, "EI_EXPOSE_REP2", NORMAL_PRIORITY)
                        .addClassAndMethod(this)
                        .addReferencedField(this)
                        .add(LocalVariableAnnotation.getLocalVariableAnnotation(getMethod(), top.getRegisterNumber(),
                                getPC(), getPC() - 1)), this);
            }
        }


        if (seen == ALOAD_0 && !staticMethod) {
            thisOnTOS = true;
            fieldOnTOS = false;
            return;
        }


        if (thisOnTOS && seen == GETFIELD && getClassConstantOperand().equals(getClassName())
                && !AnalysisContext.currentXFactory().isEmptyArrayField(getXFieldOperand())) {
            fieldOnTOS = true;
            thisOnTOS = false;
            nameOnStack = getNameConstantOperand();
            classNameOnStack = getDottedClassConstantOperand();
            sigOnStack = getSigConstantOperand();
            fieldIsStatic = false;
            return;
        }
        if (seen == GETSTATIC && getClassConstantOperand().equals(getClassName())
                && !AnalysisContext.currentXFactory().isEmptyArrayField(getXFieldOperand())) {
            fieldOnTOS = true;
            thisOnTOS = false;
            nameOnStack = getNameConstantOperand();
            classNameOnStack = getDottedClassConstantOperand();
            sigOnStack = getSigConstantOperand();
            fieldIsStatic = true;


            return;
        }
        thisOnTOS = false;
        if (check && fieldOnTOS && seen == ARETURN
                /*
                 * && !sigOnStack.equals("Ljava/lang/String;") &&
                 * sigOnStack.indexOf("Exception") == -1 && sigOnStack.indexOf("[") >= 0
                 */
                && nameOnStack.indexOf("EMPTY") == -1 && MutableStaticFields.mutableSignature(sigOnStack)) {
            bugAccumulator.accumulateBug(new BugInstance(this, staticMethod ? "MS_EXPOSE_REP" : "EI_EXPOSE_REP", NORMAL_PRIORITY)
            .addClassAndMethod(this).addField(classNameOnStack, nameOnStack, sigOnStack, fieldIsStatic), this);
        }


        fieldOnTOS = false;
        thisOnTOS = false;

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                    } else {
                        // opposite checks
                        priority += 2;
                    }


                    BugInstance bug = new BugInstance(this, "RpC_REPEATED_CONDITIONAL_TEST", priority).addClassAndMethod(this)
                            .add(firstSourceLine).add(secondSourceLine);
                    bugReporter.reportBug(bug);
                }
            }
        emptyStackLocations.add(getPC());

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        String calledMethodSig = getSigConstantOperand();
        if (!sawOpenInAppendMode) {
            if (calledClassName.equals("java/io/ObjectOutputStream") && calledMethodName.equals("<init>")
                    && calledMethodSig.equals("(Ljava/io/OutputStream;)V")
                    && stack.getStackItem(0).getSpecialKind() == OpcodeStack.Item.FILE_OPENED_IN_APPEND_MODE) {
                bugReporter.reportBug(new BugInstance(this, "IO_APPENDING_TO_OBJECT_OUTPUT_STREAM", Priorities.HIGH_PRIORITY)
                .addClassAndMethod(this).addSourceLine(this));
            }
            return;
        }
        if (calledClassName.equals("java/io/FileOutputStream") && calledMethodName.equals("<init>")
                && (calledMethodSig.equals("(Ljava/io/File;Z)V") || calledMethodSig.equals("(Ljava/lang/String;Z)V"))) {
            OpcodeStack.Item item = stack.getStackItem(0);
            Object value = item.getConstant();
            sawOpenInAppendMode = value instanceof Integer && ((Integer) value).intValue() == 1;
        } else if (!sawOpenInAppendMode) {
            return;
        } else if (calledClassName.equals("java/io/BufferedOutputStream") && calledMethodName.equals("<init>")
                && calledMethodSig.equals("(Ljava/io/OutputStream;)V")) {
            // do nothing


        } else if (calledClassName.equals("java/io/ObjectOutputStream") && calledMethodName.equals("<init>")
                && calledMethodSig.equals("(Ljava/io/OutputStream;)V")) {
            bugReporter.reportBug(new BugInstance(this, "IO_APPENDING_TO_OBJECT_OUTPUT_STREAM", Priorities.HIGH_PRIORITY)
            .addClassAndMethod(this).addSourceLine(this));
            sawOpenInAppendMode = false;
        } else {
            sawOpenInAppendMode = false;
        }

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        }
        sawNoSuchElement = false;
        sawCall = false;
        super.visit(obj);
        if (!sawNoSuchElement) {
            BugInstance bug = new BugInstance(this, "IT_NO_SUCH_ELEMENT", sawCall ? LOW_PRIORITY : NORMAL_PRIORITY);
            bug.addClassAndMethod(this);
            bugReporter.reportBug(bug);
        }
    }

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        }
        // Report the bug.
        InstructionHandle start = match.getLabeledInstruction("start");
        InstructionHandle end = match.getLabeledInstruction("end");
        String sourceFile = javaClass.getSourceFileName();
        bugReporter.reportBug(new BugInstance(this, sawGetStaticAfterPutStatic ? "LI_LAZY_INIT_UPDATE_STATIC"
                : "LI_LAZY_INIT_STATIC", priority).addClassAndMethod(methodGen, sourceFile).addField(xfield)
                .describe("FIELD_ON").addSourceLine(classContext, methodGen, sourceFile, start, end));
        reported.set(testInstructionHandle.getPosition());


    }

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                            if (intentional || allAbstract(overrides)) {
                                break;
                            }
                            priority++;
                        }
                        BugInstance bug = new BugInstance(this, pattern, priority).addClass(m.getClassName()).addMethod(m)
                                .addClass(m2.getClassName()).describe(ClassAnnotation.SUPERCLASS_ROLE).addMethod(m2)
                                .describe(MethodAnnotation.METHOD_DID_YOU_MEAN_TO_OVERRIDE);
                        if (m3 != null) {
                            bug.addMethod(m3).describe(MethodAnnotation.METHOD_OVERRIDDEN);
                        }
                        propertySet.decorateBugInstance(bug);
                        bugReporter.reportBug(bug);
                    } else if (!m.getSignature().equals(m2.getSignature())
                            && removePackageNamesFromSignature(m.getSignature()).equals(
                                    removePackageNamesFromSignature(m2.getSignature()))) {
                        String pattern = intentional ? "NM_WRONG_PACKAGE_INTENTIONAL" : "NM_WRONG_PACKAGE";
                        Set<XMethod> overrides = Hierarchy2.findSuperMethods(m);
                        if (!overrides.isEmpty()) {
                            if (intentional || allAbstract(overrides)) {
                                break;
                            }
                            priority++;
                        }
                        Iterator<String> s = new SignatureParser(m.getSignature()).parameterSignatureIterator();
                        Iterator<String> s2 = new SignatureParser(m2.getSignature()).parameterSignatureIterator();
                        while (s.hasNext()) {
                            String p = s.next();
                            String p2 = s2.next();
                            if (!p.equals(p2)) {
                                BugInstance bug = new BugInstance(this, pattern, priority).addClass(m.getClassName())
                                        .addMethod(m).addClass(m2.getClassName()).describe(ClassAnnotation.SUPERCLASS_ROLE)
                                        .addMethod(m2).describe(MethodAnnotation.METHOD_DID_YOU_MEAN_TO_OVERRIDE)
                                        .addFoundAndExpectedType(p, p2);
                                if (m3 != null) {
                                    bug.addMethod(m3).describe(MethodAnnotation.METHOD_OVERRIDDEN);
                                }
                                propertySet.decorateBugInstance(bug);
                                bugReporter.reportBug(bug);


                            }

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                    mm2 = m2;
                } else {
                    mm1 = m2;
                    mm2 = m;
                }
                bugReporter.reportBug(new BugInstance(this, "NM_CONFUSING", LOW_PRIORITY).addClass(mm1.getClassName())
                        .addMethod(mm1).addClass(mm2.getClassName()).addMethod(mm2));
                return true;
            }
        }
        return false;

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        }


        String superClassName = obj.getSuperclassName();
        if (!name.equals("java.lang.Object")) {
            if (sameSimpleName(superClassName, name)) {
                bugReporter.reportBug(new BugInstance(this, "NM_SAME_SIMPLE_NAME_AS_SUPERCLASS", HIGH_PRIORITY).addClass(name)
                        .addClass(superClassName));
            }
            for (String interfaceName : obj.getInterfaceNames()) {
                if (sameSimpleName(interfaceName, name)) {
                    bugReporter.reportBug(new BugInstance(this, "NM_SAME_SIMPLE_NAME_AS_INTERFACE", NORMAL_PRIORITY).addClass(
                            name).addClass(interfaceName));
                }
            }
        }
        if (obj.isInterface()) {

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        classIsPublicOrProtected = obj.isPublic() || obj.isProtected();
        if (Character.isLetter(baseClassName.charAt(0)) && !Character.isUpperCase(baseClassName.charAt(0))
                && baseClassName.indexOf('_') == -1) {
            int priority = classIsPublicOrProtected ? NORMAL_PRIORITY : LOW_PRIORITY;


            bugReporter.reportBug(new BugInstance(this, "NM_CLASS_NAMING_CONVENTION", priority).addClass(this));
        }
        if (name.endsWith("Exception")) {
            // Does it ultimately inherit from Throwable?
            if (!mightInheritFromException(DescriptorFactory.createClassDescriptor(obj))) {
                // It doens't, so the name is misleading
                bugReporter.reportBug(new BugInstance(this, "NM_CLASS_NOT_EXCEPTION", NORMAL_PRIORITY).addClass(this));
            }
        }


        int badFieldNames = 0;
        for (Field f : obj.getFields()) {

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                // messages from Eclipse NLS bundles
                return;
            }
        }
        if (badFieldName(obj)) {
            bugReporter.reportBug(new BugInstance(this, "NM_FIELD_NAMING_CONVENTION", classIsPublicOrProtected
                    && (obj.isPublic() || obj.isProtected()) && !hasBadFieldNames ? NORMAL_PRIORITY : LOW_PRIORITY)
            .addClass(this).addVisitedField(this));
        }
    }

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