VisibleForTesting
182598
void addDistribution(Stream.Builder<WavefrontMetricLineData> metrics, Meter.Id id,
                         List<WavefrontHistogramImpl.Distribution> distributions) {
        String name = getConventionName(id);
        String source = config.source();
        Map<String, String> tags = getTagsAsMap(id);

        for (WavefrontHistogramImpl.Distribution distribution : distributions) {
            try {
                String lineData = Utils.histogramToLineData(name, distribution.centroids,
                    histogramGranularities, distribution.timestamp, source, tags, "unknown");
                metrics.add(new WavefrontMetricLineData(lineData, true));
            } catch (IllegalArgumentException e) {
                logger.error("failed to convert distribution to Wavefront format: " + id.getName(), e);
            }
        }
    }
1239414
@Override
    public void sawOpcode(final int seen) {
        try {
            stack.precomputation(this);

            BitSet regs = localScopeEnds.remove(Integer.valueOf(getPC()));
            if (regs != null) {
                int i = regs.nextSetBit(0);
                while (i >= 0) {
                    localCollections.remove(i);
                    localSourceLineAnnotations.remove(i);
                    i = regs.nextSetBit(i + 1);
                }
            }
            if (seen == Const.INVOKEINTERFACE) {
                String className = getClassConstantOperand();
                if (COLLECTION_CLASSES.contains(className)) {
                    String methodName = getNameConstantOperand();
                    String methodSig = getSigConstantOperand();
                    if ("add".equals(methodName) && SignatureBuilder.SIG_OBJECT_TO_BOOLEAN.equals(methodSig)) {
                        if (stack.getStackDepth() > 1) {
                            OpcodeStack.Item colItm = stack.getStackItem(1);
                            OpcodeStack.Item addItm = stack.getStackItem(0);
                            checkAdd(colItm, addItm);
                        }
                    } else if (("put".equals(methodName) && SignatureBuilder.SIG_TWO_OBJECTS_TO_OBJECT.equals(methodSig)) && (stack.getStackDepth() > 2)) {
                        // For maps, just check the keys
                        OpcodeStack.Item colItm = stack.getStackItem(2);
                        OpcodeStack.Item addItm = stack.getStackItem(1);
                        checkAdd(colItm, addItm);
                    }
                }
            } else if (seen == Const.AASTORE) {
                if (stack.getStackDepth() > 2) {
                    OpcodeStack.Item arrayItm = stack.getStackItem(2);
                    OpcodeStack.Item addItm = stack.getStackItem(0);
                    checkAdd(arrayItm, addItm);
                }
            } else if (OpcodeUtils.isAStore(seen)) {
                Integer reg = Integer.valueOf(RegisterUtils.getAStoreReg(this, seen));
                localCollections.remove(reg);
                localSourceLineAnnotations.remove(reg);
            }
        } catch (ClassNotFoundException cnfe) {
            bugReporter.reportMissingClass(cnfe);
        } finally {
            stack.sawOpcode(this, seen);
        }
    }
715349
@Override
    public void sawOpcode(int seen) {
        switch (state) {
            case SEEN_NOTHING:
                if ((seen == Const.INVOKEINTERFACE) || (seen == Const.INVOKEVIRTUAL)) {
                    String sig = getSigConstantOperand();
                    String returnSig = SignatureUtils.getReturnSignature(sig);
                    if (returnSig.startsWith(Values.SIG_QUALIFIED_CLASS_PREFIX)) {
                        String clsName = getClassConstantOperand();
                        if (!Values.SLASHED_JAVA_LANG_OBJECT.equals(clsName) && !Values.SLASHED_JAVA_LANG_CLASS.equals(clsName)) {
                            returnType = SignatureUtils.trimSignature(returnSig);
                            invokePC = getPC();
                            state = State.SEEN_INVOKE;
                        }
                    }
                }
            break;

            case SEEN_INVOKE:
                if (seen == Const.POP) {
                    state = State.SEEN_POP;
                } else {
                    state = State.SEEN_NOTHING;
                    returnType = null;
                }
            break;

            case SEEN_POP:
                if (((seen >= Const.ACONST_NULL) && (seen <= Const.DCONST_1)) || (seen == Const.GETFIELD)) {
                    state = State.SEEN_POP;
                } else if ((seen == Const.INVOKESTATIC) || (seen == Const.GETSTATIC)) {
                    if (getClassConstantOperand().equals(returnType) && (lnTable.getSourceLine(invokePC) == lnTable.getSourceLine(getPC()))) {
                        bugReporter.reportBug(new BugInstance(this, BugType.NIR_NEEDLESS_INSTANCE_RETRIEVAL.name(), NORMAL_PRIORITY).addClass(this)
                                .addMethod(this).addSourceLine(this));
                    }
                    state = State.SEEN_NOTHING;
                    returnType = null;
                } else {
                    state = State.SEEN_NOTHING;
                    returnType = null;
                }
            break;

            default:
                state = State.SEEN_NOTHING;
                returnType = null;
            break;
        }
    }
1004364
@Override
    public void sawOpcode(int seen) {
        try {
            stack.precomputation(this);

            if ((seen == Const.ARETURN) && (stack.getStackDepth() > 0)) {
                OpcodeStack.Item itm = stack.getStackItem(0);
                if (!itm.isNull()) {
                    returnTypes.put(itm.getJavaClass(), Integer.valueOf(getPC()));
                }
            }
        } catch (ClassNotFoundException cnfe) {
            bugReporter.reportMissingClass(cnfe);
        } finally {
            stack.sawOpcode(this, seen);
        }
    }
1285212
@Override
    public void sawOpcode(int seen) {
        if (seen != Const.INVOKESPECIAL) {
            return;
        }

        String calledClassName = getClassConstantOperand();
        String calledMethodName = getNameConstantOperand();
        String calledMethodSig = getSigConstantOperand();
        if (calledClassName.equals(getSuperclassName()) && calledMethodName.equals(getMethodName())
                && calledMethodSig.equals(getMethodSig())) {
            sawCallToSuper = true;
        }

    }
165989
public void setMinMeasuredValueVisible(final boolean VISIBLE) {
        if (null == minMeasuredValueVisible) {
            _minMeasuredValueVisible = VISIBLE;
            fireUpdateEvent(VISIBILITY_EVENT);
        } else {
            minMeasuredValueVisible.set(VISIBLE);
        }
    }
1088163
@Override
    public void visitCode(final Code obj) {
        if (sourceLines == null) {
            return;
        }

        if (isAbstract) {
            return;
        }

        if (Values.STATIC_INITIALIZER.equals(methodName) || Values.CONSTRUCTOR.equals(methodName)) {
            return;
        }

        int methodStart = srcLineAnnotation.getStartLine() - 2;
        int methodLine = methodStart;
        String line;
        while ((methodLine >= 0) && (methodLine < sourceLines.length)) {
            line = sourceLines[methodLine];
            if (line.indexOf(methodName) >= 0) {
                break;
            }
            methodLine--;
        }

        if (methodLine < 0) {
            return;
        }

        for (int i = methodLine; i <= methodStart; i++) {
            if ((i < 0) || (i >= sourceLines.length)) {
                return;
            }
            line = sourceLines[i];
            if (line.indexOf("final") >= 0) {
                return;
            }
        }

        changedParms = new BitSet();
        super.visitCode(obj);

        BugInstance bi = null;
        for (int i = 0; i < firstLocalReg; i++) {
            if (changedParms.get(i)) {
                changedParms.clear(i);
                continue;
            }

            String parmName = getRegisterName(obj, i);
            if (bi == null) {
                bi = new BugInstance(this, BugType.FP_FINAL_PARAMETERS.name(), LOW_PRIORITY).addClass(this).addMethod(this).addSourceLine(this, 0);
                bugReporter.reportBug(bi);
            }
            bi.addString(parmName);
        }
        changedParms = null;
    }
509463
@Override
    public void sawOpcode(int seen) {

        if (!sawAload0) {
            if (seen == Const.ALOAD_0) {
                sawAload0 = true;
            } else {
                throw new StopOpcodeParsingException();
            }
        } else if (nextParmIndex < parmTypes.length) {
            if (isExpectedParmInstruction(seen, nextParmOffset, parmTypes[nextParmIndex])) {
                nextParmOffset += SignatureUtils.getSignatureSize(parmTypes[nextParmIndex].getSignature());
                nextParmIndex++;
            } else {
                throw new StopOpcodeParsingException();
            }

        } else if (!sawParentCall) {

            if ((seen == Const.INVOKESPECIAL) && getNameConstantOperand().equals(getMethod().getName())
                    && getSigConstantOperand().equals(getMethod().getSignature())) {
                sawParentCall = true;
            } else {
                throw new StopOpcodeParsingException();
            }
        } else {
            int expectedInstruction = getExpectedReturnInstruction(getMethod().getReturnType());
            if ((seen == expectedInstruction) && (getNextPC() == getCode().getCode().length)) {
                bugReporter.reportBug(
                        new BugInstance(this, BugType.COM_PARENT_DELEGATED_CALL.name(), NORMAL_PRIORITY).addClass(this).addMethod(this).addSourceLine(this));
            } else {
                throw new StopOpcodeParsingException();
            }
        }
    }
311454
@Override
    public void sawOpcode(int seen) {
        if (isInitializer) {
            lookForCustomThreadFactoriesInConstructors(seen);
            return;
        }

        try {
            stack.precomputation(this);

            if ((seen == Const.INVOKEVIRTUAL) || (seen == Const.INVOKEINTERFACE)) {
                processInvoke();
            }
            // TODO Should not include private methods
            else if (seen == Const.ARETURN) {
                removeFieldsThatGetReturned();
            } else if (seen == Const.PUTFIELD) {
                XField f = getXFieldOperand();
                if (f != null) {
                    reportOverwrittenField(f);
                }
            } else if (seen == Const.IFNONNULL) {
                // indicates a null check, which means that we get an exemption
                // until the end of the branch
                OpcodeStack.Item nullCheckItem = stack.getStackItem(0);
                XField fieldWhichWasNullChecked = nullCheckItem.getXField();
                if (fieldWhichWasNullChecked != null) {
                    exemptExecutors.put(fieldWhichWasNullChecked, Integer.valueOf(getPC() + getBranchOffset()));
                }
            }
        } finally {
            stack.sawOpcode(this, seen);
        }
    }
646373
@Override
    public int w(String tag, Throwable tr) {
        return Log.w(tag, tr);
    }
1203300
@Override
    public boolean isReadOnly(ELContext context)
            throws PropertyNotFoundException, ELException {
        EvaluationContext ctx = new EvaluationContext(context, this.fnMapper,
                this.varMapper);
        context.notifyBeforeEvaluation(getExpressionString());
        boolean result = this.getNode().isReadOnly(ctx);
        context.notifyAfterEvaluation(getExpressionString());
        return result;
    }
194587
@edu.umd.cs.findbugs.annotations.SuppressFBWarnings(value = "CLI_CONSTANT_LIST_INDEX", justification = "Constrained by FindBugs API")
    @Override
    public void sawOpcode(int seen) {

        PSCUserValue userValue = null;
        boolean sawAlloc = false;

        try {
            stack.precomputation(this);

            switch (seen) {
                case Const.INVOKESPECIAL:
                    String clsName = getClassConstantOperand();
                    if (PRESIZEABLE_COLLECTIONS.contains(clsName)) {
                        String methodName = getNameConstantOperand();
                        if (Values.CONSTRUCTOR.equals(methodName)) {
                            String signature = getSigConstantOperand();
                            if (SignatureBuilder.SIG_VOID_TO_VOID.equals(signature)) {
                                userValue = new PSCUserValue(Integer.valueOf(nextAllocNumber++));
                                sawAlloc = true;
                            } else if (guavaOnPath && (stack.getStackDepth() > 0)) {
                                FQMethod fqMethod = new FQMethod(clsName, methodName, signature);
                                if (HASHMAP_SIZED_CTOR.equals(fqMethod) || HASHSET_SIZED_CTOR.equals(fqMethod)) {
                                    OpcodeStack.Item itm = stack.getStackItem(0);
                                    XMethod xm = itm.getReturnValueOf();
                                    if ((xm != null) && "size".equals(xm.getMethodDescriptor().getName())) {
                                        bugReporter.reportBug(new BugInstance(this, BugType.PSC_SUBOPTIMAL_COLLECTION_SIZING.name(), NORMAL_PRIORITY)
                                                .addClass(this).addMethod(this).addSourceLine(this));
                                    }
                                }
                            }
                        }
                    }
                break;

                case Const.INVOKEINTERFACE:
                    String methodName = getNameConstantOperand();

                    if (ITERATOR_METHOD.equals(new QMethod(methodName, getSigConstantOperand()))) {
                        if (stack.getStackDepth() > 0) {
                            OpcodeStack.Item itm = stack.getStackItem(0);
                            userValue = isSizedSource(itm);
                        }
                    } else if (ITERATOR_HASNEXT.equals(new FQMethod(getClassConstantOperand(), methodName, getSigConstantOperand()))) {
                        if (stack.getStackDepth() > 0) {
                            OpcodeStack.Item itm = stack.getStackItem(0);
                            userValue = (PSCUserValue) itm.getUserValue();
                        }
                    } else if ("add".equals(methodName) || "addAll".equals(methodName)) {
                        String signature = getSigConstantOperand();
                        int numArguments = SignatureUtils.getNumParameters(signature);
                        if ((numArguments == 1) && (stack.getStackDepth() > 1)) {
                            OpcodeStack.Item item = stack.getStackItem(1);
                            PSCUserValue uv = (PSCUserValue) item.getUserValue();
                            if (uv != null) {
                                Integer allocNum = uv.getAllocationNumber();
                                if (allocNum != null) {
                                    if ("addAll".equals(methodName)) {
                                        allocToAddPCs.remove(allocNum);
                                    } else {
                                        List<Integer> lines = allocToAddPCs.get(allocNum);
                                        if (lines == null) {
                                            lines = new ArrayList<>();
                                            allocToAddPCs.put(allocNum, lines);
                                        }
                                        lines.add(Integer.valueOf(getPC()));
                                    }
                                }
                            }
                        }
                    } else if ("put".equals(methodName) || "putAll".equals(methodName)) {
                        String signature = getSigConstantOperand();
                        int numArguments = SignatureUtils.getNumParameters(signature);
                        if ((numArguments == 2) && (stack.getStackDepth() > 2)) {
                            OpcodeStack.Item item = stack.getStackItem(2);
                            PSCUserValue uv = (PSCUserValue) item.getUserValue();
                            if (uv != null) {
                                Integer allocNum = uv.getAllocationNumber();
                                if (allocNum != null) {
                                    if ("putAll".equals(methodName)) {
                                        allocToAddPCs.remove(allocNum);
                                    } else {
                                        List<Integer> lines = allocToAddPCs.get(allocNum);
                                        if (lines == null) {
                                            lines = new ArrayList<>();
                                            allocToAddPCs.put(allocNum, lines);
                                        }
                                        lines.add(Integer.valueOf(getPC()));
                                    }
                                }
                            }
                        }
                    }
                break;

                case Const.INVOKESTATIC:
                    FQMethod fqm = new FQMethod(getClassConstantOperand(), getNameConstantOperand(), getSigConstantOperand());
                    if (STATIC_COLLECTION_FACTORIES.contains(fqm)) {
                        userValue = new PSCUserValue(Integer.valueOf(nextAllocNumber++));
                        sawAlloc = true;
                    }
                break;

                case Const.LOOKUPSWITCH:
                case Const.TABLESWITCH:
                    int[] offsets = getSwitchOffsets();
                    if (offsets.length >= 2) {
                        int pc = getPC();
                        int thisOffset = pc + offsets[0];
                        for (int o = 0; o < (offsets.length - 1); o++) {
                            int nextOffset = offsets[o + 1] + pc;
                            CodeRange db = new CodeRange(thisOffset, nextOffset, false);
                            optionalRanges.add(db);
                            thisOffset = nextOffset;
                        }
                    }
                break;

                case Const.IFEQ:
                case Const.IFNE:
                case Const.IFLT:
                case Const.IFLE:
                case Const.IF_ICMPEQ:
                case Const.IF_ICMPNE:
                case Const.IF_ICMPLT:
                case Const.IF_ICMPGE:
                case Const.IF_ICMPGT:
                case Const.IF_ICMPLE:
                case Const.IF_ACMPEQ:
                case Const.IF_ACMPNE:
                case Const.GOTO:
                case Const.GOTO_W:
                    if (getBranchOffset() < 0) {

                        if (branchBasedOnUnsizedObject(seen)) {
                            break;
                        }

                        int target = getBranchTarget();
                        Iterator<Map.Entry<Integer, List<Integer>>> it = allocToAddPCs.entrySet().iterator();
                        while (it.hasNext()) {
                            Map.Entry<Integer, List<Integer>> entry = it.next();
                            Integer allocLoc = allocLocation.get(entry.getKey());
                            if ((allocLoc != null) && (allocLoc.intValue() < target)) {
                                List<Integer> pcs = entry.getValue();
                                for (int pc : pcs) {
                                    if (pc > target) {
                                        if (hasSinglePossiblySizedBranch(allocLoc.intValue(), pc)) {
                                            bugReporter.reportBug(new BugInstance(this, BugType.PSC_PRESIZE_COLLECTIONS.name(), NORMAL_PRIORITY).addClass(this)
                                                    .addMethod(this).addSourceLine(this, pc));
                                            it.remove();
                                        }
                                        break;
                                    }
                                }
                            }
                        }
                    } else {
                        CodeRange db = new CodeRange(getPC(), getBranchTarget(), !branchBasedOnUnsizedObject(seen));
                        optionalRanges.add(db);
                    }
                break;

                case Const.IFNULL:
                case Const.IFNONNULL:
                case Const.IFGE:
                case Const.IFGT:
                    // null check and >, >= branches are hard to presize
                    if (getBranchOffset() > 0) {
                        CodeRange db = new CodeRange(getPC(), getBranchTarget(), false);
                        optionalRanges.add(db);
                    }
                break;

                case Const.ASTORE:
                case Const.ASTORE_0:
                case Const.ASTORE_1:
                case Const.ASTORE_2:
                case Const.ASTORE_3: {
                    if (stack.getStackDepth() > 0) {
                        PSCUserValue uv = (PSCUserValue) stack.getStackItem(0).getUserValue();
                        if (uv != null) {
                            storeToUserValue.put(getRegisterOperand(), uv);
                        }
                    }
                }
                break;

                case Const.ALOAD:
                case Const.ALOAD_0:
                case Const.ALOAD_1:
                case Const.ALOAD_2:
                case Const.ALOAD_3: {
                    userValue = storeToUserValue.get(getRegisterOperand());
                }
                break;

                case Const.PUTFIELD: {
                    if (stack.getStackDepth() > 0) {
                        PSCUserValue uv = (PSCUserValue) stack.getStackItem(0).getUserValue();
                        if (uv != null) {
                            storeToUserValue.put(getNameConstantOperand(), uv);
                        }
                    }
                }
                break;

                case Const.GETFIELD: {
                    userValue = storeToUserValue.get(getNameConstantOperand());
                }
                break;

            }
        } finally {
            stack.sawOpcode(this, seen);
            if ((userValue != null) && (stack.getStackDepth() > 0)) {
                OpcodeStack.Item item = stack.getStackItem(0);
                item.setUserValue(userValue);
                if (sawAlloc) {
                    allocLocation.put(userValue.getAllocationNumber(), Integer.valueOf(getPC()));
                }
            }
        }
    }
328554
@Override
    public void sawOpcode(int seen) {
        if (seen == Const.INVOKEVIRTUAL) {
            String className = getClassConstantOperand();
            String methodName = getNameConstantOperand();
            String methodSig = getSigConstantOperand();

            FQMethod methodInfo = new FQMethod(className, methodName, methodSig);
            if (oldMethods.contains(methodInfo)) {
                bugReporter.reportBug(new BugInstance(this, BugType.NCMU_NON_COLLECTION_METHOD_USE.name(), NORMAL_PRIORITY).addClass(this).addMethod(this)
                        .addSourceLine(this));
            }
        }
    }
487050
public static String evaluateExpression(
				List<String> expressionToken, String[] delimiters,
				String[] validValues, String visibilityLevel, String display)
	{
		if ("visible".equals(visibilityLevel)) {
		display = (display == null || display.trim().isEmpty()) ? "" : "-" + display;
		}
		else {
			// hidden is not suffixed by -block, -inline or -inline-block
			display="";
		}
		String finalExpr = "";
		List<String> _valid = Arrays.asList(validValues);

		// Validate expression
		//
		// expression can be:
		// ONE SIZE: [size]
		// SIZE LIST: [size],[size],...,[size]
		// RANGE FROM: ...[size] or [size]... to get range (only inclusive)
		// RANGE BETWEEN: [size]...[size]

		// 1. Only one size:
		if(expressionToken.size() == 1)
		{
			finalExpr = " " + visibilityLevel + "-" + translateSize(expressionToken.get(0), true) + display;
		}
		// 2. Expression contains comma, so is a list of sizes
		else if (expressionToken.contains(","))
		{
			for(String ex: expressionToken) {
				if(",".equals(ex)) continue;

				finalExpr += " " + visibilityLevel + "-" + translateSize(ex, true) + display + " ";
			}
		}
		// 3. Expression is a range from
		else if (expressionToken.size() == 2) {
			if(expressionToken.get(0).equals("...")) {
				if(!_valid.contains(expressionToken.get(1)))
					throw new FacesException("Expression not valid. Valid syntax is ...[size] eg. ...sm . Valid sizes are [ xs, sm, md, lg ].");

				List<String> sR = getSizeRange("<=", translateSize(expressionToken.get(1), false));
				for(String s: sR) {
					finalExpr += " " + visibilityLevel + "-" + s + display + " ";
				}
			} else if(expressionToken.get(1).equals("...")) {
				if(!_valid.contains(expressionToken.get(0)))
					throw new FacesException("Expression not valid. Valid syntax is [size]... eg. sm... . Valid sizes are [ xs, sm, md, lg ].");

				List<String> sR = getSizeRange(">=", translateSize(expressionToken.get(0), false));
				for(String s: sR) {
					finalExpr += " " + visibilityLevel + "-" + s + display + " ";
				}
			} else {
				throw new FacesException("Expression not valid. Valid syntax is ...[size] or [size]... . Valid sizes are [ xs, sm, md, lg ].");
			}
		}
		// 4. Expression is in range
		else if(expressionToken.size() == 3) {
			// validation:
			if(!_valid.contains(expressionToken.get(0)) && !"...".equals(expressionToken.get(1)) && !_valid.contains(expressionToken.get(2)))
				throw new FacesException("Expression not valid. Valid syntax is [size]...[size] eg. xs...md . Valid sizes are [ xs, sm, md, lg ].");

			List<String> sR2 = getSizeRange(expressionToken.get(1), translateSize(expressionToken.get(0), false), translateSize(expressionToken.get(2), false));
			for(String s: sR2) {
				finalExpr += " " + visibilityLevel + "-" + s + display + " ";
			}
		}
		// 5. Otherwise
		else {
			throw new FacesException("Expression not valid. See the docs for a list of possibile rules.");
		}

		return finalExpr;
	}
788553
@Override
    public void sawOpcode(int seen) {
        if (seen == Const.PUTFIELD) {
            OpcodeStack stack = getStack();
            if (stack.getStackDepth() > 0) {
                int reg = stack.getStackItem(0).getRegisterNumber();
                if ((reg >= 0) && (reg < firstLocalRegister)) {
                    clearSpecialField(getNameConstantOperand());
                }
            }
        }
        super.sawOpcode(seen);
    }
418410
@Override
    public void sawOpcode(int seen) {
        if (seen != Const.INVOKESPECIAL) {
            sawOpenInAppendMode = false;
            return;
        }
        String calledClassName = getClassConstantOperand();
        String calledMethodName = getNameConstantOperand();
        String calledMethodSig = getSigConstantOperand();
        if (!sawOpenInAppendMode) {
            if ("java/io/ObjectOutputStream".equals(calledClassName) && Const.CONSTRUCTOR_NAME.equals(calledMethodName)
                    && "(Ljava/io/OutputStream;)V".equals(calledMethodSig)
                    && 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 ("java/io/FileOutputStream".equals(calledClassName) && Const.CONSTRUCTOR_NAME.equals(calledMethodName)
                && ("(Ljava/io/File;Z)V".equals(calledMethodSig) || "(Ljava/lang/String;Z)V".equals(calledMethodSig))) {
            OpcodeStack.Item item = stack.getStackItem(0);
            Object value = item.getConstant();
            sawOpenInAppendMode = value instanceof Integer && ((Integer) value).intValue() == 1;
        } else if ("java/io/BufferedOutputStream".equals(calledClassName) && Const.CONSTRUCTOR_NAME.equals(calledMethodName)
                && "(Ljava/io/OutputStream;)V".equals(calledMethodSig)) {
            // do nothing

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

    }
754522
@Override
    public void sawOpcode(int seen) {
        try {
            stack.precomputation(this);

            if (seen == Const.INVOKEINTERFACE) {
                KeyType type = isKeyAccessMethod(seen);
                if (type != null) {
                    int numParms = SignatureUtils.getNumParameters(getSigConstantOperand());
                    if (stack.getStackDepth() >= numParms) {
                        OpcodeStack.Item item = stack.getStackItem(numParms - 1);
                        String parmName = (String) item.getConstant();
                        if (parmName != null) {
                            String upperParmName = parmName.toUpperCase(Locale.getDefault());
                            Map<String, Map<String, List<SourceInfo>>> typeMap = parmInfo.get(KeyType.PARAMETER);
                            Map<String, List<SourceInfo>> parmCaseInfo = typeMap.get(upperParmName);
                            if (parmCaseInfo == null) {
                                parmCaseInfo = new HashMap<>();
                                typeMap.put(upperParmName, parmCaseInfo);
                            }

                            List<SourceInfo> annotations = parmCaseInfo.get(parmName);
                            if (annotations == null) {
                                annotations = new ArrayList<>();
                                parmCaseInfo.put(parmName, annotations);
                            }

                            annotations.add(new SourceInfo(getClassName(), getMethodName(), getMethodSig(), getMethod().isStatic(),
                                    SourceLineAnnotation.fromVisitedInstruction(getClassContext(), this, getPC())));
                        }
                    }
                }
            }
        } finally {
            stack.sawOpcode(this, seen);
        }
    }