Java Code Examples for org.apache.bcel.Const#ALOAD_0

@Override
public void sawOpcode(int seen) {
    if (state == 0 && seen == Const.ALOAD_0) {
        state++;
    } else if (state == 1 && seen == Const.ACONST_NULL) {
        state++;
    } else if (state == 2 && seen == Const.PUTFIELD) {
        bugAccumulator.accumulateBug(
                new BugInstance(this, "FI_FINALIZER_NULLS_FIELDS", NORMAL_PRIORITY).addClassAndMethod(this)
                        .addReferencedField(this), this);
        sawFieldNulling = true;
        state = 0;
    } else if (seen == Const.RETURN) {
        state = 0;
    } else {
        state = 0;
        sawAnythingElse = true;
    }
}
 

@Override
public void sawOpcode(int seen) {
    switch (state) {
    case SEEN_NOTHING:
        if (seen == Const.ALOAD_0) {
            state = SEEN_ALOAD_0;
        }
        break;

    case SEEN_ALOAD_0:
        if ((seen == Const.INVOKESPECIAL) && (getNameConstantOperand().equals(getMethodName()))
                && (getSigConstantOperand().equals("()V"))) {
            sawSuperCall = true;
        }
        state = SEEN_NOTHING;
        break;
    default:
        state = SEEN_NOTHING;
    }
}
 

private static boolean check(InstructionHandle h, int[] opcodes) {
    for (int opcode : opcodes) {
        if (h == null) {
            return false;
        }
        short opcode2 = h.getInstruction().getOpcode();
        if (opcode == Const.LDC) {
            switch (opcode2) {
            case Const.LDC:
            case Const.ALOAD:
            case Const.ALOAD_0:
            case Const.ALOAD_1:
            case Const.ALOAD_2:
            case Const.ALOAD_3:
                break;
            default:
                return false;
            }
        } else if (opcode2 != opcode) {
            return false;
        }
        h = h.getNext();
    }
    return true;
}
 

/**
 * @param handle instruction handle which loads the object for further GETFIELD/PUTFIELD operation
 * @return true if this object is known to be non-null
 */
private boolean isSafeFieldSource(InstructionHandle handle) {
    while (handle != null && handle.getInstruction().getOpcode() == Const.DUP) {
        // Some compilers generate DUP for field increment code like
        // ALOAD_0 / DUP / GETFIELD x / ICONST_1 / IADD / PUTFIELD x
        handle = handle.getPrev();
    }
    if (handle == null) {
        return false;
    }
    Instruction inst = handle.getInstruction();
    if (inst.getOpcode() == Const.ALOAD_0) {
        return true;
    }
    return inst instanceof GETFIELD && ((GETFIELD) inst).getFieldName(cpg).startsWith("this$");
}
 

@Override
public void sawOpcode(int seen) {
    if (alreadyReported) {
        return;
    }

    switch (state) {
    case SEEN_NOTHING:
        if (seen == Const.ALOAD_0) {
            state = SEEN_ALOAD_0;
        }
        break;

    case SEEN_ALOAD_0:
        if ((seen == Const.INVOKEVIRTUAL) && "java/lang/Object".equals(getClassConstantOperand())) {
            String methodName = getNameConstantOperand();
            if ("wait".equals(methodName) || "notify".equals(methodName) || "notifyAll".equals(methodName)) {
                bugReporter.reportBug(new BugInstance(this, "PS_PUBLIC_SEMAPHORES", NORMAL_PRIORITY).addClassAndMethod(this)
                        .addSourceLine(this));
                alreadyReported = true;
            }
        }
        state = SEEN_NOTHING;
        break;
    default:
        break;
    }

}
 

@Override
public void sawOpcode(int seen) {

    switch (seen) {
    case Const.ALOAD_0:
        thisOnTOS = true;
        return;
    case Const.MONITOREXIT:
        setFields.clear();
        break;
    case Const.PUTFIELD:
        if (getClassConstantOperand().equals(getClassName())) {
            setFields.add(getNameConstantOperand());
        }
        break;
    case Const.GETFIELD:
        if (thisOnTOS && getClassConstantOperand().equals(getClassName()) && setFields.contains(getNameConstantOperand())
                && asUnsignedByte(codeBytes[getPC() + 3]) == Const.DUP && asUnsignedByte(codeBytes[getPC() + 5]) == Const.MONITORENTER

                && !finalFields.contains(getNameConstantOperand())) {
            bugReporter.reportBug(new BugInstance(this, "ML_SYNC_ON_UPDATED_FIELD", NORMAL_PRIORITY).addClassAndMethod(this)
                    .addReferencedField(this).addSourceLine(this, getPC() + 5));
        }
        break;
    default:
        break;
    }
    thisOnTOS = false;
}
 

@Override
public void sawOpcode(int seen) {

    // System.out.println("PC: " + PC + ", stage: " + stage1);
    switch (seen) {
    case Const.ALOAD_0:
    case Const.ALOAD_1:
    case Const.ALOAD_2:
    case Const.ALOAD_3:
    case Const.ALOAD:
        if (DEBUG) {
            System.out.println("   ALOAD at PC " + getPC());
        }
        start = getPC();
        stage = 1;
        break;
    case Const.GETSTATIC:
        if (DEBUG) {
            System.out.println("   getfield in stage " + stage);
        }
        lastFieldSeen = FieldAnnotation.fromReferencedField(this);
        start = getPC();
        stage = 2;
        break;
    case Const.GETFIELD:
        if (DEBUG) {
            System.out.println("   getfield in stage " + stage);
        }
        lastFieldSeen = FieldAnnotation.fromReferencedField(this);
        if (stage == 1 || stage == 2) {
            stage = 2;
        } else {
            stage = 0;
        }
        break;
    case Const.GOTO:
    case Const.IFNE:
    case Const.IFEQ:
    case Const.IFNULL:
    case Const.IFNONNULL:
        if (DEBUG) {
            System.out.println("   conditional branch in stage " + stage + " to " + getBranchTarget());
        }
        if (stage == 2 && getBranchTarget() == start) {
            bugReporter.reportBug(new BugInstance(this, "SP_SPIN_ON_FIELD", NORMAL_PRIORITY).addClassAndMethod(this)
                    .addReferencedField(lastFieldSeen).addSourceLine(this, start));
            stage = 0;
        } else if (getBranchTarget() < getPC()) {
            stage = 0;
        }
        break;
    default:
        stage = 0;
        break;
    }

}
 

@Override
public void sawOpcode(int seen) {
    if (!inConstructor) {
        return;
    }
    if (uninitializedFieldReadAndCheckedForNonnull != null) {
        if (seen == Const.NEW && getClassConstantOperand().endsWith("Exception")) {
            uninitializedFieldReadAndCheckedForNonnull.raisePriority();
        }
        uninitializedFieldReadAndCheckedForNonnull = null;
    }

    if (seen == Const.ALOAD_0) {
        thisOnTOS = true;
        return;
    }

    if (seen == Const.PUTFIELD && getClassConstantOperand().equals(getClassName())) {
        initializedFields.add(FieldAnnotation.fromReferencedField(this));
    } else if (thisOnTOS && seen == Const.GETFIELD && getClassConstantOperand().equals(getClassName())) {
        UnreadFieldsData unreadFields = AnalysisContext.currentAnalysisContext().getUnreadFieldsData();
        XField xField = XFactory.createReferencedXField(this);
        FieldAnnotation f = FieldAnnotation.fromReferencedField(this);
        int nextOpcode = 0xff & codeBytes[getPC() + 3];
        if (nextOpcode != Const.POP && !initializedFields.contains(f) && declaredFields.contains(f) && !containerFields.contains(f)
                && !unreadFields.isContainerField(xField)) {
            // System.out.println("Next opcode: " +
            // Const.getOpcodeName(nextOpcode));
            LocalVariableAnnotation possibleTarget = LocalVariableAnnotation.findMatchingIgnoredParameter(getClassContext(),
                    getMethod(), getNameConstantOperand(), xField.getSignature());
            if (possibleTarget == null) {
                possibleTarget = LocalVariableAnnotation.findUniqueBestMatchingParameter(getClassContext(), getMethod(),
                        getNameConstantOperand(), getSigConstantOperand());
            }
            int priority = unreadFields.getReadFields().contains(xField) ? NORMAL_PRIORITY : LOW_PRIORITY;
            boolean priorityLoweredBecauseOfIfNonnullTest = false;
            if (possibleTarget != null) {
                priority--;
            } else {
                FieldSummary fieldSummary = AnalysisContext.currentAnalysisContext().getFieldSummary();
                if (fieldSummary.callsOverriddenMethodsFromSuperConstructor(getClassDescriptor())) {
                    priority++;
                } else if (nextOpcode == Const.IFNONNULL) {
                    priority++;
                    priorityLoweredBecauseOfIfNonnullTest = true;
                }
            }

            BugInstance bug = new BugInstance(this, "UR_UNINIT_READ", priority).addClassAndMethod(this).addField(f)
                    .addOptionalAnnotation(possibleTarget).addSourceLine(this);
            pendingBugs.add(bug);
            if (priorityLoweredBecauseOfIfNonnullTest) {
                uninitializedFieldReadAndCheckedForNonnull = bug;
            }
            initializedFields.add(f);
        }
    } else if ((seen == Const.INVOKESPECIAL && !(Const.CONSTRUCTOR_NAME.equals(getNameConstantOperand()) && !getClassConstantOperand().equals(
            getClassName())))
            || (seen == Const.INVOKESTATIC && "doPrivileged".equals(getNameConstantOperand()) && "java/security/AccessController".equals(
                    getClassConstantOperand()))
            || (seen == Const.INVOKEVIRTUAL && getClassConstantOperand().equals(getClassName()))
            || (seen == Const.INVOKEVIRTUAL && "start".equals(getNameConstantOperand()))) {

        inConstructor = false;
    }

    thisOnTOS = false;
}
 

@Override
public void sawOpcode(int seen) {

    if (state == SEEN_POSSIBLE_THREAD) {
        if (seen == Const.POP) {
            state = SEEN_UNKNOWNCONTEXT_POP;
            return;
        } else {
            state = SEEN_NOTHING;
        }
    }
    switch (state) {
    case SEEN_NOTHING:
        if ((seen == Const.INVOKESTATIC) && "java/lang/Thread".equals(getClassConstantOperand())
                && "currentThread".equals(getNameConstantOperand()) && "()Ljava/lang/Thread;".equals(getSigConstantOperand())) {
            state = SEEN_CURRENTTHREAD;
        } else if ((seen == Const.INVOKESTATIC || seen == Const.INVOKEINTERFACE || seen == Const.INVOKEVIRTUAL || seen == Const.INVOKESPECIAL)
                && getSigConstantOperand().endsWith("Ljava/lang/Thread;")) {
            state = SEEN_POSSIBLE_THREAD;
        } else if (seen == Const.ALOAD) {
            if (localsWithCurrentThreadValue.get(getRegisterOperand())) {
                state = SEEN_CURRENTTHREAD;
            } else {
                state = SEEN_POSSIBLE_THREAD;
            }
        } else if ((seen >= Const.ALOAD_0) && (seen <= Const.ALOAD_3)) {
            if (localsWithCurrentThreadValue.get(seen - Const.ALOAD_0)) {
                state = SEEN_CURRENTTHREAD;
            } else {
                state = SEEN_POSSIBLE_THREAD;
            }
        } else if ((seen == Const.GETFIELD || seen == Const.GETSTATIC) && "Ljava/lang/Thread;".equals(getSigConstantOperand())) {
            state = SEEN_POSSIBLE_THREAD;
        }
        break;

    case SEEN_CURRENTTHREAD:
        if (seen == Const.POP) {
            state = SEEN_POP_AFTER_CURRENTTHREAD;
        } else if (seen == Const.ASTORE) {
            localsWithCurrentThreadValue.set(getRegisterOperand());
            state = SEEN_NOTHING;
        } else if ((seen >= Const.ASTORE_0) && (seen <= Const.ASTORE_3)) {
            localsWithCurrentThreadValue.set(seen - Const.ASTORE_0);
            state = SEEN_NOTHING;
        } else {
            state = SEEN_NOTHING;
        }
        break;

    default:
        if ((seen == Const.INVOKESTATIC) && "java/lang/Thread".equals(getClassConstantOperand())
                && "interrupted".equals(getNameConstantOperand()) && "()Z".equals(getSigConstantOperand())) {
            if (state == SEEN_POP_AFTER_CURRENTTHREAD) {
                bugReporter.reportBug(new BugInstance(this, "STI_INTERRUPTED_ON_CURRENTTHREAD", LOW_PRIORITY)
                        .addClassAndMethod(this).addSourceLine(this));
            } else if (state == SEEN_UNKNOWNCONTEXT_POP) {
                bugReporter.reportBug(new BugInstance(this, "STI_INTERRUPTED_ON_UNKNOWNTHREAD", NORMAL_PRIORITY)
                        .addClassAndMethod(this).addSourceLine(this));
            }
        }
        state = SEEN_NOTHING;
        break;
    }
}
 

@Override
public void sawOpcode(int seen) {
    // System.out.println(state + " " + getPC() + " " + Const.getOpcodeName(seen));
    if (countDown == 2 && seen == Const.GOTO) {
        CodeException tryBlock = getSurroundingTryBlock(getPC());
        if (tryBlock != null && tryBlock.getEndPC() == getPC()) {
            pendingBug.lowerPriority();
        }
    }
    if (countDown > 0) {
        countDown--;
        if (countDown == 0) {
            if (seen == Const.MONITOREXIT) {
                pendingBug.lowerPriority();
            }

            bugReporter.reportBug(pendingBug);
            pendingBug = null;
        }
    }
    if (seen == Const.PUTFIELD) {

        if (syncField != null && getPrevOpcode(1) != Const.ALOAD_0 && syncField.equals(getXFieldOperand())) {
            OpcodeStack.Item value = stack.getStackItem(0);
            int priority = Priorities.HIGH_PRIORITY;
            if (value.isNull()) {
                priority = Priorities.NORMAL_PRIORITY;
            }
            pendingBug = new BugInstance(this, "ML_SYNC_ON_FIELD_TO_GUARD_CHANGING_THAT_FIELD", priority)
                    .addClassAndMethod(this).addField(syncField).addSourceLine(this);
            countDown = 2;

        }

    }
    if (seen == Const.MONITOREXIT) {
        pendingBug = null;
        countDown = 0;
    }

    if (seen == Const.MONITORENTER) {
        syncField = null;
    }

    switch (state) {
    case 0:
        if (seen == Const.ALOAD_0) {
            state = 1;
        }
        break;
    case 1:
        if (seen == Const.GETFIELD) {
            state = 2;
            field = getXFieldOperand();
        } else {
            state = 0;
        }
        break;
    case 2:
        if (seen == Const.DUP) {
            state = 3;
        } else {
            state = 0;
        }
        break;
    case 3:
        if (isRegisterStore()) {
            state = 4;
        } else {
            state = 0;
        }
        break;
    case 4:
        if (seen == Const.MONITORENTER) {
            state = 0;
            syncField = field;
        } else {
            state = 0;
        }
        break;
    default:
        break;
    }

}
 

@Override
public void sawOpcode(int seen) {
    switch (state) {
    case SEEN_NOTHING:
        if (seen == Const.ALOAD) {
            register = getRegisterOperand();
        } else if ((seen >= Const.ALOAD_0) && (seen <= Const.ALOAD_3)) {
            register = seen - Const.ALOAD_0;
        } else {
            return;
        }
        state = SEEN_ALOAD;
        break;

    case SEEN_ALOAD:
        try {
            if (seen == Const.INSTANCEOF) {
                LocalVariable lv = LVTHelper.getLocalVariableAtPC(varTable, register, getPC());
                if (lv != null) {
                    String objSignature = lv.getSignature();
                    if (objSignature.charAt(0) == 'L') {
                        objSignature = objSignature.substring(1, objSignature.length() - 1).replace('/', '.');
                        String clsSignature = getDottedClassConstantOperand();

                        if (clsSignature.charAt(0) != '[') {
                            if (org.apache.bcel.Repository.instanceOf(objSignature, clsSignature)) {
                                bugReporter.reportBug(new BugInstance(this, "SIO_SUPERFLUOUS_INSTANCEOF", LOW_PRIORITY)
                                        .addClassAndMethod(this).addSourceLine(this));
                            }
                        }
                    }
                }
            }
        } catch (ClassNotFoundException cnfe) {
            bugReporter.reportMissingClass(cnfe);
        }

        state = SEEN_NOTHING;
        break;
    default:
        break;
    }

}
 

@Override
public void visitCode(Code obj) {
    try {
        String methodName = getMethodName();

        if (!Const.CONSTRUCTOR_NAME.equals(methodName) && !"clone".equals(methodName)
                && ((getMethod().getAccessFlags() & (Const.ACC_STATIC | Const.ACC_SYNTHETIC)) == 0)) {

            /*
             * for some reason, access flags doesn't return Synthetic, so do
             * this hocus pocus
             */
            Attribute[] atts = getMethod().getAttributes();
            for (Attribute att : atts) {
                if (att.getClass().equals(Synthetic.class)) {
                    return;
                }
            }

            byte[] codeBytes = obj.getCode();
            if ((codeBytes.length == 0) || (codeBytes[0] != Const.ALOAD_0)) {
                return;
            }

            state = State.SEEN_NOTHING;
            invokePC = 0;
            super.visitCode(obj);
            if ((state == State.SEEN_RETURN) && (invokePC != 0)) {
                // Do this check late, as it is potentially expensive
                Method superMethod = findSuperclassMethod(superclassName, getMethod());
                if ((superMethod == null) || differentAttributes(getMethod(), superMethod)
                        || getMethod().isProtected()
                                && !samePackage(getDottedClassName(), superclassName)) {
                    return;
                }

                bugReporter.reportBug(new BugInstance(this, "USM_USELESS_SUBCLASS_METHOD", LOW_PRIORITY).addClassAndMethod(
                        this).addSourceLine(this, invokePC));
            }
        }
    } catch (ClassNotFoundException cnfe) {
        bugReporter.reportMissingClass(cnfe);
    }
}
 

@Override
public void sawOpcode(int seen) {
    switch (state) {
    case SEEN_NOTHING:
        if (seen == Const.ALOAD_0) {
            argTypes = Type.getArgumentTypes(this.getMethodSig());
            curParm = 0;
            curParmOffset = 1;
            if (argTypes.length > 0) {
                state = State.SEEN_PARM;
            } else {
                state = State.SEEN_LAST_PARM;
            }
        } else {
            state = State.SEEN_INVALID;
        }
        break;

    case SEEN_PARM:
        if (curParm >= argTypes.length) {
            state = State.SEEN_INVALID;
        } else {
            String signature = argTypes[curParm++].getSignature();
            char typeChar0 = signature.charAt(0);
            if ((typeChar0 == 'L') || (typeChar0 == '[')) {
                checkParm(seen, Const.ALOAD_0, Const.ALOAD, 1);
            } else if (typeChar0 == 'D') {
                checkParm(seen, Const.DLOAD_0, Const.DLOAD, 2);
            } else if (typeChar0 == 'F') {
                checkParm(seen, Const.FLOAD_0, Const.FLOAD, 1);
            } else if (typeChar0 == 'I' || typeChar0 == 'Z' || typeChar0 == 'S' || typeChar0 == 'C') {
                checkParm(seen, Const.ILOAD_0, Const.ILOAD, 1);
            } else if (typeChar0 == 'J') {
                checkParm(seen, Const.LLOAD_0, Const.LLOAD, 2);
            } else {
                state = State.SEEN_INVALID;
            }

            if ((state != State.SEEN_INVALID) && (curParm >= argTypes.length)) {
                state = State.SEEN_LAST_PARM;
            }

        }
        break;

    case SEEN_LAST_PARM:
        if ((seen == Const.INVOKENONVIRTUAL) && getMethodName().equals(getNameConstantOperand())
                && getMethodSig().equals(getSigConstantOperand())) {
            invokePC = getPC();
            state = State.SEEN_INVOKE;
        } else {
            state = State.SEEN_INVALID;
        }
        break;

    case SEEN_INVOKE:
        Type returnType = getMethod().getReturnType();
        char retSigChar0 = returnType.getSignature().charAt(0);
        if ((retSigChar0 == 'V') && (seen == Const.RETURN)) {
            state = State.SEEN_RETURN;
        } else if (((retSigChar0 == 'L') || (retSigChar0 == '[')) && (seen == Const.ARETURN)) {
            state = State.SEEN_RETURN;
        } else if ((retSigChar0 == 'D') && (seen == Const.DRETURN)) {
            state = State.SEEN_RETURN;
        } else if ((retSigChar0 == 'F') && (seen == Const.FRETURN)) {
            state = State.SEEN_RETURN;
        } else if ((retSigChar0 == 'I' || retSigChar0 == 'S' || retSigChar0 == 'C' || retSigChar0 == 'B' || retSigChar0 == 'Z')
                && (seen == Const.IRETURN)) {
            state = State.SEEN_RETURN;
        } else if ((retSigChar0 == 'J') && (seen == Const.LRETURN)) {
            state = State.SEEN_RETURN;
        } else {
            state = State.SEEN_INVALID;
        }
        break;

    case SEEN_RETURN:
        state = State.SEEN_INVALID;
        break;
    default:
        break;
    }
}
 

@Override
public void sawOpcode(int seen) {
    // System.out.println("State:" + state);
    if (seen == Const.GOTO && getBranchOffset() == 4) {
        state = SEEN_GOTO;
    } else {
        switch (state) {
        case SEEN_NOTHING:
            if ((seen == Const.ICONST_1)) {
                state = SEEN_ICONST_1;
            }
            break;

        case SEEN_ICONST_1:
            if (seen == Const.ANEWARRAY && primitiveArray.matcher(getClassConstantOperand()).matches()) {
                // System.out.println("Allocation of array of type " +
                // getClassConstantOperand());
                primitiveArraySig = getClassConstantOperand();
                state = SEEN_ANEWARRAY;
            } else {
                state = SEEN_NOTHING;
            }
            break;

        case SEEN_ANEWARRAY:
            if (seen == Const.DUP) {
                state = SEEN_DUP;
            } else {
                state = SEEN_NOTHING;
            }
            break;
        case SEEN_DUP:
            if (seen == Const.ICONST_0) {
                state = SEEN_ICONST_0;
            } else {
                state = SEEN_NOTHING;
            }
            break;
        case SEEN_ICONST_0:
            if (((seen >= Const.ALOAD_0) && (seen < Const.ALOAD_3)) || (seen == Const.ALOAD)) {
                state = SEEN_ALOAD;
            } else {
                state = SEEN_NOTHING;
            }
            break;

        case SEEN_ALOAD:
            if (seen == Const.AASTORE) {
                state = SEEN_AASTORE;
            } else {
                state = SEEN_NOTHING;
            }
            break;

        case SEEN_AASTORE:
            if (seen == Const.INVOKESTATIC || seen == Const.INVOKEINTERFACE || seen == Const.INVOKESPECIAL || seen == Const.INVOKEVIRTUAL) {
                // System.out.println(getClassConstantOperand());
                // System.out.println(getNameConstantOperand());
                // System.out.println(getSigConstantOperand());
                if (getSigConstantOperand().indexOf("Ljava/lang/Object;)") == -1) {
                    break;
                }
                int priority = NORMAL_PRIORITY;
                if ("asList".equals(getNameConstantOperand()) && "java/util/Arrays".equals(getClassConstantOperand())) {
                    priority = HIGH_PRIORITY;
                }
                bugReporter.reportBug(new BugInstance(this, "VA_PRIMITIVE_ARRAY_PASSED_TO_OBJECT_VARARG", priority)
                        .addClassAndMethod(this).addType(primitiveArraySig).describe(TypeAnnotation.FOUND_ROLE)
                        .addCalledMethod(this).addSourceLine(this));
            }
            state = SEEN_NOTHING;
            break;

        case SEEN_GOTO:
            state = SEEN_NOTHING;
            break;
        default:
            throw new IllegalStateException("State " + state + " not expected");

        }
    }
}
 

@Override
public void sawOpcode(int seen) {
    if (reportedForThisClass) {
        return;
    }

    switch (seen) {
    case Const.LDC:
        Constant constantValue = getConstantRefOperand();
        if (constantValue instanceof ConstantClass) {
            sawGetClass = -100;
        } else if (constantValue instanceof ConstantString) {
            stringConstant = ((ConstantString) constantValue).getBytes(getConstantPool());
        }
        break;

    case Const.ALOAD_0:
        state = 1;
        break;
    case Const.INVOKEVIRTUAL:
        if ("java/lang/Class".equals(getClassConstantOperand())
                && ("getResource".equals(getNameConstantOperand()) || "getResourceAsStream".equals(getNameConstantOperand()))
                && sawGetClass + 10 >= getPC()) {
            int priority = NORMAL_PRIORITY;
            if (prevOpcode == Const.LDC && stringConstant != null && stringConstant.length() > 0 && stringConstant.charAt(0) == '/') {
                priority = LOW_PRIORITY;
            } else {
                priority = adjustPriority(priority);
            }
            bugReporter.reportBug(new BugInstance(this, "UI_INHERITANCE_UNSAFE_GETRESOURCE", priority)
                    .addClassAndMethod(this).addSourceLine(this));
            reportedForThisClass = true;

        } else if (state == 1 && !methodIsStatic && !classIsFinal && classIsVisibleToOtherPackages
                && "getClass".equals(getNameConstantOperand()) && "()Ljava/lang/Class;".equals(getSigConstantOperand())) {
            sawGetClass = getPC();
        }
        state = 0;
        break;
    default:
        state = 0;
        break;
    }
    if (seen != Const.LDC) {
        stringConstant = null;
    }
    prevOpcode = seen;

}