package edu.umd.cs.findbugs.detect;
import java.util.BitSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.annotation.CheckForNull;
import org.apache.bcel.Constants;
import org.apache.bcel.Repository;
import org.apache.bcel.classfile.ConstantClass;
import org.apache.bcel.classfile.JavaClass;
import org.apache.bcel.classfile.LineNumberTable;
import org.apache.bcel.classfile.Method;
import org.apache.bcel.generic.CHECKCAST;
import org.apache.bcel.generic.ConstantPoolGen;
import org.apache.bcel.generic.INSTANCEOF;
import org.apache.bcel.generic.Instruction;
import org.apache.bcel.generic.InstructionHandle;
import org.apache.bcel.generic.InvokeInstruction;
import org.apache.bcel.generic.LDC;
import org.apache.bcel.generic.MethodGen;
import org.apache.bcel.generic.ReferenceType;
import org.apache.bcel.generic.Type;
import org.apache.bcel.generic.TypedInstruction;
import edu.umd.cs.findbugs.Analyze;
import edu.umd.cs.findbugs.BugAccumulator;
import edu.umd.cs.findbugs.BugAnnotation;
import edu.umd.cs.findbugs.BugInstance;
import edu.umd.cs.findbugs.BugReporter;
import edu.umd.cs.findbugs.Detector;
import edu.umd.cs.findbugs.LocalVariableAnnotation;
import edu.umd.cs.findbugs.MethodAnnotation;
import edu.umd.cs.findbugs.Priorities;
import edu.umd.cs.findbugs.SourceLineAnnotation;
import edu.umd.cs.findbugs.SystemProperties;
import edu.umd.cs.findbugs.ba.CFG;
import edu.umd.cs.findbugs.ba.CFGBuilderException;
import edu.umd.cs.findbugs.ba.ClassContext;
import edu.umd.cs.findbugs.ba.DataflowAnalysisException;
import edu.umd.cs.findbugs.ba.Location;
import edu.umd.cs.findbugs.ba.MethodUnprofitableException;
import edu.umd.cs.findbugs.ba.XFactory;
import edu.umd.cs.findbugs.ba.XMethod;
import edu.umd.cs.findbugs.ba.npe.IsNullValue;
import edu.umd.cs.findbugs.ba.npe.IsNullValueDataflow;
import edu.umd.cs.findbugs.ba.npe.IsNullValueFrame;
import edu.umd.cs.findbugs.ba.type.NullType;
import edu.umd.cs.findbugs.ba.type.TopType;
import edu.umd.cs.findbugs.ba.type.TypeDataflow;
import edu.umd.cs.findbugs.ba.type.TypeFrame;
import edu.umd.cs.findbugs.ba.vna.ValueNumber;
import edu.umd.cs.findbugs.ba.vna.ValueNumberDataflow;
import edu.umd.cs.findbugs.ba.vna.ValueNumberFrame;
import edu.umd.cs.findbugs.ba.vna.ValueNumberSourceInfo;
import edu.umd.cs.findbugs.bcel.BCELUtil;
import edu.umd.cs.findbugs.util.ClassName;
import edu.umd.cs.findbugs.visitclass.Util;
public class FindBadCast2 implements Detector {
private final BugReporter bugReporter;
private final Set<String> concreteCollectionClasses = new HashSet<String>();
private final Set<String> abstractCollectionClasses = new HashSet<String>();
private final Set<String> veryAbstractCollectionClasses = new HashSet<String>();
private static final boolean DEBUG = SystemProperties.getBoolean("bc.debug");
public FindBadCast2(BugReporter bugReporter) {
this.bugReporter = bugReporter;
veryAbstractCollectionClasses.add("java.util.Collection");
veryAbstractCollectionClasses.add("java.util.Iterable");
abstractCollectionClasses.add("java.util.Collection");
abstractCollectionClasses.add("java.util.List");
abstractCollectionClasses.add("java.util.Set");
abstractCollectionClasses.add("java.util.SortedSet");
abstractCollectionClasses.add("java.util.SortedMap");
abstractCollectionClasses.add("java.util.Map");
concreteCollectionClasses.add("java.util.LinkedHashMap");
concreteCollectionClasses.add("java.util.LinkedHashSet");
concreteCollectionClasses.add("java.util.HashMap");
concreteCollectionClasses.add("java.util.HashSet");
concreteCollectionClasses.add("java.util.TreeMap");
concreteCollectionClasses.add("java.util.TreeSet");
concreteCollectionClasses.add("java.util.ArrayList");
concreteCollectionClasses.add("java.util.LinkedList");
concreteCollectionClasses.add("java.util.Hashtable");
concreteCollectionClasses.add("java.util.Vector");
}
@Override
public void visitClassContext(ClassContext classContext) {
JavaClass javaClass = classContext.getJavaClass();
Method[] methodList = javaClass.getMethods();
for (Method method : methodList) {
if (method.getCode() == null) {
continue;
}
try {
analyzeMethod(classContext, method);
} catch (MethodUnprofitableException e) {
assert true; // move along; nothing to see
} catch (CFGBuilderException e) {
String msg = "Detector " + this.getClass().getName() + " caught exception while analyzing "
+ javaClass.getClassName() + "." + method.getName() + " : " + method.getSignature();
bugReporter.logError(msg, e);
} catch (DataflowAnalysisException e) {
String msg = "Detector " + this.getClass().getName() + " caught exception while analyzing "
+ javaClass.getClassName() + "." + method.getName() + " : " + method.getSignature();
bugReporter.logError(msg, e);
}
}
}
public boolean prescreen(ClassContext classContext, Method method) {
BitSet bytecodeSet = classContext.getBytecodeSet(method);
return bytecodeSet != null && (bytecodeSet.get(Constants.CHECKCAST) || bytecodeSet.get(Constants.INSTANCEOF));
}
private Set<ValueNumber> getParameterValueNumbers(ClassContext classContext, Method method, CFG cfg)
throws DataflowAnalysisException, CFGBuilderException {
ValueNumberDataflow vnaDataflow = classContext.getValueNumberDataflow(method);
ValueNumberFrame vnaFrameAtEntry = vnaDataflow.getStartFact(cfg.getEntry());
Set<ValueNumber> paramValueNumberSet = new HashSet<ValueNumber>();
int firstParam = method.isStatic() ? 0 : 1;
for (int i = firstParam; i < vnaFrameAtEntry.getNumLocals(); ++i) {
paramValueNumberSet.add(vnaFrameAtEntry.getValue(i));
}
return paramValueNumberSet;
}
private void analyzeMethod(ClassContext classContext, Method method) throws CFGBuilderException, DataflowAnalysisException {
if (BCELUtil.isSynthetic(method) || !prescreen(classContext, method)) {
return;
}
BugAccumulator accumulator = new BugAccumulator(bugReporter);
CFG cfg = classContext.getCFG(method);
TypeDataflow typeDataflow = classContext.getTypeDataflow(method);
IsNullValueDataflow isNullDataflow = classContext.getIsNullValueDataflow(method);
Set<ValueNumber> paramValueNumberSet = null;
ValueNumberDataflow vnaDataflow = null;
ConstantPoolGen cpg = classContext.getConstantPoolGen();
MethodGen methodGen = classContext.getMethodGen(method);
if (methodGen == null) {
return;
}
String methodName = methodGen.getClassName() + "." + methodGen.getName();
String sourceFile = classContext.getJavaClass().getSourceFileName();
if (DEBUG) {
System.out.println("Checking " + methodName);
}
Set<SourceLineAnnotation> haveInstanceOf = new HashSet<SourceLineAnnotation>();
Set<SourceLineAnnotation> haveCast = new HashSet<SourceLineAnnotation>();
Set<SourceLineAnnotation> haveMultipleInstanceOf = new HashSet<SourceLineAnnotation>();
Set<SourceLineAnnotation> haveMultipleCast = new HashSet<SourceLineAnnotation>();
for (Iterator<Location> i = cfg.locationIterator(); i.hasNext();) {
Location location = i.next();
InstructionHandle handle = location.getHandle();
Instruction ins = handle.getInstruction();
if (!(ins instanceof CHECKCAST) && !(ins instanceof INSTANCEOF)) {
continue;
}
SourceLineAnnotation sourceLineAnnotation = SourceLineAnnotation.fromVisitedInstruction(classContext, methodGen,
sourceFile, handle);
if (ins instanceof CHECKCAST) {
if (!haveCast.add(sourceLineAnnotation)) {
haveMultipleCast.add(sourceLineAnnotation);
if (DEBUG) {
System.out.println("Have multiple casts for " + sourceLineAnnotation);
}
}
} else {
if (!haveInstanceOf.add(sourceLineAnnotation)) {
haveMultipleInstanceOf.add(sourceLineAnnotation);
if (DEBUG) {
System.out.println("Have multiple instanceof for " + sourceLineAnnotation);
}
}
}
}
BitSet linesMentionedMultipleTimes = classContext.linesMentionedMultipleTimes(method);
LineNumberTable lineNumberTable = methodGen.getLineNumberTable(methodGen.getConstantPool());
Map<BugAnnotation, String> instanceOfChecks = new HashMap<BugAnnotation, String>();
String constantClass = null;
boolean methodInvocationWasGeneric = false;
int pcForConstantClass = -1;
for (Iterator<Location> i = cfg.locationIterator(); i.hasNext();) {
Location location = i.next();
InstructionHandle handle = location.getHandle();
int pc = handle.getPosition();
Instruction ins = handle.getInstruction();
boolean wasMethodInvocationWasGeneric = methodInvocationWasGeneric;
methodInvocationWasGeneric = false;
if (ins instanceof InvokeInstruction) {
InvokeInstruction iinv = (InvokeInstruction) ins;
XMethod m = XFactory.createXMethod(iinv, cpg);
if (m != null) {
String sourceSignature = m.getSourceSignature();
methodInvocationWasGeneric = sourceSignature != null
&& (sourceSignature.startsWith("<") || sourceSignature.indexOf("java/lang/Class") >= 0);
if (DEBUG && methodInvocationWasGeneric) {
System.out.println(m + " has source signature " + sourceSignature);
}
}
}
if (ins instanceof LDC) {
LDC ldc = (LDC) ins;
Object value = ldc.getValue(cpg);
if (value instanceof ConstantClass) {
ConstantClass cc = (ConstantClass) value;
constantClass = cc.getBytes(classContext.getJavaClass().getConstantPool());
pcForConstantClass = pc;
}
}
if (!(ins instanceof CHECKCAST) && !(ins instanceof INSTANCEOF)) {
continue;
}
boolean isCast = ins instanceof CHECKCAST;
int occurrences = cfg.getLocationsContainingInstructionWithOffset(pc).size();
boolean split = occurrences > 1;
if (lineNumberTable != null) {
int line = lineNumberTable.getSourceLine(handle.getPosition());
if (line > 0 && linesMentionedMultipleTimes.get(line)) {
split = true;
}
}
IsNullValueFrame nullFrame = isNullDataflow.getFactAtLocation(location);
if (!nullFrame.isValid()) {
continue;
}
IsNullValue operandNullness = nullFrame.getTopValue();
if (DEBUG) {
String kind = isCast ? "checkedCast" : "instanceof";
System.out.println(kind + " at pc: " + pc + " in " + methodName);
System.out.println(" occurrences: " + occurrences);
System.out.println("XXX: " + operandNullness);
}
if (split && !isCast) {
// don't report this case; it might be infeasible due to
// inlining
continue;
}
TypeFrame frame = typeDataflow.getFactAtLocation(location);
if (!frame.isValid()) {
// This basic block is probably dead
continue;
}
Type operandType = frame.getTopValue();
if (operandType.equals(TopType.instance())) {
// unreachable
continue;
}
boolean operandTypeIsExact = frame.isExact(frame.getStackLocation(0));
final Type castType = ((TypedInstruction) ins).getType(cpg);
if (!(castType instanceof ReferenceType)) {
// This shouldn't happen either
continue;
}
String castSig = castType.getSignature();
if (operandType.equals(NullType.instance()) || operandNullness.isDefinitelyNull()) {
SourceLineAnnotation sourceLineAnnotation = SourceLineAnnotation.fromVisitedInstruction(classContext, methodGen,
sourceFile, handle);
assert castSig.length() > 1;
if (!isCast) {
accumulator.accumulateBug(new BugInstance(this, "NP_NULL_INSTANCEOF", split ? LOW_PRIORITY : NORMAL_PRIORITY)
.addClassAndMethod(methodGen, sourceFile).addType(castSig), sourceLineAnnotation);
}
continue;
}
if (!(operandType instanceof ReferenceType)) {
// Shouldn't happen - illegal bytecode
continue;
}
final ReferenceType refType = (ReferenceType) operandType;
boolean impliesByGenerics = typeDataflow.getAnalysis().isImpliedByGenericTypes(refType);
if (impliesByGenerics && !isCast) {
continue;
}
final boolean typesAreEqual = refType.equals(castType);
if (isCast && typesAreEqual) {
// System.out.println("self-cast to " +
// castType.getSignature());
continue;
}
String refSig = refType.getSignature();
String castSig2 = castSig;
String refSig2 = refSig;
while (castSig2.charAt(0) == '[' && refSig2.charAt(0) == '[') {
castSig2 = castSig2.substring(1);
refSig2 = refSig2.substring(1);
}
SourceLineAnnotation sourceLineAnnotation = SourceLineAnnotation.fromVisitedInstruction(classContext, methodGen,
sourceFile, handle);
if (refSig2.charAt(0) != 'L' || castSig2.charAt(0) != 'L') {
if (castSig2.charAt(0) == '['
&& (refSig2.equals("Ljava/io/Serializable;") || refSig2.equals("Ljava/lang/Object;") || refSig2
.equals("Ljava/lang/Cloneable;"))) {
continue;
}
if (refSig2.charAt(0) == '['
&& (castSig2.equals("Ljava/io/Serializable;") || castSig2.equals("Ljava/lang/Object;") || castSig2
.equals("Ljava/lang/Cloneable;"))) {
continue;
}
int priority = HIGH_PRIORITY;
if (split && (castSig2.endsWith("Error;") || castSig2.endsWith("Exception;"))) {
priority = LOW_PRIORITY;
}
// report bug only if types are not equal, see bug 3598482
if(!typesAreEqual){
bugReporter.reportBug(new BugInstance(this, isCast ? "BC_IMPOSSIBLE_CAST" : "BC_IMPOSSIBLE_INSTANCEOF", priority)
.addClassAndMethod(methodGen, sourceFile).addFoundAndExpectedType(refType, castType)
.addSourceLine(sourceLineAnnotation));
}
continue;
}
if (!operandTypeIsExact && refSig2.equals("Ljava/lang/Object;")) {
continue;
}
/*
if (false && isCast && haveMultipleCast.contains(sourceLineAnnotation) || !isCast
&& haveMultipleInstanceOf.contains(sourceLineAnnotation)) {
// skip; might be due to JSR inlining
continue;
}*/
String castName = castSig2.substring(1, castSig2.length() - 1).replace('/', '.');
String refName = refSig2.substring(1, refSig2.length() - 1).replace('/', '.');
if (vnaDataflow == null) {
vnaDataflow = classContext.getValueNumberDataflow(method);
}
ValueNumberFrame vFrame = vnaDataflow.getFactAtLocation(location);
if (paramValueNumberSet == null) {
paramValueNumberSet = getParameterValueNumbers(classContext, method, cfg);
}
ValueNumber valueNumber = vFrame.getTopValue();
BugAnnotation valueSource = ValueNumberSourceInfo.findAnnotationFromValueNumber(method, location, valueNumber, vFrame,
"VALUE_OF");
// XXX call below causes 86% of all OpcodeStackDetector.EarlyExitException (getPC() == targetPC) thrown (13000 on java* JDK7 classes)
BugAnnotation source = BugInstance.getSourceForTopStackValue(classContext, method, location);
boolean isParameter = paramValueNumberSet.contains(valueNumber) && source instanceof LocalVariableAnnotation;
try {
JavaClass castJavaClass = Repository.lookupClass(castName);
JavaClass refJavaClass = Repository.lookupClass(refName);
boolean upcast = Repository.instanceOf(refJavaClass, castJavaClass);
if (upcast || typesAreEqual) {
if (!isCast) {
accumulator.accumulateBug(new BugInstance(this, "BC_VACUOUS_INSTANCEOF", NORMAL_PRIORITY)
.addClassAndMethod(methodGen, sourceFile).addFoundAndExpectedType(refType, castType),
sourceLineAnnotation);
}
} else {
boolean castMayThrow = !Repository.instanceOf(refJavaClass, castJavaClass);
boolean downCast = Repository.instanceOf(castJavaClass, refJavaClass);
if (!operandTypeIsExact && refName.equals("java.lang.Object")) {
continue;
}
double rank = 0.0;
boolean castToConcreteCollection = concreteCollectionClasses.contains(castName)
&& abstractCollectionClasses.contains(refName);
boolean castToAbstractCollection = abstractCollectionClasses.contains(castName)
&& veryAbstractCollectionClasses.contains(refName);
int position = location.getHandle().getPosition();
int catchSize = Util.getSizeOfSurroundingTryBlock(classContext.getJavaClass().getConstantPool(), method.getCode(),
"java/lang/ClassCastException", position);
if (!operandTypeIsExact) {
rank = Analyze.deepInstanceOf(refJavaClass, castJavaClass);
if (castToConcreteCollection && rank > 0.6) {
rank = (rank + 0.6) / 2;
} else if (castToAbstractCollection && rank > 0.3) {
rank = (rank + 0.3) / 2;
}
}
/*
if (false) {
System.out.println("Rank:\t" + rank + "\t" + refName + "\t" + castName);
}
*/
boolean completeInformation = (!castJavaClass.isInterface() && !refJavaClass.isInterface())
|| refJavaClass.isFinal() || castJavaClass.isFinal();
if (DEBUG) {
System.out.println(" In " + classContext.getFullyQualifiedMethodName(method));
System.out.println("At pc: " + handle.getPosition());
System.out.println("cast from " + refName + " to " + castName);
System.out.println(" cast may throw: " + castMayThrow);
System.out.println(" is downcast: " + downCast);
System.out.println(" operand type is exact: " + operandTypeIsExact);
System.out.println(" complete information: " + completeInformation);
System.out.println(" isParameter: " + valueNumber);
System.out.println(" score: " + rank);
System.out.println(" source is: " + valueSource);
if (catchSize < Integer.MAX_VALUE) {
System.out.println(" catch block size is: " + catchSize);
}
if (constantClass != null) {
System.out.println(" constant class " + constantClass + " at " + pcForConstantClass);
}
if (handle.getPrev() == null) {
System.out.println(" prev is null");
} else {
System.out.println(" prev is " + handle.getPrev());
}
}
if (!isCast && castMayThrow && valueSource != null) {
String oldCheck = instanceOfChecks.get(valueSource);
if (oldCheck == null) {
instanceOfChecks.put(valueSource, castName);
} else if (!oldCheck.equals(castName)) {
instanceOfChecks.put(valueSource, "");
}
}
if (!downCast && completeInformation || operandTypeIsExact) {
String bugPattern;
if (isCast) {
if (downCast && operandTypeIsExact) {
if (refSig.equals("[Ljava/lang/Object;") && source instanceof MethodAnnotation
&& ((MethodAnnotation) source).getMethodName().equals("toArray")
&& ((MethodAnnotation) source).getMethodSignature().equals("()[Ljava/lang/Object;")) {
bugPattern = "BC_IMPOSSIBLE_DOWNCAST_OF_TOARRAY";
} else {
bugPattern = "BC_IMPOSSIBLE_DOWNCAST";
}
} else {
bugPattern = "BC_IMPOSSIBLE_CAST";
}
} else {
bugPattern = "BC_IMPOSSIBLE_INSTANCEOF";
}
bugReporter.reportBug(new BugInstance(this, bugPattern, isCast ? HIGH_PRIORITY : NORMAL_PRIORITY)
.addClassAndMethod(methodGen, sourceFile)
.addFoundAndExpectedType(refType, castType).addOptionalUniqueAnnotations(valueSource, source)
.addSourceLine(sourceLineAnnotation));
} else if (isCast && rank < 0.9
&& !valueNumber.hasFlag(ValueNumber.ARRAY_VALUE)) {
int priority = NORMAL_PRIORITY;
@CheckForNull String oldCheck = instanceOfChecks.get(valueSource);
if (DEBUG) {
System.out.println("Old check: " + oldCheck);
}
if (castName.equals(oldCheck)) {
priority += 1;
} else if ("".equals(oldCheck)) {
priority += 1;
if (!(source instanceof LocalVariableAnnotation)) {
continue;
}
}
if (rank > 0.75) {
priority += 2;
} else if (rank > 0.5) {
priority += 1;
} else if (rank > 0.25) {
priority += 0;
} else {
priority--;
}
if (DEBUG) {
System.out.println(" priority a: " + priority);
}
if (methodGen.getClassName().startsWith(refName) || methodGen.getClassName().startsWith(castName)) {
priority += 1;
}
if (DEBUG) {
System.out.println(" priority b: " + priority);
}
if (castJavaClass.isInterface() && !castToAbstractCollection) {
priority++;
}
if (DEBUG) {
System.out.println(" priority c: " + priority);
}
if (castToConcreteCollection && veryAbstractCollectionClasses.contains(refName)) {
priority--;
}
if (DEBUG) {
System.out.println(" priority d: " + priority);
}
if (priority <= LOW_PRIORITY && !castToAbstractCollection && !castToConcreteCollection
&& (refJavaClass.isInterface() || refJavaClass.isAbstract())) {
priority++;
}
if (DEBUG) {
System.out.println(" priority e: " + priority);
}
if (DEBUG) {
System.out.println(" ref name: " + refName);
}
if (methodGen.getName().equals("compareTo")) {
priority++;
} else if (methodGen.isPublic() && isParameter && !castName.equals(oldCheck)) {
priority--;
}
if (wasMethodInvocationWasGeneric && valueNumber.hasFlag(ValueNumber.RETURN_VALUE)) {
continue;
}
if (constantClass != null && pcForConstantClass +20 >= pc && valueNumber.hasFlag(ValueNumber.RETURN_VALUE)
&& ClassName.toDottedClassName(constantClass).equals(castName)) {
priority += 2;
}
if (DEBUG) {
System.out.println(" priority f: " + priority);
}
if (source instanceof MethodAnnotation) {
MethodAnnotation m = (MethodAnnotation) source;
XMethod xm = m.toXMethod();
if (xm != null && (xm.isPrivate() || xm.isStatic()) && priority == Priorities.LOW_PRIORITY) {
continue;
}
}
if (valueNumber.hasFlag(ValueNumber.RETURN_VALUE) && priority < Priorities.LOW_PRIORITY) {
priority = Priorities.LOW_PRIORITY;
}
if (DEBUG) {
System.out.println(" priority g: " + priority);
}
if (DEBUG) {
System.out.println(" priority h: " + priority);
}
if (catchSize < 15) {
return;
}
if (catchSize < 25) {
priority++;
}
if (DEBUG) {
System.out.println(" priority i: " + priority);
}
if (priority < HIGH_PRIORITY) {
priority = HIGH_PRIORITY;
}
if (priority <= LOW_PRIORITY) {
String bug = "BC_UNCONFIRMED_CAST";
if (valueNumber.hasFlag(ValueNumber.RETURN_VALUE) || valueSource instanceof MethodAnnotation) {
bug = "BC_UNCONFIRMED_CAST_OF_RETURN_VALUE";
} else if (castToConcreteCollection) {
bug = "BC_BAD_CAST_TO_CONCRETE_COLLECTION";
} else if (castToAbstractCollection) {
bug = "BC_BAD_CAST_TO_ABSTRACT_COLLECTION";
}
BugInstance bugInstance = new BugInstance(this, bug, priority)
.addClassAndMethod(methodGen, sourceFile).addFoundAndExpectedType(refType, castType)
.addOptionalAnnotation(valueSource);
accumulator.accumulateBug(bugInstance, sourceLineAnnotation);
}
}
}
} catch (ClassNotFoundException e) {
if (DEBUG) {
e.printStackTrace(System.out);
}
if (isCast && refSig.equals("[Ljava/lang/Object;") && source instanceof MethodAnnotation
&& ((MethodAnnotation) source).getMethodName().equals("toArray")
&& ((MethodAnnotation) source).getMethodSignature().equals("()[Ljava/lang/Object;")) {
bugReporter.reportBug(new BugInstance(this, "BC_IMPOSSIBLE_DOWNCAST_OF_TOARRAY", isCast ? HIGH_PRIORITY : NORMAL_PRIORITY)
.addClassAndMethod(methodGen, sourceFile)
.addFoundAndExpectedType(refType, castType).addOptionalUniqueAnnotations(valueSource, source)
.addSourceLine(sourceLineAnnotation));
}
}
}
accumulator.reportAccumulatedBugs();
}
@Override
public void report() {
}
}