@Override
public void visitField(Field obj) {
if (!isInnerClass && obj.isPrivate() && !obj.isSynthetic()) {
String sig = obj.getSignature();
if (sig.startsWith(Values.SIG_QUALIFIED_CLASS_PREFIX)) {
String type = SignatureUtils.stripSignature(sig);
if (doesObjectNeedToBeWatched(type)) {
fieldSpecialObjects.put(obj.getName(), obj.getSignature());
}
}
}
}
@Override
public void visit(Field obj) {
int flags = obj.getAccessFlags();
if (isEjbImplClass) {
ClassDescriptor fieldType =
DescriptorFactory.createClassDescriptorFromFieldSignature(obj.getSignature());
if (fieldType != null) {
if (Subtypes2.instanceOf(fieldType, "javax.ejb.SessionContext")
|| Subtypes2.instanceOf(fieldType, "javax.transaction.UserTransaction")
|| Subtypes2.instanceOf(fieldType, "javax.ejb.EJBHome")
|| Subtypes2.instanceOf(fieldType, "javax.ejb.EJBObject")
|| Subtypes2.instanceOf(fieldType, "javax.naming.Context")) {
if (obj.isTransient())
bugReporter.reportBug(
new BugInstance(this, "UNKNOWN", NORMAL_PRIORITY)
.addClass(this)
.addVisitedField(this));
return;
}
}
}
if (obj.isTransient()) {
if (isSerializable && !isExternalizable) {
seenTransientField = true;
transientFieldsUpdates.put(getXField(), 0);
} else if (reportTransientFieldOfNonSerializableClass) {
bugReporter.reportBug(
new BugInstance(this, "SE_TRANSIENT_FIELD_OF_NONSERIALIZABLE_CLASS", NORMAL_PRIORITY)
.addClass(this)
.addVisitedField(this));
}
} else if (getClassName().indexOf("ObjectStreamClass") == -1
&& isSerializable
&& !isExternalizable
&& getFieldSig().indexOf("L") >= 0
&& !obj.isTransient()
&& !obj.isStatic()) {
if (DEBUG) {
System.out.println(
"Examining non-transient field with name: "
+ getFieldName()
+ ", sig: "
+ getFieldSig());
}
try {
double isSerializable = DeepSubtypeAnalysis.isDeepSerializable(getFieldSig());
if (DEBUG) {
System.out.println(" isSerializable: " + isSerializable);
}
if (isSerializable < 1.0)
fieldsThatMightBeAProblem.put(obj.getName(), XFactory.createXField(this));
if (isSerializable < 0.9) {
// Priority is LOW for GUI classes (unless explicitly marked Serializable),
// HIGH if the class directly implements Serializable,
// NORMAL otherwise.
int priority = computePriority(isSerializable, 0);
if (!strongEvidenceForIntendedSerialization()) {
if (obj.getName().startsWith("this$")) priority = Math.max(priority, NORMAL_PRIORITY);
else if (innerClassHasOuterInstance) {
if (isAnonymousInnerClass) priority += 2;
else priority += 1;
}
if (isGUIClass || isEjbImplClass) priority++;
} else if (isGUIClass || isEjbImplClass) priority = Math.max(priority, NORMAL_PRIORITY);
if (DEBUG)
System.out.println(
"SE_BAD_FIELD: "
+ getThisClass().getClassName()
+ " "
+ obj.getName()
+ " "
+ isSerializable
+ " "
+ implementsSerializableDirectly
+ " "
+ sawSerialVersionUID
+ " "
+ isGUIClass
+ " "
+ isEjbImplClass);
// Report is queued until after the entire class has been seen.
if (obj.getName().equals("this$0"))
fieldWarningList.add(
new BugInstance(this, "SE_BAD_FIELD_INNER_CLASS", priority)
.addClass(getThisClass().getClassName()));
else if (isSerializable < 0.9)
fieldWarningList.add(
new BugInstance(this, "SE_BAD_FIELD", priority)
.addClass(getThisClass().getClassName())
.addField(getDottedClassName(), obj.getName(), getFieldSig(), false));
} else if (!isGUIClass && !isEjbImplClass && obj.getName().equals("this$0"))
fieldWarningList.add(
new BugInstance(
this,
"SE_INNER_CLASS",
implementsSerializableDirectly ? NORMAL_PRIORITY : LOW_PRIORITY)
.addClass(getThisClass().getClassName()));
} catch (ClassNotFoundException e) {
if (DEBUG) {
System.out.println("Caught ClassNotFoundException");
}
bugReporter.reportMissingClass(e);
}
}
if (!getFieldName().startsWith("this") && isSynthetic(obj)) foundSynthetic = true;
if (!getFieldName().equals("serialVersionUID")) return;
int mask = ACC_STATIC | ACC_FINAL;
if (!getFieldSig().equals("I") && !getFieldSig().equals("J")) return;
if ((flags & mask) == mask && getFieldSig().equals("I")) {
bugReporter.reportBug(
new BugInstance(this, "SE_NONLONG_SERIALVERSIONID", LOW_PRIORITY)
.addClass(this)
.addVisitedField(this));
sawSerialVersionUID = true;
return;
} else if ((flags & ACC_STATIC) == 0) {
bugReporter.reportBug(
new BugInstance(this, "SE_NONSTATIC_SERIALVERSIONID", NORMAL_PRIORITY)
.addClass(this)
.addVisitedField(this));
return;
} else if ((flags & ACC_FINAL) == 0) {
bugReporter.reportBug(
new BugInstance(this, "SE_NONFINAL_SERIALVERSIONID", NORMAL_PRIORITY)
.addClass(this)
.addVisitedField(this));
return;
}
sawSerialVersionUID = true;
}
/**
* overrides the visitor to report on classes without toStrings that have fields
*
* @param classContext the context object of the currently parsed class
*/
@Override
public void visitClassContext(ClassContext classContext) {
JavaClass cls = classContext.getJavaClass();
if (cls.getPackageName().isEmpty()) {
bugReporter.reportBug(
new BugInstance(this, BugType.IMC_IMMATURE_CLASS_NO_PACKAGE.name(), LOW_PRIORITY)
.addClass(cls));
}
if ((!cls.isAbstract())
&& (!cls.isEnum())
&& !cls.getClassName().contains("$")
&& !isTestClass(cls)) {
try {
boolean clsHasRuntimeAnnotation = classHasRuntimeVisibleAnnotation(cls);
HEStatus heStatus = HEStatus.UNKNOWN;
checkIDEGeneratedParmNames(cls);
for (Field f : cls.getFields()) {
if (!f.isStatic() && !f.isSynthetic()) {
boolean fieldHasRuntimeAnnotation = fieldHasRuntimeVisibleAnnotation(f);
if (!fieldHasRuntimeAnnotation) {
/* only report one of these, so as not to flood the report */
if (!hasMethodInHierarchy(cls, "toString", "()Ljava/lang/String;")) {
bugReporter.reportBug(
new BugInstance(
this, BugType.IMC_IMMATURE_CLASS_NO_TOSTRING.name(), LOW_PRIORITY)
.addClass(cls));
return;
}
if (heStatus != HEStatus.NOT_NEEDED) {
String fieldSig = f.getSignature();
if (fieldSig.startsWith("L")) {
if (!fieldSig.startsWith("Ljava")) {
JavaClass fieldClass =
Repository.lookupClass(fieldSig.substring(1, fieldSig.length() - 1));
if (!hasMethodInHierarchy(fieldClass, "equals", "(Ljava/lang/Object)Z")) {
heStatus = HEStatus.NOT_NEEDED;
}
} else if (!fieldSig.startsWith("Ljava/lang/")
&& !fieldSig.startsWith("Ljava/util/")) {
heStatus = HEStatus.NOT_NEEDED;
}
} else if (!fieldSig.startsWith("[")) {
heStatus = HEStatus.NEEDED;
}
}
} else {
heStatus = HEStatus.NOT_NEEDED;
}
}
}
if (!clsHasRuntimeAnnotation && (heStatus == HEStatus.NEEDED)) {
if (!hasMethodInHierarchy(cls, "equals", "(Ljava/lang/Object;)Z")) {
bugReporter.reportBug(
new BugInstance(this, BugType.IMC_IMMATURE_CLASS_NO_EQUALS.name(), LOW_PRIORITY)
.addClass(cls));
} else if (!hasMethodInHierarchy(cls, "hashCode", "()I")) {
bugReporter.reportBug(
new BugInstance(this, BugType.IMC_IMMATURE_CLASS_NO_HASHCODE.name(), LOW_PRIORITY)
.addClass(cls));
}
}
} catch (ClassNotFoundException cnfe) {
bugReporter.reportMissingClass(cnfe);
}
}
}
