/**
* Dumps the contents of the specified class to the specified directory. The file is named
* dump_dir/[class].bcel. It contains a synopsis of the fields and methods followed by the jvm
* code for each method.
*
* @param jc javaclass to dump
* @param dump_dir directory in which to write the file
*/
public static void dump(JavaClass jc, File dump_dir) {
try {
dump_dir.mkdir();
File path = new File(dump_dir, jc.getClassName() + ".bcel");
PrintStream p = new PrintStream(path);
// Print the class, super class and interfaces
p.printf("class %s extends %s\n", jc.getClassName(), jc.getSuperclassName());
String[] inames = jc.getInterfaceNames();
if ((inames != null) && (inames.length > 0)) {
p.printf(" ");
for (String iname : inames) p.printf("implements %s ", iname);
p.printf("\n");
}
// Print each field
p.printf("\nFields\n");
for (Field f : jc.getFields()) p.printf(" %s\n", f);
// Print the signature of each method
p.printf("\nMethods\n");
for (Method m : jc.getMethods()) p.printf(" %s\n", m);
// If this is not an interface, print the code for each method
if (!jc.isInterface()) {
for (Method m : jc.getMethods()) {
p.printf("\nMethod %s\n", m);
Code code = m.getCode();
if (code != null) p.printf(" %s\n", code.toString().replace("\n", "\n "));
}
}
// Print the details of the constant pool.
p.printf("Constant Pool:\n");
ConstantPool cp = jc.getConstantPool();
Constant[] constants = cp.getConstantPool();
for (int ii = 0; ii < constants.length; ii++) {
p.printf(" %d %s\n", ii, constants[ii]);
}
p.close();
} catch (Exception e) {
throw new Error("Unexpected error dumping javaclass", e);
}
}
@Override
public void visit(JavaClass obj) {
String superClassname = obj.getSuperclassName();
// System.out.println("superclass of " + getClassName() + " is " + superClassname);
isEnum = superClassname.equals("java.lang.Enum");
if (isEnum) return;
int flags = obj.getAccessFlags();
isAbstract = (flags & ACC_ABSTRACT) != 0 || (flags & ACC_INTERFACE) != 0;
isAnonymousInnerClass = anonymousInnerClassNamePattern.matcher(getClassName()).matches();
innerClassHasOuterInstance = false;
for (Field f : obj.getFields()) {
if (f.getName().equals("this$0")) {
innerClassHasOuterInstance = true;
break;
}
}
sawSerialVersionUID = false;
isSerializable = implementsSerializableDirectly = false;
isExternalizable = false;
directlyImplementsExternalizable = false;
isGUIClass = false;
isEjbImplClass = false;
seenTransientField = false;
// boolean isEnum = obj.getSuperclassName().equals("java.lang.Enum");
fieldsThatMightBeAProblem.clear();
transientFieldsUpdates.clear();
transientFieldsSetInConstructor.clear();
transientFieldsSetToDefaultValueInConstructor.clear();
// isRemote = false;
// Does this class directly implement Serializable?
String[] interface_names = obj.getInterfaceNames();
for (String interface_name : interface_names) {
if (interface_name.equals("java.io.Externalizable")) {
directlyImplementsExternalizable = true;
isExternalizable = true;
if (DEBUG) {
System.out.println("Directly implements Externalizable: " + getClassName());
}
} else if (interface_name.equals("java.io.Serializable")) {
implementsSerializableDirectly = true;
isSerializable = true;
if (DEBUG) {
System.out.println("Directly implements Serializable: " + getClassName());
}
break;
}
}
// Does this class indirectly implement Serializable?
if (!isSerializable) {
if (Subtypes2.instanceOf(obj, "java.io.Externalizable")) {
isExternalizable = true;
if (DEBUG) {
System.out.println("Indirectly implements Externalizable: " + getClassName());
}
}
if (Subtypes2.instanceOf(obj, "java.io.Serializable")) {
isSerializable = true;
if (DEBUG) {
System.out.println("Indirectly implements Serializable: " + getClassName());
}
}
}
hasPublicVoidConstructor = false;
superClassHasVoidConstructor = true;
superClassHasReadObject = false;
superClassImplementsSerializable = isSerializable && !implementsSerializableDirectly;
ClassDescriptor superclassDescriptor = getXClass().getSuperclassDescriptor();
if (superclassDescriptor != null)
try {
XClass superXClass =
Global.getAnalysisCache().getClassAnalysis(XClass.class, superclassDescriptor);
if (superXClass != null) {
superClassImplementsSerializable =
AnalysisContext.currentAnalysisContext()
.getSubtypes2()
.isSubtype(
superXClass.getClassDescriptor(),
DescriptorFactory.createClassDescriptor(java.io.Serializable.class));
superClassHasVoidConstructor = false;
for (XMethod m : superXClass.getXMethods()) {
if (m.getName().equals("<init>") && m.getSignature().equals("()V") && !m.isPrivate()) {
superClassHasVoidConstructor = true;
}
if (m.getName().equals("readObject")
&& m.getSignature().equals("(Ljava/io/ObjectInputStream;)V")
&& m.isPrivate()) superClassHasReadObject = true;
}
}
} catch (ClassNotFoundException e) {
bugReporter.reportMissingClass(e);
} catch (CheckedAnalysisException e) {
bugReporter.logError("huh", e);
}
// Is this a GUI or other class that is rarely serialized?
isGUIClass = false;
isEjbImplClass = false;
if (true || !directlyImplementsExternalizable && !implementsSerializableDirectly) {
isEjbImplClass = Subtypes2.instanceOf(obj, "javax.ejb.SessionBean");
isGUIClass =
(Subtypes2.instanceOf(obj, "java.lang.Throwable")
|| Subtypes2.instanceOf(obj, "java.awt.Component")
|| Subtypes2.instanceOf(obj, "java.awt.Component$AccessibleAWTComponent")
|| Subtypes2.instanceOf(obj, "java.awt.event.ActionListener")
|| Subtypes2.instanceOf(obj, "java.util.EventListener"));
if (!isGUIClass) {
JavaClass o = obj;
while (o != null) {
if (o.getClassName().startsWith("java.awt")
|| o.getClassName().startsWith("javax.swing")) {
isGUIClass = true;
break;
}
try {
o = o.getSuperClass();
} catch (ClassNotFoundException e) {
break;
}
}
}
}
foundSynthetic = false;
foundSynchronizedMethods = false;
writeObjectIsSynchronized = false;
sawReadExternal = sawWriteExternal = sawReadObject = sawReadResolve = sawWriteObject = false;
if (isSerializable) {
for (Method m : obj.getMethods()) {
if (m.getName().equals("readObject")
&& m.getSignature().equals("(Ljava/io/ObjectInputStream;)V")) sawReadObject = true;
else if (m.getName().equals("readResolve") && m.getSignature().startsWith("()"))
sawReadResolve = true;
else if (m.getName().equals("readObjectNoData") && m.getSignature().equals("()V"))
sawReadObject = true;
else if (m.getName().equals("writeObject")
&& m.getSignature().equals("(Ljava/io/ObjectOutputStream;)V")) sawWriteObject = true;
}
for (Field f : obj.getFields()) {
if (f.isTransient()) seenTransientField = true;
}
}
}