/**
* Returns the default value for the annotation member represented by this {@code Method}
* instance. If the member is of a primitive type, an instance of the corresponding wrapper type
* is returned. Returns null if no default is associated with the member, or if the method
* instance does not represent a declared member of an annotation type.
*
* @return the default value for the annotation member represented by this {@code Method}
* instance.
* @throws TypeNotPresentException if the annotation is of type {@link Class} and no definition
* can be found for the default class value.
* @since 1.5
*/
public Object getDefaultValue() {
if (annotationDefault == null) return null;
Class<?> memberType = AnnotationType.invocationHandlerReturnType(getReturnType());
Object result =
AnnotationParser.parseMemberValue(
memberType,
ByteBuffer.wrap(annotationDefault),
sun.misc.SharedSecrets.getJavaLangAccess().getConstantPool(getDeclaringClass()),
getDeclaringClass());
if (result instanceof sun.reflect.annotation.ExceptionProxy)
throw new AnnotationFormatError("Invalid default: " + this);
return result;
}
/**
* Read the method table
*
* @param data
* @param rejectNatives
* @param cls
* @param cp
* @param statics
* @param cl
*/
private static void readMethods(
ByteBuffer data,
boolean rejectNatives,
VmType cls,
VmCP cp,
VmStatics statics,
VmClassLoader cl) {
final int mcount = data.getChar();
if (mcount > 0) {
final VmMethod[] mtable = new VmMethod[mcount];
for (int i = 0; i < mcount; i++) {
final int modifiers = data.getChar();
final String name = cp.getUTF8(data.getChar());
final String signature = cp.getUTF8(data.getChar());
final boolean isStatic = ((modifiers & Modifier.ACC_STATIC) != 0);
final VmMethod mts;
final boolean isSpecial = name.equals("<init>");
// final int staticsIdx = statics.allocMethod();
if (isStatic || isSpecial) {
if (isSpecial) {
mts = new VmSpecialMethod(name, signature, modifiers, cls);
} else {
mts = new VmStaticMethod(name, signature, modifiers, cls);
}
} else {
mts = new VmInstanceMethod(name, signature, modifiers, cls);
}
// statics.setMethod(staticsIdx, mts);
mtable[i] = mts;
// Read methods attributes
final int acount = data.getChar();
VmAnnotation[] rVisAnn = null;
VmAnnotation[] rInvisAnn = null;
for (int a = 0; a < acount; a++) {
String attrName = cp.getUTF8(data.getChar());
int length = data.getInt();
if (VmArray.equals(CodeAttrName, attrName)) {
mts.setBytecode(readCode(data, cls, cp, mts));
} else if (VmArray.equals(ExceptionsAttrName, attrName)) {
mts.setExceptions(readExceptions(data, cls, cp));
} else if (VmArray.equals(RuntimeVisibleAnnotationsAttrName, attrName)) {
byte[] buf = new byte[length];
data.slice().get(buf);
mts.setRawAnnotations(buf);
// todo will get obsolate with openjdk based annotation support
// rVisAnn = readRuntimeAnnotations(data, cp, true, cl);
rVisAnn = readRuntimeAnnotations2(data, cp, true, cl, cls);
} else if (VmArray.equals(RuntimeInvisibleAnnotationsAttrName, attrName)) {
rInvisAnn = readRuntimeAnnotations(data, cp, false, cl);
} else if (VmArray.equals(RuntimeVisibleParameterAnnotationsAttrName, attrName)) {
byte[] buf = new byte[length];
data.slice().get(buf);
mts.setRawParameterAnnotations(buf);
// todo will get obsolate with openjdk based annotation support
readRuntimeParameterAnnotations(data, cp, true, cl);
} else if (VmArray.equals(RuntimeInvisibleParameterAnnotationsAttrName, attrName)) {
readRuntimeParameterAnnotations(data, cp, false, cl);
} else if (VmArray.equals(AnnotationDefaultAttrName, attrName)) {
// todo will get obsolate with openjdk based annotation support
byte[] buf = new byte[length];
data.slice().get(buf);
mts.setRawAnnotationDefault(buf);
Class r_class;
VmType vtm = mts.getReturnType();
if (vtm.isPrimitive()) {
r_class = getClassForJvmType(vtm.getJvmType());
} else {
try {
r_class = Class.forName(vtm.getName(), false, vtm.getLoader().asClassLoader());
} catch (ClassNotFoundException cnf) {
throw new RuntimeException(cnf);
}
}
Object defo =
AnnotationParser.parseMemberValue(
r_class,
data,
new VmConstantPool(cls),
VmUtils.isRunningVm() ? cls.asClass() : cls.asClassDuringBootstrap());
mts.setAnnotationDefault(defo);
} else {
skip(data, length);
}
}
mts.setRuntimeAnnotations(rVisAnn);
if (rVisAnn != null) {
mts.addPragmaFlags(getMethodPragmaFlags(rVisAnn, cls.getName()));
}
if (rInvisAnn != null) {
mts.addPragmaFlags(getMethodPragmaFlags(rInvisAnn, cls.getName()));
}
if ((modifiers & Modifier.ACC_NATIVE) != 0) {
final VmByteCode bc = getNativeCodeReplacement(mts, cl, rejectNatives);
if (bc != null) {
mts.setModifier(false, Modifier.ACC_NATIVE);
mts.setBytecode(bc);
} else {
if (rejectNatives) {
throw new ClassFormatError("Native method " + mts);
}
}
}
}
cls.setMethodTable(mtable);
}
}
/**
* Read a single annotation structure.
*
* @param data
* @param cp
*/
private static VmAnnotation readAnnotation2(
ByteBuffer data, VmCP cp, boolean visible, VmClassLoader loader, VmType vmType) {
final String typeDescr = cp.getUTF8(data.getChar());
final int numElemValuePairs = data.getChar();
final VmAnnotation.ElementValue[] values;
if (numElemValuePairs == 0) {
values = VmAnnotation.ElementValue.EMPTY_ARR;
} else if (visible) {
values = new VmAnnotation.ElementValue[numElemValuePairs];
for (int i = 0; i < numElemValuePairs; i++) {
final String elemName = cp.getUTF8(data.getChar());
Object defo = null; // readElementValue(data, cp);
try {
VmType annType = new Signature(typeDescr, loader).getType();
VmMethod mts = null;
int dmc = annType.getNoDeclaredMethods();
for (int v = 0; v < dmc; v++) {
VmMethod m = annType.getDeclaredMethod(v);
if (elemName.equals(m.getName())) {
mts = m;
break;
}
}
Class r_class;
VmType vtm = mts.getReturnType();
if (vtm.isPrimitive()) {
r_class = getClassForJvmType(vtm.getJvmType());
} else {
try {
r_class = vtm.getLoader().asClassLoader().loadClass(vtm.getName());
} catch (ClassNotFoundException cnf) {
throw new RuntimeException(cnf);
}
}
Class container;
try {
container = annType.getLoader().asClassLoader().loadClass(annType.getName());
} catch (ClassNotFoundException cnf) {
throw new RuntimeException(cnf);
}
defo =
AnnotationParser.parseMemberValue(
r_class, data, new VmConstantPool(vmType), container);
if (defo instanceof ExceptionProxy)
throw new RuntimeException(
"Error parsing annotation parameter value (annotation= "
+ annType.getName()
+ ", parameter="
+ mts.getName()
+ ')');
} catch (Exception e) {
throw new RuntimeException(e);
}
final Object value = defo; // readElementValue(data, cp);
values[i] = new VmAnnotation.ElementValue(elemName, value);
}
} else {
values = VmAnnotation.ElementValue.EMPTY_ARR;
for (int i = 0; i < numElemValuePairs; i++) {
data.getChar(); // Skip name ref
skipElementValue(data, cp);
}
}
return new VmAnnotation(typeDescr, values);
}
