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dragonwell8_jdk
提交 56970535 编写于 作者: M mchung
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6895456: Eliminate dependency on java.io.ObjectStreamClass during boot 

Summary: Duplicate ObjectStreamClass.getClassSignature method in ObjectStreamField class
Reviewed-by: alanb
上级 5a304f4e
隐藏空白更改
内联 并排
Showing with 72 addition and 35 deletion
src/share/classes/java/io/ObjectStreamClass.java
浏览文件 @ 56970535
......@@ -99,7 +99,7 @@ public class ObjectStreamClass implements Serializable {
}
/** class associated with this descriptor (if any) */
private Class cl;
private Class<?> cl;
/** name of class represented by this descriptor */
private String name;
/** serialVersionUID of represented class (null if not computed yet) */
......@@ -276,7 +276,7 @@ public class ObjectStreamClass implements Serializable {
* @param all if true, return descriptors for all classes; if false, only
* return descriptors for serializable classes
*/
static ObjectStreamClass lookup(Class cl, boolean all) {
static ObjectStreamClass lookup(Class<?> cl, boolean all) {
if (!(all || Serializable.class.isAssignableFrom(cl))) {
return null;
}
......@@ -414,7 +414,7 @@ public class ObjectStreamClass implements Serializable {
/**
* Creates local class descriptor representing given class.
*/
private ObjectStreamClass(final Class cl) {
private ObjectStreamClass(final Class<?> cl) {
this.cl = cl;
name = cl.getName();
isProxy = Proxy.isProxyClass(cl);
......@@ -422,7 +422,7 @@ public class ObjectStreamClass implements Serializable {
serializable = Serializable.class.isAssignableFrom(cl);
externalizable = Externalizable.class.isAssignableFrom(cl);
Class superCl = cl.getSuperclass();
Class<?> superCl = cl.getSuperclass();
superDesc = (superCl != null) ? lookup(superCl, false) : null;
localDesc = this;
......@@ -453,10 +453,10 @@ public class ObjectStreamClass implements Serializable {
} else {
cons = getSerializableConstructor(cl);
writeObjectMethod = getPrivateMethod(cl, "writeObject",
new Class[] { ObjectOutputStream.class },
new Class<?>[] { ObjectOutputStream.class },
Void.TYPE);
readObjectMethod = getPrivateMethod(cl, "readObject",
new Class[] { ObjectInputStream.class },
new Class<?>[] { ObjectInputStream.class },
Void.TYPE);
readObjectNoDataMethod = getPrivateMethod(
cl, "readObjectNoData", null, Void.TYPE);
......@@ -507,7 +507,7 @@ public class ObjectStreamClass implements Serializable {
/**
* Initializes class descriptor representing a proxy class.
*/
void initProxy(Class cl,
void initProxy(Class<?> cl,
ClassNotFoundException resolveEx,
ObjectStreamClass superDesc)
throws InvalidClassException
......@@ -540,7 +540,7 @@ public class ObjectStreamClass implements Serializable {
* Initializes class descriptor representing a non-proxy class.
*/
void initNonProxy(ObjectStreamClass model,
Class cl,
Class<?> cl,
ClassNotFoundException resolveEx,
ObjectStreamClass superDesc)
throws InvalidClassException
......@@ -1131,7 +1131,7 @@ public class ObjectStreamClass implements Serializable {
throws InvalidClassException
{
ArrayList<ClassDataSlot> slots = new ArrayList<ClassDataSlot>();
Class start = cl, end = cl;
Class<?> start = cl, end = cl;
// locate closest non-serializable superclass
while (end != null && Serializable.class.isAssignableFrom(end)) {
......@@ -1142,8 +1142,8 @@ public class ObjectStreamClass implements Serializable {
// search up inheritance hierarchy for class with matching name
String searchName = (d.cl != null) ? d.cl.getName() : d.name;
Class match = null;
for (Class c = start; c != end; c = c.getSuperclass()) {
Class<?> match = null;
for (Class<?> c = start; c != end; c = c.getSuperclass()) {
if (searchName.equals(c.getName())) {
match = c;
break;
......@@ -1152,7 +1152,7 @@ public class ObjectStreamClass implements Serializable {
// add "no data" slot for each unmatched class below match
if (match != null) {
for (Class c = start; c != match; c = c.getSuperclass()) {
for (Class<?> c = start; c != match; c = c.getSuperclass()) {
slots.add(new ClassDataSlot(
ObjectStreamClass.lookup(c, true), false));
}
......@@ -1164,7 +1164,7 @@ public class ObjectStreamClass implements Serializable {
}
// add "no data" slot for any leftover unmatched classes
for (Class c = start; c != end; c = c.getSuperclass()) {
for (Class<?> c = start; c != end; c = c.getSuperclass()) {
slots.add(new ClassDataSlot(
ObjectStreamClass.lookup(c, true), false));
}
......@@ -1288,7 +1288,7 @@ public class ObjectStreamClass implements Serializable {
* descriptor, returns reference to this class descriptor. Otherwise,
* returns variant of this class descriptor bound to given class.
*/
private ObjectStreamClass getVariantFor(Class cl)
private ObjectStreamClass getVariantFor(Class<?> cl)
throws InvalidClassException
{
if (this.cl == cl) {
......@@ -1355,8 +1355,8 @@ public class ObjectStreamClass implements Serializable {
* method (if any).
*/
private static Method getInheritableMethod(Class<?> cl, String name,
Class[] argTypes,
Class returnType)
Class<?>[] argTypes,
Class<?> returnType)
{
Method meth = null;
Class<?> defCl = cl;
......@@ -1410,7 +1410,7 @@ public class ObjectStreamClass implements Serializable {
* Returns true if classes are defined in the same runtime package, false
* otherwise.
*/
private static boolean packageEquals(Class cl1, Class cl2) {
private static boolean packageEquals(Class<?> cl1, Class<?> cl2) {
return (cl1.getClassLoader() == cl2.getClassLoader() &&
getPackageName(cl1).equals(getPackageName(cl2)));
}
......@@ -1418,7 +1418,7 @@ public class ObjectStreamClass implements Serializable {
/**
* Returns package name of given class.
*/
private static String getPackageName(Class cl) {
private static String getPackageName(Class<?> cl) {
String s = cl.getName();
int i = s.lastIndexOf('[');
if (i >= 0) {
......@@ -1441,7 +1441,7 @@ public class ObjectStreamClass implements Serializable {
/**
* Returns JVM type signature for given class.
*/
static String getClassSignature(Class cl) {
private static String getClassSignature(Class<?> cl) {
StringBuilder sbuf = new StringBuilder();
while (cl.isArray()) {
sbuf.append('[');
......@@ -1478,8 +1478,8 @@ public class ObjectStreamClass implements Serializable {
/**
* Returns JVM type signature for given list of parameters and return type.
*/
private static String getMethodSignature(Class[] paramTypes,
Class retType)
private static String getMethodSignature(Class<?>[] paramTypes,
Class<?> retType)
{
StringBuilder sbuf = new StringBuilder();
sbuf.append('(');
......@@ -1515,7 +1515,7 @@ public class ObjectStreamClass implements Serializable {
* Field objects. Throws InvalidClassException if the (explicitly
* declared) serializable fields are invalid.
*/
private static ObjectStreamField[] getSerialFields(Class cl)
private static ObjectStreamField[] getSerialFields(Class<?> cl)
throws InvalidClassException
{
ObjectStreamField[] fields;
......@@ -1545,7 +1545,7 @@ public class ObjectStreamClass implements Serializable {
* InvalidClassException if the declared serializable fields are
* invalid--e.g., if multiple fields share the same name.
*/
private static ObjectStreamField[] getDeclaredSerialFields(Class cl)
private static ObjectStreamField[] getDeclaredSerialFields(Class<?> cl)
throws InvalidClassException
{
ObjectStreamField[] serialPersistentFields = null;
......@@ -1602,7 +1602,7 @@ public class ObjectStreamClass implements Serializable {
* contains a Field object for the field it represents. If no default
* serializable fields exist, NO_FIELDS is returned.
*/
private static ObjectStreamField[] getDefaultSerialFields(Class cl) {
private static ObjectStreamField[] getDefaultSerialFields(Class<?> cl) {
Field[] clFields = cl.getDeclaredFields();
ArrayList<ObjectStreamField> list = new ArrayList<ObjectStreamField>();
int mask = Modifier.STATIC | Modifier.TRANSIENT;
......@@ -1621,7 +1621,7 @@ public class ObjectStreamClass implements Serializable {
* Returns explicit serial version UID value declared by given class, or
* null if none.
*/
private static Long getDeclaredSUID(Class cl) {
private static Long getDeclaredSUID(Class<?> cl) {
try {
Field f = cl.getDeclaredField("serialVersionUID");
int mask = Modifier.STATIC | Modifier.FINAL;
......@@ -1637,7 +1637,7 @@ public class ObjectStreamClass implements Serializable {
/**
* Computes the default serial version UID value for the given class.
*/
private static long computeDefaultSUID(Class cl) {
private static long computeDefaultSUID(Class<?> cl) {
if (!Serializable.class.isAssignableFrom(cl) || Proxy.isProxyClass(cl))
{
return 0L;
......@@ -1671,7 +1671,7 @@ public class ObjectStreamClass implements Serializable {
* Class.getInterfaces() was modified to return Cloneable and
* Serializable for array classes.
*/
Class[] interfaces = cl.getInterfaces();
Class<?>[] interfaces = cl.getInterfaces();
String[] ifaceNames = new String[interfaces.length];
for (int i = 0; i < interfaces.length; i++) {
ifaceNames[i] = interfaces[i].getName();
......@@ -1784,7 +1784,7 @@ public class ObjectStreamClass implements Serializable {
* Returns true if the given class defines a static initializer method,
* false otherwise.
*/
private native static boolean hasStaticInitializer(Class cl);
private native static boolean hasStaticInitializer(Class<?> cl);
/**
* Class for computing and caching field/constructor/method signatures
......@@ -1837,7 +1837,7 @@ public class ObjectStreamClass implements Serializable {
/** field type codes */
private final char[] typeCodes;
/** field types */
private final Class[] types;
private final Class<?>[] types;
/**
* Constructs FieldReflector capable of setting/getting values from the
......@@ -2071,7 +2071,7 @@ public class ObjectStreamClass implements Serializable {
throws InvalidClassException
{
// class irrelevant if no fields
Class cl = (localDesc != null && fields.length > 0) ?
Class<?> cl = (localDesc != null && fields.length > 0) ?
localDesc.cl : null;
processQueue(Caches.reflectorsQueue, Caches.reflectors);
FieldReflectorKey key = new FieldReflectorKey(cl, fields,
......@@ -2136,7 +2136,7 @@ public class ObjectStreamClass implements Serializable {
private final int hash;
private final boolean nullClass;
FieldReflectorKey(Class cl, ObjectStreamField[] fields,
FieldReflectorKey(Class<?> cl, ObjectStreamField[] fields,
ReferenceQueue<Class<?>> queue)
{
super(cl, queue);
......
src/share/classes/java/io/ObjectStreamField.java
浏览文件 @ 56970535
......@@ -45,7 +45,7 @@ public class ObjectStreamField
/** canonical JVM signature of field type */
private final String signature;
/** field type (Object.class if unknown non-primitive type) */
private final Class type;
private final Class<?> type;
/** whether or not to (de)serialize field values as unshared */
private final boolean unshared;
/** corresponding reflective field object, if any */
......@@ -88,7 +88,7 @@ public class ObjectStreamField
this.name = name;
this.type = type;
this.unshared = unshared;
signature = ObjectStreamClass.getClassSignature(type).intern();
signature = getClassSignature(type).intern();
field = null;
}
......@@ -132,9 +132,9 @@ public class ObjectStreamField
this.field = field;
this.unshared = unshared;
name = field.getName();
Class ftype = field.getType();
Class<?> ftype = field.getType();
type = (showType || ftype.isPrimitive()) ? ftype : Object.class;
signature = ObjectStreamClass.getClassSignature(ftype).intern();
signature = getClassSignature(ftype).intern();
}
/**
......@@ -274,4 +274,41 @@ public class ObjectStreamField
String getSignature() {
return signature;
}
/**
* Returns JVM type signature for given class.
*/
private static String getClassSignature(Class<?> cl) {
StringBuilder sbuf = new StringBuilder();
while (cl.isArray()) {
sbuf.append('[');
cl = cl.getComponentType();
}
if (cl.isPrimitive()) {
if (cl == Integer.TYPE) {
sbuf.append('I');
} else if (cl == Byte.TYPE) {
sbuf.append('B');
} else if (cl == Long.TYPE) {
sbuf.append('J');
} else if (cl == Float.TYPE) {
sbuf.append('F');
} else if (cl == Double.TYPE) {
sbuf.append('D');
} else if (cl == Short.TYPE) {
sbuf.append('S');
} else if (cl == Character.TYPE) {
sbuf.append('C');
} else if (cl == Boolean.TYPE) {
sbuf.append('Z');
} else if (cl == Void.TYPE) {
sbuf.append('V');
} else {
throw new InternalError();
}
} else {
sbuf.append('L' + cl.getName().replace('.', '/') + ';');
}
return sbuf.toString();
}
}
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