JDK 11 java.base.jmod - Base Module
JDK 11 java.base.jmod is the JMOD file for JDK 11 Base module.
JDK 11 Base module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.base.jmod.
JDK 11 Base module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.
JDK 11 Base module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.base.
You can click and view the content of each source code file in the list below.
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⏎ java/io/ObjectStreamField.java
/*
* Copyright (c) 1996, 2015, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package java.io;
import java.lang.reflect.Field;
import jdk.internal.reflect.CallerSensitive;
import jdk.internal.reflect.Reflection;
import sun.reflect.misc.ReflectUtil;
/**
* A description of a Serializable field from a Serializable class. An array
* of ObjectStreamFields is used to declare the Serializable fields of a class.
*
* @author Mike Warres
* @author Roger Riggs
* @see ObjectStreamClass
* @since 1.2
*/
public class ObjectStreamField
implements Comparable<Object>
{
/** field name */
private final String name;
/** canonical JVM signature of field type, if given */
private final String signature;
/** field type (Object.class if unknown non-primitive type) */
private final Class<?> type;
/** lazily constructed signature for the type, if no explicit signature */
private String typeSignature;
/** whether or not to (de)serialize field values as unshared */
private final boolean unshared;
/** corresponding reflective field object, if any */
private final Field field;
/** offset of field value in enclosing field group */
private int offset;
/**
* Create a Serializable field with the specified type. This field should
* be documented with a <code>serialField</code> tag.
*
* @param name the name of the serializable field
* @param type the <code>Class</code> object of the serializable field
*/
public ObjectStreamField(String name, Class<?> type) {
this(name, type, false);
}
/**
* Creates an ObjectStreamField representing a serializable field with the
* given name and type. If unshared is false, values of the represented
* field are serialized and deserialized in the default manner--if the
* field is non-primitive, object values are serialized and deserialized as
* if they had been written and read by calls to writeObject and
* readObject. If unshared is true, values of the represented field are
* serialized and deserialized as if they had been written and read by
* calls to writeUnshared and readUnshared.
*
* @param name field name
* @param type field type
* @param unshared if false, write/read field values in the same manner
* as writeObject/readObject; if true, write/read in the same
* manner as writeUnshared/readUnshared
* @since 1.4
*/
public ObjectStreamField(String name, Class<?> type, boolean unshared) {
if (name == null) {
throw new NullPointerException();
}
this.name = name;
this.type = type;
this.unshared = unshared;
this.field = null;
this.signature = null;
}
/**
* Creates an ObjectStreamField representing a field with the given name,
* signature and unshared setting.
*/
ObjectStreamField(String name, String signature, boolean unshared) {
if (name == null) {
throw new NullPointerException();
}
this.name = name;
this.signature = signature.intern();
this.unshared = unshared;
this.field = null;
switch (signature.charAt(0)) {
case 'Z': type = Boolean.TYPE; break;
case 'B': type = Byte.TYPE; break;
case 'C': type = Character.TYPE; break;
case 'S': type = Short.TYPE; break;
case 'I': type = Integer.TYPE; break;
case 'J': type = Long.TYPE; break;
case 'F': type = Float.TYPE; break;
case 'D': type = Double.TYPE; break;
case 'L':
case '[': type = Object.class; break;
default: throw new IllegalArgumentException("illegal signature");
}
}
/**
* Returns JVM type signature for given primitive.
*/
private static String getPrimitiveSignature(Class<?> cl) {
if (cl == Integer.TYPE)
return "I";
else if (cl == Byte.TYPE)
return "B";
else if (cl == Long.TYPE)
return "J";
else if (cl == Float.TYPE)
return "F";
else if (cl == Double.TYPE)
return "D";
else if (cl == Short.TYPE)
return "S";
else if (cl == Character.TYPE)
return "C";
else if (cl == Boolean.TYPE)
return "Z";
else if (cl == Void.TYPE)
return "V";
else
throw new InternalError();
}
/**
* Returns JVM type signature for given class.
*/
static String getClassSignature(Class<?> cl) {
if (cl.isPrimitive()) {
return getPrimitiveSignature(cl);
} else {
return appendClassSignature(new StringBuilder(), cl).toString();
}
}
static StringBuilder appendClassSignature(StringBuilder sbuf, Class<?> cl) {
while (cl.isArray()) {
sbuf.append('[');
cl = cl.getComponentType();
}
if (cl.isPrimitive()) {
sbuf.append(getPrimitiveSignature(cl));
} else {
sbuf.append('L').append(cl.getName().replace('.', '/')).append(';');
}
return sbuf;
}
/**
* Creates an ObjectStreamField representing the given field with the
* specified unshared setting. For compatibility with the behavior of
* earlier serialization implementations, a "showType" parameter is
* necessary to govern whether or not a getType() call on this
* ObjectStreamField (if non-primitive) will return Object.class (as
* opposed to a more specific reference type).
*/
ObjectStreamField(Field field, boolean unshared, boolean showType) {
this.field = field;
this.unshared = unshared;
name = field.getName();
Class<?> ftype = field.getType();
type = (showType || ftype.isPrimitive()) ? ftype : Object.class;
signature = getClassSignature(ftype).intern();
}
/**
* Get the name of this field.
*
* @return a <code>String</code> representing the name of the serializable
* field
*/
public String getName() {
return name;
}
/**
* Get the type of the field. If the type is non-primitive and this
* <code>ObjectStreamField</code> was obtained from a deserialized {@link
* ObjectStreamClass} instance, then <code>Object.class</code> is returned.
* Otherwise, the <code>Class</code> object for the type of the field is
* returned.
*
* @return a <code>Class</code> object representing the type of the
* serializable field
*/
@CallerSensitive
public Class<?> getType() {
if (System.getSecurityManager() != null) {
Class<?> caller = Reflection.getCallerClass();
if (ReflectUtil.needsPackageAccessCheck(caller.getClassLoader(), type.getClassLoader())) {
ReflectUtil.checkPackageAccess(type);
}
}
return type;
}
/**
* Returns character encoding of field type. The encoding is as follows:
* <blockquote><pre>
* B byte
* C char
* D double
* F float
* I int
* J long
* L class or interface
* S short
* Z boolean
* [ array
* </pre></blockquote>
*
* @return the typecode of the serializable field
*/
// REMIND: deprecate?
public char getTypeCode() {
return getSignature().charAt(0);
}
/**
* Return the JVM type signature.
*
* @return null if this field has a primitive type.
*/
// REMIND: deprecate?
public String getTypeString() {
return isPrimitive() ? null : getSignature();
}
/**
* Offset of field within instance data.
*
* @return the offset of this field
* @see #setOffset
*/
// REMIND: deprecate?
public int getOffset() {
return offset;
}
/**
* Offset within instance data.
*
* @param offset the offset of the field
* @see #getOffset
*/
// REMIND: deprecate?
protected void setOffset(int offset) {
this.offset = offset;
}
/**
* Return true if this field has a primitive type.
*
* @return true if and only if this field corresponds to a primitive type
*/
// REMIND: deprecate?
public boolean isPrimitive() {
char tcode = getTypeCode();
return ((tcode != 'L') && (tcode != '['));
}
/**
* Returns boolean value indicating whether or not the serializable field
* represented by this ObjectStreamField instance is unshared.
*
* @return {@code true} if this field is unshared
*
* @since 1.4
*/
public boolean isUnshared() {
return unshared;
}
/**
* Compare this field with another <code>ObjectStreamField</code>. Return
* -1 if this is smaller, 0 if equal, 1 if greater. Types that are
* primitives are "smaller" than object types. If equal, the field names
* are compared.
*/
// REMIND: deprecate?
public int compareTo(Object obj) {
ObjectStreamField other = (ObjectStreamField) obj;
boolean isPrim = isPrimitive();
if (isPrim != other.isPrimitive()) {
return isPrim ? -1 : 1;
}
return name.compareTo(other.name);
}
/**
* Return a string that describes this field.
*/
public String toString() {
return getSignature() + ' ' + name;
}
/**
* Returns field represented by this ObjectStreamField, or null if
* ObjectStreamField is not associated with an actual field.
*/
Field getField() {
return field;
}
/**
* Returns JVM type signature of field (similar to getTypeString, except
* that signature strings are returned for primitive fields as well).
*/
String getSignature() {
if (signature != null) {
return signature;
}
String sig = typeSignature;
// This lazy calculation is safe since signature can be null iff one
// of the public constructors are used, in which case type is always
// initialized to the exact type we want the signature to represent.
if (sig == null) {
typeSignature = sig = getClassSignature(type).intern();
}
return sig;
}
}
⏎ java/io/ObjectStreamField.java
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File name: java.base-11.0.1-src.zip File size: 8740354 bytes Release date: 2018-11-04 Download
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