JDK 17 java.rmi.jmod - RMI Module
JDK 17 java.rmi.jmod is the JMOD file for JDK 17 RMI (Remote Method Invocation) module.
JDK 17 RMI module compiled class files are stored in \fyicenter\jdk-17.0.5\jmods\java.rmi.jmod.
JDK 17 RMI module compiled class files are also linked and stored in the \fyicenter\jdk-17.0.5\lib\modules JImage file.
JDK 17 RMI module source code files are stored in \fyicenter\jdk-17.0.5\lib\src.zip\java.rmi.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ sun/rmi/server/MarshalInputStream.java
/*
* Copyright (c) 1996, 2021, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package sun.rmi.server;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectStreamClass;
import java.io.StreamCorruptedException;
import java.util.*;
import java.security.AccessControlException;
import java.security.Permission;
import java.rmi.server.RMIClassLoader;
import java.security.PrivilegedAction;
/**
* MarshalInputStream is an extension of ObjectInputStream. When resolving
* a class, it reads an object from the stream written by a corresponding
* MarshalOutputStream. If the class to be resolved is not available
* locally, from the first class loader on the execution stack, or from the
* context class loader of the current thread, it will attempt to load the
* class from the location annotated by the sending MarshalOutputStream.
* This location object must be a string representing a path of URLs.
*
* A new MarshalInputStream should be created to deserialize remote objects or
* graphs containing remote objects. Objects are created from the stream
* using the ObjectInputStream.readObject method.
*
* @author Peter Jones
*/
public class MarshalInputStream extends ObjectInputStream {
/**
* Value of "java.rmi.server.useCodebaseOnly" property,
* as cached at class initialization time.
*
* The default value is true. That is, the value is true
* if the property is absent or is not equal to "false".
* The value is only false when the property is present
* and is equal to "false".
*/
@SuppressWarnings("removal")
private static final boolean useCodebaseOnlyProperty =
! java.security.AccessController.doPrivileged(
(PrivilegedAction<String>) () -> System.getProperty(
"java.rmi.server.useCodebaseOnly", "true"))
.equalsIgnoreCase("false");
/** table to hold sun classes to which access is explicitly permitted */
protected static Map<String, Class<?>> permittedSunClasses
= new HashMap<>(3);
/** if true, don't try superclass first in resolveClass() */
private boolean skipDefaultResolveClass = false;
/** callbacks to make when done() called: maps Object to Runnable */
private final Map<Object, Runnable> doneCallbacks
= new HashMap<>(3);
/**
* if true, load classes (if not available locally) only from the
* URL specified by the "java.rmi.server.codebase" property.
*/
private boolean useCodebaseOnly = useCodebaseOnlyProperty;
/*
* During parameter unmarshalling RMI needs to explicitly permit
* access to sun.* stub classes
*/
static {
try {
String registry = "sun.rmi.registry.RegistryImpl_Stub";
permittedSunClasses.put(registry, Class.forName(registry));
} catch (ClassNotFoundException e) {
throw new NoClassDefFoundError("Missing system class: " +
e.getMessage());
}
}
/**
* Create a new MarshalInputStream object.
*/
public MarshalInputStream(InputStream in)
throws IOException, StreamCorruptedException
{
super(in);
}
/**
* Returns a callback previously registered via the setDoneCallback
* method with given key, or null if no callback has yet been registered
* with that key.
*/
public Runnable getDoneCallback(Object key) {
return doneCallbacks.get(key); // not thread-safe
}
/**
* Registers a callback to make when this stream's done() method is
* invoked, along with a key for retrieving the same callback instance
* subsequently from the getDoneCallback method.
*/
public void setDoneCallback(Object key, Runnable callback) {
//assert(!doneCallbacks.contains(key));
doneCallbacks.put(key, callback); // not thread-safe
}
/**
* Indicates that the user of this MarshalInputStream is done reading
* objects from it, so all callbacks registered with the setDoneCallback
* method should now be (synchronously) executed. When this method
* returns, there are no more callbacks registered.
*
* This method is implicitly invoked by close() before it delegates to
* the superclass's close method.
*/
public void done() {
Iterator<Runnable> iter = doneCallbacks.values().iterator();
while (iter.hasNext()) { // not thread-safe
Runnable callback = iter.next();
callback.run();
}
doneCallbacks.clear();
}
/**
* Closes this stream, implicitly invoking done() first.
*/
public void close() throws IOException {
done();
super.close();
}
/**
* resolveClass is extended to acquire (if present) the location
* from which to load the specified class.
* It will find, load, and return the class.
*/
protected Class<?> resolveClass(ObjectStreamClass classDesc)
throws IOException, ClassNotFoundException
{
/*
* Always read annotation written by MarshalOutputStream
* describing where to load class from.
*/
Object annotation = readLocation();
String className = classDesc.getName();
/*
* Unless we were told to skip this consideration, choose the
* "default loader" to simulate the default ObjectInputStream
* resolveClass mechanism (that is, choose the first non-platform
* loader on the execution stack) to maximize the likelihood of
* type compatibility with calling code. (This consideration
* is skipped during server parameter unmarshalling using the 1.2
* stub protocol, because there would never be a non-null class
* loader on the stack in that situation anyway.)
*/
ClassLoader defaultLoader =
skipDefaultResolveClass ? null : latestUserDefinedLoader();
/*
* If the "java.rmi.server.useCodebaseOnly" property was true or
* useCodebaseOnly() was called or the annotation is not a String,
* load from the local loader using the "java.rmi.server.codebase"
* URL. Otherwise, load from a loader using the codebase URL in
* the annotation.
*/
String codebase = null;
if (!useCodebaseOnly && annotation instanceof String) {
codebase = (String) annotation;
}
try {
return RMIClassLoader.loadClass(codebase, className,
defaultLoader);
} catch (@SuppressWarnings("removal") AccessControlException e) {
return checkSunClass(className, e);
} catch (ClassNotFoundException e) {
/*
* Fix for 4442373: delegate to ObjectInputStream.resolveClass()
* to resolve primitive classes.
*/
try {
if (Character.isLowerCase(className.charAt(0)) &&
className.indexOf('.') == -1)
{
return super.resolveClass(classDesc);
}
} catch (ClassNotFoundException e2) {
}
throw e;
}
}
/**
* resolveProxyClass is extended to acquire (if present) the location
* to determine the class loader to define the proxy class in.
*/
protected Class<?> resolveProxyClass(String[] interfaces)
throws IOException, ClassNotFoundException
{
/*
* Always read annotation written by MarshalOutputStream.
*/
Object annotation = readLocation();
ClassLoader defaultLoader =
skipDefaultResolveClass ? null : latestUserDefinedLoader();
String codebase = null;
if (!useCodebaseOnly && annotation instanceof String) {
codebase = (String) annotation;
}
return RMIClassLoader.loadProxyClass(codebase, interfaces,
defaultLoader);
}
/*
* Returns the first non-platform class loader up the execution stack,
* or platform class loader if only code from the platform class loader or null
* is on the stack.
*/
private static ClassLoader latestUserDefinedLoader() {
return jdk.internal.misc.VM.latestUserDefinedLoader();
}
/**
* Fix for 4179055: Need to assist resolving sun stubs; resolve
* class locally if it is a "permitted" sun class
*/
@SuppressWarnings("removal")
private Class<?> checkSunClass(String className, AccessControlException e)
throws AccessControlException
{
// ensure that we are giving out a stub for the correct reason
Permission perm = e.getPermission();
String name = null;
if (perm != null) {
name = perm.getName();
}
Class<?> resolvedClass = permittedSunClasses.get(className);
// if class not permitted, throw the SecurityException
if ((name == null) ||
(resolvedClass == null) ||
((!name.equals("accessClassInPackage.sun.rmi.server")) &&
(!name.equals("accessClassInPackage.sun.rmi.registry"))))
{
throw e;
}
return resolvedClass;
}
/**
* Return the location for the class in the stream. This method can
* be overridden by subclasses that store this annotation somewhere
* else than as the next object in the stream, as is done by this class.
*/
protected Object readLocation()
throws IOException, ClassNotFoundException
{
return readObject();
}
/**
* Set a flag to indicate that the superclass's default resolveClass()
* implementation should not be invoked by our resolveClass().
*/
void skipDefaultResolveClass() {
skipDefaultResolveClass = true;
}
/**
* Disable code downloading except from the URL specified by the
* "java.rmi.server.codebase" property.
*/
void useCodebaseOnly() {
useCodebaseOnly = true;
}
}
⏎ sun/rmi/server/MarshalInputStream.java
Or download all of them as a single archive file:
File name: java.rmi-17.0.5-src.zip File size: 220001 bytes Release date: 2022-09-13 Download
⇒ JDK 17 java.scripting.jmod - Scripting Module
2023-11-06, 13160👍, 0💬
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