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JRE 8 rt.jar - java.* Package Source Code
JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries. JRE (Java Runtime) 8 is the runtime environment included in JDK 8. JRE 8 rt.jar libraries are divided into 6 packages:
com.* - Internal Oracle and Sun Microsystems libraries java.* - Standard Java API libraries. javax.* - Extended Java API libraries. jdk.* - JDK supporting libraries. org.* - Third party libraries. sun.* - Old libraries developed by Sun Microsystems.
JAR File Information:
Directory of C:\fyicenter\jdk-1.8.0_191\jre\lib 63,596,151 rt.jar
Here is the list of Java classes of the java.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.
✍: FYIcenter
⏎ java/net/NetworkInterface.java
/* * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.net; import java.util.Enumeration; import java.util.NoSuchElementException; import sun.security.action.*; import java.security.AccessController; /** * This class represents a Network Interface made up of a name, * and a list of IP addresses assigned to this interface. * It is used to identify the local interface on which a multicast group * is joined. * * Interfaces are normally known by names such as "le0". * * @since 1.4 */ public final class NetworkInterface { private String name; private String displayName; private int index; private InetAddress addrs[]; private InterfaceAddress bindings[]; private NetworkInterface childs[]; private NetworkInterface parent = null; private boolean virtual = false; private static final NetworkInterface defaultInterface; private static final int defaultIndex; /* index of defaultInterface */ static { AccessController.doPrivileged( new java.security.PrivilegedAction<Void>() { public Void run() { System.loadLibrary("net"); return null; } }); init(); defaultInterface = DefaultInterface.getDefault(); if (defaultInterface != null) { defaultIndex = defaultInterface.getIndex(); } else { defaultIndex = 0; } } /** * Returns an NetworkInterface object with index set to 0 and name to null. * Setting such an interface on a MulticastSocket will cause the * kernel to choose one interface for sending multicast packets. * */ NetworkInterface() { } NetworkInterface(String name, int index, InetAddress[] addrs) { this.name = name; this.index = index; this.addrs = addrs; } /** * Get the name of this network interface. * * @return the name of this network interface */ public String getName() { return name; } /** * Convenience method to return an Enumeration with all or a * subset of the InetAddresses bound to this network interface. * <p> * If there is a security manager, its {@code checkConnect} * method is called for each InetAddress. Only InetAddresses where * the {@code checkConnect} doesn't throw a SecurityException * will be returned in the Enumeration. However, if the caller has the * {@link NetPermission}("getNetworkInformation") permission, then all * InetAddresses are returned. * @return an Enumeration object with all or a subset of the InetAddresses * bound to this network interface */ public Enumeration<InetAddress> getInetAddresses() { class checkedAddresses implements Enumeration<InetAddress> { private int i=0, count=0; private InetAddress local_addrs[]; checkedAddresses() { local_addrs = new InetAddress[addrs.length]; boolean trusted = true; SecurityManager sec = System.getSecurityManager(); if (sec != null) { try { sec.checkPermission(new NetPermission("getNetworkInformation")); } catch (SecurityException e) { trusted = false; } } for (int j=0; j<addrs.length; j++) { try { if (sec != null && !trusted) { sec.checkConnect(addrs[j].getHostAddress(), -1); } local_addrs[count++] = addrs[j]; } catch (SecurityException e) { } } } public InetAddress nextElement() { if (i < count) { return local_addrs[i++]; } else { throw new NoSuchElementException(); } } public boolean hasMoreElements() { return (i < count); } } return new checkedAddresses(); } /** * Get a List of all or a subset of the {@code InterfaceAddresses} * of this network interface. * <p> * If there is a security manager, its {@code checkConnect} * method is called with the InetAddress for each InterfaceAddress. * Only InterfaceAddresses where the {@code checkConnect} doesn't throw * a SecurityException will be returned in the List. * * @return a {@code List} object with all or a subset of the * InterfaceAddresss of this network interface * @since 1.6 */ public java.util.List<InterfaceAddress> getInterfaceAddresses() { java.util.List<InterfaceAddress> lst = new java.util.ArrayList<InterfaceAddress>(1); SecurityManager sec = System.getSecurityManager(); for (int j=0; j<bindings.length; j++) { try { if (sec != null) { sec.checkConnect(bindings[j].getAddress().getHostAddress(), -1); } lst.add(bindings[j]); } catch (SecurityException e) { } } return lst; } /** * Get an Enumeration with all the subinterfaces (also known as virtual * interfaces) attached to this network interface. * <p> * For instance eth0:1 will be a subinterface to eth0. * * @return an Enumeration object with all of the subinterfaces * of this network interface * @since 1.6 */ public Enumeration<NetworkInterface> getSubInterfaces() { class subIFs implements Enumeration<NetworkInterface> { private int i=0; subIFs() { } public NetworkInterface nextElement() { if (i < childs.length) { return childs[i++]; } else { throw new NoSuchElementException(); } } public boolean hasMoreElements() { return (i < childs.length); } } return new subIFs(); } /** * Returns the parent NetworkInterface of this interface if this is * a subinterface, or {@code null} if it is a physical * (non virtual) interface or has no parent. * * @return The {@code NetworkInterface} this interface is attached to. * @since 1.6 */ public NetworkInterface getParent() { return parent; } /** * Returns the index of this network interface. The index is an integer greater * or equal to zero, or {@code -1} for unknown. This is a system specific value * and interfaces with the same name can have different indexes on different * machines. * * @return the index of this network interface or {@code -1} if the index is * unknown * @see #getByIndex(int) * @since 1.7 */ public int getIndex() { return index; } /** * Get the display name of this network interface. * A display name is a human readable String describing the network * device. * * @return a non-empty string representing the display name of this network * interface, or null if no display name is available. */ public String getDisplayName() { /* strict TCK conformance */ return "".equals(displayName) ? null : displayName; } /** * Searches for the network interface with the specified name. * * @param name * The name of the network interface. * * @return A {@code NetworkInterface} with the specified name, * or {@code null} if there is no network interface * with the specified name. * * @throws SocketException * If an I/O error occurs. * * @throws NullPointerException * If the specified name is {@code null}. */ public static NetworkInterface getByName(String name) throws SocketException { if (name == null) throw new NullPointerException(); return getByName0(name); } /** * Get a network interface given its index. * * @param index an integer, the index of the interface * @return the NetworkInterface obtained from its index, or {@code null} if * there is no interface with such an index on the system * @throws SocketException if an I/O error occurs. * @throws IllegalArgumentException if index has a negative value * @see #getIndex() * @since 1.7 */ public static NetworkInterface getByIndex(int index) throws SocketException { if (index < 0) throw new IllegalArgumentException("Interface index can't be negative"); return getByIndex0(index); } /** * Convenience method to search for a network interface that * has the specified Internet Protocol (IP) address bound to * it. * <p> * If the specified IP address is bound to multiple network * interfaces it is not defined which network interface is * returned. * * @param addr * The {@code InetAddress} to search with. * * @return A {@code NetworkInterface} * or {@code null} if there is no network interface * with the specified IP address. * * @throws SocketException * If an I/O error occurs. * * @throws NullPointerException * If the specified address is {@code null}. */ public static NetworkInterface getByInetAddress(InetAddress addr) throws SocketException { if (addr == null) { throw new NullPointerException(); } if (addr instanceof Inet4Address) { Inet4Address inet4Address = (Inet4Address) addr; if (inet4Address.holder.family != InetAddress.IPv4) { throw new IllegalArgumentException("invalid family type: " + inet4Address.holder.family); } } else if (addr instanceof Inet6Address) { Inet6Address inet6Address = (Inet6Address) addr; if (inet6Address.holder.family != InetAddress.IPv6) { throw new IllegalArgumentException("invalid family type: " + inet6Address.holder.family); } } else { throw new IllegalArgumentException("invalid address type: " + addr); } return getByInetAddress0(addr); } /** * Returns all the interfaces on this machine. The {@code Enumeration} * contains at least one element, possibly representing a loopback * interface that only supports communication between entities on * this machine. * * NOTE: can use getNetworkInterfaces()+getInetAddresses() * to obtain all IP addresses for this node * * @return an Enumeration of NetworkInterfaces found on this machine * @exception SocketException if an I/O error occurs. */ public static Enumeration<NetworkInterface> getNetworkInterfaces() throws SocketException { final NetworkInterface[] netifs = getAll(); // specified to return null if no network interfaces if (netifs == null) return null; return new Enumeration<NetworkInterface>() { private int i = 0; public NetworkInterface nextElement() { if (netifs != null && i < netifs.length) { NetworkInterface netif = netifs[i++]; return netif; } else { throw new NoSuchElementException(); } } public boolean hasMoreElements() { return (netifs != null && i < netifs.length); } }; } private native static NetworkInterface[] getAll() throws SocketException; private native static NetworkInterface getByName0(String name) throws SocketException; private native static NetworkInterface getByIndex0(int index) throws SocketException; private native static NetworkInterface getByInetAddress0(InetAddress addr) throws SocketException; /** * Returns whether a network interface is up and running. * * @return {@code true} if the interface is up and running. * @exception SocketException if an I/O error occurs. * @since 1.6 */ public boolean isUp() throws SocketException { return isUp0(name, index); } /** * Returns whether a network interface is a loopback interface. * * @return {@code true} if the interface is a loopback interface. * @exception SocketException if an I/O error occurs. * @since 1.6 */ public boolean isLoopback() throws SocketException { return isLoopback0(name, index); } /** * Returns whether a network interface is a point to point interface. * A typical point to point interface would be a PPP connection through * a modem. * * @return {@code true} if the interface is a point to point * interface. * @exception SocketException if an I/O error occurs. * @since 1.6 */ public boolean isPointToPoint() throws SocketException { return isP2P0(name, index); } /** * Returns whether a network interface supports multicasting or not. * * @return {@code true} if the interface supports Multicasting. * @exception SocketException if an I/O error occurs. * @since 1.6 */ public boolean supportsMulticast() throws SocketException { return supportsMulticast0(name, index); } /** * Returns the hardware address (usually MAC) of the interface if it * has one and if it can be accessed given the current privileges. * If a security manager is set, then the caller must have * the permission {@link NetPermission}("getNetworkInformation"). * * @return a byte array containing the address, or {@code null} if * the address doesn't exist, is not accessible or a security * manager is set and the caller does not have the permission * NetPermission("getNetworkInformation") * * @exception SocketException if an I/O error occurs. * @since 1.6 */ public byte[] getHardwareAddress() throws SocketException { SecurityManager sec = System.getSecurityManager(); if (sec != null) { try { sec.checkPermission(new NetPermission("getNetworkInformation")); } catch (SecurityException e) { if (!getInetAddresses().hasMoreElements()) { // don't have connect permission to any local address return null; } } } for (InetAddress addr : addrs) { if (addr instanceof Inet4Address) { return getMacAddr0(((Inet4Address)addr).getAddress(), name, index); } } return getMacAddr0(null, name, index); } /** * Returns the Maximum Transmission Unit (MTU) of this interface. * * @return the value of the MTU for that interface. * @exception SocketException if an I/O error occurs. * @since 1.6 */ public int getMTU() throws SocketException { return getMTU0(name, index); } /** * Returns whether this interface is a virtual interface (also called * subinterface). * Virtual interfaces are, on some systems, interfaces created as a child * of a physical interface and given different settings (like address or * MTU). Usually the name of the interface will the name of the parent * followed by a colon (:) and a number identifying the child since there * can be several virtual interfaces attached to a single physical * interface. * * @return {@code true} if this interface is a virtual interface. * @since 1.6 */ public boolean isVirtual() { return virtual; } private native static boolean isUp0(String name, int ind) throws SocketException; private native static boolean isLoopback0(String name, int ind) throws SocketException; private native static boolean supportsMulticast0(String name, int ind) throws SocketException; private native static boolean isP2P0(String name, int ind) throws SocketException; private native static byte[] getMacAddr0(byte[] inAddr, String name, int ind) throws SocketException; private native static int getMTU0(String name, int ind) throws SocketException; /** * Compares this object against the specified object. * The result is {@code true} if and only if the argument is * not {@code null} and it represents the same NetworkInterface * as this object. * <p> * Two instances of {@code NetworkInterface} represent the same * NetworkInterface if both name and addrs are the same for both. * * @param obj the object to compare against. * @return {@code true} if the objects are the same; * {@code false} otherwise. * @see java.net.InetAddress#getAddress() */ public boolean equals(Object obj) { if (!(obj instanceof NetworkInterface)) { return false; } NetworkInterface that = (NetworkInterface)obj; if (this.name != null ) { if (!this.name.equals(that.name)) { return false; } } else { if (that.name != null) { return false; } } if (this.addrs == null) { return that.addrs == null; } else if (that.addrs == null) { return false; } /* Both addrs not null. Compare number of addresses */ if (this.addrs.length != that.addrs.length) { return false; } InetAddress[] thatAddrs = that.addrs; int count = thatAddrs.length; for (int i=0; i<count; i++) { boolean found = false; for (int j=0; j<count; j++) { if (addrs[i].equals(thatAddrs[j])) { found = true; break; } } if (!found) { return false; } } return true; } public int hashCode() { return name == null? 0: name.hashCode(); } public String toString() { String result = "name:"; result += name == null? "null": name; if (displayName != null) { result += " (" + displayName + ")"; } return result; } private static native void init(); /** * Returns the default network interface of this system * * @return the default interface */ static NetworkInterface getDefault() { return defaultInterface; } }
⏎ java/net/NetworkInterface.java
Or download all of them as a single archive file:
File name: jre-rt-java-1.8.0_191-src.zip File size: 6664831 bytes Release date: 2018-10-28 Download
⇒ JRE 8 rt.jar - javax.* Package Source Code
2023-08-23, 250434👍, 4💬
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