jdk-sandbox: comparison src/java.base/share/classes/java/lang/System.java

equal deleted inserted replaced

-:b6fb84357542
+:3a225d9cabe1
 import sun.reflect.annotation.AnnotationType;
 import sun.nio.ch.Interruptible;
 import sun.security.util.SecurityConstants;
 /**
-* The <code>System</code> class contains several useful class fields
+* The {@code System} class contains several useful class fields
 * and methods. It cannot be instantiated.
 *
-* <p>Among the facilities provided by the <code>System</code> class
+* Among the facilities provided by the {@code System} class
 * are standard input, standard output, and error output streams;
 * access to externally defined properties and environment
 * variables; a means of loading files and libraries; and a utility
 * method for quickly copying a portion of an array.
 *
-* @author  unascribed
 * @since   1.0
 */
 public final class System {
-/* register the natives via the static initializer.
+/* Register the natives via the static initializer.
 *
 * VM will invoke the initializeSystemClass method to complete
 * the initialization for this class separated from clinit.
 * Note that to use properties set by the VM, see the constraints
 * described in the initializeSystemClass method.
 * a line of output data is:
 * <blockquote><pre>
 *     System.out.println(data)
 * </pre></blockquote>
 * <p>
-* See the <code>println</code> methods in class <code>PrintStream</code>.
+* See the {@code println} methods in class {@code PrintStream}.
 *
 * @see     java.io.PrintStream#println()
 * @see     java.io.PrintStream#println(boolean)
 * @see     java.io.PrintStream#println(char)
 * @see     java.io.PrintStream#println(char[])
 * Typically this stream corresponds to display output or another
 * output destination specified by the host environment or user. By
 * convention, this output stream is used to display error messages
 * or other information that should come to the immediate attention
 * of a user even if the principal output stream, the value of the
-* variable <code>out</code>, has been redirected to a file or other
+* variable {@code out}, has been redirected to a file or other
 * destination that is typically not continuously monitored.
 */
 public static final PrintStream err = null;
 /* The security manager for the system.
 private static volatile SecurityManager security;
 /**
 * Reassigns the "standard" input stream.
 *
-* <p>First, if there is a security manager, its <code>checkPermission</code>
+* First, if there is a security manager, its {@code checkPermission}
-* method is called with a <code>RuntimePermission("setIO")</code> permission
+* method is called with a {@code RuntimePermission("setIO")} permission
 *  to see if it's ok to reassign the "standard" input stream.
 *
 * @param in the new standard input stream.
 *
 * @throws SecurityException
 *        if a security manager exists and its
-*        <code>checkPermission</code> method doesn't allow
+*        {@code checkPermission} method doesn't allow
 *        reassigning of the standard input stream.
 *
 * @see SecurityManager#checkPermission
 * @see java.lang.RuntimePermission
 *
 }
 /**
 * Reassigns the "standard" output stream.
 *
-* <p>First, if there is a security manager, its <code>checkPermission</code>
+* First, if there is a security manager, its {@code checkPermission}
-* method is called with a <code>RuntimePermission("setIO")</code> permission
+* method is called with a {@code RuntimePermission("setIO")} permission
 *  to see if it's ok to reassign the "standard" output stream.
 *
 * @param out the new standard output stream
 *
 * @throws SecurityException
 *        if a security manager exists and its
-*        <code>checkPermission</code> method doesn't allow
+*        {@code checkPermission} method doesn't allow
 *        reassigning of the standard output stream.
 *
 * @see SecurityManager#checkPermission
 * @see java.lang.RuntimePermission
 *
 }
 /**
 * Reassigns the "standard" error output stream.
 *
-* <p>First, if there is a security manager, its <code>checkPermission</code>
+* First, if there is a security manager, its {@code checkPermission}
-* method is called with a <code>RuntimePermission("setIO")</code> permission
+* method is called with a {@code RuntimePermission("setIO")} permission
 *  to see if it's ok to reassign the "standard" error output stream.
 *
 * @param err the new standard error output stream.
 *
 * @throws SecurityException
 *        if a security manager exists and its
-*        <code>checkPermission</code> method doesn't allow
+*        {@code checkPermission} method doesn't allow
 *        reassigning of the standard error output stream.
 *
 * @see SecurityManager#checkPermission
 * @see java.lang.RuntimePermission
 *
 /**
 * Returns the channel inherited from the entity that created this
 * Java virtual machine.
 *
-* <p> This method returns the channel obtained by invoking the
+* This method returns the channel obtained by invoking the
 * {@link java.nio.channels.spi.SelectorProvider#inheritedChannel
 * inheritedChannel} method of the system-wide default
-* {@link java.nio.channels.spi.SelectorProvider} object. </p>
+* {@link java.nio.channels.spi.SelectorProvider} object.
 *
 * <p> In addition to the network-oriented channels described in
 * {@link java.nio.channels.spi.SelectorProvider#inheritedChannel
 * inheritedChannel}, this method may return other kinds of
 * channels in the future.
 private static native void setErr0(PrintStream err);
 /**
 * Sets the System security.
 *
-* <p> If there is a security manager already installed, this method first
+* If there is a security manager already installed, this method first
-* calls the security manager's <code>checkPermission</code> method
+* calls the security manager's {@code checkPermission} method
-* with a <code>RuntimePermission("setSecurityManager")</code>
+* with a {@code RuntimePermission("setSecurityManager")}
 * permission to ensure it's ok to replace the existing
 * security manager.
-* This may result in throwing a <code>SecurityException</code>.
+* This may result in throwing a {@code SecurityException}.
 *
 * <p> Otherwise, the argument is established as the current
-* security manager. If the argument is <code>null</code> and no
+* security manager. If the argument is {@code null} and no
 * security manager has been established, then no action is taken and
 * the method simply returns.
 *
 * @param      s   the security manager.
-* @exception  SecurityException  if the security manager has already
+* @throws     SecurityException  if the security manager has already
-*             been set and its <code>checkPermission</code> method
+*             been set and its {@code checkPermission} method
 *             doesn't allow it to be replaced.
 * @see #getSecurityManager
 * @see SecurityManager#checkPermission
 * @see java.lang.RuntimePermission
 */
 /**
 * Gets the system security interface.
 *
 * @return  if a security manager has already been established for the
 *          current application, then that security manager is returned;
-*          otherwise, <code>null</code> is returned.
+*          otherwise, {@code null} is returned.
 * @see     #setSecurityManager
 */
 public static SecurityManager getSecurityManager() {
 return security;
 }
 * the granularity of the value depends on the underlying
 * operating system and may be larger.  For example, many
 * operating systems measure time in units of tens of
 * milliseconds.
 *
-* <p> See the description of the class <code>Date</code> for
+* <p> See the description of the class {@code Date} for
 * a discussion of slight discrepancies that may arise between
 * "computer time" and coordinated universal time (UTC).
 *
 * @return  the difference, measured in milliseconds, between
 *          the current time and midnight, January 1, 1970 UTC.
 /**
 * Returns the current value of the running Java Virtual Machine's
 * high-resolution time source, in nanoseconds.
 *
-* <p>This method can only be used to measure elapsed time and is
+* This method can only be used to measure elapsed time and is
 * not related to any other notion of system or wall-clock time.
 * The value returned represents nanoseconds since some fixed but
 * arbitrary <i>origin</i> time (perhaps in the future, so values
 * may be negative).  The same origin is used by all invocations of
 * this method in an instance of a Java virtual machine; other
 /**
 * Copies an array from the specified source array, beginning at the
 * specified position, to the specified position of the destination array.
 * A subsequence of array components are copied from the source
-* array referenced by <code>src</code> to the destination array
+* array referenced by {@code src} to the destination array
-* referenced by <code>dest</code>. The number of components copied is
+* referenced by {@code dest}. The number of components copied is
-* equal to the <code>length</code> argument. The components at
+* equal to the {@code length} argument. The components at
-* positions <code>srcPos</code> through
+* positions {@code srcPos} through
-* <code>srcPos+length-1</code> in the source array are copied into
+* {@code srcPos+length-1} in the source array are copied into
-* positions <code>destPos</code> through
+* positions {@code destPos} through
-* <code>destPos+length-1</code>, respectively, of the destination
+* {@code destPos+length-1}, respectively, of the destination
 * array.
 * <p>
-* If the <code>src</code> and <code>dest</code> arguments refer to the
+* If the {@code src} and {@code dest} arguments refer to the
 * same array object, then the copying is performed as if the
-* components at positions <code>srcPos</code> through
+* components at positions {@code srcPos} through
-* <code>srcPos+length-1</code> were first copied to a temporary
+* {@code srcPos+length-1} were first copied to a temporary
-* array with <code>length</code> components and then the contents of
+* array with {@code length} components and then the contents of
 * the temporary array were copied into positions
-* <code>destPos</code> through <code>destPos+length-1</code> of the
+* {@code destPos} through {@code destPos+length-1} of the
 * destination array.
 * <p>
-* If <code>dest</code> is <code>null</code>, then a
+* If {@code dest} is {@code null}, then a
-* <code>NullPointerException</code> is thrown.
+* {@code NullPointerException} is thrown.
 * <p>
-* If <code>src</code> is <code>null</code>, then a
+* If {@code src} is {@code null}, then a
-* <code>NullPointerException</code> is thrown and the destination
+* {@code NullPointerException} is thrown and the destination
 * array is not modified.
 * <p>
 * Otherwise, if any of the following is true, an
-* <code>ArrayStoreException</code> is thrown and the destination is
+* {@code ArrayStoreException} is thrown and the destination is
 * not modified:
 * <ul>
-* <li>The <code>src</code> argument refers to an object that is not an
+* <li>The {@code src} argument refers to an object that is not an
 *     array.
-* <li>The <code>dest</code> argument refers to an object that is not an
+* <li>The {@code dest} argument refers to an object that is not an
 *     array.
-* <li>The <code>src</code> argument and <code>dest</code> argument refer
+* <li>The {@code src} argument and {@code dest} argument refer
 *     to arrays whose component types are different primitive types.
-* <li>The <code>src</code> argument refers to an array with a primitive
+* <li>The {@code src} argument refers to an array with a primitive
-*    component type and the <code>dest</code> argument refers to an array
+*    component type and the {@code dest} argument refers to an array
 *     with a reference component type.
-* <li>The <code>src</code> argument refers to an array with a reference
+* <li>The {@code src} argument refers to an array with a reference
-*    component type and the <code>dest</code> argument refers to an array
+*    component type and the {@code dest} argument refers to an array
 *     with a primitive component type.
 * </ul>
 * <p>
 * Otherwise, if any of the following is true, an
-* <code>IndexOutOfBoundsException</code> is
+* {@code IndexOutOfBoundsException} is
 * thrown and the destination is not modified:
 * <ul>
-* <li>The <code>srcPos</code> argument is negative.
+* <li>The {@code srcPos} argument is negative.
-* <li>The <code>destPos</code> argument is negative.
+* <li>The {@code destPos} argument is negative.
-* <li>The <code>length</code> argument is negative.
+* <li>The {@code length} argument is negative.
-* <li><code>srcPos+length</code> is greater than
+* <li>{@code srcPos+length} is greater than
-*     <code>src.length</code>, the length of the source array.
+*     {@code src.length}, the length of the source array.
-* <li><code>destPos+length</code> is greater than
+* <li>{@code destPos+length} is greater than
-*     <code>dest.length</code>, the length of the destination array.
+*     {@code dest.length}, the length of the destination array.
 * </ul>
 * <p>
 * Otherwise, if any actual component of the source array from
-* position <code>srcPos</code> through
+* position {@code srcPos} through
-* <code>srcPos+length-1</code> cannot be converted to the component
+* {@code srcPos+length-1} cannot be converted to the component
 * type of the destination array by assignment conversion, an
-* <code>ArrayStoreException</code> is thrown. In this case, let
+* {@code ArrayStoreException} is thrown. In this case, let
 * <b><i>k</i></b> be the smallest nonnegative integer less than
-* length such that <code>src[srcPos+</code><i>k</i><code>]</code>
+* length such that {@code src[srcPos+}<i>k</i>{@code ]}
 * cannot be converted to the component type of the destination
 * array; when the exception is thrown, source array components from
-* positions <code>srcPos</code> through
+* positions {@code srcPos} through
-* <code>srcPos+</code><i>k</i><code>-1</code>
+* {@code srcPos+}<i>k</i>{@code -1}
 * will already have been copied to destination array positions
-* <code>destPos</code> through
+* {@code destPos} through
-* <code>destPos+</code><i>k</I><code>-1</code> and no other
+* {@code destPos+}<i>k</I>{@code -1} and no other
 * positions of the destination array will have been modified.
 * (Because of the restrictions already itemized, this
 * paragraph effectively applies only to the situation where both
 * arrays have component types that are reference types.)
 *
 * @param      src      the source array.
 * @param      srcPos   starting position in the source array.
 * @param      dest     the destination array.
 * @param      destPos  starting position in the destination data.
 * @param      length   the number of array elements to be copied.
-* @exception  IndexOutOfBoundsException  if copying would cause
+* @throws     IndexOutOfBoundsException  if copying would cause
-*               access of data outside array bounds.
+*             access of data outside array bounds.
-* @exception  ArrayStoreException  if an element in the <code>src</code>
+* @throws     ArrayStoreException  if an element in the {@code src}
-*               array could not be stored into the <code>dest</code> array
+*             array could not be stored into the {@code dest} array
-*               because of a type mismatch.
+*             because of a type mismatch.
-* @exception  NullPointerException if either <code>src</code> or
+* @throws     NullPointerException if either {@code src} or
-*               <code>dest</code> is <code>null</code>.
+*             {@code dest} is {@code null}.
 */
 @HotSpotIntrinsicCandidate
 public static native void arraycopy(Object src,  int  srcPos,
 Object dest, int destPos,
 int length);
 private static Properties props;
 private static native Properties initProperties(Properties props);
 /**
 * Determines the current system properties.
-* <p>
+*
 * First, if there is a security manager, its
-* <code>checkPropertiesAccess</code> method is called with no
+* {@code checkPropertiesAccess} method is called with no
 * arguments. This may result in a security exception.
 * <p>
 * The current set of system properties for use by the
 * {@link #getProperty(String)} method is returned as a
-* <code>Properties</code> object. If there is no current set of
+* {@code Properties} object. If there is no current set of
 * system properties, a set of system properties is first created and
 * initialized. This set of system properties always includes values
 * for the following keys:
 * <table class="striped" style="text-align:left">
 * <caption style="display:none">Shows property keys and associated values</caption>
 * <thead>
 * <tr><th scope="col">Key</th>
 *     <th scope="col">Description of Associated Value</th></tr>
 * </thead>
 * <tbody>
-* <tr><th scope="row"><code>java.version</code></th>
+* <tr><th scope="row">{@code java.version}</th>
 *     <td>Java Runtime Environment version, which may be interpreted
 *     as a {@link Runtime.Version}</td></tr>
-* <tr><th scope="row"><code>java.version.date</code></th>
+* <tr><th scope="row">{@code java.version.date}</th>
 *     <td>Java Runtime Environment version date, in ISO-8601 YYYY-MM-DD
 *     format, which may be interpreted as a {@link
 *     java.time.LocalDate}</td></tr>
-* <tr><th scope="row"><code>java.vendor</code></th>
+* <tr><th scope="row">{@code java.vendor}</th>
 *     <td>Java Runtime Environment vendor</td></tr>
-* <tr><th scope="row"><code>java.vendor.url</code></th>
+* <tr><th scope="row">{@code java.vendor.url}</th>
 *     <td>Java vendor URL</td></tr>
-* <tr><th scope="row"><code>java.vendor.version</code></th>
+* <tr><th scope="row">{@code java.vendor.version}</th>
 *     <td>Java vendor version</td></tr>
-* <tr><th scope="row"><code>java.home</code></th>
+* <tr><th scope="row">{@code java.home}</th>
 *     <td>Java installation directory</td></tr>
-* <tr><th scope="row"><code>java.vm.specification.version</code></th>
+* <tr><th scope="row">{@code java.vm.specification.version}</th>
 *     <td>Java Virtual Machine specification version which may be
 *     interpreted as a {@link Runtime.Version}</td></tr>
-* <tr><th scope="row"><code>java.vm.specification.vendor</code></th>
+* <tr><th scope="row">{@code java.vm.specification.vendor}</th>
 *     <td>Java Virtual Machine specification vendor</td></tr>
-* <tr><th scope="row"><code>java.vm.specification.name</code></th>
+* <tr><th scope="row">{@code java.vm.specification.name}</th>
 *     <td>Java Virtual Machine specification name</td></tr>
-* <tr><th scope="row"><code>java.vm.version</code></th>
+* <tr><th scope="row">{@code java.vm.version}</th>
 *     <td>Java Virtual Machine implementation version which may be
 *     interpreted as a {@link Runtime.Version}</td></tr>
-* <tr><th scope="row"><code>java.vm.vendor</code></th>
+* <tr><th scope="row">{@code java.vm.vendor}</th>
 *     <td>Java Virtual Machine implementation vendor</td></tr>
-* <tr><th scope="row"><code>java.vm.name</code></th>
+* <tr><th scope="row">{@code java.vm.name}</th>
 *     <td>Java Virtual Machine implementation name</td></tr>
-* <tr><th scope="row"><code>java.specification.version</code></th>
+* <tr><th scope="row">{@code java.specification.version}</th>
 *     <td>Java Runtime Environment specification version which may be
 *     interpreted as a {@link Runtime.Version}</td></tr>
-* <tr><th scope="row"><code>java.specification.vendor</code></th>
+* <tr><th scope="row">{@code java.specification.vendor}</th>
 *     <td>Java Runtime Environment specification  vendor</td></tr>
-* <tr><th scope="row"><code>java.specification.name</code></th>
+* <tr><th scope="row">{@code java.specification.name}</th>
 *     <td>Java Runtime Environment specification  name</td></tr>
-* <tr><th scope="row"><code>java.class.version</code></th>
+* <tr><th scope="row">{@code java.class.version}</th>
 *     <td>Java class format version number</td></tr>
-* <tr><th scope="row"><code>java.class.path</code></th>
+* <tr><th scope="row">{@code java.class.path}</th>
 *     <td>Java class path  (refer to
 *        {@link ClassLoader#getSystemClassLoader()} for details)</td></tr>
-* <tr><th scope="row"><code>java.library.path</code></th>
+* <tr><th scope="row">{@code java.library.path}</th>
 *     <td>List of paths to search when loading libraries</td></tr>
-* <tr><th scope="row"><code>java.io.tmpdir</code></th>
+* <tr><th scope="row">{@code java.io.tmpdir}</th>
 *     <td>Default temp file path</td></tr>
-* <tr><th scope="row"><code>java.compiler</code></th>
+* <tr><th scope="row">{@code java.compiler}</th>
 *     <td>Name of JIT compiler to use</td></tr>
-* <tr><th scope="row"><code>os.name</code></th>
+* <tr><th scope="row">{@code os.name}</th>
 *     <td>Operating system name</td></tr>
-* <tr><th scope="row"><code>os.arch</code></th>
+* <tr><th scope="row">{@code os.arch}</th>
 *     <td>Operating system architecture</td></tr>
-* <tr><th scope="row"><code>os.version</code></th>
+* <tr><th scope="row">{@code os.version}</th>
 *     <td>Operating system version</td></tr>
-* <tr><th scope="row"><code>file.separator</code></th>
+* <tr><th scope="row">{@code file.separator}</th>
 *     <td>File separator ("/" on UNIX)</td></tr>
-* <tr><th scope="row"><code>path.separator</code></th>
+* <tr><th scope="row">{@code path.separator}</th>
 *     <td>Path separator (":" on UNIX)</td></tr>
-* <tr><th scope="row"><code>line.separator</code></th>
+* <tr><th scope="row">{@code line.separator}</th>
 *     <td>Line separator ("\n" on UNIX)</td></tr>
-* <tr><th scope="row"><code>user.name</code></th>
+* <tr><th scope="row">{@code user.name}</th>
 *     <td>User's account name</td></tr>
-* <tr><th scope="row"><code>user.home</code></th>
+* <tr><th scope="row">{@code user.home}</th>
 *     <td>User's home directory</td></tr>
-* <tr><th scope="row"><code>user.dir</code></th>
+* <tr><th scope="row">{@code user.dir}</th>
 *     <td>User's current working directory</td></tr>
 * </tbody>
 * </table>
 * <p>
 * Multiple paths in a system property value are separated by the path
 * separator character of the platform.
 * <p>
 * Note that even if the security manager does not permit the
-* <code>getProperties</code> operation, it may choose to permit the
+* {@code getProperties} operation, it may choose to permit the
 * {@link #getProperty(String)} operation.
 *
 * @implNote In addition to the standard system properties, the system
 * properties may include the following keys:
 * <table class="striped">
 *     <td>The main class name of the initial module</td></tr>
 * </tbody>
 * </table>
 *
 * @return     the system properties
-* @exception  SecurityException  if a security manager exists and its
+* @throws     SecurityException  if a security manager exists and its
-*             <code>checkPropertiesAccess</code> method doesn't allow access
+*             {@code checkPropertiesAccess} method doesn't allow access
-*              to the system properties.
+*             to the system properties.
 * @see        #setProperties
 * @see        java.lang.SecurityException
 * @see        java.lang.SecurityManager#checkPropertiesAccess()
 * @see        java.util.Properties
 */
 }
 private static String lineSeparator;
 /**
-* Sets the system properties to the <code>Properties</code>
+* Sets the system properties to the {@code Properties} argument.
-* argument.
+*
-* <p>
 * First, if there is a security manager, its
-* <code>checkPropertiesAccess</code> method is called with no
+* {@code checkPropertiesAccess} method is called with no
 * arguments. This may result in a security exception.
 * <p>
 * The argument becomes the current set of system properties for use
 * by the {@link #getProperty(String)} method. If the argument is
-* <code>null</code>, then the current set of system properties is
+* {@code null}, then the current set of system properties is
 * forgotten.
 *
 * @param      props   the new system properties.
-* @exception  SecurityException  if a security manager exists and its
+* @throws     SecurityException  if a security manager exists and its
-*             <code>checkPropertiesAccess</code> method doesn't allow access
+*             {@code checkPropertiesAccess} method doesn't allow access
-*              to the system properties.
+*             to the system properties.
 * @see        #getProperties
 * @see        java.util.Properties
 * @see        java.lang.SecurityException
 * @see        java.lang.SecurityManager#checkPropertiesAccess()
 */
 System.props = props;
 }
 /**
 * Gets the system property indicated by the specified key.
-* <p>
+*
 * First, if there is a security manager, its
-* <code>checkPropertyAccess</code> method is called with the key as
+* {@code checkPropertyAccess} method is called with the key as
 * its argument. This may result in a SecurityException.
 * <p>
 * If there is no current set of system properties, a set of system
 * properties is first created and initialized in the same manner as
-* for the <code>getProperties</code> method.
+* for the {@code getProperties} method.
 *
 * @param      key   the name of the system property.
 * @return     the string value of the system property,
-*             or <code>null</code> if there is no property with that key.
+*             or {@code null} if there is no property with that key.
 *
-* @exception  SecurityException  if a security manager exists and its
+* @throws     SecurityException  if a security manager exists and its
-*             <code>checkPropertyAccess</code> method doesn't allow
+*             {@code checkPropertyAccess} method doesn't allow
-*              access to the specified system property.
+*             access to the specified system property.
-* @exception  NullPointerException if <code>key</code> is
+* @throws     NullPointerException if {@code key} is {@code null}.
-*             <code>null</code>.
+* @throws     IllegalArgumentException if {@code key} is empty.
-* @exception  IllegalArgumentException if <code>key</code> is empty.
 * @see        #setProperty
 * @see        java.lang.SecurityException
 * @see        java.lang.SecurityManager#checkPropertyAccess(java.lang.String)
 * @see        java.lang.System#getProperties()
 */
 return props.getProperty(key);
 }
 /**
 * Gets the system property indicated by the specified key.
-* <p>
+*
 * First, if there is a security manager, its
-* <code>checkPropertyAccess</code> method is called with the
+* {@code checkPropertyAccess} method is called with the
-* <code>key</code> as its argument.
+* {@code key} as its argument.
 * <p>
 * If there is no current set of system properties, a set of system
 * properties is first created and initialized in the same manner as
-* for the <code>getProperties</code> method.
+* for the {@code getProperties} method.
 *
 * @param      key   the name of the system property.
 * @param      def   a default value.
 * @return     the string value of the system property,
 *             or the default value if there is no property with that key.
 *
-* @exception  SecurityException  if a security manager exists and its
+* @throws     SecurityException  if a security manager exists and its
-*             <code>checkPropertyAccess</code> method doesn't allow
+*             {@code checkPropertyAccess} method doesn't allow
 *             access to the specified system property.
-* @exception  NullPointerException if <code>key</code> is
+* @throws     NullPointerException if {@code key} is {@code null}.
-*             <code>null</code>.
+* @throws     IllegalArgumentException if {@code key} is empty.
-* @exception  IllegalArgumentException if <code>key</code> is empty.
 * @see        #setProperty
 * @see        java.lang.SecurityManager#checkPropertyAccess(java.lang.String)
 * @see        java.lang.System#getProperties()
 */
 public static String getProperty(String key, String def) {
 return props.getProperty(key, def);
 }
 /**
 * Sets the system property indicated by the specified key.
-* <p>
+*
 * First, if a security manager exists, its
-* <code>SecurityManager.checkPermission</code> method
+* {@code SecurityManager.checkPermission} method
-* is called with a <code>PropertyPermission(key, "write")</code>
+* is called with a {@code PropertyPermission(key, "write")}
 * permission. This may result in a SecurityException being thrown.
 * If no exception is thrown, the specified property is set to the given
 * value.
 *
 * @param      key   the name of the system property.
 * @param      value the value of the system property.
 * @return     the previous value of the system property,
-*             or <code>null</code> if it did not have one.
+*             or {@code null} if it did not have one.
 *
-* @exception  SecurityException  if a security manager exists and its
+* @throws     SecurityException  if a security manager exists and its
-*             <code>checkPermission</code> method doesn't allow
+*             {@code checkPermission} method doesn't allow
 *             setting of the specified property.
-* @exception  NullPointerException if <code>key</code> or
+* @throws     NullPointerException if {@code key} or
-*             <code>value</code> is <code>null</code>.
+*             {@code value} is {@code null}.
-* @exception  IllegalArgumentException if <code>key</code> is empty.
+* @throws     IllegalArgumentException if {@code key} is empty.
 * @see        #getProperty
 * @see        java.lang.System#getProperty(java.lang.String)
 * @see        java.lang.System#getProperty(java.lang.String, java.lang.String)
 * @see        java.util.PropertyPermission
 * @see        SecurityManager#checkPermission
 return (String) props.setProperty(key, value);
 }
 /**
 * Removes the system property indicated by the specified key.
-* <p>
+*
 * First, if a security manager exists, its
-* <code>SecurityManager.checkPermission</code> method
+* {@code SecurityManager.checkPermission} method
-* is called with a <code>PropertyPermission(key, "write")</code>
+* is called with a {@code PropertyPermission(key, "write")}
 * permission. This may result in a SecurityException being thrown.
 * If no exception is thrown, the specified property is removed.
 *
 * @param      key   the name of the system property to be removed.
 * @return     the previous string value of the system property,
-*             or <code>null</code> if there was no property with that key.
+*             or {@code null} if there was no property with that key.
 *
-* @exception  SecurityException  if a security manager exists and its
+* @throws     SecurityException  if a security manager exists and its
-*             <code>checkPropertyAccess</code> method doesn't allow
+*             {@code checkPropertyAccess} method doesn't allow
 *              access to the specified system property.
-* @exception  NullPointerException if <code>key</code> is
+* @throws     NullPointerException if {@code key} is {@code null}.
-*             <code>null</code>.
+* @throws     IllegalArgumentException if {@code key} is empty.
-* @exception  IllegalArgumentException if <code>key</code> is empty.
 * @see        #getProperty
 * @see        #setProperty
 * @see        java.util.Properties
 * @see        java.lang.SecurityException
 * @see        java.lang.SecurityManager#checkPropertiesAccess()
 * value.
 *
 * <p>If a security manager exists, its
 * {@link SecurityManager#checkPermission checkPermission}
 * method is called with a
-* <code>{@link RuntimePermission}("getenv."+name)</code>
+* {@code {@link RuntimePermission}("getenv."+name)}
 * permission.  This may result in a {@link SecurityException}
 * being thrown.  If no exception is thrown the value of the
-* variable <code>name</code> is returned.
+* variable {@code name} is returned.
 *
 * <p><a id="EnvironmentVSSystemProperties"><i>System
 * properties</i> and <i>environment variables</i></a> are both
 * conceptually mappings between names and values.  Both
 * mechanisms can be used to pass user-defined information to a
 * insensitivity, on different operating systems.  For these
 * reasons, environment variables are more likely to have
 * unintended side effects.  It is best to use system properties
 * where possible.  Environment variables should be used when a
 * global effect is desired, or when an external system interface
-* requires an environment variable (such as <code>PATH</code>).
+* requires an environment variable (such as {@code PATH}).
 *
-* <p>On UNIX systems the alphabetic case of <code>name</code> is
+* <p>On UNIX systems the alphabetic case of {@code name} is
 * typically significant, while on Microsoft Windows systems it is
 * typically not.  For example, the expression
-* <code>System.getenv("FOO").equals(System.getenv("foo"))</code>
+* {@code System.getenv("FOO").equals(System.getenv("foo"))}
 * is likely to be true on Microsoft Windows.
 *
 * @param  name the name of the environment variable
-* @return the string value of the variable, or <code>null</code>
+* @return the string value of the variable, or {@code null}
 *         if the variable is not defined in the system environment
-* @throws NullPointerException if <code>name</code> is <code>null</code>
+* @throws NullPointerException if {@code name} is {@code null}
 * @throws SecurityException
 *         if a security manager exists and its
 *         {@link SecurityManager#checkPermission checkPermission}
 *         method doesn't allow access to the environment variable
-*         <code>name</code>
+*         {@code name}
 * @see    #getenv()
 * @see    ProcessBuilder#environment()
 */
 public static String getenv(String name) {
 SecurityManager sm = getSecurityManager();
 * <p>The returned map is typically case-sensitive on all platforms.
 *
 * <p>If a security manager exists, its
 * {@link SecurityManager#checkPermission checkPermission}
 * method is called with a
-* <code>{@link RuntimePermission}("getenv.*")</code>
+* {@code {@link RuntimePermission}("getenv.*")} permission.
-* permission.  This may result in a {@link SecurityException} being
+* This may result in a {@link SecurityException} being thrown.
-* thrown.
 *
 * <p>When passing information to a Java subprocess,
 * <a href=#EnvironmentVSSystemProperties>system properties</a>
 * are generally preferred over environment variables.
 *
 /**
 * {@code System.Logger} instances log messages that will be
 * routed to the underlying logging framework the {@link System.LoggerFinder
 * LoggerFinder} uses.
-* <p>
+*
 * {@code System.Logger} instances are typically obtained from
 * the {@link java.lang.System System} class, by calling
 * {@link java.lang.System#getLogger(java.lang.String) System.getLogger(loggerName)}
 * or {@link java.lang.System#getLogger(java.lang.String, java.util.ResourceBundle)
 * System.getLogger(loggerName, bundle)}.
 * @see java.lang.System#getLogger(java.lang.String)
 * @see java.lang.System#getLogger(java.lang.String, java.util.ResourceBundle)
 * @see java.lang.System.LoggerFinder
 *
 * @since 9
-*
 */
 public interface Logger {
 /**
 * System {@linkplain Logger loggers} levels.
-* <p>
+*
 * A level has a {@linkplain #getName() name} and {@linkplain
 * #getSeverity() severity}.
 * Level values are {@link #ALL}, {@link #TRACE}, {@link #DEBUG},
 * {@link #INFO}, {@link #WARNING}, {@link #ERROR}, {@link #OFF},
 * by order of increasing severity.
 log(level, (ResourceBundle) null, msg, (Object[]) null);
 }
 /**
 * Logs a lazily supplied message.
-* <p>
+*
 * If the logger is currently enabled for the given log message level
 * then a message is logged that is the result produced by the
 * given supplier function.  Otherwise, the supplier is not operated on.
 *
 * @implSpec When logging is enabled for the given level, the default
 }
 }
 /**
 * Logs a message produced from the given object.
-* <p>
+*
 * If the logger is currently enabled for the given log message level then
 * a message is logged that, by default, is the result produced from
 * calling  toString on the given object.
 * Otherwise, the object is not operated on.
 *
 this.log(level, null, msg, thrown);
 }
 /**
 * Logs a lazily supplied message associated with a given throwable.
-* <p>
+*
 * If the logger is currently enabled for the given log message level
 * then a message is logged that is the result produced by the
 * given supplier function.  Otherwise, the supplier is not operated on.
 *
 * @implSpec When logging is enabled for the given level, the default
 this.log(level, null, format, params);
 }
 /**
 * Logs a localized message associated with a given throwable.
-* <p>
+*
 * If the given resource bundle is non-{@code null},  the {@code msg}
 * string is localized using the given resource bundle.
 * Otherwise the {@code msg} string is not localized.
 *
 * @param level the log message level.
 Throwable thrown);
 /**
 * Logs a message with resource bundle and an optional list of
 * parameters.
-* <p>
+*
 * If the given resource bundle is non-{@code null},  the {@code format}
 * string is localized using the given resource bundle.
 * Otherwise the {@code format} string is not localized.
 *
 * @param level the log message level.
 *
 * @throws NullPointerException if {@code level} is {@code null}.
 */
 public void log(Level level, ResourceBundle bundle, String format,
 Object... params);
 }
 /**
 * The {@code LoggerFinder} service is responsible for creating, managing,
 * and configuring loggers to the underlying framework it uses.
-* <p>
+*
 * A logger finder is a concrete implementation of this class that has a
 * zero-argument constructor and implements the abstract methods defined
 * by this class.
 * The loggers returned from a logger finder are capable of routing log
 * messages to the logging backend this provider supports.
 * this.getLogger(name, module)} to obtain a logger, then wraps that
 * logger in a {@link Logger} instance where all methods that do not
 * take a {@link ResourceBundle} as parameter are redirected to one
 * which does - passing the given {@code bundle} for
 * localization. So for instance, a call to {@link
-* Logger#log(Level, String) Logger.log(Level.INFO, msg)}
+* Logger#log(Logger.Level, String) Logger.log(Level.INFO, msg)}
 * will end up as a call to {@link
-* Logger#log(Level, ResourceBundle, String, Object...)
+* Logger#log(Logger.Level, ResourceBundle, String, Object...)
 * Logger.log(Level.INFO, bundle, msg, (Object[])null)} on the wrapped
 * logger instance.
 * Note however that by default, string messages returned by {@link
 * java.util.function.Supplier Supplier&lt;String&gt;} will not be
 * localized, as it is assumed that such strings are messages which are
 /**
 * Terminates the currently running Java Virtual Machine. The
 * argument serves as a status code; by convention, a nonzero status
 * code indicates abnormal termination.
 * <p>
-* This method calls the <code>exit</code> method in class
+* This method calls the {@code exit} method in class
-* <code>Runtime</code>. This method never returns normally.
+* {@code Runtime}. This method never returns normally.
 * <p>
-* The call <code>System.exit(n)</code> is effectively equivalent to
+* The call {@code System.exit(n)} is effectively equivalent to
 * the call:
 * <blockquote><pre>
 * Runtime.getRuntime().exit(n)
 * </pre></blockquote>
 *
 * @param      status   exit status.
 * @throws  SecurityException
-*        if a security manager exists and its <code>checkExit</code>
+*        if a security manager exists and its {@code checkExit}
 *        method doesn't allow exit with the specified status.
 * @see        java.lang.Runtime#exit(int)
 */
 public static void exit(int status) {
 Runtime.getRuntime().exit(status);
 }
 /**
 * Runs the garbage collector.
-* <p>
+*
-* Calling the <code>gc</code> method suggests that the Java Virtual
+* Calling the {@code gc} method suggests that the Java Virtual
 * Machine expend effort toward recycling unused objects in order to
 * make the memory they currently occupy available for quick reuse.
 * When control returns from the method call, the Java Virtual
 * Machine has made a best effort to reclaim space from all discarded
 * objects.
 * <p>
-* The call <code>System.gc()</code> is effectively equivalent to the
+* The call {@code System.gc()} is effectively equivalent to the
 * call:
 * <blockquote><pre>
 * Runtime.getRuntime().gc()
 * </pre></blockquote>
 *
 Runtime.getRuntime().gc();
 }
 /**
 * Runs the finalization methods of any objects pending finalization.
-* <p>
+*
 * Calling this method suggests that the Java Virtual Machine expend
-* effort toward running the <code>finalize</code> methods of objects
+* effort toward running the {@code finalize} methods of objects
-* that have been found to be discarded but whose <code>finalize</code>
+* that have been found to be discarded but whose {@code finalize}
 * methods have not yet been run. When control returns from the
 * method call, the Java Virtual Machine has made a best effort to
 * complete all outstanding finalizations.
 * <p>
-* The call <code>System.runFinalization()</code> is effectively
+* The call {@code System.runFinalization()} is effectively
 * equivalent to the call:
 * <blockquote><pre>
 * Runtime.getRuntime().runFinalization()
 * </pre></blockquote>
 *
 *
 * Otherwise, the filename argument is mapped to a native library image in
 * an implementation-dependent manner.
 *
 * <p>
-* The call <code>System.load(name)</code> is effectively equivalent
+* The call {@code System.load(name)} is effectively equivalent
 * to the call:
 * <blockquote><pre>
 * Runtime.getRuntime().load(name)
 * </pre></blockquote>
 *
 * @param      filename   the file to load.
-* @exception  SecurityException  if a security manager exists and its
+* @throws     SecurityException  if a security manager exists and its
-*             <code>checkLink</code> method doesn't allow
+*             {@code checkLink} method doesn't allow
 *             loading of the specified dynamic library
-* @exception  UnsatisfiedLinkError  if either the filename is not an
+* @throws     UnsatisfiedLinkError  if either the filename is not an
 *             absolute path name, the native library is not statically
 *             linked with the VM, or the library cannot be mapped to
 *             a native library image by the host system.
-* @exception  NullPointerException if <code>filename</code> is
+* @throws     NullPointerException if {@code filename} is {@code null}
-*             <code>null</code>
 * @see        java.lang.Runtime#load(java.lang.String)
 * @see        java.lang.SecurityManager#checkLink(java.lang.String)
 */
 @CallerSensitive
 public static void load(String filename) {
 Runtime.getRuntime().load0(Reflection.getCallerClass(), filename);
 }
 /**
-* Loads the native library specified by the <code>libname</code>
+* Loads the native library specified by the {@code libname}
-* argument.  The <code>libname</code> argument must not contain any platform
+* argument.  The {@code libname} argument must not contain any platform
 * specific prefix, file extension or path. If a native library
-* called <code>libname</code> is statically linked with the VM, then the
+* called {@code libname} is statically linked with the VM, then the
-* JNI_OnLoad_<code>libname</code> function exported by the library is invoked.
+* JNI_OnLoad_{@code libname} function exported by the library is invoked.
 * See the <a href="{@docRoot}/../specs/jni/index.html"> JNI Specification</a>
 * for more details.
 *
 * Otherwise, the libname argument is loaded from a system library
 * location and mapped to a native library image in an implementation-
 * dependent manner.
 * <p>
-* The call <code>System.loadLibrary(name)</code> is effectively
+* The call {@code System.loadLibrary(name)} is effectively
 * equivalent to the call
 * <blockquote><pre>
 * Runtime.getRuntime().loadLibrary(name)
 * </pre></blockquote>
 *
 * @param      libname   the name of the library.
-* @exception  SecurityException  if a security manager exists and its
+* @throws     SecurityException  if a security manager exists and its
-*             <code>checkLink</code> method doesn't allow
+*             {@code checkLink} method doesn't allow
 *             loading of the specified dynamic library
-* @exception  UnsatisfiedLinkError if either the libname argument
+* @throws     UnsatisfiedLinkError if either the libname argument
 *             contains a file path, the native library is not statically
 *             linked with the VM,  or the library cannot be mapped to a
 *             native library image by the host system.
-* @exception  NullPointerException if <code>libname</code> is
+* @throws     NullPointerException if {@code libname} is {@code null}
-*             <code>null</code>
 * @see        java.lang.Runtime#loadLibrary(java.lang.String)
 * @see        java.lang.SecurityManager#checkLink(java.lang.String)
 */
 @CallerSensitive
 public static void loadLibrary(String libname) {
 * Maps a library name into a platform-specific string representing
 * a native library.
 *
 * @param      libname the name of the library.
 * @return     a platform-dependent native library name.
-* @exception  NullPointerException if <code>libname</code> is
+* @throws     NullPointerException if {@code libname} is {@code null}
-*             <code>null</code>
 * @see        java.lang.System#loadLibrary(java.lang.String)
 * @see        java.lang.ClassLoader#findLibrary(java.lang.String)
 * @since      1.2
 */
 public static native String mapLibraryName(String libname);

changeset 49203	3a225d9cabe1
parent 49001	ce06058197a4
child 50531	aeb7fb702890