627 * <td>File separator ("/" on UNIX)</td></tr>
628 * <tr><td><code>path.separator</code></td>
629 * <td>Path separator (":" on UNIX)</td></tr>
630 * <tr><td><code>line.separator</code></td>
631 * <td>Line separator ("\n" on UNIX)</td></tr>
632 * <tr><td><code>user.name</code></td>
633 * <td>User's account name</td></tr>
634 * <tr><td><code>user.home</code></td>
635 * <td>User's home directory</td></tr>
636 * <tr><td><code>user.dir</code></td>
637 * <td>User's current working directory</td></tr>
638 * </table>
639 * <p>
640 * Multiple paths in a system property value are separated by the path
641 * separator character of the platform.
642 * <p>
643 * Note that even if the security manager does not permit the
644 * <code>getProperties</code> operation, it may choose to permit the
645 * {@link #getProperty(String)} operation.
646 *
647 * @implNote In addition to the standard system properties, the {@code
648 * java} launcher may create the Java Virtual Machine with system
649 * properties that have the following keys:
650 * <table summary="Shows property keys and associated values">
651 * <tr><th>Key</th>
652 * <th>Description of Associated Value</th></tr>
653 * <tr><td>{@code jdk.module.path}</td>
654 * <td>Application module path</td></tr>
655 * <tr><td>{@code jdk.upgrade.module.path}</td>
656 * <td>The upgrade module path</td></tr>
657 * <tr><td>{@code jdk.module.main}</td>
658 * <td>The module name of the initial/main module</td></tr>
659 * <tr><td>{@code jdk.module.main.class}</td>
660 * <td>The main class name of the initial module</td></tr>
661 * </table>
662 * These properties may also be set by custom launchers that use the JNI
663 * invocation API to create the Java Virtual Machine.
664 *
665 * @return the system properties
666 * @exception SecurityException if a security manager exists and its
667 * <code>checkPropertiesAccess</code> method doesn't allow access
668 * to the system properties.
669 * @see #setProperties
670 * @see java.lang.SecurityException
671 * @see java.lang.SecurityManager#checkPropertiesAccess()
672 * @see java.util.Properties
673 */
674 public static Properties getProperties() {
675 SecurityManager sm = getSecurityManager();
676 if (sm != null) {
677 sm.checkPropertiesAccess();
678 }
679
680 return props;
681 }
682
683 /**
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627 * <td>File separator ("/" on UNIX)</td></tr>
628 * <tr><td><code>path.separator</code></td>
629 * <td>Path separator (":" on UNIX)</td></tr>
630 * <tr><td><code>line.separator</code></td>
631 * <td>Line separator ("\n" on UNIX)</td></tr>
632 * <tr><td><code>user.name</code></td>
633 * <td>User's account name</td></tr>
634 * <tr><td><code>user.home</code></td>
635 * <td>User's home directory</td></tr>
636 * <tr><td><code>user.dir</code></td>
637 * <td>User's current working directory</td></tr>
638 * </table>
639 * <p>
640 * Multiple paths in a system property value are separated by the path
641 * separator character of the platform.
642 * <p>
643 * Note that even if the security manager does not permit the
644 * <code>getProperties</code> operation, it may choose to permit the
645 * {@link #getProperty(String)} operation.
646 *
647 * @implNote In addition to the standard system properties, the system
648 * properties may include the following keys:
649 * <table summary="Shows property keys and associated values">
650 * <tr><th>Key</th>
651 * <th>Description of Associated Value</th></tr>
652 * <tr><td>{@code jdk.module.path}</td>
653 * <td>The application module path</td></tr>
654 * <tr><td>{@code jdk.module.upgrade.path}</td>
655 * <td>The upgrade module path</td></tr>
656 * <tr><td>{@code jdk.module.main}</td>
657 * <td>The module name of the initial/main module</td></tr>
658 * <tr><td>{@code jdk.module.main.class}</td>
659 * <td>The main class name of the initial module</td></tr>
660 * </table>
661 *
662 * @return the system properties
663 * @exception SecurityException if a security manager exists and its
664 * <code>checkPropertiesAccess</code> method doesn't allow access
665 * to the system properties.
666 * @see #setProperties
667 * @see java.lang.SecurityException
668 * @see java.lang.SecurityManager#checkPropertiesAccess()
669 * @see java.util.Properties
670 */
671 public static Properties getProperties() {
672 SecurityManager sm = getSecurityManager();
673 if (sm != null) {
674 sm.checkPropertiesAccess();
675 }
676
677 return props;
678 }
679
680 /**
|