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| <h2 title="Class LegacyJava" class="title">Class LegacyJava</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
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| <ul class="inheritance"> |
| <li>javax.jdo.LegacyJava</li> |
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| </li> |
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| <pre>public class <span class="typeNameLabel">LegacyJava</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">This class provides wrapper implementations for the Java SecurityManager and AccessController classes |
| that were deprecated in Java 17/18. |
| <p> |
| For pre-17 this class provides access to the expected SecurityManager and AccessController. |
| For 17+ the getSecurityManager() will always return 'null' and the doPrivileged() methods will simply execute |
| the lambda argument without any security checks. |
| <p> |
| Solution for AccessControl: This class uses reflection to detect whether AccessControl is deprecated. |
| If it is deprecated we provide dummy implementation of 'doPrivileged'. If it is not deprecated we use the |
| original implementation. |
| Implementations are used by finding the desired methods and store them in a static field in LegacyJava. |
| Whenever we need to call a method we can use reflection again to call the stored method in LegacyJava. |
| <p> |
| Please note that the call to the stored method needs to happen from the original calling class. We cannot provide |
| such a generic doPrivileged() in LegacyJava because it would be accessible from other classes and thus |
| allow *any* caller to execute *any* code with doPrivileged() with the security context of LegacyJava. For the same |
| reason the doPrivileged() implementations in the calling classes must be *private*.</div> |
| </li> |
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| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../javax/jdo/LegacyJava.SecurityManager.html" title="class in javax.jdo">LegacyJava.SecurityManager</a></span></code> |
| <div class="block">The SecurityManager is only instantiated if it is not deprecated/removed in the Java API.</div> |
| </td> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Method.html?is-external=true" title="class or interface in java.lang.reflect">Method</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../javax/jdo/LegacyJava.html#doPrivilegedAction">doPrivilegedAction</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Method.html?is-external=true" title="class or interface in java.lang.reflect">Method</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../javax/jdo/LegacyJava.html#doPrivilegedExceptionAction">doPrivilegedExceptionAction</a></span></code> </td> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../javax/jdo/LegacyJava.html#LegacyJava--">LegacyJava</a></span>()</code> </td> |
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| <tr> |
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| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static <T> T</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../javax/jdo/LegacyJava.html#doPrivileged-java.security.PrivilegedAction-">doPrivileged</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/security/PrivilegedAction.html?is-external=true" title="class or interface in java.security">PrivilegedAction</a><T> privilegedAction)</code> |
| <div class="block">This is a replacement for the old Java AccessControl.doPrivileged().</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <T> T</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../javax/jdo/LegacyJava.html#doPrivileged-java.security.PrivilegedExceptionAction-">doPrivileged</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/security/PrivilegedExceptionAction.html?is-external=true" title="class or interface in java.security">PrivilegedExceptionAction</a><T> privilegedAction)</code> |
| <div class="block">This is a replacement for the old Java AccessControl.doPrivileged().</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../javax/jdo/LegacyJava.SecurityManager.html" title="class in javax.jdo">LegacyJava.SecurityManager</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../javax/jdo/LegacyJava.html#getSecurityManager--">getSecurityManager</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../javax/jdo/LegacyJava.html#isSecurityManagerDeprecated--">isSecurityManagerDeprecated</a></span>()</code> </td> |
| </tr> |
| </table> |
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| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
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| <a name="doPrivilegedAction"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>doPrivilegedAction</h4> |
| <pre>public static final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Method.html?is-external=true" title="class or interface in java.lang.reflect">Method</a> doPrivilegedAction</pre> |
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| <h4>doPrivilegedExceptionAction</h4> |
| <pre>public static final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Method.html?is-external=true" title="class or interface in java.lang.reflect">Method</a> doPrivilegedExceptionAction</pre> |
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| <h4>LegacyJava</h4> |
| <pre>public LegacyJava()</pre> |
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| <h4>getSecurityManager</h4> |
| <pre>public static <a href="../../javax/jdo/LegacyJava.SecurityManager.html" title="class in javax.jdo">LegacyJava.SecurityManager</a> getSecurityManager()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A wrapper around the java SecurityManager or 'null' if no SecurityManager is available or if it |
| is deprecated (Java 17 and later).</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isSecurityManagerDeprecated--"> |
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| <h4>isSecurityManagerDeprecated</h4> |
| <pre>public static boolean isSecurityManagerDeprecated()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>'true' if the security manager is deprecated or does not exist.</dd> |
| </dl> |
| </li> |
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| <a name="doPrivileged-java.security.PrivilegedAction-"> |
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| <h4>doPrivileged</h4> |
| <pre>public static <T> T doPrivileged(<a href="https://docs.oracle.com/javase/8/docs/api/java/security/PrivilegedAction.html?is-external=true" title="class or interface in java.security">PrivilegedAction</a><T> privilegedAction)</pre> |
| <div class="block">This is a replacement for the old Java AccessControl.doPrivileged(). This replacement is used when the |
| old doPrivileged() is deprecated or not available. |
| This replacement simply execute the action without any further checks.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - Return type.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>privilegedAction</code> - The action to execute.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Return value of the action.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <!-- --> |
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| <h4>doPrivileged</h4> |
| <pre>public static <T> T doPrivileged(<a href="https://docs.oracle.com/javase/8/docs/api/java/security/PrivilegedExceptionAction.html?is-external=true" title="class or interface in java.security">PrivilegedExceptionAction</a><T> privilegedAction) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/security/PrivilegedActionException.html?is-external=true" title="class or interface in java.security">PrivilegedActionException</a></pre> |
| <div class="block">This is a replacement for the old Java AccessControl.doPrivileged(). This replacement is used when the |
| old doPrivileged() is deprecated or not available. |
| This replacement simply execute the action without any further checks.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - Return type.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>privilegedAction</code> - The action to execute.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Return value of the action.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/security/PrivilegedActionException.html?is-external=true" title="class or interface in java.security">PrivilegedActionException</a></code> - Never thrown.</dd> |
| </dl> |
| </li> |
| </ul> |
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