[
https://issues.apache.org/jira/browse/HADOOP-19212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18015320#comment-18015320
]
ASF GitHub Bot commented on HADOOP-19212:
-----------------------------------------
pan3793 commented on code in PR #7886:
URL: https://github.com/apache/hadoop/pull/7886#discussion_r2289946280
##########
hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/util/SubjectUtil.java:
##########
@@ -0,0 +1,232 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.util;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
+import java.lang.reflect.UndeclaredThrowableException;
+import java.security.PrivilegedAction;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+import java.util.concurrent.Callable;
+import java.util.concurrent.CompletionException;
+
+import javax.security.auth.Subject;
+
+import org.apache.hadoop.classification.InterfaceAudience.Private;
+
+@Private
+public class SubjectUtil {
+ private static MethodHandle CALL_AS;
+ private static MethodHandle CURRENT;
+
+ static {
+ MethodHandles.Lookup lookup = MethodHandles.lookup();
+ try {
+ try {
+ // Subject.doAs() is deprecated for removal and replaced by
Subject.callAs().
+ // Lookup first the new API, since for Java versions where both exist,
the
+ // new API delegates to the old API (e.g. Java 18, 19 and 20).
+ // Otherwise (e.g. Java 17), lookup the old API.
+ CALL_AS = lookup.findStatic(Subject.class, "callAs",
+ MethodType.methodType(Object.class, Subject.class,
Callable.class));
+ } catch (NoSuchMethodException x) {
+ try {
+ // Lookup the old API.
+ MethodType oldSignature = MethodType.methodType(
+ Object.class, Subject.class, PrivilegedExceptionAction.class);
+ MethodHandle doAs = lookup.findStatic(Subject.class, "doAs",
oldSignature);
+ // Convert the Callable used in the new API to the PrivilegedAction
used
+ // in the old API.
+ MethodType convertSignature = MethodType.methodType(
+ PrivilegedExceptionAction.class, Callable.class);
+ MethodHandle converter = lookup.findStatic(
+ SubjectUtil.class, "callableToPrivilegedExceptionAction",
convertSignature);
+ CALL_AS = MethodHandles.filterArguments(doAs, 1, converter);
+ } catch (NoSuchMethodException e) {
+ throw new AssertionError(e);
Review Comment:
thanks for suggestion, adopted
> [JDK23] org.apache.hadoop.security.UserGroupInformation use of Subject needs
> to move to replacement APIs
> --------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-19212
> URL: https://issues.apache.org/jira/browse/HADOOP-19212
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: security
> Affects Versions: 3.5.0
> Reporter: Alan Bateman
> Priority: Major
> Labels: pull-request-available
>
> `javax.security.auth.Subject.getSubject` and `Subject.doAs` were deprecated
> for removal in JDK 17. The replacement APIs are `Subject.current` and
> `callAs`. See [JEP 411]([https://openjdk.org/jeps/411]) for background.
> The `Subject.getSubject` API has been "degraded" in JDK 23 to throw
> `UnsupportedOperationException` if not running with the option to allow a
> SecurityManager. In a future JDK release, the `Subject.getSubject` API will
> be degraded further to throw`UnsupportedOperationException` unconditionally.
> [renaissance/issues/439]([https://github.com/renaissance-benchmarks/renaissance/issues/439])
> is a failure with a Spark benchmark due to the code in
> `org.apache.hadoop.security.UserGroupInformation` using the deprecated
> `Subject.getSubject` method. The maintainers of this code need to migrate
> this code to the replacement APIs to ensure that this code will continue to
> work once the security manager feature is removed.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
