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8267521: Post JEP 411 refactoring: maximum covering > 50K

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Reviewed-by: dfuchs, prr
This commit is contained in:
Weijun Wang 2021-06-02 15:48:50 +00:00
parent 40d23a0c0b
commit 508cec7535
18 changed files with 205 additions and 104 deletions
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13
src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
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@ -178,7 +178,6 @@ import java.util.concurrent.locks.Condition;
* @since 1.7
* @author Doug Lea
*/
@SuppressWarnings("removal")
public class ForkJoinPool extends AbstractExecutorService {
/*
@ -751,11 +750,13 @@ public class ForkJoinPool extends AbstractExecutorService {
* permission to modify threads.
*/
private static void checkPermission() {
@SuppressWarnings("removal")
SecurityManager security = System.getSecurityManager();
if (security != null)
security.checkPermission(modifyThreadPermission);
}
@SuppressWarnings("removal")
static AccessControlContext contextWithPermissions(Permission ... perms) {
Permissions permissions = new Permissions();
for (Permission perm : perms)
@ -799,9 +800,11 @@ public class ForkJoinPool extends AbstractExecutorService {
static final class DefaultForkJoinWorkerThreadFactory
implements ForkJoinWorkerThreadFactory {
// ACC for access to the factory
@SuppressWarnings("removal")
private static final AccessControlContext ACC = contextWithPermissions(
new RuntimePermission("getClassLoader"),
new RuntimePermission("setContextClassLoader"));
@SuppressWarnings("removal")
public final ForkJoinWorkerThread newThread(ForkJoinPool pool) {
return AccessController.doPrivileged(
new PrivilegedAction<>() {
@ -821,6 +824,7 @@ public class ForkJoinPool extends AbstractExecutorService {
*/
static final class DefaultCommonPoolForkJoinWorkerThreadFactory
implements ForkJoinWorkerThreadFactory {
@SuppressWarnings("removal")
private static final AccessControlContext ACC = contextWithPermissions(
modifyThreadPermission,
new RuntimePermission("enableContextClassLoaderOverride"),
@ -828,6 +832,7 @@ public class ForkJoinPool extends AbstractExecutorService {
new RuntimePermission("getClassLoader"),
new RuntimePermission("setContextClassLoader"));
@SuppressWarnings("removal")
public final ForkJoinWorkerThread newThread(ForkJoinPool pool) {
return AccessController.doPrivileged(
new PrivilegedAction<>() {
@ -1253,11 +1258,13 @@ public class ForkJoinPool extends AbstractExecutorService {
// misc
/** AccessControlContext for innocuous workers, created on 1st use. */
@SuppressWarnings("removal")
private static AccessControlContext INNOCUOUS_ACC;
/**
* Initializes (upon registration) InnocuousForkJoinWorkerThreads.
*/
@SuppressWarnings("removal")
final void initializeInnocuousWorker() {
AccessControlContext acc; // racy construction OK
if ((acc = INNOCUOUS_ACC) == null)
@ -3497,9 +3504,11 @@ public class ForkJoinPool extends AbstractExecutorService {
defaultForkJoinWorkerThreadFactory =
new DefaultForkJoinWorkerThreadFactory();
modifyThreadPermission = new RuntimePermission("modifyThread");
common = AccessController.doPrivileged(new PrivilegedAction<>() {
@SuppressWarnings("removal")
ForkJoinPool tmp = AccessController.doPrivileged(new PrivilegedAction<>() {
public ForkJoinPool run() {
return new ForkJoinPool((byte)0); }});
common = tmp;
COMMON_PARALLELISM = Math.max(common.mode & SMASK, 1);
}