Java Code Examples for sun.misc.ThreadGroupUtils#getRootThreadGroup()
The following examples show how to use
sun.misc.ThreadGroupUtils#getRootThreadGroup() .
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Example 1
Source File: AWTAutoShutdown.java From dragonwell8_jdk with GNU General Public License v2.0 | 5 votes |
/** * Creates and starts a new blocker thread. Doesn't return until * the new blocker thread starts. * * Must be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION} */ private void activateBlockerThread() { Thread thread = new Thread(ThreadGroupUtils.getRootThreadGroup(), this, "AWT-Shutdown"); thread.setContextClassLoader(null); thread.setDaemon(false); blockerThread = thread; thread.start(); try { /* Wait for the blocker thread to start. */ mainLock.wait(); } catch (InterruptedException e) { System.err.println("AWT blocker activation interrupted:"); e.printStackTrace(); } }
Example 2
Source File: AWTAutoShutdown.java From TencentKona-8 with GNU General Public License v2.0 | 5 votes |
/** * Creates and starts a new blocker thread. Doesn't return until * the new blocker thread starts. * * Must be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION} */ private void activateBlockerThread() { Thread thread = new Thread(ThreadGroupUtils.getRootThreadGroup(), this, "AWT-Shutdown"); thread.setContextClassLoader(null); thread.setDaemon(false); blockerThread = thread; thread.start(); try { /* Wait for the blocker thread to start. */ mainLock.wait(); } catch (InterruptedException e) { System.err.println("AWT blocker activation interrupted:"); e.printStackTrace(); } }
Example 3
Source File: AWTAutoShutdown.java From jdk8u-dev-jdk with GNU General Public License v2.0 | 5 votes |
/** * Creates and starts a new blocker thread. Doesn't return until * the new blocker thread starts. * * Must be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION} */ private void activateBlockerThread() { Thread thread = new Thread(ThreadGroupUtils.getRootThreadGroup(), this, "AWT-Shutdown"); thread.setContextClassLoader(null); thread.setDaemon(false); blockerThread = thread; thread.start(); try { /* Wait for the blocker thread to start. */ mainLock.wait(); } catch (InterruptedException e) { System.err.println("AWT blocker activation interrupted:"); e.printStackTrace(); } }
Example 4
Source File: AWTAutoShutdown.java From jdk8u60 with GNU General Public License v2.0 | 5 votes |
/** * Creates and starts a new blocker thread. Doesn't return until * the new blocker thread starts. * * Must be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION} */ private void activateBlockerThread() { Thread thread = new Thread(ThreadGroupUtils.getRootThreadGroup(), this, "AWT-Shutdown"); thread.setContextClassLoader(null); thread.setDaemon(false); blockerThread = thread; thread.start(); try { /* Wait for the blocker thread to start. */ mainLock.wait(); } catch (InterruptedException e) { System.err.println("AWT blocker activation interrupted:"); e.printStackTrace(); } }
Example 5
Source File: AWTAutoShutdown.java From openjdk-jdk8u with GNU General Public License v2.0 | 5 votes |
/** * Creates and starts a new blocker thread. Doesn't return until * the new blocker thread starts. * * Must be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION} */ private void activateBlockerThread() { Thread thread = new Thread(ThreadGroupUtils.getRootThreadGroup(), this, "AWT-Shutdown"); thread.setContextClassLoader(null); thread.setDaemon(false); blockerThread = thread; thread.start(); try { /* Wait for the blocker thread to start. */ mainLock.wait(); } catch (InterruptedException e) { System.err.println("AWT blocker activation interrupted:"); e.printStackTrace(); } }
Example 6
Source File: AWTAutoShutdown.java From jdk8u-jdk with GNU General Public License v2.0 | 5 votes |
/** * Creates and starts a new blocker thread. Doesn't return until * the new blocker thread starts. * * Must be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION} */ private void activateBlockerThread() { Thread thread = new Thread(ThreadGroupUtils.getRootThreadGroup(), this, "AWT-Shutdown"); thread.setContextClassLoader(null); thread.setDaemon(false); blockerThread = thread; thread.start(); try { /* Wait for the blocker thread to start. */ mainLock.wait(); } catch (InterruptedException e) { System.err.println("AWT blocker activation interrupted:"); e.printStackTrace(); } }
Example 7
Source File: AWTAutoShutdown.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 5 votes |
/** * Creates and starts a new blocker thread. Doesn't return until * the new blocker thread starts. * * Must be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION} */ private void activateBlockerThread() { Thread thread = new Thread(ThreadGroupUtils.getRootThreadGroup(), this, "AWT-Shutdown"); thread.setContextClassLoader(null); thread.setDaemon(false); blockerThread = thread; thread.start(); try { /* Wait for the blocker thread to start. */ mainLock.wait(); } catch (InterruptedException e) { System.err.println("AWT blocker activation interrupted:"); e.printStackTrace(); } }
Example 8
Source File: AWTAutoShutdown.java From jdk8u-jdk with GNU General Public License v2.0 | 5 votes |
/** * Creates and starts a new blocker thread. Doesn't return until * the new blocker thread starts. * * Must be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION} */ private void activateBlockerThread() { Thread thread = new Thread(ThreadGroupUtils.getRootThreadGroup(), this, "AWT-Shutdown"); thread.setContextClassLoader(null); thread.setDaemon(false); blockerThread = thread; thread.start(); try { /* Wait for the blocker thread to start. */ mainLock.wait(); } catch (InterruptedException e) { System.err.println("AWT blocker activation interrupted:"); e.printStackTrace(); } }
Example 9
Source File: AWTAutoShutdown.java From jdk8u_jdk with GNU General Public License v2.0 | 5 votes |
/** * Creates and starts a new blocker thread. Doesn't return until * the new blocker thread starts. * * Must be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION} */ private void activateBlockerThread() { Thread thread = new Thread(ThreadGroupUtils.getRootThreadGroup(), this, "AWT-Shutdown"); thread.setContextClassLoader(null); thread.setDaemon(false); blockerThread = thread; thread.start(); try { /* Wait for the blocker thread to start. */ mainLock.wait(); } catch (InterruptedException e) { System.err.println("AWT blocker activation interrupted:"); e.printStackTrace(); } }
Example 10
Source File: AWTAutoShutdown.java From hottub with GNU General Public License v2.0 | 5 votes |
/** * Creates and starts a new blocker thread. Doesn't return until * the new blocker thread starts. * * Must be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION} */ private void activateBlockerThread() { Thread thread = new Thread(ThreadGroupUtils.getRootThreadGroup(), this, "AWT-Shutdown"); thread.setContextClassLoader(null); thread.setDaemon(false); blockerThread = thread; thread.start(); try { /* Wait for the blocker thread to start. */ mainLock.wait(); } catch (InterruptedException e) { System.err.println("AWT blocker activation interrupted:"); e.printStackTrace(); } }
Example 11
Source File: X11GraphicsDevice.java From jdk8u-dev-jdk with GNU General Public License v2.0 | 4 votes |
@Override public synchronized void setDisplayMode(DisplayMode dm) { if (!isDisplayChangeSupported()) { super.setDisplayMode(dm); return; } Window w = getFullScreenWindow(); if (w == null) { throw new IllegalStateException("Must be in fullscreen mode " + "in order to set display mode"); } if (getDisplayMode().equals(dm)) { return; } if (dm == null || (dm = getMatchingDisplayMode(dm)) == null) { throw new IllegalArgumentException("Invalid display mode"); } if (!shutdownHookRegistered) { // register a shutdown hook so that we return to the // original DisplayMode when the VM exits (if the application // is already in the original DisplayMode at that time, this // hook will have no effect) shutdownHookRegistered = true; PrivilegedAction<Void> a = () -> { ThreadGroup rootTG = ThreadGroupUtils.getRootThreadGroup(); Runnable r = () -> { Window old = getFullScreenWindow(); if (old != null) { exitFullScreenExclusive(old); setDisplayMode(origDisplayMode); } }; Thread t = new Thread(rootTG, r,"Display-Change-Shutdown-Thread-"+screen); t.setContextClassLoader(null); Runtime.getRuntime().addShutdownHook(t); return null; }; AccessController.doPrivileged(a); } // switch to the new DisplayMode configDisplayMode(screen, dm.getWidth(), dm.getHeight(), dm.getRefreshRate()); // update bounds of the fullscreen window w.setBounds(0, 0, dm.getWidth(), dm.getHeight()); // configDisplayMode() is synchronous, so the display change will be // complete by the time we get here (and it is therefore safe to call // displayChanged() now) ((X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment()).displayChanged(); }
Example 12
Source File: X11GraphicsDevice.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
@Override public synchronized void setDisplayMode(DisplayMode dm) { if (!isDisplayChangeSupported()) { super.setDisplayMode(dm); return; } Window w = getFullScreenWindow(); if (w == null) { throw new IllegalStateException("Must be in fullscreen mode " + "in order to set display mode"); } if (getDisplayMode().equals(dm)) { return; } if (dm == null || (dm = getMatchingDisplayMode(dm)) == null) { throw new IllegalArgumentException("Invalid display mode"); } if (!shutdownHookRegistered) { // register a shutdown hook so that we return to the // original DisplayMode when the VM exits (if the application // is already in the original DisplayMode at that time, this // hook will have no effect) shutdownHookRegistered = true; PrivilegedAction<Void> a = () -> { ThreadGroup rootTG = ThreadGroupUtils.getRootThreadGroup(); Runnable r = () -> { Window old = getFullScreenWindow(); if (old != null) { exitFullScreenExclusive(old); setDisplayMode(origDisplayMode); } }; Thread t = new Thread(rootTG, r,"Display-Change-Shutdown-Thread-"+screen); t.setContextClassLoader(null); Runtime.getRuntime().addShutdownHook(t); return null; }; AccessController.doPrivileged(a); } // switch to the new DisplayMode configDisplayMode(screen, dm.getWidth(), dm.getHeight(), dm.getRefreshRate()); // update bounds of the fullscreen window w.setBounds(0, 0, dm.getWidth(), dm.getHeight()); // configDisplayMode() is synchronous, so the display change will be // complete by the time we get here (and it is therefore safe to call // displayChanged() now) ((X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment()).displayChanged(); }
Example 13
Source File: X11GraphicsDevice.java From jdk8u_jdk with GNU General Public License v2.0 | 4 votes |
@Override public synchronized void setDisplayMode(DisplayMode dm) { if (!isDisplayChangeSupported()) { super.setDisplayMode(dm); return; } Window w = getFullScreenWindow(); if (w == null) { throw new IllegalStateException("Must be in fullscreen mode " + "in order to set display mode"); } if (getDisplayMode().equals(dm)) { return; } if (dm == null || (dm = getMatchingDisplayMode(dm)) == null) { throw new IllegalArgumentException("Invalid display mode"); } if (!shutdownHookRegistered) { // register a shutdown hook so that we return to the // original DisplayMode when the VM exits (if the application // is already in the original DisplayMode at that time, this // hook will have no effect) shutdownHookRegistered = true; PrivilegedAction<Void> a = () -> { ThreadGroup rootTG = ThreadGroupUtils.getRootThreadGroup(); Runnable r = () -> { Window old = getFullScreenWindow(); if (old != null) { exitFullScreenExclusive(old); if (isDisplayChangeSupported()) { setDisplayMode(origDisplayMode); } } }; Thread t = new Thread(rootTG, r,"Display-Change-Shutdown-Thread-"+screen); t.setContextClassLoader(null); Runtime.getRuntime().addShutdownHook(t); return null; }; AccessController.doPrivileged(a); } // switch to the new DisplayMode configDisplayMode(screen, dm.getWidth(), dm.getHeight(), dm.getRefreshRate()); // update bounds of the fullscreen window w.setBounds(0, 0, dm.getWidth(), dm.getHeight()); // configDisplayMode() is synchronous, so the display change will be // complete by the time we get here (and it is therefore safe to call // displayChanged() now) ((X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment()).displayChanged(); }
Example 14
Source File: X11GraphicsDevice.java From hottub with GNU General Public License v2.0 | 4 votes |
@Override public synchronized void setDisplayMode(DisplayMode dm) { if (!isDisplayChangeSupported()) { super.setDisplayMode(dm); return; } Window w = getFullScreenWindow(); if (w == null) { throw new IllegalStateException("Must be in fullscreen mode " + "in order to set display mode"); } if (getDisplayMode().equals(dm)) { return; } if (dm == null || (dm = getMatchingDisplayMode(dm)) == null) { throw new IllegalArgumentException("Invalid display mode"); } if (!shutdownHookRegistered) { // register a shutdown hook so that we return to the // original DisplayMode when the VM exits (if the application // is already in the original DisplayMode at that time, this // hook will have no effect) shutdownHookRegistered = true; PrivilegedAction<Void> a = () -> { ThreadGroup rootTG = ThreadGroupUtils.getRootThreadGroup(); Runnable r = () -> { Window old = getFullScreenWindow(); if (old != null) { exitFullScreenExclusive(old); if (isDisplayChangeSupported()) { setDisplayMode(origDisplayMode); } } }; Thread t = new Thread(rootTG, r,"Display-Change-Shutdown-Thread-"+screen); t.setContextClassLoader(null); Runtime.getRuntime().addShutdownHook(t); return null; }; AccessController.doPrivileged(a); } // switch to the new DisplayMode configDisplayMode(screen, dm.getWidth(), dm.getHeight(), dm.getRefreshRate()); // update bounds of the fullscreen window w.setBounds(0, 0, dm.getWidth(), dm.getHeight()); // configDisplayMode() is synchronous, so the display change will be // complete by the time we get here (and it is therefore safe to call // displayChanged() now) ((X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment()).displayChanged(); }
Example 15
Source File: X11GraphicsDevice.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
@Override public synchronized void setDisplayMode(DisplayMode dm) { if (!isDisplayChangeSupported()) { super.setDisplayMode(dm); return; } Window w = getFullScreenWindow(); if (w == null) { throw new IllegalStateException("Must be in fullscreen mode " + "in order to set display mode"); } if (getDisplayMode().equals(dm)) { return; } if (dm == null || (dm = getMatchingDisplayMode(dm)) == null) { throw new IllegalArgumentException("Invalid display mode"); } if (!shutdownHookRegistered) { // register a shutdown hook so that we return to the // original DisplayMode when the VM exits (if the application // is already in the original DisplayMode at that time, this // hook will have no effect) shutdownHookRegistered = true; PrivilegedAction<Void> a = () -> { ThreadGroup rootTG = ThreadGroupUtils.getRootThreadGroup(); Runnable r = () -> { Window old = getFullScreenWindow(); if (old != null) { exitFullScreenExclusive(old); if (isDisplayChangeSupported()) { setDisplayMode(origDisplayMode); } } }; Thread t = new Thread(rootTG, r,"Display-Change-Shutdown-Thread-"+screen); t.setContextClassLoader(null); Runtime.getRuntime().addShutdownHook(t); return null; }; AccessController.doPrivileged(a); } // switch to the new DisplayMode configDisplayMode(screen, dm.getWidth(), dm.getHeight(), dm.getRefreshRate()); // update bounds of the fullscreen window w.setBounds(0, 0, dm.getWidth(), dm.getHeight()); // configDisplayMode() is synchronous, so the display change will be // complete by the time we get here (and it is therefore safe to call // displayChanged() now) ((X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment()).displayChanged(); }
Example 16
Source File: X11GraphicsDevice.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 4 votes |
@Override public synchronized void setDisplayMode(DisplayMode dm) { if (!isDisplayChangeSupported()) { super.setDisplayMode(dm); return; } Window w = getFullScreenWindow(); if (w == null) { throw new IllegalStateException("Must be in fullscreen mode " + "in order to set display mode"); } if (getDisplayMode().equals(dm)) { return; } if (dm == null || (dm = getMatchingDisplayMode(dm)) == null) { throw new IllegalArgumentException("Invalid display mode"); } if (!shutdownHookRegistered) { // register a shutdown hook so that we return to the // original DisplayMode when the VM exits (if the application // is already in the original DisplayMode at that time, this // hook will have no effect) shutdownHookRegistered = true; PrivilegedAction<Void> a = () -> { ThreadGroup rootTG = ThreadGroupUtils.getRootThreadGroup(); Runnable r = () -> { Window old = getFullScreenWindow(); if (old != null) { exitFullScreenExclusive(old); if (isDisplayChangeSupported()) { setDisplayMode(origDisplayMode); } } }; Thread t = new Thread(rootTG, r,"Display-Change-Shutdown-Thread-"+screen); t.setContextClassLoader(null); Runtime.getRuntime().addShutdownHook(t); return null; }; AccessController.doPrivileged(a); } // switch to the new DisplayMode configDisplayMode(screen, dm.getWidth(), dm.getHeight(), dm.getRefreshRate()); // update bounds of the fullscreen window w.setBounds(0, 0, dm.getWidth(), dm.getHeight()); // configDisplayMode() is synchronous, so the display change will be // complete by the time we get here (and it is therefore safe to call // displayChanged() now) ((X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment()).displayChanged(); }
Example 17
Source File: X11GraphicsDevice.java From openjdk-jdk8u with GNU General Public License v2.0 | 4 votes |
@Override public synchronized void setDisplayMode(DisplayMode dm) { if (!isDisplayChangeSupported()) { super.setDisplayMode(dm); return; } Window w = getFullScreenWindow(); if (w == null) { throw new IllegalStateException("Must be in fullscreen mode " + "in order to set display mode"); } if (getDisplayMode().equals(dm)) { return; } if (dm == null || (dm = getMatchingDisplayMode(dm)) == null) { throw new IllegalArgumentException("Invalid display mode"); } if (!shutdownHookRegistered) { // register a shutdown hook so that we return to the // original DisplayMode when the VM exits (if the application // is already in the original DisplayMode at that time, this // hook will have no effect) shutdownHookRegistered = true; PrivilegedAction<Void> a = () -> { ThreadGroup rootTG = ThreadGroupUtils.getRootThreadGroup(); Runnable r = () -> { Window old = getFullScreenWindow(); if (old != null) { exitFullScreenExclusive(old); if (isDisplayChangeSupported()) { setDisplayMode(origDisplayMode); } } }; Thread t = new Thread(rootTG, r,"Display-Change-Shutdown-Thread-"+screen); t.setContextClassLoader(null); Runtime.getRuntime().addShutdownHook(t); return null; }; AccessController.doPrivileged(a); } // switch to the new DisplayMode configDisplayMode(screen, dm.getWidth(), dm.getHeight(), dm.getRefreshRate()); // update bounds of the fullscreen window w.setBounds(0, 0, dm.getWidth(), dm.getHeight()); // configDisplayMode() is synchronous, so the display change will be // complete by the time we get here (and it is therefore safe to call // displayChanged() now) ((X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment()).displayChanged(); }
Example 18
Source File: X11GraphicsDevice.java From jdk8u60 with GNU General Public License v2.0 | 4 votes |
@Override public synchronized void setDisplayMode(DisplayMode dm) { if (!isDisplayChangeSupported()) { super.setDisplayMode(dm); return; } Window w = getFullScreenWindow(); if (w == null) { throw new IllegalStateException("Must be in fullscreen mode " + "in order to set display mode"); } if (getDisplayMode().equals(dm)) { return; } if (dm == null || (dm = getMatchingDisplayMode(dm)) == null) { throw new IllegalArgumentException("Invalid display mode"); } if (!shutdownHookRegistered) { // register a shutdown hook so that we return to the // original DisplayMode when the VM exits (if the application // is already in the original DisplayMode at that time, this // hook will have no effect) shutdownHookRegistered = true; PrivilegedAction<Void> a = () -> { ThreadGroup rootTG = ThreadGroupUtils.getRootThreadGroup(); Runnable r = () -> { Window old = getFullScreenWindow(); if (old != null) { exitFullScreenExclusive(old); if (isDisplayChangeSupported()) { setDisplayMode(origDisplayMode); } } }; Thread t = new Thread(rootTG, r,"Display-Change-Shutdown-Thread-"+screen); t.setContextClassLoader(null); Runtime.getRuntime().addShutdownHook(t); return null; }; AccessController.doPrivileged(a); } // switch to the new DisplayMode configDisplayMode(screen, dm.getWidth(), dm.getHeight(), dm.getRefreshRate()); // update bounds of the fullscreen window w.setBounds(0, 0, dm.getWidth(), dm.getHeight()); // configDisplayMode() is synchronous, so the display change will be // complete by the time we get here (and it is therefore safe to call // displayChanged() now) ((X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment()).displayChanged(); }
Example 19
Source File: X11GraphicsDevice.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
@Override public synchronized void setDisplayMode(DisplayMode dm) { if (!isDisplayChangeSupported()) { super.setDisplayMode(dm); return; } Window w = getFullScreenWindow(); if (w == null) { throw new IllegalStateException("Must be in fullscreen mode " + "in order to set display mode"); } if (getDisplayMode().equals(dm)) { return; } if (dm == null || (dm = getMatchingDisplayMode(dm)) == null) { throw new IllegalArgumentException("Invalid display mode"); } if (!shutdownHookRegistered) { // register a shutdown hook so that we return to the // original DisplayMode when the VM exits (if the application // is already in the original DisplayMode at that time, this // hook will have no effect) shutdownHookRegistered = true; PrivilegedAction<Void> a = () -> { ThreadGroup rootTG = ThreadGroupUtils.getRootThreadGroup(); Runnable r = () -> { Window old = getFullScreenWindow(); if (old != null) { exitFullScreenExclusive(old); if (isDisplayChangeSupported()) { setDisplayMode(origDisplayMode); } } }; Thread t = new Thread(rootTG, r,"Display-Change-Shutdown-Thread-"+screen); t.setContextClassLoader(null); Runtime.getRuntime().addShutdownHook(t); return null; }; AccessController.doPrivileged(a); } // switch to the new DisplayMode configDisplayMode(screen, dm.getWidth(), dm.getHeight(), dm.getRefreshRate()); // update bounds of the fullscreen window w.setBounds(0, 0, dm.getWidth(), dm.getHeight()); // configDisplayMode() is synchronous, so the display change will be // complete by the time we get here (and it is therefore safe to call // displayChanged() now) ((X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment()).displayChanged(); }
Example 20
Source File: X11GraphicsDevice.java From dragonwell8_jdk with GNU General Public License v2.0 | 4 votes |
@Override public synchronized void setDisplayMode(DisplayMode dm) { if (!isDisplayChangeSupported()) { super.setDisplayMode(dm); return; } Window w = getFullScreenWindow(); if (w == null) { throw new IllegalStateException("Must be in fullscreen mode " + "in order to set display mode"); } if (getDisplayMode().equals(dm)) { return; } if (dm == null || (dm = getMatchingDisplayMode(dm)) == null) { throw new IllegalArgumentException("Invalid display mode"); } if (!shutdownHookRegistered) { // register a shutdown hook so that we return to the // original DisplayMode when the VM exits (if the application // is already in the original DisplayMode at that time, this // hook will have no effect) shutdownHookRegistered = true; PrivilegedAction<Void> a = () -> { ThreadGroup rootTG = ThreadGroupUtils.getRootThreadGroup(); Runnable r = () -> { Window old = getFullScreenWindow(); if (old != null) { exitFullScreenExclusive(old); if (isDisplayChangeSupported()) { setDisplayMode(origDisplayMode); } } }; Thread t = new Thread(rootTG, r,"Display-Change-Shutdown-Thread-"+screen); t.setContextClassLoader(null); Runtime.getRuntime().addShutdownHook(t); return null; }; AccessController.doPrivileged(a); } // switch to the new DisplayMode configDisplayMode(screen, dm.getWidth(), dm.getHeight(), dm.getRefreshRate()); // update bounds of the fullscreen window w.setBounds(0, 0, dm.getWidth(), dm.getHeight()); // configDisplayMode() is synchronous, so the display change will be // complete by the time we get here (and it is therefore safe to call // displayChanged() now) ((X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment()).displayChanged(); }