testDefaultThreadFactoryInheritsThreadGroupFromSecurityManager() — netty Function Reference

Source Code

common/src/test/java/io/netty/util/concurrent/DefaultThreadFactoryTest.java lines 147–185

    @Test
    @Timeout(value = 2000, unit = TimeUnit.MILLISECONDS)
    public void testDefaultThreadFactoryInheritsThreadGroupFromSecurityManager() throws InterruptedException {
        final SecurityManager current = System.getSecurityManager();

        boolean securityManagerSet = false;
        try {
            final ThreadGroup sticky = new ThreadGroup("sticky");
            try {
                System.setSecurityManager(new SecurityManager() {
                    @Override
                    public ThreadGroup getThreadGroup() {
                        return sticky;
                    }

                    // so we can restore the security manager at the end of the test
                    @Override
                    public void checkPermission(Permission perm) {
                    }
                });
            } catch (UnsupportedOperationException e) {
                Assumptions.assumeFalse(true, "Setting SecurityManager not supported");
            }
            securityManagerSet = true;

            runStickyThreadGroupTest(
                    new Callable<DefaultThreadFactory>() {
                        @Override
                        public DefaultThreadFactory call() throws Exception {
                            return new DefaultThreadFactory("test");
                        }
                    },
                    sticky);
        } finally {
            if (securityManagerSet) {
                System.setSecurityManager(current);
            }
        }
    }