Java example source code file (Hang.java)

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Java - Java tags/keywords

exception, hang, illegalstateexception, net, network

The Hang.java Java example source code

/*
 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/**
 * @test
 * @bug 7012768
 * @compile -XDignore.symbol.file=true ThrowingNameService.java
 *          ThrowingNameServiceDescriptor.java
 * @run main/othervm/timeout=30 -Dsun.net.spi.nameservice.provider.1=throwing,sun Hang
 * @summary InetAddress lookupTable leaks/deadlocks when using unsupported
 *          name service spi
 */

import java.net.InetAddress;

public class Hang {
    public static void main(String[] args) throws Exception {
        try {
            // 1st attempt - IllegalStateException caught below
            InetAddress.getByName("host.company.com");
        } catch (IllegalStateException e) { }

        // 2nd attempt - Stuck here forever if bug exists
        InetAddress.getByName("host.company.com");
    }
}