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/*

 * @test

 *

 * @summary converted from VM Testbase nsk/jdwp/ThreadReference/Suspend/suspend001.

 * VM Testbase keywords: [quick, jpda, jdwp]

 * VM Testbase readme:

 * DESCRIPTION

 *     This test performs checking for

 *         command set: ThreadReference

 *         command: Suspend

 *     Test checks that debugee accept the command packet and

 *     replies with correct reply packet. Also test checks that

 *     thread becomes suspended status.

 *     Test consists of two compoments:

 *         debugger: suspend001

 *         debuggee: suspend001a

 *     First, debugger uses nsk.share support classes to launch debuggee

 *     and obtain Transport object, that represents JDWP transport channel.

 *     Also communication channel (IOPipe) is established between

 *     debugger and debuggee to exchange with synchronization signals.

 *     Next, debugger obtains from debuggee classID for tested thread class

 *     and threadID as the value of a class static field. Debugger checks

 *     that thread has not suspended status before sending tested command.

 *     Then, debugger creates command packet for ThreadReference.Suspend

 *     command with the found threadID as an argument, writes packet to

 *     the transport channel, and waits for a reply packet.

 *     When reply packet is received, debugger parses the packet structure

 *     and ensures there is no data into the package. Also debugger queries

 *     debuggee for suspend status of the tested thread and chacks that thread

 *     has status suspended.

 *     Finally, debugger resumes suspended thread into debuggee, sends debuggee

 *     signal to quit, waits for it exits and exits too with the proper exit code.

 *

 * @library /vmTestbase /test/hotspot/jtreg/vmTestbase

 *          /test/lib

 * @run driver jdk.test.lib.FileInstaller . .

 * @build nsk.jdwp.ThreadReference.Suspend.suspend001

 *        nsk.jdwp.ThreadReference.Suspend.suspend001a

 * @run main/othervm PropertyResolvingWrapper

 *      nsk.jdwp.ThreadReference.Suspend.suspend001

 *      -arch=${os.family}-${os.simpleArch}

 *      -verbose

 *      -waittime=5

 *      -debugee.vmkind=java

 *      -transport.address=dynamic

 *      -debugee.vmkeys="${test.vm.opts} ${test.java.opts}"

 */