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/*
 * @test
 *
 * @summary converted from VM Testbase nsk/jvmti/SetEventCallbacks/setevntcallb003.
 * VM Testbase keywords: [quick, jpda, jvmti, onload_only_logic, noras]
 * VM Testbase readme:
 * DESCRIPTION
 *     This JVMTI test exercises JVMTI thread function SetEventCallbacks().
 *     This test checks that if SetEventCallbacks() is invoked with
 *     zero size of callbacks structure, then no events will be sent
 *     and no callbacks will be invoked.
 *     In Agent_OnLoad() the test sets event callbacks for VM_INIT
 *     and enables it.
 *     In VM_INIT callback the test sets callbacks structure with
 *     THREAD_START and THREAD_END events, but passes zero for
 *     structure size, and enables these events.
 *     The debuggee class starts and ends trivial thread to generate
 *     tested events. After thread completed, the test checks if no event
 *     callbacks were actually invoked.
 *     If callbacks for THREAD_START and THREAD_END events were not invoked,
 *     the test passes with exit status 95.
 *     If callback for VM_INIT event was not invoked or other error occur,
 *     the test fails with exit status 97.
 * COMMENTS
 *
 * @library /vmTestbase
 *          /test/lib
 * @run driver jdk.test.lib.FileInstaller . .
 * @run main/othervm/native
 *      -agentlib:setevntcallb003=-waittime=5
 *      nsk.jvmti.SetEventCallbacks.setevntcallb003
 */