test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/jni_interception/JI01/ji01t001/ji01t001.c - platform/libcore - Git at Google

 /*
  * Copyright (c) 2003, 2018, 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.
  */

 #include <stdio.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>

 #include <jvmti.h>
 #include "agent_common.h"

 #include "JVMTITools.h"
 #include "jvmti_tools.h"
 #include "nsk_tools.h"

 /* ====================================================================== */

 static const char *classSig =
     "Lnsk/jvmti/scenarios/jni_interception/JI01/ji01t001;";

 static jvmtiEnv *jvmti = NULL;
 static jrawMonitorID eventLock;
 static jvmtiEventCallbacks callbacks;
 static jint result = NSK_STATUS_PASSED;

 /* the original JNI function table */
 static jniNativeInterface *orig_jni_functions = NULL;

 /* the redirected JNI function table */
 static jniNativeInterface *redir_jni_functions = NULL;

 /* number of the redirected JNI function calls */
 static volatile int fnd_calls = 0;

 /* ====================================================================== */
 /** redirected JNI functions **/
 jclass JNICALL MyFindClass(JNIEnv *env, const char *name) {
     if (isThreadExpected(jvmti, NULL)) {
         fnd_calls++;

         NSK_DISPLAY1("MyFindClass: the function was called successfully: number of calls so far =  %d\n", fnd_calls);
     }

     return orig_jni_functions->FindClass(env, name);
 }

 /* ====================================================================== */
 static int getVMPhase(jvmtiEnv *jvmti) {
     jvmtiPhase phase;

     if (!NSK_JVMTI_VERIFY(
             NSK_CPP_STUB2(
                 GetPhase
                 , jvmti
                 , &phase
                 )
             )
        )
         exit(NSK_STATUS_FAILED);

     return phase;
 }

 /* ====================================================================== */
 static void doRedirect(jvmtiEnv *jvmti, int phase) {
     jvmtiError err;
     NSK_DISPLAY0("doRedirect: obtaining the JNI function table ...\n");

     // Store original function table
     if (!NSK_VERIFY(
                 (err = NSK_CPP_STUB2(
                     GetJNIFunctionTable
                     , jvmti
                     , &orig_jni_functions
                     )) == JVMTI_ERROR_NONE || phase != JVMTI_PHASE_LIVE
             )
        )
     {
         NSK_COMPLAIN2("TEST FAILED: failed to get original JNI function table during %s: %s\n"
                      , TranslatePhase(phase)
                      , TranslateError(err)
                      );

         result = NSK_STATUS_FAILED;
         exit(NSK_STATUS_FAILED);
     }
     else {
         NSK_DISPLAY3("CHECK PASSED: the original JNI function table %s during %s phase: %s\n"
                     , (err == JVMTI_ERROR_NONE) ? "has been obtained" : "hasn't been obtained"
                     , TranslatePhase(phase)
                     , TranslateError(err)
                     );
     }

     // Get a duplicate of the function table for future modification
     if (!NSK_VERIFY(
             (err = NSK_CPP_STUB2(
                 GetJNIFunctionTable
                 , jvmti
                 , &redir_jni_functions
                 )) == JVMTI_ERROR_NONE || phase != JVMTI_PHASE_LIVE
             )
        )
     {
         NSK_COMPLAIN2("TEST FAILED: failed to get JNI function table for interception during %s: %s\n"
                      , TranslatePhase(phase)
                      , TranslateError(err)
                      );

         result = NSK_STATUS_FAILED;
         exit(NSK_STATUS_FAILED);
     }
     else {
         NSK_DISPLAY3("CHECK PASSED: the original JNI function table for interception %s during %s phase: %s\n"
                     , (err == JVMTI_ERROR_NONE) ? "has been obtained" : "hasn't been obtained"
                     , TranslatePhase(phase)
                     , TranslateError(err)
                     );
     }

     // Redefine desired JNI functions
     if (phase == JVMTI_PHASE_LIVE) {
         NSK_DISPLAY0("doRedirect: overwriting the function FindClass; ...\n");
         redir_jni_functions->FindClass = MyFindClass;
     }

     // Set new JNI function table
     if (!NSK_VERIFY(
             (err = NSK_CPP_STUB2(
                 SetJNIFunctionTable
                 , jvmti
                 , redir_jni_functions
                 )) == JVMTI_ERROR_NONE || phase != JVMTI_PHASE_LIVE
             )
        )
     {
         NSK_COMPLAIN2("TEST FAILED: failed to set redirected JNI function table during %s: %s\n"
                      , TranslatePhase(phase)
                      , TranslateError(err)
                      );

         result = NSK_STATUS_FAILED;
         exit(NSK_STATUS_FAILED);
     }
     else {
         NSK_DISPLAY3("CHECK PASSED: the redirected JNI function table %s during %s phase: %s\n"
                     , (err == JVMTI_ERROR_NONE) ? "has been set" : "hasn't been set"
                     , TranslatePhase(phase)
                     , TranslateError(err)
                     );
     }
 }

 /* ====================================================================== */
 static void doRestore(jvmtiEnv *jvmti) {
     NSK_DISPLAY0("doRestore: restoring the original JNI function table ...\n");

     // Set new JNI function table
     if (!NSK_JVMTI_VERIFY(
             NSK_CPP_STUB2(
                 SetJNIFunctionTable
                 , jvmti
                 , orig_jni_functions
                 )
             )
        )
     {
         NSK_COMPLAIN0("TEST FAILED: failed to restore original JNI function table\n");

         result = NSK_STATUS_FAILED;
         exit(NSK_STATUS_FAILED);
     }

     NSK_DISPLAY0("doRestore: the original JNI function table is restored successfully\n");
 }

 /* ====================================================================== */
 static void lock(jvmtiEnv *jvmti) {
     if (!NSK_JVMTI_VERIFY(
             NSK_CPP_STUB2(
                 RawMonitorEnter
                 , jvmti
                 , eventLock
                 )
             )
        )
     {
         result = NSK_STATUS_FAILED;
         exit(NSK_STATUS_FAILED);
     }
 }

 /* ====================================================================== */
 static void unlock(jvmtiEnv *jvmti) {
     if (!NSK_JVMTI_VERIFY(
             NSK_CPP_STUB2(
                 RawMonitorExit
                 , jvmti
                 , eventLock
                 )
             )
        )
     {
         result = NSK_STATUS_FAILED;
         exit(NSK_STATUS_FAILED);
     }
 }

 /* ====================================================================== */
 static void checkCall(JNIEnv *env
                      , int step
                      , const char *callBackFunc
                      , const char *msg
                      , int exFndCalls
                      )
 {
     jclass cls;

     NSK_TRACE(
         (cls = NSK_CPP_STUB2(
                 FindClass
                 , env
                 , classSig
                 ))
         );

     NSK_TRACE(
         NSK_CPP_STUB1(ExceptionClear, env)
         );

     // The check should pass if the actual number of invocations is not less that the expected number (fnd_calls >= exFndCalls).
     // If the invocation is not expected (exFndCalls == 0), fnd_calls should be also == 0.
     if ((exFndCalls > 0 && fnd_calls >= exFndCalls) || (fnd_calls == exFndCalls)) {
             NSK_DISPLAY5("CHECK PASSED: %s: the %s JNI function FindClass() has been %s during %s phase\n\t%d intercepted call(s) as expected\n"
                         , callBackFunc
                         , (step==1) ? "tested" : "original"
                         , (step==1) ? "redirected" : "restored"
                         , msg
                         , fnd_calls
                         );

             if (fnd_calls != exFndCalls) {
                 NSK_COMPLAIN2("WARNING: the number of occured calls (%d) exceeds the expected number of calls (%d).\n"
                              , fnd_calls
                              , exFndCalls
                              );
             }
     } else {
         result = NSK_STATUS_FAILED;

         NSK_COMPLAIN6("TEST FAILED: %s: the %s JNI function FindClass() has not been %s during %s phase\n\t%d intercepted call(s) instead of %d as expected\n"
                      , callBackFunc
                      , (step==1) ? "tested" : "original"
                      , (step==1) ? "redirected" : "restored"
                      , msg
                      , fnd_calls
                      , exFndCalls
                      );
     }
 }

 /* ====================================================================== */
 // callback functions
 void JNICALL
 VMInit(jvmtiEnv *jvmti, JNIEnv *env, jthread thread) {
     jvmtiPhase phase = getVMPhase(jvmti);

     NSK_TRACE(lock(jvmti));

     NSK_DISPLAY1("b) VMInit: the current phase of VM execution %s\n"
                 , TranslatePhase(phase)
                 );

     // check JNI function table interception
     fnd_calls = 0;
     NSK_TRACE(doRedirect(jvmti, phase));
     NSK_TRACE(checkCall(env, 1, "VMInit", TranslatePhase(phase), 1));

     // check restored JNI function table
     fnd_calls = 0;
     NSK_TRACE(doRestore(jvmti));
     NSK_TRACE(checkCall(env, 2, "VMInit", TranslatePhase(phase), 0));

     NSK_TRACE(unlock(jvmti));
 }

 /* ====================================================================== */
 void JNICALL
 VMDeath(jvmtiEnv *jvmti, JNIEnv *env) {
     jvmtiPhase phase = getVMPhase(jvmti);

     NSK_TRACE(lock(jvmti));

     NSK_DISPLAY1("c) VMDeath: the current phase of VM execution %s\n"
                 , TranslatePhase(phase)
                 );

     // check JNI function table interception
     fnd_calls = 0;
     NSK_TRACE(doRedirect(jvmti, phase));
     NSK_TRACE(checkCall(env, 1, "VMDeath", TranslatePhase(phase), 1));

     // check restored JNI function table
     fnd_calls = 0;
     NSK_TRACE(doRestore(jvmti));
     NSK_TRACE(checkCall(env, 2, "VMDeath", TranslatePhase(phase), 0));

     (void) memset(&callbacks, 0, sizeof(callbacks));

     if (!NSK_JVMTI_VERIFY(
             NSK_CPP_STUB3(
                 SetEventCallbacks
                 , jvmti
                 , &callbacks
                 , sizeof(callbacks)
                 )
             )
        )
         result = NSK_STATUS_FAILED;

     NSK_TRACE(unlock(jvmti));

     if (result == NSK_STATUS_FAILED) {
         exit(NSK_STATUS_FAILED);
     }
 }

 /* ====================================================================== */
 JNIEXPORT jint JNICALL
 Java_nsk_jvmti_scenarios_jni_1interception_JI01_ji01t001_check(JNIEnv *env, jobject obj) {
     return result;
 }

 /* ====================================================================== */
 #ifdef STATIC_BUILD
 JNIEXPORT jint JNICALL Agent_OnLoad_ji01t001(JavaVM *jvm, char *options, void *reserved) {
     return Agent_Initialize(jvm, options, reserved);
 }
 JNIEXPORT jint JNICALL Agent_OnAttach_ji01t001(JavaVM *jvm, char *options, void *reserved) {
     return Agent_Initialize(jvm, options, reserved);
 }
 JNIEXPORT jint JNI_OnLoad_ji01t001(JavaVM *jvm, char *options, void *reserved) {
     return JNI_VERSION_1_8;
 }
 #endif
 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
     if (!NSK_VERIFY(
                 nsk_jvmti_parseOptions(options)
                 )
        )
         return JNI_ERR;


     if (!NSK_VERIFY(
             NSK_CPP_STUB3(
                 GetEnv
                 , jvm
                 , (void **) &jvmti
                 , JVMTI_VERSION_1_1
                 ) == JNI_OK
             && jvmti != NULL
             )
        )
         return JNI_ERR;


     if (!NSK_JVMTI_VERIFY(
             NSK_CPP_STUB3(
                 CreateRawMonitor
                 , jvmti
                 , "_event_lock"
                 , &eventLock
                 )
             )
        )
         return JNI_ERR;

     NSK_DISPLAY1("a) Trying to intercept JNI functions during %s phase ...\n"
                 , TranslatePhase(getVMPhase(jvmti))
                 );

     NSK_TRACE(doRedirect(jvmti, getVMPhase(jvmti)));

     NSK_DISPLAY0("Setting event callbacks...\n");

     (void) memset(&callbacks, 0, sizeof(callbacks));
     callbacks.VMInit = &VMInit;
     callbacks.VMDeath = &VMDeath;

     if (!NSK_JVMTI_VERIFY(
             NSK_CPP_STUB3(
                 SetEventCallbacks
                 , jvmti
                 , &callbacks
                 , sizeof(callbacks)
                 )
             )
        )
         return JNI_ERR;


     NSK_DISPLAY0("Event callbacks are set\nEnabling events...\n");

     if (!NSK_JVMTI_VERIFY(
             NSK_CPP_STUB4(
                 SetEventNotificationMode
                 , jvmti
                 , JVMTI_ENABLE
                 , JVMTI_EVENT_VM_INIT
                 , NULL
                 )
             )
        )
         return JNI_ERR;


     if (!NSK_JVMTI_VERIFY(
             NSK_CPP_STUB4(
                 SetEventNotificationMode
                 , jvmti
                 , JVMTI_ENABLE
                 , JVMTI_EVENT_VM_DEATH
                 , NULL
                 )
             )
        )
         return JNI_ERR;

     NSK_DISPLAY0("Events are enabled\n");

     return JNI_OK;
 }
	/*
	* Copyright (c) 2003, 2018, 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.
	*/

	#include <stdio.h>
	#include <stdarg.h>
	#include <stdlib.h>
	#include <string.h>

	#include <jvmti.h>
	#include "agent_common.h"

	#include "JVMTITools.h"
	#include "jvmti_tools.h"
	#include "nsk_tools.h"

	/* ====================================================================== */

	static const char *classSig =
	"Lnsk/jvmti/scenarios/jni_interception/JI01/ji01t001;";

	static jvmtiEnv *jvmti = NULL;
	static jrawMonitorID eventLock;
	static jvmtiEventCallbacks callbacks;
	static jint result = NSK_STATUS_PASSED;

	/* the original JNI function table */
	static jniNativeInterface *orig_jni_functions = NULL;

	/* the redirected JNI function table */
	static jniNativeInterface *redir_jni_functions = NULL;

	/* number of the redirected JNI function calls */
	static volatile int fnd_calls = 0;

	/* ====================================================================== */
	/ redirected JNI functions /
	jclass JNICALL MyFindClass(JNIEnv env, const char name) {
	if (isThreadExpected(jvmti, NULL)) {
	fnd_calls++;

	NSK_DISPLAY1("MyFindClass: the function was called successfully: number of calls so far = %d\n", fnd_calls);
	}

	return orig_jni_functions->FindClass(env, name);
	}

	/* ====================================================================== */
	static int getVMPhase(jvmtiEnv *jvmti) {
	jvmtiPhase phase;

	if (!NSK_JVMTI_VERIFY(
	NSK_CPP_STUB2(
	GetPhase
	, jvmti
	, &phase
	)
	)
	)
	exit(NSK_STATUS_FAILED);

	return phase;
	}

	/* ====================================================================== */
	static void doRedirect(jvmtiEnv *jvmti, int phase) {
	jvmtiError err;
	NSK_DISPLAY0("doRedirect: obtaining the JNI function table ...\n");

	// Store original function table
	if (!NSK_VERIFY(
	(err = NSK_CPP_STUB2(
	GetJNIFunctionTable
	, jvmti
	, &orig_jni_functions
	)) == JVMTI_ERROR_NONE \|\| phase != JVMTI_PHASE_LIVE
	)
	)
	{
	NSK_COMPLAIN2("TEST FAILED: failed to get original JNI function table during %s: %s\n"
	, TranslatePhase(phase)
	, TranslateError(err)
	);

	result = NSK_STATUS_FAILED;
	exit(NSK_STATUS_FAILED);
	}
	else {
	NSK_DISPLAY3("CHECK PASSED: the original JNI function table %s during %s phase: %s\n"
	, (err == JVMTI_ERROR_NONE) ? "has been obtained" : "hasn't been obtained"
	, TranslatePhase(phase)
	, TranslateError(err)
	);
	}

	// Get a duplicate of the function table for future modification
	if (!NSK_VERIFY(
	(err = NSK_CPP_STUB2(
	GetJNIFunctionTable
	, jvmti
	, &redir_jni_functions
	)) == JVMTI_ERROR_NONE \|\| phase != JVMTI_PHASE_LIVE
	)
	)
	{
	NSK_COMPLAIN2("TEST FAILED: failed to get JNI function table for interception during %s: %s\n"
	, TranslatePhase(phase)
	, TranslateError(err)
	);

	result = NSK_STATUS_FAILED;
	exit(NSK_STATUS_FAILED);
	}
	else {
	NSK_DISPLAY3("CHECK PASSED: the original JNI function table for interception %s during %s phase: %s\n"
	, (err == JVMTI_ERROR_NONE) ? "has been obtained" : "hasn't been obtained"
	, TranslatePhase(phase)
	, TranslateError(err)
	);
	}

	// Redefine desired JNI functions
	if (phase == JVMTI_PHASE_LIVE) {
	NSK_DISPLAY0("doRedirect: overwriting the function FindClass; ...\n");
	redir_jni_functions->FindClass = MyFindClass;
	}

	// Set new JNI function table
	if (!NSK_VERIFY(
	(err = NSK_CPP_STUB2(
	SetJNIFunctionTable
	, jvmti
	, redir_jni_functions
	)) == JVMTI_ERROR_NONE \|\| phase != JVMTI_PHASE_LIVE
	)
	)
	{
	NSK_COMPLAIN2("TEST FAILED: failed to set redirected JNI function table during %s: %s\n"
	, TranslatePhase(phase)
	, TranslateError(err)
	);

	result = NSK_STATUS_FAILED;
	exit(NSK_STATUS_FAILED);
	}
	else {
	NSK_DISPLAY3("CHECK PASSED: the redirected JNI function table %s during %s phase: %s\n"
	, (err == JVMTI_ERROR_NONE) ? "has been set" : "hasn't been set"
	, TranslatePhase(phase)
	, TranslateError(err)
	);
	}
	}

	/* ====================================================================== */
	static void doRestore(jvmtiEnv *jvmti) {
	NSK_DISPLAY0("doRestore: restoring the original JNI function table ...\n");

	// Set new JNI function table
	if (!NSK_JVMTI_VERIFY(
	NSK_CPP_STUB2(
	SetJNIFunctionTable
	, jvmti
	, orig_jni_functions
	)
	)
	)
	{
	NSK_COMPLAIN0("TEST FAILED: failed to restore original JNI function table\n");

	result = NSK_STATUS_FAILED;
	exit(NSK_STATUS_FAILED);
	}

	NSK_DISPLAY0("doRestore: the original JNI function table is restored successfully\n");
	}

	/* ====================================================================== */
	static void lock(jvmtiEnv *jvmti) {
	if (!NSK_JVMTI_VERIFY(
	NSK_CPP_STUB2(
	RawMonitorEnter
	, jvmti
	, eventLock
	)
	)
	)
	{
	result = NSK_STATUS_FAILED;
	exit(NSK_STATUS_FAILED);
	}
	}

	/* ====================================================================== */
	static void unlock(jvmtiEnv *jvmti) {
	if (!NSK_JVMTI_VERIFY(
	NSK_CPP_STUB2(
	RawMonitorExit
	, jvmti
	, eventLock
	)
	)
	)
	{
	result = NSK_STATUS_FAILED;
	exit(NSK_STATUS_FAILED);
	}
	}

	/* ====================================================================== */
	static void checkCall(JNIEnv *env
	, int step
	, const char *callBackFunc
	, const char *msg
	, int exFndCalls
	)
	{
	jclass cls;

	NSK_TRACE(
	(cls = NSK_CPP_STUB2(
	FindClass
	, env
	, classSig
	))
	);

	NSK_TRACE(
	NSK_CPP_STUB1(ExceptionClear, env)
	);

	// The check should pass if the actual number of invocations is not less that the expected number (fnd_calls >= exFndCalls).
	// If the invocation is not expected (exFndCalls == 0), fnd_calls should be also == 0.
	if ((exFndCalls > 0 && fnd_calls >= exFndCalls) \|\| (fnd_calls == exFndCalls)) {
	NSK_DISPLAY5("CHECK PASSED: %s: the %s JNI function FindClass() has been %s during %s phase\n\t%d intercepted call(s) as expected\n"
	, callBackFunc
	, (step==1) ? "tested" : "original"
	, (step==1) ? "redirected" : "restored"
	, msg
	, fnd_calls
	);

	if (fnd_calls != exFndCalls) {
	NSK_COMPLAIN2("WARNING: the number of occured calls (%d) exceeds the expected number of calls (%d).\n"
	, fnd_calls
	, exFndCalls
	);
	}
	} else {
	result = NSK_STATUS_FAILED;

	NSK_COMPLAIN6("TEST FAILED: %s: the %s JNI function FindClass() has not been %s during %s phase\n\t%d intercepted call(s) instead of %d as expected\n"
	, callBackFunc
	, (step==1) ? "tested" : "original"
	, (step==1) ? "redirected" : "restored"
	, msg
	, fnd_calls
	, exFndCalls
	);
	}
	}

	/* ====================================================================== */
	// callback functions
	void JNICALL
	VMInit(jvmtiEnv jvmti, JNIEnv env, jthread thread) {
	jvmtiPhase phase = getVMPhase(jvmti);

	NSK_TRACE(lock(jvmti));

	NSK_DISPLAY1("b) VMInit: the current phase of VM execution %s\n"
	, TranslatePhase(phase)
	);

	// check JNI function table interception
	fnd_calls = 0;
	NSK_TRACE(doRedirect(jvmti, phase));
	NSK_TRACE(checkCall(env, 1, "VMInit", TranslatePhase(phase), 1));

	// check restored JNI function table
	fnd_calls = 0;
	NSK_TRACE(doRestore(jvmti));
	NSK_TRACE(checkCall(env, 2, "VMInit", TranslatePhase(phase), 0));

	NSK_TRACE(unlock(jvmti));
	}

	/* ====================================================================== */
	void JNICALL
	VMDeath(jvmtiEnv jvmti, JNIEnv env) {
	jvmtiPhase phase = getVMPhase(jvmti);

	NSK_TRACE(lock(jvmti));

	NSK_DISPLAY1("c) VMDeath: the current phase of VM execution %s\n"
	, TranslatePhase(phase)
	);

	// check JNI function table interception
	fnd_calls = 0;
	NSK_TRACE(doRedirect(jvmti, phase));
	NSK_TRACE(checkCall(env, 1, "VMDeath", TranslatePhase(phase), 1));

	// check restored JNI function table
	fnd_calls = 0;
	NSK_TRACE(doRestore(jvmti));
	NSK_TRACE(checkCall(env, 2, "VMDeath", TranslatePhase(phase), 0));

	(void) memset(&callbacks, 0, sizeof(callbacks));

	if (!NSK_JVMTI_VERIFY(
	NSK_CPP_STUB3(
	SetEventCallbacks
	, jvmti
	, &callbacks
	, sizeof(callbacks)
	)
	)
	)
	result = NSK_STATUS_FAILED;

	NSK_TRACE(unlock(jvmti));

	if (result == NSK_STATUS_FAILED) {
	exit(NSK_STATUS_FAILED);
	}
	}

	/* ====================================================================== */
	JNIEXPORT jint JNICALL
	Java_nsk_jvmti_scenarios_jni_1interception_JI01_ji01t001_check(JNIEnv *env, jobject obj) {
	return result;
	}

	/* ====================================================================== */
	#ifdef STATIC_BUILD
	JNIEXPORT jint JNICALL Agent_OnLoad_ji01t001(JavaVM jvm, char options, void *reserved) {
	return Agent_Initialize(jvm, options, reserved);
	}
	JNIEXPORT jint JNICALL Agent_OnAttach_ji01t001(JavaVM jvm, char options, void *reserved) {
	return Agent_Initialize(jvm, options, reserved);
	}
	JNIEXPORT jint JNI_OnLoad_ji01t001(JavaVM jvm, char options, void *reserved) {
	return JNI_VERSION_1_8;
	}
	#endif
	jint Agent_Initialize(JavaVM jvm, char options, void *reserved) {
	if (!NSK_VERIFY(
	nsk_jvmti_parseOptions(options)
	)
	)
	return JNI_ERR;


	if (!NSK_VERIFY(
	NSK_CPP_STUB3(
	GetEnv
	, jvm
	, (void **) &jvmti
	, JVMTI_VERSION_1_1
	) == JNI_OK
	&& jvmti != NULL
	)
	)
	return JNI_ERR;


	if (!NSK_JVMTI_VERIFY(
	NSK_CPP_STUB3(
	CreateRawMonitor
	, jvmti
	, "_event_lock"
	, &eventLock
	)
	)
	)
	return JNI_ERR;

	NSK_DISPLAY1("a) Trying to intercept JNI functions during %s phase ...\n"
	, TranslatePhase(getVMPhase(jvmti))
	);

	NSK_TRACE(doRedirect(jvmti, getVMPhase(jvmti)));

	NSK_DISPLAY0("Setting event callbacks...\n");

	(void) memset(&callbacks, 0, sizeof(callbacks));
	callbacks.VMInit = &VMInit;
	callbacks.VMDeath = &VMDeath;

	if (!NSK_JVMTI_VERIFY(
	NSK_CPP_STUB3(
	SetEventCallbacks
	, jvmti
	, &callbacks
	, sizeof(callbacks)
	)
	)
	)
	return JNI_ERR;


	NSK_DISPLAY0("Event callbacks are set\nEnabling events...\n");

	if (!NSK_JVMTI_VERIFY(
	NSK_CPP_STUB4(
	SetEventNotificationMode
	, jvmti
	, JVMTI_ENABLE
	, JVMTI_EVENT_VM_INIT
	, NULL
	)
	)
	)
	return JNI_ERR;


	if (!NSK_JVMTI_VERIFY(
	NSK_CPP_STUB4(
	SetEventNotificationMode
	, jvmti
	, JVMTI_ENABLE
	, JVMTI_EVENT_VM_DEATH
	, NULL
	)
	)
	)
	return JNI_ERR;

	NSK_DISPLAY0("Events are enabled\n");

	return JNI_OK;
	}