/*
* Copyright ( c ) 2018 , Red Hat , Inc . 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 <jni.h>
#include <stdio.h>
#include <stdlib.h>
JNIEnv* create_vm(JavaVM **jvm, char *extra_option)
{
JNIEnv* env;
JavaVMInitArgs args;
JavaVMOption options[4 ];
args.version = JNI_VERSION_1_8;
args.nOptions = 3 + (extra_option != NULL);
options[0 ].optionString = "-Xss2048k" ;
char classpath[4096 ];
snprintf(classpath, sizeof classpath,
"-Djava.class.path=%s" , getenv("CLASSPATH" ));
options[1 ].optionString = classpath;
options[2 ].optionString = "-XX:+UnlockExperimentalVMOptions" ;
if (extra_option) {
options[3 ].optionString = extra_option;
}
args.options = &options[0 ];
args.ignoreUnrecognized = 0 ;
int rv;
rv = JNI_CreateJavaVM(jvm, (void **)&env, &args);
if (rv < 0 ) return NULL;
return env;
}
void run(char *extra_arg) {
JavaVM *jvm;
jclass T_class;
jmethodID test_method;
JNIEnv *env = create_vm(&jvm, extra_arg);
if (env == NULL)
exit (1 );
T_class = (*env)->FindClass(env, "T" );
test_method = (*env)->GetStaticMethodID(env, T_class, "test" , "(I)V" );
(*env)->CallStaticVoidMethod(env, T_class, test_method, 1000 );
}
int main(int argc, char **argv)
{
if (argc > 1 ) {
run(argv[1 ]);
} else {
run(NULL);
}
return 0 ;
}
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