75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
/*
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* Copyright (c) 2018, Red Hat, Inc. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include <jni.h>
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#include <stdio.h>
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#include <stdlib.h>
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JNIEnv* create_vm(JavaVM **jvm, char *extra_option)
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{
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JNIEnv* env;
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JavaVMInitArgs args;
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JavaVMOption options[4];
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args.version = JNI_VERSION_1_8;
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args.nOptions = 3 + (extra_option != NULL);
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options[0].optionString = "-Xss2048k";
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char classpath[4096];
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snprintf(classpath, sizeof classpath,
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"-Djava.class.path=%s", getenv("CLASSPATH"));
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options[1].optionString = classpath;
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options[2].optionString = "-XX:+UnlockExperimentalVMOptions";
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if (extra_option) {
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options[3].optionString = extra_option;
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}
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args.options = &options[0];
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args.ignoreUnrecognized = 0;
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int rv;
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rv = JNI_CreateJavaVM(jvm, (void**)&env, &args);
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if (rv < 0) return NULL;
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return env;
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}
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void run(char *extra_arg) {
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JavaVM *jvm;
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jclass T_class;
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jmethodID test_method;
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JNIEnv *env = create_vm(&jvm, extra_arg);
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if (env == NULL)
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exit(1);
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T_class = (*env)->FindClass(env, "T");
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test_method = (*env)->GetStaticMethodID(env, T_class, "test", "(I)V");
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(*env)->CallStaticVoidMethod(env, T_class, test_method, 1000);
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}
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int main(int argc, char **argv)
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{
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if (argc > 1) {
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run(argv[1]);
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} else {
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run(NULL);
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}
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return 0;
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}
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