1 /* 2 * Copyright (c) 2007, 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 #include "jni.h" 25 26 extern "C" { 27 28 29 int always_true = 1; 30 31 JNIEXPORT jint JNICALL 32 Java_nsk_jdwp_ThreadReference_ForceEarlyReturn_forceEarlyReturn002_forceEarlyReturn002a_nativeMethod(JNIEnv *env, jobject classObject, jobject object) 33 { 34 // notify another thread that thread in native method 35 jclass klass = env->GetObjectClass(object); 36 jfieldID field = env->GetFieldID(klass, "threadInNative", "Z"); 37 env->SetBooleanField(object, field, 1); 38 39 // attempt to read char from stdin instead of infinite loop 40 // because infinite loop might be eliminated by compiler optimizer. 41 fgetc(stdin); 42 43 // should not reach here 44 return -1; 45 } 46 47 }