diff --git a/substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/thread/Target_jdk_internal_vm_ThreadContainers.java b/substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/thread/Target_jdk_internal_vm_ThreadContainers.java new file mode 100644 index 000000000000..ba2fb38e9ea0 --- /dev/null +++ b/substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/thread/Target_jdk_internal_vm_ThreadContainers.java @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2022, 2022, 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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. + */ +package com.oracle.svm.core.thread; + +import com.oracle.svm.core.annotate.KeepOriginal; +import com.oracle.svm.core.annotate.Substitute; +import com.oracle.svm.core.annotate.TargetClass; +import com.oracle.svm.core.jdk.JDK19OrLater; + +/** + * The purpose of the target class is to support debugging and monitoring of threads. Because we + * currently don't provide/expose means for doing so, we replace it with an almost empty + * implementation. + */ +@TargetClass(className = "jdk.internal.vm.ThreadContainers", onlyWith = JDK19OrLater.class) +@Substitute +@SuppressWarnings("unused") +final class Target_jdk_internal_vm_ThreadContainers { + + @Substitute + public static Object registerContainer(Target_jdk_internal_vm_ThreadContainer container) { + return null; + } + + @Substitute + public static void deregisterContainer(Object key) { + } + + @KeepOriginal + public static native Target_jdk_internal_vm_ThreadContainer root(); +} + +@TargetClass(className = "jdk.internal.vm.ThreadContainer", onlyWith = JDK19OrLater.class) +final class Target_jdk_internal_vm_ThreadContainer { +}