[GR-42465] Reset JDKs cgroup subsystem instances.

PullRequest: graal/13182

Author: fniephaus

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jdk/JDKContainerSubstitutions.java

@@ -0,0 +1,93 @@
+/*
+ * 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.jdk;
+
+import org.graalvm.nativeimage.Platform.LINUX;
+
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import org.graalvm.nativeimage.Platforms;
+
+import com.oracle.svm.core.annotate.Alias;
+import com.oracle.svm.core.annotate.RecomputeFieldValue;
+import com.oracle.svm.core.annotate.RecomputeFieldValue.Kind;
+
+import com.oracle.svm.core.annotate.TargetClass;
+
+@TargetClass(className = "jdk.internal.platform.cgroupv1.CgroupV1Subsystem", onlyWith = JDK17OrLater.class)
+@Platforms(LINUX.class)
+final class Target_jdk_internal_platform_cgroupv1_CgroupV1Subsystem {
+    @Alias //
+    @RecomputeFieldValue(kind = Kind.Reset) //
+    private static volatile Target_jdk_internal_platform_cgroupv1_CgroupV1Subsystem INSTANCE;
+}
+
+@TargetClass(className = "jdk.internal.platform.cgroupv2.CgroupV2Subsystem", onlyWith = JDK17OrLater.class)
+@Platforms(LINUX.class)
+final class Target_jdk_internal_platform_cgroupv2_CgroupV2Subsystem {
+    @Alias //
+    @RecomputeFieldValue(kind = Kind.Reset) //
+    private static volatile Target_jdk_internal_platform_cgroupv2_CgroupV2Subsystem INSTANCE;
+}
+
+@TargetClass(className = "jdk.jfr.internal.instrument.JDKEvents", onlyWith = JDK17OrLater.class)
+@Platforms(LINUX.class)
+final class Target_jdk_jfr_internal_instrument_JDKEvents {
+    @Alias //
+    @RecomputeFieldValue(kind = Kind.Reset) //
+    private static Target_jdk_internal_platform_Metrics containerMetrics;
+
+    @Alias //
+    @RecomputeFieldValue(kind = Kind.Reset) //
+    private static boolean initializationTriggered;
+}
+
+@TargetClass(className = "jdk.jfr.internal.RequestEngine", onlyWith = JDK17OrLater.class)
+@Platforms(LINUX.class)
+final class Target_jdk_jfr_internal_RequestEngine {
+    @Alias //
+    @RecomputeFieldValue(kind = Kind.NewInstance, declClass = CopyOnWriteArrayList.class) //
+    private static List<?> entries;
+}
+
+// Only present in JDKs without JDK-8268398
+@TargetClass(className = "jdk.jfr.internal.Utils", onlyWith = {JDK17OrEarlier.class, JDK17OrLater.class})
+@Platforms(LINUX.class)
+final class Target_jdk_jfr_internal_Utils {
+    @Alias //
+    @RecomputeFieldValue(kind = Kind.Reset) //
+    private static Target_jdk_internal_platform_Metrics[] metrics;
+}
+
+@TargetClass(className = "jdk.internal.platform.Metrics", onlyWith = JDK17OrLater.class)
+@Platforms(LINUX.class)
+final class Target_jdk_internal_platform_Metrics {
+}
+
+/** Dummy class to have a class with the file's name. */
+public final class JDKContainerSubstitutions {
+}