Reset JDKs cgroup subsystem instances

This is needed in order to get correct memory limits detected
for some code paths (one of which is JFR).

Reset containerMetrics and initializationTriggered static
variables in JDKEvents class so as to not carry over build-time
information to runtime.

Similarly, reset RequestEngine.entries list to an empty list
so that initialization doesn't re-add hooks added at build time.

Closes: #5396

Author: jerboaa

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")
+@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")
+@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")
+@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")
+@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")
+@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 {
+}