--- /dev/null 2017-09-15 09:27:35.639213363 +0200 +++ new/src/jdk.internal.vm.compiler.management/share/classes/org/graalvm/compiler/hotspot/jmx/GraalMBeans.java 2017-09-15 14:03:57.093790985 +0200 @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2017, 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. + * + * 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 org.graalvm.compiler.hotspot.jmx; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import java.util.Map; +import java.util.Set; +import jdk.vm.ci.runtime.JVMCI; +import jdk.vm.ci.runtime.JVMCICompiler; +import jdk.vm.ci.runtime.JVMCIRuntime; +import org.graalvm.compiler.hotspot.HotSpotGraalCompiler; +import sun.management.spi.PlatformMBeanProvider; +import sun.management.spi.PlatformMBeanProvider.PlatformComponent; + +public final class GraalMBeans extends PlatformMBeanProvider { + @Override + public List> getPlatformComponentList() { + List> components = new ArrayList<>(); + try { + Object bean = findGraalRuntimeBean(); + if (bean != null) { + components.add(new HotSpotRuntimeMBeanComponent(bean)); + } + } catch (InternalError | LinkageError err) { + // go on and ignore + } + return components; + } + + public static Object findGraalRuntimeBean() { + JVMCIRuntime r = JVMCI.getRuntime(); + JVMCICompiler c = r.getCompiler(); + if (c instanceof HotSpotGraalCompiler) { + return ((HotSpotGraalCompiler) c).mbean(); + } + return null; + } + + private static final class HotSpotRuntimeMBeanComponent implements PlatformComponent { + + private final String name; + private final Object mbean; + + HotSpotRuntimeMBeanComponent(Object mbean) { + this.name = "org.graalvm.compiler.hotspot:type=Options"; + this.mbean = mbean; + } + + @Override + public Set> mbeanInterfaces() { + return Collections.emptySet(); + } + + @Override + public Set mbeanInterfaceNames() { + return Collections.emptySet(); + } + + @Override + public String getObjectNamePattern() { + return name; + } + + @Override + public Map nameToMBeanMap() { + return Collections.singletonMap(name, mbean); + } + } +}