Examples with HotSpotGraalMBean org.graalvm.compiler.hotspot.HotSpotGraalMBean used on opensource projects

Example 1 with HotSpotGraalMBean

use of org.graalvm.compiler.hotspot.HotSpotGraalMBean in project graal by oracle.

the class HotSpotGraalMBeanTest method dumpOperation.

@Test
public void dumpOperation() throws Exception {
    Field field = null;
    try {
        field = stopMBeanServer();
    } catch (Exception ex) {
        if (ex.getClass().getName().equals("java.lang.reflect.InaccessibleObjectException")) {
            // skip on JDK9
            return;
        }
    }
    assertNull("The platformMBeanServer isn't initialized now", field.get(null));
    ObjectName name;
    assertNotNull("Server is started", ManagementFactory.getPlatformMBeanServer());
    HotSpotGraalMBean realBean = HotSpotGraalMBean.create(null);
    assertNotNull("Bean is registered", name = realBean.ensureRegistered(false));
    final MBeanServer server = ManagementFactory.getPlatformMBeanServer();
    ObjectInstance bean = server.getObjectInstance(name);
    assertNotNull("Bean is registered", bean);
    MBeanInfo info = server.getMBeanInfo(name);
    assertNotNull("Info is found", info);
    final MBeanOperationInfo[] arr = info.getOperations();
    assertEquals("Currently three overloads", 3, arr.length);
    MBeanOperationInfo dumpOp = null;
    for (int i = 0; i < arr.length; i++) {
        assertEquals("dumpMethod", arr[i].getName());
        if (arr[i].getSignature().length == 3) {
            dumpOp = arr[i];
        }
    }
    assertNotNull("three args variant found", dumpOp);
    server.invoke(name, "dumpMethod", new Object[] { "java.util.Arrays", "asList", ":3" }, null);
    MBeanAttributeInfo dump = (MBeanAttributeInfo) findAttributeInfo("Dump", info);
    Attribute dumpTo1 = new Attribute(dump.getName(), "");
    server.setAttribute(name, dumpTo1);
    Object after = server.getAttribute(name, dump.getName());
    assertEquals("", after);
    OptionValues empty = new OptionValues(EconomicMap.create());
    OptionValues unsetDump = realBean.optionsFor(empty, null);
    final MetaAccessProvider metaAccess = jdk.vm.ci.runtime.JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess();
    ResolvedJavaMethod method = metaAccess.lookupJavaMethod(Arrays.class.getMethod("asList", Object[].class));
    final OptionValues forMethod = realBean.optionsFor(unsetDump, method);
    assertNotSame(unsetDump, forMethod);
    Object nothing = unsetDump.getMap().get(DebugOptions.Dump);
    assertEquals("Empty string", "", nothing);
    Object specialValue = forMethod.getMap().get(DebugOptions.Dump);
    assertEquals(":3", specialValue);
    OptionValues normalMethod = realBean.optionsFor(unsetDump, null);
    Object noSpecialValue = normalMethod.getMap().get(DebugOptions.Dump);
    assertEquals("Empty string", "", noSpecialValue);
}

Example 2 with HotSpotGraalMBean

use of org.graalvm.compiler.hotspot.HotSpotGraalMBean in project graal by oracle.

the class HotSpotGraalMBeanTest method registration.

@Test
public void registration() throws Exception {
    ObjectName name;
    Field field = null;
    try {
        field = stopMBeanServer();
    } catch (Exception ex) {
        if (ex.getClass().getName().equals("java.lang.reflect.InaccessibleObjectException")) {
            // skip on JDK9
            return;
        }
    }
    assertNull("The platformMBeanServer isn't initialized now", field.get(null));
    HotSpotGraalMBean bean = HotSpotGraalMBean.create(null);
    assertNotNull("Bean created", bean);
    assertNull("It is not registered yet", bean.ensureRegistered(true));
    MBeanServer server = ManagementFactory.getPlatformMBeanServer();
    assertNotNull("Now the bean thinks it is registered", name = bean.ensureRegistered(true));
    assertNotNull("And the bean is found", server.getObjectInstance(name));
}

Example 3 with HotSpotGraalMBean

use of org.graalvm.compiler.hotspot.HotSpotGraalMBean in project graal by oracle.

the class HotSpotGraalMBeanTest method optionsAreCached.

@Test
public void optionsAreCached() throws Exception {
    ObjectName name;
    assertNotNull("Server is started", ManagementFactory.getPlatformMBeanServer());
    HotSpotGraalMBean realBean = HotSpotGraalMBean.create(null);
    OptionValues original = new OptionValues(EconomicMap.create());
    assertSame(original, realBean.optionsFor(original, null));
    assertNotNull("Bean is registered", name = realBean.ensureRegistered(false));
    final MBeanServer server = ManagementFactory.getPlatformMBeanServer();
    ObjectInstance bean = server.getObjectInstance(name);
    assertNotNull("Bean is registered", bean);
    MBeanInfo info = server.getMBeanInfo(name);
    assertNotNull("Info is found", info);
    MBeanAttributeInfo dump = (MBeanAttributeInfo) findAttributeInfo("Dump", info);
    Attribute dumpTo1 = new Attribute(dump.getName(), 1);
    server.setAttribute(name, dumpTo1);
    Object after = server.getAttribute(name, dump.getName());
    assertEquals(1, after);
    final OptionValues modified1 = realBean.optionsFor(original, null);
    assertNotSame(original, modified1);
    final OptionValues modified2 = realBean.optionsFor(original, null);
    assertSame("Options are cached", modified1, modified2);
}

Example 4 with HotSpotGraalMBean

use of org.graalvm.compiler.hotspot.HotSpotGraalMBean in project graal by oracle.

the class HotSpotGraalMBeanTest method readBeanInfo.

@Test
public void readBeanInfo() throws Exception {
    ObjectName name;
    assertNotNull("Server is started", ManagementFactory.getPlatformMBeanServer());
    HotSpotGraalMBean realBean = HotSpotGraalMBean.create(null);
    assertNotNull("Bean is registered", name = realBean.ensureRegistered(false));
    final MBeanServer server = ManagementFactory.getPlatformMBeanServer();
    ObjectInstance bean = server.getObjectInstance(name);
    assertNotNull("Bean is registered", bean);
    MBeanInfo info = server.getMBeanInfo(name);
    assertNotNull("Info is found", info);
    MBeanAttributeInfo printCompilation = (MBeanAttributeInfo) findAttributeInfo("PrintCompilation", info);
    assertNotNull("PrintCompilation found", printCompilation);
    assertEquals("true/false", Boolean.class.getName(), printCompilation.getType());
    Attribute printOn = new Attribute(printCompilation.getName(), Boolean.TRUE);
    Object before = server.getAttribute(name, printCompilation.getName());
    server.setAttribute(name, printOn);
    Object after = server.getAttribute(name, printCompilation.getName());
    assertNull("Default value was not set", before);
    assertEquals("Changed to on", Boolean.TRUE, after);
}