test/jdk/jdk/jfr/api/event/TestClinitRegistration.java
changeset 50113 caf115bb98ad
child 51214 67736b4846a0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/event/TestClinitRegistration.java	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,205 @@
+/*
+ * Copyright (c) 2018, 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 jdk.jfr.api.event;
+
+import java.io.IOException;
+import java.util.List;
+
+import jdk.jfr.Event;
+import jdk.jfr.EventType;
+import jdk.jfr.FlightRecorder;
+import jdk.jfr.Recording;
+import jdk.jfr.Registered;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.test.lib.Asserts;
+import jdk.test.lib.jfr.Events;
+
+/*
+ * @test
+ * @summary Test enable/disable event and verify recording has expected events.
+ * @key jfr
+ * @library /test/lib
+ * @run main/othervm jdk.jfr.api.event.TestClinitRegistration
+ */
+
+public class TestClinitRegistration {
+
+    public static void main(String[] args) throws Exception {
+        // Test basic registration with or without auto registration
+        assertClinitRegister(AutoRegisteredEvent.class, true, false);
+        assertClinitRegister(NotAutoRegisterededEvent.class, false, false);
+        assertClinitRegister(AutoRegisteredUserClinit.class, true, true);
+        assertClinitRegister(NotAutoRegisteredUserClinit.class, false, true);
+
+        // Test complex <clinit>
+        assertClinitRegister(ComplexClInit.class, true, true);
+
+        // Test hierarchy
+        assertClinitRegister(DerivedClinit.class, true, true);
+        if (!isClinitExecuted(Base.class)) {
+            Asserts.fail("Expected <clinit> of base class to be executed");
+        }
+
+        // Test committed event in <clinit>
+        Recording r = new Recording();
+        r.start();
+        r.enable(EventInClinit.class);
+        triggerClinit(EventInClinit.class);
+        r.stop();
+        hasEvent(r, EventInClinit.class.getName());
+    }
+
+    private static void assertClinitRegister(Class<? extends Event> eventClass, boolean shouldExist, boolean setsProperty) throws ClassNotFoundException {
+        String className = eventClass.getName();
+        triggerClinit(eventClass);
+        boolean hasEventType = hasEventType(className);
+        boolean hasProperty = Boolean.getBoolean(className);
+        if (hasEventType && !shouldExist) {
+            Asserts.fail("Event class " + className + " should not be registered");
+        }
+        if (!hasEventType && shouldExist) {
+            Asserts.fail("Event class " + className + " is not registered");
+        }
+        if (setsProperty && !hasProperty) {
+            Asserts.fail("Expected clinit to be executed");
+        }
+        if (!setsProperty && hasProperty) {
+            Asserts.fail("Property in clinit should not been set. Test bug?");
+        }
+    }
+
+    private static boolean hasEventType(String name) {
+        for (EventType type : FlightRecorder.getFlightRecorder().getEventTypes()) {
+            if (type.getName().equals(name)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private static void triggerClinit(Class<?> clazz) throws ClassNotFoundException {
+        Class.forName(clazz.getName(), true, clazz.getClassLoader());
+    }
+
+    private static void setClinitExecuted(Class<? extends Event> eventClass) {
+        System.setProperty(eventClass.getName(), "true");
+    }
+
+    private static boolean isClinitExecuted(Class<? extends Event> eventClass) {
+        return "true".equals(System.getProperty(eventClass.getName(), "true"));
+    }
+
+    static class AutoRegisteredEvent extends Event {
+    }
+
+    @Registered(false)
+    static class NotAutoRegisterededEvent extends Event {
+    }
+
+    static class AutoRegisteredUserClinit extends Event {
+        static {
+            setClinitExecuted(AutoRegisteredUserClinit.class);
+        }
+    }
+
+    @Registered(false)
+    static class NotAutoRegisteredUserClinit extends Event {
+        static {
+            setClinitExecuted(NotAutoRegisteredUserClinit.class);
+        }
+    }
+
+    static class Base extends Event {
+        static {
+            setClinitExecuted(Base.class);
+        }
+    }
+
+    static class DerivedClinit extends Base {
+        static {
+            setClinitExecuted(DerivedClinit.class);
+        }
+
+        @Deprecated
+        void myVoidMethod() {
+        }
+    }
+
+    static class ComplexClInit extends Event {
+        static {
+            setClinitExecuted(ComplexClInit.class);
+        }
+        public static final long l = Long.parseLong("7");
+        public static final int i = Integer.parseInt("7");
+        public static final short s = Short.parseShort("7");
+        public static final double d = Double.parseDouble("7");
+        public static final float f = Float.parseFloat("7");
+        public static final boolean b = Boolean.parseBoolean("true");
+        public static final char c = (char) Integer.parseInt("48");
+        public static final String text = "ioio".substring(2);
+        public static final int[] primitivArray = new int[] { 7, 4 };
+        public static final Class<?> Object = ComplexClInit.class;
+
+        static {
+            String text = "";
+            long l = 56;
+            long i = 56;
+            if (i != l) {
+                throw new RuntimeException("unexpected result from comparison");
+            }
+            if (!isClinitExecuted(ComplexClInit.class)) {
+                throw new RuntimeException("Expected clinit flag to be set" + text);
+            }
+        }
+
+        static {
+            try {
+                throw new IllegalStateException("Exception");
+            } catch (IllegalStateException ise) {
+                // as expected
+            }
+        }
+    }
+
+    static class EventInClinit extends Event {
+        static {
+            EventInClinit eventInClinit = new EventInClinit();
+            eventInClinit.commit();
+        }
+    }
+
+    public static void hasEvent(Recording r, String name) throws IOException {
+        List<RecordedEvent> events = Events.fromRecording(r);
+        Events.hasEvents(events);
+
+        for (RecordedEvent event : events) {
+            if (event.getEventType().getName().equals(name)) {
+                return;
+            }
+        }
+        Asserts.fail("Missing event " + name + " in recording " + events.toString());
+    }
+}