1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.api.metadata.eventtype; 27 28 import jdk.jfr.Event; 29 import jdk.jfr.EventType; 30 import jdk.jfr.ValueDescriptor; 31 import jdk.test.lib.Asserts; 32 33 /** 34 * @test 35 * @summary Test getField() 36 * @key jfr 37 * 38 * @library /lib / 39 * @run main/othervm jdk.jfr.api.metadata.eventtype.TestGetField 40 */ 41 public class TestGetField { 42 43 public static void main(String[] args) throws Throwable { 44 EventType type = EventType.getEventType(MyEvent.class); 45 46 ValueDescriptor v = type.getField("myByte"); 47 Asserts.assertNotNull(v, "getFiled(myByte) was null"); 48 Asserts.assertEquals(v.getTypeName(), "byte", "myByte was not type byte"); 49 50 v = type.getField("myInt"); 51 Asserts.assertNotNull(v, "getFiled(myInt) was null"); 52 Asserts.assertEquals(v.getTypeName(), "int", "myInt was not type int"); 53 54 v = type.getField("myStatic"); 55 Asserts.assertNull(v, "got static field"); 56 57 v = type.getField("notAField"); 58 Asserts.assertNull(v, "got field that does not exist"); 59 60 v = type.getField(""); 61 Asserts.assertNull(v, "got field for empty name"); 62 63 try { 64 v = type.getField(null); 65 Asserts.fail("No Exception when getField(null)"); 66 } catch (NullPointerException e) { 67 // Expected exception 68 } 69 } 70 71 @SuppressWarnings("unused") 72 private static class MyEvent extends Event { 73 public byte myByte; 74 private int myInt; 75 public static int myStatic; // Should not be included 76 } 77 }