--- /dev/null	2017-11-09 09:38:01.297999907 +0100
+++ new/test/jdk/jdk/jfr/api/metadata/annotations/TestTypesIdentical.java	2018-04-09 16:53:55.770242624 +0200
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2015, 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.metadata.annotations;
+
+import jdk.jfr.AnnotationElement;
+import jdk.jfr.BooleanFlag;
+import jdk.jfr.Category;
+import jdk.jfr.ContentType;
+import jdk.jfr.Description;
+import jdk.jfr.Enabled;
+import jdk.jfr.Experimental;
+import jdk.jfr.Frequency;
+import jdk.jfr.Label;
+import jdk.jfr.MemoryAddress;
+import jdk.jfr.DataAmount;
+import jdk.jfr.MetadataDefinition;
+import jdk.jfr.Name;
+import jdk.jfr.Percentage;
+import jdk.jfr.Period;
+import jdk.jfr.Registered;
+import jdk.jfr.Relational;
+import jdk.jfr.StackTrace;
+import jdk.jfr.Threshold;
+import jdk.jfr.Timespan;
+import jdk.jfr.Timestamp;
+import jdk.jfr.TransitionFrom;
+import jdk.jfr.TransitionTo;
+import jdk.jfr.Unsigned;
+import jdk.test.lib.Asserts;
+
+/*
+ * @test
+ * @key jfr
+ * @library /test/lib
+ * @run main/othervm jdk.jfr.api.metadata.annotations.TestTypesIdentical
+ */
+public class TestTypesIdentical {
+
+    @MetadataDefinition
+    @interface CustomAnnotation {
+        String value();
+    }
+
+    private static Class<?>[] predefinedAnnotations = {
+        Category.class, Enabled.class,  Frequency.class,  DataAmount.class,  Percentage.class,  StackTrace.class,  Timestamp.class,  Unsigned.class,
+        ContentType.class,  Experimental.class,  Label.class, Registered.class, Period.class, Threshold.class,  TransitionFrom.class,
+        Description.class, BooleanFlag.class,  MemoryAddress.class,  Name.class,  Relational.class, Timespan.class, TransitionTo.class
+    };
+
+    @SuppressWarnings("unchecked")
+    public static void main(String[] args) throws Exception {
+
+        for(Class<?> clz : predefinedAnnotations) {
+            System.out.println("Testing class " + clz);
+            assertTypeId((Class<? extends java.lang.annotation.Annotation>) clz);
+        }
+        assertTypeId(CustomAnnotation.class);
+    }
+
+    private static void assertTypeId(Class<? extends java.lang.annotation.Annotation> clz) {
+        AnnotationElement a1, a2;
+        try {
+            a1 = new AnnotationElement(clz, "value");
+            a2 = new AnnotationElement(clz, "value2");
+        } catch(IllegalArgumentException x) {
+            a1 = new AnnotationElement(clz);
+            a2 = new AnnotationElement(clz);
+        }
+        Asserts.assertEquals(a1.getTypeId(), a2.getTypeId());
+    }
+}