--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/typeAnnotations/classfile/DeadCode.java Tue Jan 26 11:23:54 2010 -0800
@@ -0,0 +1,181 @@
+/*
+ * Copyright 2009-2010 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+import java.io.*;
+import java.net.URL;
+import java.util.List;
+
+import com.sun.tools.classfile.*;
+
+/*
+ * @test
+ * @bug 6917130
+ * @summary test that optimized away annotations are not emited to classfile
+ */
+
+public class DeadCode {
+ public static void main(String[] args) throws Exception {
+ new DeadCode().run();
+ }
+
+ public void run() throws Exception {
+ ClassFile cf = getClassFile("DeadCode$Test.class");
+ test(cf);
+ for (Field f : cf.fields) {
+ test(cf, f);
+ }
+ for (Method m: cf.methods) {
+ test(cf, m);
+ }
+
+ countAnnotations();
+
+ if (errors > 0)
+ throw new Exception(errors + " errors found");
+ System.out.println("PASSED");
+ }
+
+ ClassFile getClassFile(String name) throws IOException, ConstantPoolException {
+ URL url = getClass().getResource(name);
+ InputStream in = url.openStream();
+ try {
+ return ClassFile.read(in);
+ } finally {
+ in.close();
+ }
+ }
+
+ /************ Helper annotations counting methods ******************/
+ void test(ClassFile cf) {
+ test(cf, Attribute.RuntimeVisibleTypeAnnotations, true);
+ test(cf, Attribute.RuntimeInvisibleTypeAnnotations, false);
+ }
+
+ void test(ClassFile cf, Method m) {
+ test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
+ test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
+ }
+
+ void test(ClassFile cf, Field m) {
+ test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
+ test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
+ }
+
+ // test the result of Attributes.getIndex according to expectations
+ // encoded in the method's name
+ void test(ClassFile cf, String name, boolean visible) {
+ int index = cf.attributes.getIndex(cf.constant_pool, name);
+ if (index != -1) {
+ Attribute attr = cf.attributes.get(index);
+ assert attr instanceof RuntimeTypeAnnotations_attribute;
+ RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
+ all += tAttr.annotations.length;
+ if (visible)
+ visibles += tAttr.annotations.length;
+ else
+ invisibles += tAttr.annotations.length;
+ }
+ }
+
+ // test the result of Attributes.getIndex according to expectations
+ // encoded in the method's name
+ void test(ClassFile cf, Method m, String name, boolean visible) {
+ int index = m.attributes.getIndex(cf.constant_pool, name);
+ if (index != -1) {
+ Attribute attr = m.attributes.get(index);
+ assert attr instanceof RuntimeTypeAnnotations_attribute;
+ RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
+ all += tAttr.annotations.length;
+ if (visible)
+ visibles += tAttr.annotations.length;
+ else
+ invisibles += tAttr.annotations.length;
+ }
+ }
+
+ // test the result of Attributes.getIndex according to expectations
+ // encoded in the method's name
+ void test(ClassFile cf, Field m, String name, boolean visible) {
+ int index = m.attributes.getIndex(cf.constant_pool, name);
+ if (index != -1) {
+ Attribute attr = m.attributes.get(index);
+ assert attr instanceof RuntimeTypeAnnotations_attribute;
+ RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
+ all += tAttr.annotations.length;
+ if (visible)
+ visibles += tAttr.annotations.length;
+ else
+ invisibles += tAttr.annotations.length;
+ }
+ }
+
+ void countAnnotations() {
+ int expected_all = expected_visibles + expected_invisibles;
+
+ if (expected_all != all) {
+ errors++;
+ System.err.println("expected " + expected_all
+ + " annotations but found " + all);
+ }
+
+ if (expected_visibles != visibles) {
+ errors++;
+ System.err.println("expected " + expected_visibles
+ + " visibles annotations but found " + visibles);
+ }
+
+ if (expected_invisibles != invisibles) {
+ errors++;
+ System.err.println("expected " + expected_invisibles
+ + " invisibles annotations but found " + invisibles);
+ }
+
+ }
+
+ int errors;
+ int all;
+ int visibles;
+ int invisibles;
+
+ /*********************** Test class *************************/
+ static int expected_invisibles = 1;
+ static int expected_visibles = 0;
+ static class Test {
+ @interface A {}
+
+ void test() {
+ List<? extends @A Object> o = null;
+ o.toString();
+
+ @A String m;
+ if (false) {
+ @A String a;
+ @A String b = "m";
+ b.toString();
+ List<? extends @A Object> c = null;
+ c.toString();
+ }
+ }
+ }
+
+}