1/* 2 * Copyright (c) 2010, 2015, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* 25 * @test 26 * @bug 6993301 27 * @summary catch parameters do not have correct kind (i.e. ElementKind.EXCEPTION_PARAMETER) 28 * @modules jdk.compiler/com.sun.tools.javac.api 29 */ 30 31import com.sun.source.tree.CompilationUnitTree; 32import com.sun.source.tree.IdentifierTree; 33import com.sun.source.tree.VariableTree; 34import com.sun.source.util.TreePathScanner; 35import com.sun.source.util.Trees; 36import com.sun.tools.javac.api.JavacTaskImpl; 37import java.io.IOException; 38import java.net.URI; 39import java.util.Arrays; 40import javax.lang.model.element.Element; 41import javax.lang.model.element.ElementKind; 42import javax.tools.JavaCompiler; 43import javax.tools.JavaFileObject; 44import javax.tools.SimpleJavaFileObject; 45import javax.tools.ToolProvider; 46 47/** 48 * @author Jan Lahoda 49 */ 50public class T6993301 { 51 public static void main(String... args) throws Exception { 52 new T6993301().testExceptionParameterCorrectKind(); 53 } 54 55 static class MyFileObject extends SimpleJavaFileObject { 56 private String text; 57 public MyFileObject(String text) { 58 super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); 59 this.text = text; 60 } 61 @Override 62 public CharSequence getCharContent(boolean ignoreEncodingErrors) { 63 return text; 64 } 65 } 66 67 public void testExceptionParameterCorrectKind() throws IOException { 68 final JavaCompiler tool = ToolProvider.getSystemJavaCompiler(); 69 assert tool != null; 70 71 String code = "package test; public class Test { { try { } catch (NullPointerException ex) {} } }"; 72 73 final JavacTaskImpl ct = (JavacTaskImpl)tool.getTask(null, null, null, 74 null, null, Arrays.asList(new MyFileObject(code))); 75 CompilationUnitTree cut = ct.parse().iterator().next(); 76 77 ct.analyze(); 78 79 new TreePathScanner<Void, Void>() { 80 @Override 81 public Void visitVariable(VariableTree node, Void p) { 82 Element el = Trees.instance(ct).getElement(getCurrentPath()); 83 84 assertNotNull(el); 85 assertEquals(ElementKind.EXCEPTION_PARAMETER, el.getKind()); 86 87 return super.visitVariable(node, p); 88 } 89 }.scan(cut, null); 90 } 91 92 private void assertNotNull(Object o) { 93 if (o == null) 94 throw new AssertionError(); 95 } 96 97 private <T> void assertEquals(T expected, T actual) { 98 if (expected == null ? actual == null : expected.equals(actual)) 99 return; 100 throw new AssertionError("expected: " + expected + ", actual: " + actual); 101 } 102 103} 104