/*
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* 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.
*
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*/
/*
* @test
* @bug 6993301
* @summary catch parameters do not have correct kind (i.e. ElementKind.EXCEPTION_PARAMETER)
*/
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.tree.IdentifierTree;
import com.sun.source.tree.VariableTree;
import com.sun.source.util.TreePathScanner;
import com.sun.source.util.Trees;
import com.sun.tools.javac.api.JavacTaskImpl;
import java.io.IOException;
import java.net.URI;
import java.util.Arrays;
import javax.lang.model.element.Element;
import javax.lang.model.element.ElementKind;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.ToolProvider;
/**
*
* @author Jan Lahoda
*/
public class T6993301 {
public static void main(String... args) throws Exception {
new T6993301().testExceptionParameterCorrectKind();
}
static class MyFileObject extends SimpleJavaFileObject {
private String text;
public MyFileObject(String text) {
super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
this.text = text;
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return text;
}
}
public void testExceptionParameterCorrectKind() throws IOException {
final String bootPath = System.getProperty("sun.boot.class.path");
final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
assert tool != null;
String code = "package test; public class Test { { try { } catch (NullPointerException ex) {} } }";
final JavacTaskImpl ct = (JavacTaskImpl)tool.getTask(null, null, null,
Arrays.asList("-bootclasspath", bootPath),
null, Arrays.asList(new MyFileObject(code)));
CompilationUnitTree cut = ct.parse().iterator().next();
ct.analyze();
new TreePathScanner<Void, Void>() {
@Override
public Void visitVariable(VariableTree node, Void p) {
Element el = Trees.instance(ct).getElement(getCurrentPath());
assertNotNull(el);
assertEquals(ElementKind.EXCEPTION_PARAMETER, el.getKind());
return super.visitVariable(node, p);
}
}.scan(cut, null);
}
private void assertNotNull(Object o) {
if (o == null)
throw new AssertionError();
}
private <T> void assertEquals(T expected, T actual) {
if (expected == null ? actual == null : expected.equals(actual))
return;
throw new AssertionError("expected: " + expected + ", actual: " + actual);
}
}