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/*
* Copyright (c) 2004, 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.
*
* 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.
*/
/*
* @test
* @bug 4992173 4992170
*
* @run shell make_src.sh
* @run shell build.sh
* @run main/othervm -esa -ea EnclosingClassTest
*
* @summary Check getEnclosingClass and other methods
* @author Peter von der Ah\u00e9
*/
/*
* We have five kinds of classes:
* a) Top level classes
* b) Nested classes (static member classes)
* c) Inner classes (non-static member classes)
* d) Local classes (named classes declared within a method)
* e) Anonymous classes
*
* Each one can be within a package or not.
* Kinds b-e can/must be within kinds a-e.
* This gives us a three dimensional space:
* 1. dimension: b-e
* 2. dimension: a-e
* 3. dimension: packages
*
* We make a two dimensional matrix of (b-e)x(a-e) and change the
* package configuration on that:
*
* b c d e
* a x x x x
* b x x x x
* c o x x x where o means "not legal"
* d o x x x
* e o x x x
*/
import java.util.List;
import java.util.LinkedList;
import java.lang.reflect.Field;
import common.TestMe;
public class EnclosingClassTest {
static void info(Class<?> c, Class<?> encClass, String desc) {
if (!"".equals(desc))
System.out.println(desc + ":");
System.out.println(c);
System.out.println("\tis enclosed by:\t\t" + encClass);
System.out.println("\thas simple name:\t`" +
c.getSimpleName() + "'");
System.out.println("\thas canonical name:\t`" +
c.getCanonicalName() + "'");
}
static void match(String actual, String expected) {
assert((actual == null && expected == null) || actual.equals(expected));
System.out.println("\t`" +
actual + "' matches expected `" +
expected + "'");
}
static void check(Class<?> c, Class<?> enc,
String encName, String encNameExpected,
String simpleName, String simpleNameExpected,
String canonicalName, String canonicalNameExpected) {
match(encName, encNameExpected);
match(simpleName, simpleNameExpected);
match(canonicalName, canonicalNameExpected);
}
static void testClass(Class<?> c, TestMe annotation, Field f) {
if (Void.class.equals(c))
return;
Class<?> encClass = c.getEnclosingClass();
c.getEnclosingMethod(); // make sure it does not crash
c.getEnclosingConstructor(); // make sure it does not crash
info(c, encClass, annotation.desc());
check(c, encClass,
""+encClass, annotation.encl(),
c.getSimpleName(), annotation.simple(),
c.getCanonicalName(),
annotation.hasCanonical() ? annotation.canonical() : null);
if (void.class.equals(c))
return;
Class<?> array = java.lang.reflect.Array.newInstance(c, 0).getClass();
check(array, array.getEnclosingClass(),
"", "",
array.getSimpleName(), annotation.simple()+"[]",
array.getCanonicalName(),
annotation.hasCanonical() ? annotation.canonical()+"[]" : null);
}
static void test(Object tests) {
for (Field f : tests.getClass().getFields()) {
TestMe annotation = f.getAnnotation(TestMe.class);
if (annotation != null) {
try {
testClass((Class<?>)f.get(tests), annotation, f);
} catch (AssertionError ex) {
System.err.println("Error in " +
tests.getClass().getName() +
"." + f.getName());
throw ex;
} catch (IllegalAccessException ex) {
ex.printStackTrace();
throw new RuntimeException(ex);
}
}
}
}
public static void main(String[] args) {
test(new EnclosingClass());
test(new pkg1.EnclosingClass());
test(new pkg1.pkg2.EnclosingClass());
}
}
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