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*
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* 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
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*
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* 2 along with this work; if not, write to the Free Software Foundation,
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/* @test
@bug 4130097
@summary toUpperCase and toLowerCase always return a new String,
whereas if there is no conversion that needs to be done,
they should be returning the same instance.
@author James Bond/007
*/
public class CaseConvertSameInstance {
public static void main(String[] args) throws Exception {
/* these two are the real tests for this bug. */
if ("foobar".toLowerCase() != "foobar")
throw new Exception("toLowerCase returned different object");
if ("FOOBAR".toUpperCase() != "FOOBAR")
throw new Exception("toUpperCase returned different object");
/* sanity test toLowerCase with some border conditions. */
if (!("FooBar".toLowerCase().equals("foobar")))
throw new Exception("toLowerCase broken");
if (!("fooBar".toLowerCase().equals("foobar")))
throw new Exception("toLowerCase broken");
if (!("foobaR".toLowerCase().equals("foobar")))
throw new Exception("toLowerCase broken");
if (!("FOOBAR".toLowerCase().equals("foobar")))
throw new Exception("toLowerCase broken");
/* sanity test toUpperCase with some border conditions. */
if (!("FooBar".toUpperCase().equals("FOOBAR")))
throw new Exception("toUpperCase broken");
if (!("fooBar".toUpperCase().equals("FOOBAR")))
throw new Exception("toUpperCase broken");
if (!("foobaR".toUpperCase().equals("FOOBAR")))
throw new Exception("toUpperCase broken");
if (!("foobar".toUpperCase().equals("FOOBAR")))
throw new Exception("toUpperCase broken");
}
}