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/*
* Copyright (c) 2020, 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.
*/
import java.awt.EventQueue;
import java.util.ArrayList;
import java.util.Arrays;
import javax.swing.JPasswordField;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.GapContent;
import javax.swing.text.PlainDocument;
import javax.swing.text.Segment;
import javax.swing.text.StringContent;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.StyleSheet;
/**
* @test
* @bug 8258373
* @summary The JPasswordField#setText() should reset the old internal storage
*/
public final class CleanInternalStorageOnSetText {
public static void main(String[] args) throws Exception {
EventQueue.invokeAndWait(() -> {
// default case
testStorage(false, new JPasswordField());
testStorage(true, new JPasswordField());
// custom Plain String document
Document document = new PlainDocument(new StringContent());
testStorage(false, new JPasswordField(document, "", 10));
document = new PlainDocument(new StringContent());
testStorage(true, new JPasswordField(document, "", 10));
// custom Plain GAP document
document = new PlainDocument(new GapContent());
testStorage(false, new JPasswordField(document, "", 10));
document = new PlainDocument(new GapContent());
testStorage(true, new JPasswordField(document, "", 10));
// custom HTMLDocument String document
document = new HTMLDocument(new StringContent(), new StyleSheet());
testStorage(false, new JPasswordField(document, "", 10));
document = new HTMLDocument(new StringContent(), new StyleSheet());
testStorage(true, new JPasswordField(document, "", 10));
// custom HTMLDocument GAP document
document = new HTMLDocument(new GapContent(), new StyleSheet());
testStorage(false, new JPasswordField(document, "", 10));
document = new HTMLDocument(new GapContent(), new StyleSheet());
testStorage(true, new JPasswordField(document, "", 10));
});
}
private static void testStorage(boolean makeGap, JPasswordField pf) {
test(pf, "123", makeGap);
test(pf, "1234567", makeGap);
test(pf, "1234567890", makeGap);
test(pf, "1".repeat(100), makeGap);
test(pf, "1234567890", makeGap);
test(pf, "1234567", makeGap);
test(pf, "123", makeGap);
test(pf, "", makeGap);
}
private static void test(JPasswordField pf, String text, boolean makeGap) {
pf.setText(text);
if (makeGap && text.length() > 3) {
try {
pf.getDocument().remove(1, 2);
} catch (BadLocationException e) {
throw new RuntimeException(e);
}
}
// if no gaps we can check whole array
char[] internalArray = getInternalArray(pf);
ArrayList<Segment> segments = new ArrayList<>();
if (makeGap) {
// if gaps exists we can check only part of the array
Document doc = pf.getDocument();
int nleft = doc.getLength();
Segment sgm = new Segment();
sgm.setPartialReturn(true);
int offs = 0;
try {
while (nleft > 0) {
doc.getText(offs, nleft, sgm);
segments.add(sgm);
nleft -= sgm.count;
offs += sgm.count;
}
} catch (BadLocationException e) {
throw new RuntimeException(e);
}
}
System.err.println("Before = " + Arrays.toString(internalArray));
pf.setText("");
System.err.println("After = " + Arrays.toString(internalArray));
if (!makeGap) {
for (char c : internalArray) {
if (c != '\u0000' && c != '\n') {
throw new RuntimeException(Arrays.toString(internalArray));
}
}
} else {
for (Segment sgm : segments) {
for (int i = sgm.offset; i < sgm.count + sgm.offset; i++) {
char c = sgm.array[i];
if (c != '\u0000' && c != '\n') {
throw new RuntimeException(Arrays.toString(sgm.array));
}
}
}
}
}
/**
* This method returns the reference to the internal data stored by the
* document inside JPasswordField.
*/
private static char[] getInternalArray(JPasswordField pf) {
Document doc = pf.getDocument();
int nleft = doc.getLength();
Segment text = new Segment();
int offs = 0;
text.setPartialReturn(true);
try {
doc.getText(offs, nleft, text);
} catch (BadLocationException e) {
throw new RuntimeException(e);
}
return text.array;
}
}
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