jdk-24/test/jdk/java/awt/dnd/DragSourceGCrashTest.java
Alexander Zvegintsev 2adb3b409e 8306943: Open source several dnd AWT tests
Reviewed-by: prr, serb
2023-05-04 15:39:08 +00:00

294 lines
9.7 KiB
Java

/*
* Copyright (c) 2003, 2023, 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 4888520
@summary tests that drag source application invoked via debug java does not
crash on exit after drop on other Java drop target application
@key headful
*/
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.Panel;
import java.awt.Point;
import java.awt.Robot;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DragGestureEvent;
import java.awt.dnd.DragGestureListener;
import java.awt.dnd.DragSource;
import java.awt.dnd.DragSourceAdapter;
import java.awt.dnd.DragSourceDropEvent;
import java.awt.dnd.DragSourceListener;
import java.awt.dnd.DropTarget;
import java.awt.dnd.DropTargetAdapter;
import java.awt.dnd.DropTargetDropEvent;
import java.awt.dnd.DropTargetListener;
import java.awt.event.InputEvent;
import java.io.File;
import java.io.InputStream;
import java.io.Reader;
public class DragSourceGCrashTest {
volatile Frame frame;
volatile Panel panel;
public static void main(String[] args) throws Exception {
DragSourceGCrashTest test = new DragSourceGCrashTest();
EventQueue.invokeAndWait(test::init);
try {
test.start();
} finally {
EventQueue.invokeAndWait(()-> test.frame.dispose());
}
}
public void init() {
frame = new Frame("target - DragSourceGCrashTest");
panel = new Panel();
frame.add(panel);
frame.setBounds(100, 100, 100, 100);
DropTargetListener dtl = new DropTargetAdapter() {
public void drop(DropTargetDropEvent dtde) {
dtde.acceptDrop(DnDConstants.ACTION_MOVE);
Transferable t = dtde.getTransferable();
try {
DataFlavor df = new DataFlavor(
"text/plain;class=java.io.Reader");
Reader r = df.getReaderForText(t);
// To verify the bug do not close the reader!
dtde.dropComplete(true);
} catch (Exception e) {
e.printStackTrace();
dtde.dropComplete(false);
}
}
};
new DropTarget(frame, dtl);
frame.setVisible(true);
}
public void start() throws Exception {
Robot robot = new Robot();
robot.waitForIdle();
robot.delay(1000);
ProcessResults pres = null;
Point endPoint = panel.getLocationOnScreen();
endPoint.translate(panel.getWidth() / 2, panel.getHeight() / 2);
String jdkPath = System.getProperty("java.home");
String javaPath = jdkPath + File.separator + "bin" +
File.separator + "java";
String[] cmd = {
javaPath, "-cp",
System.getProperty("test.classes", "."),
"Child",
String.valueOf(endPoint.x),
String.valueOf(endPoint.y)
};
Process process = Runtime.getRuntime().exec(cmd);
pres = ProcessResults.doWaitFor(process);
if (pres.stderr != null && pres.stderr.length() > 0) {
System.err.println("========= Child VM System.err ========");
System.err.print(pres.stderr);
System.err.println("======================================");
}
if (pres.stdout != null && pres.stdout.length() > 0) {
System.err.println("========= Child VM System.out ========");
System.err.print(pres.stdout);
System.err.println("======================================");
}
if (pres.exitValue != 0) {
throw new RuntimeException("FAILURE: child java exited " +
"with code " + pres.exitValue);
}
}
}
class Child {
volatile Frame frame;
volatile Panel panel;
public static void main(String[] args) throws Exception {
int endX = Integer.parseInt(args[0]);
int endY = Integer.parseInt(args[1]);
Point endPoint = new Point(endX, endY);
Child child = new Child();
EventQueue.invokeAndWait(child::init);
try {
child.start(endPoint);
} finally {
EventQueue.invokeAndWait(() -> child.frame.dispose());
}
}
public void init() {
frame = new Frame("source - DragSourceGCrashTest");
panel = new Panel();
frame.add(panel);
frame.setBounds(200, 100, 100, 100);
final DragSourceListener dsl = new DragSourceAdapter() {
public void dragDropEnd(DragSourceDropEvent dsde) {
System.err.println("DragSourceListener.dragDropEnd(): " +
"exiting application");
System.exit(0);
}
};
DragGestureListener dgl = new DragGestureListener() {
public void dragGestureRecognized(DragGestureEvent dge) {
dge.startDrag(null,
new StringSelection("test"), dsl);
}
};
new DragSource().createDefaultDragGestureRecognizer(panel,
DnDConstants.ACTION_MOVE, dgl);
frame.setVisible(true);
}
public void start(Point endPoint) throws Exception {
Robot robot = new Robot();
robot.waitForIdle();
robot.delay(1000);
Point startPoint = panel.getLocationOnScreen();
startPoint.translate(
panel.getWidth() / 2,
panel.getHeight() / 2
);
robot.mouseMove(startPoint.x, startPoint.y);
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
for (Point p = new Point(startPoint); !p.equals(endPoint);
p.translate(
Integer.compare(endPoint.x - p.x, 0),
Integer.compare(endPoint.y - p.y, 0)
)) {
robot.mouseMove(p.x, p.y);
robot.delay(50);
}
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
long timeout = 30000;
Object LOCK = new Object();
synchronized (LOCK) {
LOCK.wait(timeout);
System.err.println(System.currentTimeMillis() + " end");
}
System.err.println("WARNING: drop has not ended within " + timeout +
" ms, exiting application!");
System.exit(0);
}
}
class ProcessResults {
final static long TIMEOUT = 60000;
public int exitValue;
public String stdout;
public String stderr;
public ProcessResults() {
exitValue = -1;
stdout = "";
stderr = "";
}
/**
* Method to perform a "wait" for a process and return its exit value.
* This is a workaround for <code>Process.waitFor()</code> never returning.
*/
public static ProcessResults doWaitFor(Process p) {
ProcessResults pres = new ProcessResults();
InputStream in = null;
InputStream err = null;
long startTime = System.currentTimeMillis();
try {
in = p.getInputStream();
err = p.getErrorStream();
boolean finished = false;
while (!finished) {
try {
while (in.available() > 0) {
pres.stdout += (char)in.read();
}
while (err.available() > 0) {
pres.stderr += (char)err.read();
}
// Ask the process for its exitValue. If the process
// is not finished, an IllegalThreadStateException
// is thrown. If it is finished, we fall through and
// the variable finished is set to true.
pres.exitValue = p.exitValue();
finished = true;
}
catch (IllegalThreadStateException e) {
if (System.currentTimeMillis() > startTime + TIMEOUT) {
System.err.println("WARNING: child process has not " +
"exited within " + TIMEOUT + " ms, returning" +
" from ProcessResults.doWaitFor()");
pres.exitValue = 0;
return pres;
}
// Process is not finished yet;
// Sleep a little to save on CPU cycles
Thread.currentThread().sleep(500);
}
}
if (in != null) in.close();
if (err != null) err.close();
}
catch (Throwable e) {
System.err.println("doWaitFor(): unexpected exception");
e.printStackTrace();
}
return pres;
}
}