diff options
Diffstat (limited to 'tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug182598_GTK_crash_set_item_count_in_SetData_callback.java')
| -rw-r--r-- | tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug182598_GTK_crash_set_item_count_in_SetData_callback.java | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug182598_GTK_crash_set_item_count_in_SetData_callback.java b/tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug182598_GTK_crash_set_item_count_in_SetData_callback.java new file mode 100644 index 0000000000..aefbd4a928 --- /dev/null +++ b/tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug182598_GTK_crash_set_item_count_in_SetData_callback.java @@ -0,0 +1,81 @@ +/******************************************************************************* + * Copyright (c) 2018 Simeon Andreev and others. + * + * This program and the accompanying materials + * are made available under the terms of the Eclipse Public License 2.0 + * which accompanies this distribution, and is available at + * https://www.eclipse.org/legal/epl-2.0/ + * + * SPDX-License-Identifier: EPL-2.0 + * + * Contributors: + * Simeon Andreev - initial API and implementation + *******************************************************************************/ +package org.eclipse.swt.tests.gtk.snippets; +import org.eclipse.swt.SWT; +import org.eclipse.swt.events.SelectionEvent; +import org.eclipse.swt.events.SelectionListener; +import org.eclipse.swt.layout.FillLayout; +import org.eclipse.swt.widgets.Button; +import org.eclipse.swt.widgets.Display; +import org.eclipse.swt.widgets.Shell; +import org.eclipse.swt.widgets.Tree; +import org.eclipse.swt.widgets.TreeItem; + +public class Bug182598_GTK_crash_set_item_count_in_SetData_callback { + + // If we want to have a Java dump on crash, we need to set a different number of tree items on SWT.SetData callback. + // I.e. =false -> reproduce https://bugs.eclipse.org/bugs/show_bug.cgi?id=182598 + // =true -> reproduce https://bugs.eclipse.org/bugs/show_bug.cgi?id=545919 + private static final boolean CRASH_WITH_DUMP = false; + + public static void main(String[] args) { + + Display display = new Display(); + Shell shell = new Shell(display); + shell.setSize(300, 200); + shell.setLayout(new FillLayout()); + + final Tree tree = new Tree(shell, SWT.VIRTUAL); + tree.addListener(SWT.SetData, event -> { + int itemCount = CRASH_WITH_DUMP ? 0 : 1; + // JVM will crash now without the patch for bug 182598 + tree.setItemCount(itemCount); + }); + + // NB: Sometimes this N must be changed to crash reliably - in range from 5 to 20 + int N = 15; + for (int i = 0; i < N; ++i) { + TreeItem item = new TreeItem(tree, SWT.NONE); + int c = i + 1; + item.setText("item " + c); + if (i >= 5) { + item.setText("another item " + c); + } + item.setData("something " + c); + tree.setSelection(item); + } + + Button button = new Button(shell, SWT.NONE); + button.setText("Tree.clearAll()"); + button.addSelectionListener(new SelectionListener() { + @Override + public void widgetSelected(SelectionEvent e) { + tree.clearAll(true); + } + + @Override + public void widgetDefaultSelected(SelectionEvent e) { + } + }); + + shell.open(); + + while (!shell.isDisposed()) { + if (!display.readAndDispatch()) { + display.sleep(); + } + } + display.dispose(); + } +}
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