8242883: Incomplete backport of JDK-8078268: backport test part

Reviewed-by: phh, andrew

test/javax/swing/text/html/parser/Parser/8078268/bug8078268.java

+/*
+* Copyright (c) 2016, 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.io.File;
+import java.io.FileReader;
+import javax.swing.SwingUtilities;
+import javax.swing.text.Document;
+import javax.swing.text.html.HTMLEditorKit;
+
+/* @test
+   @bug 8078268
+   @summary  javax.swing.text.html.parser.Parser parseScript incorrectly optimized
+   @author Mikhail Cherkasov
+   @run main bug8078268
+*/
+public class bug8078268 {
+    static volatile boolean parsingDone = false;
+    static volatile Exception exception;
+
+    public static void main(String[] args) throws Exception {
+        long s = System.currentTimeMillis();
+        SwingUtilities.invokeLater(new Runnable() {
+            @Override
+            public void run() {
+                HTMLEditorKit htmlKit = new HTMLEditorKit();
+                Document doc = htmlKit.createDefaultDocument();
+                try {
+                    htmlKit.read(new FileReader(getDirURL() + "slowparse.html"), doc, 0);
+                    parsingDone = true;
+                } catch (Exception e) {
+                    exception = e;
+                }
+            }
+        });
+        while (!parsingDone && exception == null && System.currentTimeMillis() - s < 5_000) {
+            Thread.sleep(200);
+        }
+        final long took = System.currentTimeMillis() - s;
+        if (exception != null) {
+            throw exception;
+        }
+        if (took > 5_000) {
+            throw new RuntimeException("Parsing takes too long.");
+        }
+    }
+
+    static String getDirURL() {
+        return new File(System.getProperty("test.src", ".")).getAbsolutePath() +
+                File.separator;
+    }
+}