4958064: JPGWriter does not throw UnsupportedException when canWriteSequence retuns false
Reviewed-by: prr, bae
--- a/jdk/src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/JPEGImageWriter.java Thu Feb 26 16:41:39 2015 +0300
+++ b/jdk/src/java.desktop/share/classes/com/sun/imageio/plugins/jpeg/JPEGImageWriter.java Fri Feb 27 01:06:39 2015 +0300
@@ -1104,6 +1104,11 @@
currentImage++; // After a successful write
}
+ @Override
+ public boolean canWriteSequence() {
+ return true;
+ }
+
public void prepareWriteSequence(IIOMetadata streamMetadata)
throws IOException {
setThreadLock();
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/imageio/plugins/shared/CanWriteSequence.java Fri Feb 27 01:06:39 2015 +0300
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2015, 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.FileOutputStream;
+import java.util.Iterator;
+
+import javax.imageio.ImageIO;
+import javax.imageio.ImageWriter;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.spi.IIORegistry;
+import javax.imageio.spi.ImageWriterSpi;
+import javax.imageio.stream.ImageOutputStream;
+
+/**
+ * @test
+ * @bug 4958064
+ * @author Sergey Bylokhov
+ */
+public final class CanWriteSequence {
+
+ public static void main(final String[] args) throws Exception {
+ final IIORegistry registry = IIORegistry.getDefaultInstance();
+ final Iterator<ImageWriterSpi> iter =
+ registry.getServiceProviders(ImageWriterSpi.class,
+ provider -> true, true);
+ // Validates all supported ImageWriters
+ while (iter.hasNext()) {
+ final ImageWriter writer = iter.next().createWriterInstance();
+ System.out.println("ImageWriter = " + writer);
+ test(writer);
+ }
+ System.out.println("Test passed");
+ }
+
+ private static void test(final ImageWriter writer) throws Exception {
+ final File file = File.createTempFile("temp", ".img");
+ file.deleteOnExit();
+ final FileOutputStream fos = new FileOutputStream(file);
+ final ImageOutputStream ios = ImageIO.createImageOutputStream(fos);
+ writer.setOutput(ios);
+ final IIOMetadata data = writer.getDefaultStreamMetadata(null);
+
+ if (writer.canWriteSequence()) {
+ writer.prepareWriteSequence(data);
+ } else {
+ try {
+ writer.prepareWriteSequence(data);
+ throw new RuntimeException(
+ "UnsupportedOperationException was not thrown");
+ } catch (final UnsupportedOperationException ignored) {
+ // expected
+ }
+ }
+ writer.dispose();
+ ios.close();
+ }
+}
\ No newline at end of file