java.lang.ArrayIndexOutOfBoundsException when getting a gif

[yellowpeter2019]

@danfickle
I tried to convert the html into an image.

When I encountered a gif on the html code, the program threw an exception like this

com.openhtmltopdf.general: INFO: java.lang.ArrayIndexOutOfBoundsException: 4096
	at com.sun.imageio.plugins.gif.GIFImageReader.read(GIFImageReader.java:984)
	at javax.imageio.ImageIO.read(ImageIO.java:1448)
	at javax.imageio.ImageIO.read(ImageIO.java:1352)
	at com.openhtmltopdf.swing.NaiveUserAgent.getImageResource(NaiveUserAgent.java:412)
	at com.openhtmltopdf.render.AbstractOutputDevice.getBackgroundImage(AbstractOutputDevice.java:204)
	at com.openhtmltopdf.render.AbstractOutputDevice.paintBackground0(AbstractOutputDevice.java:238)
	at com.openhtmltopdf.render.AbstractOutputDevice.paintBackground(AbstractOutputDevice.java:226)
	at com.openhtmltopdf.render.Box.paintBackground(Box.java:536)
	at com.openhtmltopdf.layout.Layer.paintBackgroundsAndBorders(Layer.java:322)
	at com.openhtmltopdf.layout.Layer.paint(Layer.java:416)
	at com.openhtmltopdf.layout.Layer.paintLayers(Layer.java:225)
	at com.openhtmltopdf.layout.Layer.paint(Layer.java:424)
	at com.openhtmltopdf.java2d.Java2DRenderer.writeSinglePage(Java2DRenderer.java:352)
	at com.openhtmltopdf.java2d.api.Java2DRendererBuilder.runFirstPage(Java2DRendererBuilder.java:139)

The gif:

html code:

<div class="game-icon">
    <div class="game-icon-wrapper" style="background-image: url(${gameIconUrl!''})"></div>
</div>

Java code:

Java2DRendererBuilder builder = new Java2DRendererBuilder();
builder.withHtmlContent(html, "file:///E:/tmp/");
builder.useDefaultPageSize(IMG_WIDTH / 72F, IMG_HEIGHT / 72F, Java2DRendererBuilder.PageSizeUnits.INCHES);
BufferedImagePageProcessor processor = new BufferedImagePageProcessor(BufferedImage.TYPE_INT_RGB, 1.0);

builder.toSinglePage(processor).runFirstPage();
BufferedImage image = processor.getPageImages().get(0);

Is this an issue? or am I doing something terribly wrong?
Waiting for your response.
Thx.

[syjer]

hi @yellowpeter2019 , it seems that it's a known bug in the java runtime, see the following issue https://bugs.openjdk.java.net/browse/JDK-7132728 .

I can reproduce your error by simply doing

import javax.imageio.ImageIO;
import java.io.File;
import java.io.IOException;

public class TestImg {
    public static void main(String[] args) throws IOException {
        ImageIO.read(new File("a.gif")); //a.gif is https://user-images.githubusercontent.com/46878699/51895370-ef8cab80-23e4-11e9-9948-55d66fe18d2f.gif
    }
}

It will launch the following exception:

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index 4096 out of bounds for length 4096
	at java.desktop/com.sun.imageio.plugins.gif.GIFImageReader.read(GIFImageReader.java:992)
	at java.desktop/javax.imageio.ImageIO.read(ImageIO.java:1468)
	at java.desktop/javax.imageio.ImageIO.read(ImageIO.java:1315)

(and I'm using the latest stable jdk

java -version
openjdk version "11.0.1" 2018-10-16
OpenJDK Runtime Environment 18.9 (build 11.0.1+13)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.1+13, mixed mode, sharing)

)

So at the moment, I would advise to avoid animated gif as a source...

[yellowpeter2019]

hi @yellowpeter2019 , it seems that it's a known bug in the java runtime, see the following issue https://bugs.openjdk.java.net/browse/JDK-7132728 .

I can reproduce your error by simply doing

import javax.imageio.ImageIO;
import java.io.File;
import java.io.IOException;

public class TestImg {
    public static void main(String[] args) throws IOException {
        ImageIO.read(new File("a.gif")); //a.gif is https://user-images.githubusercontent.com/46878699/51895370-ef8cab80-23e4-11e9-9948-55d66fe18d2f.gif
    }
}

It will launch the following exception:

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index 4096 out of bounds for length 4096
	at java.desktop/com.sun.imageio.plugins.gif.GIFImageReader.read(GIFImageReader.java:992)
	at java.desktop/javax.imageio.ImageIO.read(ImageIO.java:1468)
	at java.desktop/javax.imageio.ImageIO.read(ImageIO.java:1315)

(and I'm using the latest stable jdk

java -version
openjdk version "11.0.1" 2018-10-16
OpenJDK Runtime Environment 18.9 (build 11.0.1+13)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.1+13, mixed mode, sharing)

)

So at the moment, I would advise to avoid animated gif as a source...

@syjer
Could you consider changing the gif image processing library?
For example: https://github.com/DhyanB/Open-Imaging

It seems to solve this problem.

[danfickle]

Hi @yellowpeter2019,

Being able to provide a BufferedImage is on my internal road map, but not until after next release, otherwise it will never be released!

In the mean time you could resave the desired frame as a png to a byte stream and use that as a workaround.