NullPointerException on calling shape.getImageData().getImageType() Java Aspose.Words 24.4

Aspose.Words Product Family
1

Recently upgraded from words 22.7 to 24.4 and started receiving an exception when calling shape.getImageData().getImageType() on a word document. I verified rolling back to 22.7 the issue is no longer present.

java.lang.NullPointerException: Cannot invoke "String.indexOf(String)" because "<parameter1>" is null
	at com.aspose.words.internal.zzWkY.zzH(Unknown Source)
	at com.aspose.words.internal.zzWkY.zzY62(Unknown Source)
	at com.aspose.words.internal.zzYLj.zz0B(Unknown Source)
	at com.aspose.words.internal.zzYLj.zzWzE(Unknown Source)
	at com.aspose.words.internal.zzYLj.zzWUN(Unknown Source)
	at com.aspose.words.internal.zzYLj.zzYNC(Unknown Source)
	at com.aspose.words.zzXHy.zzYpJ(Unknown Source)
	at com.aspose.words.ImageData.getImageType(Unknown Source)
2

@cpost Could you please attach your input problematic document here for testing? We will check the issue and provide you more information.

3

Yeah, I tried to attach it here but didn’t see a good way since it’s not an image file.

Try this:
https://file.io/Y2r3QeQtAFBU

Never used this service before, I think it will be deleted after it’s downloaded once.

4

@cpost Thank you for additional information. Unfortunately, I cannot reproduce the problem using the following simple code:

Document doc = new Document("C:\\Temp\\in.doc");
for (Shape s : (Iterable<Shape>)doc.getChildNodes(NodeType.SHAPE, true))
{
    if (s.hasImage())
        System.out.println(s.getImageData().getImageType());
}

PS: You can zip and attach document directly in the forum.

5

I should have thought to zip it :slight_smile:

BET.PC.00071840.0.zip (4.5 KB)

I believe this is the relevant bits from our code:

Document doc = AsposeCommon.geAsposeWordDocument(filePath.toString());
NodeCollection shapes = doc.getChildNodes(NodeType.SHAPE, true);

for (int i = 0; i < shapes.getCount();  i++) {
	Shape shape = (Shape) shapes.get(i);
	
	if (shape.isImage()) {
		String extension = shape.getImageData().getImageType() != ImageType.UNKNOWN ? FileFormatUtil.imageTypeToExtension(shape.getImageData().getImageType()) : ".unknown";
	}
}
6

@cpost Thank you for additional information. Unfortunately, the problem is still not reproducible on my side. The provided code works fine and does not throw any exceptions.

7

Stepping through it (minified) it looks like the issue is in this method:

967×596 47 KB

Probably just need to be a little more defensive here. Hopefully there’s enough un-minified code there to be able to locate it.

8

@cpost Unfortunately, we still cannot reproduce the problem on our side. Without ability to reproduce the problem we cannot analyze it. If possible please create a simple application that will allow us to reproduce the problem.

9

Well, I showed you what line your null pointer is happening on. For now I guess when I call getImageType() I’ll just have to wrap it with my own error handling and return ImageType.UNKNOWN.

10

@cpost Unfortunately, we cannot analyze the problem without ability to reproduce it on our side. As I have mentioned the problem does not happen with your document on my side.