Unable to save document- Words 24.8

Aspose.Words Product Family
1

Hi Team,

I attempted to save a document using the following code, but it encountered an exception. How can I effectively handle this exception? Please provide guidance.

Document document = new Document("Input.docx");
document.save("output.docx", SaveFormat.DOCX);

Exception:

Exception in thread “main” java.lang.NullPointerException: Cannot read the array length because “<parameter1>” is null
at com.aspose.words.zzWH.zzXsO(Unknown Source)
at com.aspose.words.zzZPU.zzZl5(Unknown Source)
at com.aspose.words.zzYhB.zzXsO(Unknown Source)
at com.aspose.words.zzYbs.visitShapeStart(Unknown Source)
at com.aspose.words.Shape.acceptStart(Unknown Source)
at com.aspose.words.CompositeNode.acceptCore(Unknown Source)
at com.aspose.words.Shape.accept(Unknown Source)
at com.aspose.words.CompositeNode.acceptChildren(Unknown Source)
at com.aspose.words.CompositeNode.acceptCore(Unknown Source)
at com.aspose.words.GroupShape.accept(Unknown Source)
at com.aspose.words.CompositeNode.acceptChildren(Unknown Source)
at com.aspose.words.CompositeNode.acceptCore(Unknown Source)
at com.aspose.words.GroupShape.accept(Unknown Source)
at com.aspose.words.CompositeNode.acceptChildren(Unknown Source)
at com.aspose.words.CompositeNode.acceptCore(Unknown Source)
at com.aspose.words.GroupShape.accept(Unknown Source)
at com.aspose.words.CompositeNode.acceptChildren(Unknown Source)
at com.aspose.words.CompositeNode.acceptCore(Unknown Source)
at com.aspose.words.GroupShape.accept(Unknown Source)
at com.aspose.words.CompositeNode.acceptChildren(Unknown Source)
at com.aspose.words.CompositeNode.acceptCore(Unknown Source)
at com.aspose.words.GroupShape.accept(Unknown Source)
at com.aspose.words.CompositeNode.acceptChildren(Unknown Source)
at com.aspose.words.CompositeNode.acceptCore(Unknown Source)
at com.aspose.words.GroupShape.accept(Unknown Source)
at com.aspose.words.CompositeNode.acceptChildren(Unknown Source)
at com.aspose.words.CompositeNode.acceptCore(Unknown Source)
at com.aspose.words.GroupShape.accept(Unknown Source)
at com.aspose.words.zzYbs.zzJc(Unknown Source)
at com.aspose.words.zzYbs.zzYBZ(Unknown Source)
at com.aspose.words.zzYbs.visitGroupShapeEnd(Unknown Source)
at com.aspose.words.GroupShape.acceptEnd(Unknown Source)
at com.aspose.words.CompositeNode.acceptCore(Unknown Source)
at com.aspose.words.GroupShape.accept(Unknown Source)
at com.aspose.words.CompositeNode.acceptChildren(Unknown Source)
at com.aspose.words.CompositeNode.acceptCore(Unknown Source)
at com.aspose.words.Paragraph.accept(Unknown Source)
at com.aspose.words.CompositeNode.acceptChildren(Unknown Source)
at com.aspose.words.CompositeNode.acceptCore(Unknown Source)
at com.aspose.words.Body.accept(Unknown Source)
at com.aspose.words.zzYbs.zzXQ4(Unknown Source)
at com.aspose.words.zzWvx.zzXEG(Unknown Source)
at com.aspose.words.zzWvx.zzSL(Unknown Source)
at com.aspose.words.zzYbs.zzYP5(Unknown Source)
at com.aspose.words.zzX1R.zzXz8(Unknown Source)
at com.aspose.words.zzX1R.zzXsO(Unknown Source)
at com.aspose.words.zzW68.zzXsO(Unknown Source)
at com.aspose.words.Document.zzVQb(Unknown Source)
at com.aspose.words.Document.zzXsO(Unknown Source)
at com.aspose.words.Document.save(Unknown Source)
at com.aspose.words.Document.save(Unknown Source)

Regards,
Mahi

2

@Mahi39 Could you please attach the problematic input document here for testing? We will check the issue and provide you more information.

3

@Mahi39

It seems that you are encountering a NullPointerException when trying to save a document using Aspose.Words. This type of exception typically indicates that there is an attempt to access an object or variable that has not been initialized.

Here are some steps you can take to effectively handle this exception:

  1. Check Document Initialization: Ensure that the document is being loaded correctly. Verify that the file path “Input.docx” is correct and that the file exists. If the file is not found, the Document object may not be initialized properly.

  2. Exception Handling: Implement try-catch blocks around your code to catch exceptions and handle them gracefully. This will allow you to log the error or provide a user-friendly message.

    Here’s an example of how you can implement this:

    try {
    Document document = new Document("Input.docx");
    document.save("output.docx", SaveFormat.DOCX);
} catch (NullPointerException e) {
    System.err.println("A null pointer exception occurred: " + e.getMessage());
    // Additional logging or handling can be done here
} catch (Exception e) {
    System.err.println("An error occurred: " + e.getMessage());
    // Handle other exceptions
}

  3. Inspect Document Content: If the document is loaded but contains elements that are not supported or are corrupted, it may lead to exceptions during processing. Try opening the document in Microsoft Word to check for any issues.

  4. Update Aspose.Words: Ensure that you are using the latest version of Aspose.Words, as updates may contain bug fixes and improvements that could resolve your issue.

  5. Consult Documentation: Review the Aspose.Words documentation for any specific requirements or limitations regarding the document formats you are working with.

By following these steps, you should be able to identify the cause of the NullPointerException and handle it appropriately. If the issue persists, consider reaching out to Aspose support with detailed information about the document and the code you are using.

If you have any further questions or need additional assistance, feel free to ask!