| Summary: | While reading .docx(of more than 10mb) file with Apache POI its throwing OutOfMemory error | ||
|---|---|---|---|
| Product: | POI | Reporter: | Ajeet Singh <ajeet.singh> |
| Component: | XWPF | Assignee: | POI Developers List <dev> |
| Status: | RESOLVED INVALID | ||
| Severity: | major | ||
| Priority: | P2 | ||
| Version: | 3.10-FINAL | ||
| Target Milestone: | --- | ||
| Hardware: | PC | ||
| OS: | All | ||
The default JVM heap size is very very small by modern standards. You need to increase that at JVM startup (-Xmx) to something more sensible before handling larger files |
I am using apche POI-3.10, I have to read an sample.docx file and write its content to new sampleOutput.docx file. However I have succeed to do the same but while reading file’s more than or equal to 10mb in size, XWPFDocument is not able to read the file, its throwing error “java.lang.OutOfMemoryError: Java heap space” Following is the sample code for the reference, Request you to help me with any solution try { FileInputStream fis = new FileInputStream(“sample.docx”); XWPFDocument document = new XWPFDocument(OPCPackage.open(inputFilePath)); // its throws error here with files of size >= 10 mb OutputStream outStream = new FileOutputStream(outputFilePath); document. write(outStream); }catch(Exception e){ e.printStackTrace(); }