After more investigation, the problems were coming from trying to run the
upload in a separate thread.
Once I move the code back into the main thread where the onSubmit is pressed
it all works fine.
Is it possible to have the upload process take place in a separate thread,
so the user can continue working while the upload takes place?
Andrew Moore wrote:
>
> Just to follow this up. When using the inputstream and the read() method
> on the same upload file. The number of lines read before getting in error
> message changes each time. Could it be a jdk bug?
>
>
> Andrew Moore wrote:
>>
>> I'm using wicket 1.3.4 and doing some file uploading and keep
>> intermittantly getting the following error:
>> IOException: The handle is invalid.
>>
>> My form is uploads zips and jpgs and is very similar to the wicket
>> examples.
>> ie in my submit button I do the following:
>>
>> if (uploadFile != null) {
>> // Check new file, delete if it already existed
>> imageProcessing.deleteFileIfExists(uploadFolder + File.separator +
>> uploadFile.getClientFileName());
>> // Create a new file
>> File newFile = new File(uploadFolder, uploadFile.getClientFileName());
>> try {
>> // Save to new file
>> newFile.createNewFile();
>> uploadFile.writeTo(newFile);
>> }...
>>
>>
>> It's the writeTo line that causes the error. Some jpgs and zips work
>> fine, others don't or only intermittantly work. An example image I'm
>> having errors with is this one:
>> http://transfer.folioflow.com.s3.amazonaws.com/08092007045.jpg
>>
>> I've tried using the getInputStream() instead of the writeTo, and tried
>> writing the inputstream into an output stream, but get exactly the same
>> error while doing an inputstream.read();
>>
>> I'm at a bit of a loss to what could be causing this.
>>
>>
>>
>
>
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