Getting CRC value -1 on Unzip

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posted 13 years ago

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Hi..
I have zipped few files and have set each ZipEntry's crc value to updated CRC with the corresponding file's checksum and I have logged those values.
But, If I unzip the zipped file and print the CRC for each zip entry, all are having value "-1".

Nothing has been changed in the zip file.

Can some one please brief what might be the reason?

Thanks,

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