Potential Resource Leak Error in Eclipse

I changed some lines  in my code from:

                                InputStream pdfInputStream = pdDoc.getContentStream().getStream();
				byte[] tiffFile = IOUtils.toByteArray(pdfInputStream);

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					byte[] tiffFile = IOUtils.toByteArray(pdDoc.getContentStream().getStream());

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I notice that got rid of a 'Potential Resource Leak Error' that was being thrown by eclipse.

(Note: Right now my eclipse is configured to throw  an error whenever such issues arise)

My questions are:
1) Why does that change correct the error?
2) When written as in the second code snippet, is it best practice to add the following snippet in the finally block?

			if (pdDoc.getContentStream().getStream()!=null) {

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1) Why does that change correct the error?

possibly because "pdDoc.getContentStream().getStream()" was still open. Could you test that?

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onaled777Author Commented:
Thanks Krakatoa.  Apparently the issue was due to the specifications in COMPILER_PB_POTENTIALLY_UNCLOSED_CLOSEABLE on which the Potential Resource Leak Error is Based.
Ah - you found that from the vendor presumably. Anyway, glad to hear 'fixed'.
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