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improve exception handling
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1910273 13f79535-47bb-0310-9956-ffa450edef68
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@ -173,6 +173,9 @@ public class OOXMLSignatureFacet implements SignatureFacet {
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try {
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PackagePartName relName = PackagingURIHelper.createPartName(partName);
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PackagePart pp2 = opcPackage.getPart(relName);
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if (pp2 == null) {
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throw new XMLSignatureException("Failed to find part " + relName);
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}
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contentType = pp2.getContentType();
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} catch (InvalidFormatException e) {
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throw new XMLSignatureException(e);
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