Petascope don't throw exception from SECORE when it shoud not

[Bang Pham Huu]

For example when it tries to request to resolve an UOM href to SECORE and the result is not in XML, then it can ignore it instead of throw exception

DEBUG [11:10:19] CrsUtil@545: Error while building the document from URL 'http://www.opengis.net/def/uom/UCUM/0/d' 

petascope.exceptions.PetascopeException: Error while building XML document 'null'. error 'White spaces are required between publicId and systemId.', line '2', column '49'. at petascope.util.XMLUtil.buildDocument(XMLUtil.java:283) 

at petascope.util.CrsUtil.crsDefUrlToDocument(CrsUtil.java:542)
at petascope.util.CrsUtil.crsDefUrlToXml(CrsUtil.java:485)
at petascope.util.CrsUtil.getCrsDefinition(CrsUtil.java:371)
at org.rasdaman.migration.domain.legacy.LegacyDbMetadataSource.read(LegacyDbMetadataSource.java:996) at org.rasdaman.migration.domain.legacy.LegacyWcs