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java.lang.NullPointerException
	at net.jxta.impl.discovery.DiscoveryServiceImpl.search(DiscoveryServiceImpl.java:1296)
	at net.jxta.impl.discovery.DiscoveryServiceImpl.getLocalAdvertisements(DiscoveryServiceImpl.java:439)
	at net.jxta.impl.discovery.DiscoveryServiceInterface.getLocalAdvertisements(DiscoveryServiceInterface.java:163)
	at com.shsolutions.pts.util.PTSUtil.getCacheAdvertisements(PTSUtil.java:138)


# my method calling jxta method:
Enumeration enVal = dsvc.getLocalAdvertisements( nDSType, szKey, szValue );

# my values passing to jxta method
nDSType = 2
attribute = "Name"
value = "rsmith"