Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Oracle Community by 843797, 1 year ago
java.lang.NullPointerException: 	at java.util.Hashtable.access$100(Hashtable.java:90)	at java.util.Hashtable$EntrySet.iterator(Hashtable.java:592)	at java.util.Collections$SynchronizedCollection.iterator(Collections.java:1096)	at java.util.Hashtable.hashCode(Hashtable.java:728)	at java.util.Hashtable.get(Hashtable.java:315)	at mypackage.serializer.XMLSerializer.buildXML(XMLSerializer.java:205)	at mypackage.serializer.XMLSerializer.buildXML(XMLSerializer.java:178)	at mypackage.serializer.XMLSerializer.main(XMLSerializer.java:66)