Null pointer Excepton: org.opensaml.xml.signature.SignatureValidator.buildSignature

[Keith Kenneth]

Hello,

I am very new to this.

I am using firefox and SAML tracer to watch the transactions with the
idp and sp for my java web app running on tomcat. I can see a
successful assertion come back to my sp from the idp, but then when
the sp is processing I see the nullPointerException below.

 Can you please recommend ways to troubleshoot? and/or suggest possible causes?

java.lang.NullPointerException

	org.opensaml.xml.signature.SignatureValidator.buildSignature(SignatureValidator.java:92)
	org.opensaml.xml.signature.SignatureValidator.validate(SignatureValidator.java:56)
	com.lastpass.saml.SAMLClient.validate(SAMLClient.java:171)


Ken
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