Exception while unmarshalling Integer with an element bigger than 32-bit

[Maxime Gregoire]

Hello!
 
I am using OpenSAML 2.5.3 since its release, but recently I started
having the following exception:
java.lang.NumberFormatException: For input string: "2535285330239773"
                at
java.lang.NumberFormatException.forInputString(Unknown Source)
                at java.lang.Integer.parseInt(Unknown Source)
                at java.lang.Integer.valueOf(Unknown Source)
                at
org.opensaml.xml.schema.impl.XSIntegerUnmarshaller.processElementContent
(XSIntegerUnmarshaller.java:47)
                at
org.opensaml.xml.io.AbstractXMLObjectUnmarshaller.unmarshallTextContent(
AbstractXMLObjectUnmarshaller.java:351)
                at
org.opensaml.xml.io.AbstractXMLObjectUnmarshaller.unmarshall(AbstractXML
ObjectUnmarshaller.java:124)
                at
org.opensaml.xml.io.AbstractXMLObjectUnmarshaller.unmarshallChildElement
(AbstractXMLObjectUnmarshaller.java:335)
                at
org.opensaml.xml.io.AbstractXMLObjectUnmarshaller.unmarshall(AbstractXML
ObjectUnmarshaller.java:122)
                at
org.opensaml.xml.io.AbstractXMLObjectUnmarshaller.unmarshallChildElement
(AbstractXMLObjectUnmarshaller.java:335)
                at
org.opensaml.xml.io.AbstractXMLObjectUnmarshaller.unmarshall(AbstractXML
ObjectUnmarshaller.java:122)
                at
org.opensaml.xml.io.AbstractXMLObjectUnmarshaller.unmarshallChildElement
(AbstractXMLObjectUnmarshaller.java:335)
                at
org.opensaml.xml.io.AbstractXMLObjectUnmarshaller.unmarshall(AbstractXML
ObjectUnmarshaller.java:122)
                at
org.opensaml.xml.encryption.Decrypter.decryptDataToList(Decrypter.java:4
68)
                at
org.opensaml.xml.encryption.Decrypter.decryptData(Decrypter.java:401)
                at
org.opensaml.saml2.encryption.Decrypter.decryptData(Decrypter.java:141)
                at
org.opensaml.saml2.encryption.Decrypter.decrypt(Decrypter.java:69)
...
 
I started getting this since the provider sending me an encrypted
assertion added a new claim to the assertion that is based on the
http://www.w3.org/2001/XMLSchema#integer format. The value used for this
claim is 2535285330239773, which is a 64-bit value. Since
XSIntegerUnmarshaller tries to convert the received value into an
Integer using Integer.valueOf("2535285330239773"), I do get the
exception (2535285330239773 > 32-bit value).
 
I went to see what http://www.w3.org/2001/XMLSchema has to say about
#integer. Section 3.3.13 says that the value space of integer is the
infinite set. It specifically calls out that the value can be infinite,
so I'm guessing that sending a value bigger than 32-bit using #integer
is valid. Is there a reason why something received with #integer does
not fallback to a bigger format (Long) if the conversion fails because
of busting the size of a 32-bit value?
 
As it is almost impossible for me to change the
http://www.w3.org/2001/XMLSchema#integer type sent from the third-party
assertion provider, is there a way to fix this issue? Could it be a
problem on the OpenSAML/XMLTooling side?
 
Best Regards,
 
Maxime
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