Luigi De Masi created CAMEL-14155:
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Summary: xpath throws NPE if body is null when camel-saxon is used
as JAXP implementation
Key: CAMEL-14155
URL: https://issues.apache.org/jira/browse/CAMEL-14155
Project: Camel
Issue Type: Bug
Components: came-core
Reporter: Luigi De Masi
despite [XPath API spec|
https://docs.oracle.com/javase/8/docs/api/javax/xml/xpath/XPathExpression.html#evaluate-java.lang.Object-javax.xml.namespace.QName-]
states:
{quote}If a null value is provided for item, an empty document will be used for
the context\{quote}
saxon, starting from 9.6, they decided to ignore it and throw NPE if the node
is null, from [saxon
javadoc|https://www.saxonica.com/html/documentation9.8/javadoc/net/sf/saxon/xpath/XPathExpressionImpl.html#evaluate-java.lang.Object-javax.xml.namespace.QName-]:
{quote} Contrary to the interface specification, Saxon does not supply an empty
document when the value is null. This is because XPath 2.0 allows the context
item to be "absent" (null). So Saxon executes the XPath expression with the
context item undefined.\{quote}
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