Disallow setting a header with a null name
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Key: CAMEL-1152
URL: https://issues.apache.org/activemq/browse/CAMEL-1152
Project: Apache Camel
Issue Type: Improvement
Components: camel-core
Environment: Any
Reporter: Ramon Buckland
Priority: Minor
I have found that it is possible to set the header "name" to null of a message.
You can set a null header name as follows..
<setHeader name="someName"><constant>SUCCESS</constant></setHeader>
This task succeeds, (ie no error occurs) but not as you would expect, because
this is what it is meant to be (@headerName)
<setHeader headerName="someName"><constant>SUCCESS</constant></setHeader>
eg: log dumping the header shows - Headers:{null=SUCCESS}
A side effect of this happening is that if you then use the xslt: component
after setting a null header with a value, the xslt (saxon) component freaks
out with a NPE because it is attempting to set parameters for each header it
finds, but the header is there and has a null name.
A Snippet of the Stack Trace -
java.lang.NullPointerException
at
net.sf.saxon.om.StructuredQName.fromClarkName(StructuredQName.java:70)
at net.sf.saxon.Controller.setParameter(Controller.java:1979)
at
org.apache.camel.builder.xml.XsltBuilder.addParameters(XsltBuilder.java:290)
at
org.apache.camel.builder.xml.XsltBuilder.configureTransformer(XsltBuilder.java:276)
at org.apache.camel.builder.xml.XsltBuilder.process(XsltBuilder.java:74)
at
org.apache.camel.impl.ProcessorEndpoint.onExchange(ProcessorEndpoint.java:92)
at
org.apache.camel.impl.ProcessorEndpoint$1.process(ProcessorEndpoint.java:66)
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