Details
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Bug
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Resolution: Done
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Major
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fuse-7.4-GA
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%
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+
Description
After upgrading to Fuse 7.4, the xpath expressions that operate on header when the exchange body is null are failing with nullpointer exception. This seems to be related to a change that was made in Saxon-HE 9.6 and later
i have checked both saxon version Saxon-HE-9.5.1-3 and Saxon-HE-9.8.0-8_1
Saxon-HE-9.5.1-3:
/*@Nullable*/ public Object evaluate(/*@Nullable*/ Object node, /*@NotNull*/ QName qName) throws XPathExpressionException { NodeInfo contextNode = this.contextNode; if (node != null) { if (node instanceof SingletonItem) { node = ((SingletonItem)node).asItem(); } if (node instanceof NodeInfo) { if (!((NodeInfo)node).getConfiguration().isCompatible(config)) { throw new XPathExpressionException( "Supplied node must be built using the same or a compatible Configuration"); }
Saxon-HE-9.8.0-8_1 :
/*@Nullable*/ public Object evaluate(/*@Nullable*/ Object node, /*@NotNull*/ QName qName) throws XPathExpressionException { Item contextItem; if (node instanceof ZeroOrOne) { node = ((ZeroOrOne) node).head(); } if (node instanceof TreeInfo) { node = ((TreeInfo)node).getRootNode(); } if (node instanceof DocumentInfo) { node = ((DocumentInfo)node).getUnderlyingNode(); } if (node instanceof NodeInfo) { if (!((NodeInfo) node).getConfiguration().isCompatible(config))
Null check on node is removed ' if (node != null) {' removed in latest versions, because of this change throwing NPE if body is Null
StackTrace:
java.lang.NullPointerException at net.sf.saxon.xpath.XPathExpressionImpl.evaluate(XPathExpressionImpl.java:172) at org.apache.camel.builder.xml.XPathBuilder.doInEvaluateAs(XPathBuilder.java:977) at org.apache.camel.builder.xml.XPathBuilder.evaluateAs(XPathBuilder.java:850) at org.apache.camel.builder.xml.XPathBuilder.matches(XPathBuilder.java:172)
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