Jörg von Frantzius created JCR-3435:
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Summary: NPE on parsing XPath query with child axis and star name
at beginning (regression from 1.6.x)
Key: JCR-3435
URL: https://issues.apache.org/jira/browse/JCR-3435
Project: Jackrabbit Content Repository
Issue Type: Bug
Components: jackrabbit-spi-commons
Affects Versions: 2.5.2, 2.4.2
Reporter: Jörg von Frantzius
When adding the following to
{{org.apache.jackrabbit.spi.commons.query.xpath.QueryFormatTest}}:
{code}
public void testChildStarName() throws Exception {
checkStatement("//element(*, foo)[child::*/@bar = 'bla']");
}
{code}
a NullPointerException is thrown while parsing:
{code}
java.lang.NullPointerException
at
org.apache.jackrabbit.spi.commons.query.xpath.QueryFormat.visit(QueryFormat.java:351)
at
org.apache.jackrabbit.spi.commons.query.RelationQueryNode.accept(RelationQueryNode.java:115)
at
org.apache.jackrabbit.spi.commons.query.xpath.QueryFormat.visit(QueryFormat.java:317)
at
org.apache.jackrabbit.spi.commons.query.LocationStepQueryNode.accept(LocationStepQueryNode.java:166)
at
org.apache.jackrabbit.spi.commons.query.xpath.QueryFormat.visit(QueryFormat.java:260)
at
org.apache.jackrabbit.spi.commons.query.PathQueryNode.accept(PathQueryNode.java:74)
at
org.apache.jackrabbit.spi.commons.query.xpath.QueryFormat.visit(QueryFormat.java:115)
at
org.apache.jackrabbit.spi.commons.query.QueryRootNode.accept(QueryRootNode.java:115)
at
org.apache.jackrabbit.spi.commons.query.xpath.QueryFormat.<init>(QueryFormat.java:75)
at
org.apache.jackrabbit.spi.commons.query.xpath.QueryFormat.toString(QueryFormat.java:95)
at
org.apache.jackrabbit.spi.commons.query.xpath.QueryFormatTest.checkStatement(QueryFormatTest.java:80)
at
org.apache.jackrabbit.spi.commons.query.xpath.QueryFormatTest.testChildStarName(QueryFormatTest.java:71)
{code}
This is a regression from Jackrabbit 1.6.5, where a similar test does run, i.e.
parsing does not throw exception.
The same NPE happens when "child::" is dropped, i.e. when the query looks like
this:
{code}
"//element(*, foo)[*/@bar = 'bla']"
{code}
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