RFR: 8289511: Axes: child [v2]

[Bill Huang]

On Thu, 14 Jul 2022 01:25:38 GMT, Joe Wang <joehw at openjdk.org> wrote:

>> Bill Huang has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:
>> 
>>  - Merge branch 'openjdk:master' into JDK-8289511
>>  - Added more XPath expression test cases and created negative tests for invalid expressions.
>>  - Created XPathChildTest.java
>
> test/jaxp/javax/xml/jaxp/unittest/xpath/XPathChildTest.java line 156:
> 
>> 154:     public Object[][] getInvalidExp() {
>> 155:         return new Object[][]{
>> 156:                 // NullPointerException
> 
> These NPE tests need to be revisited. First of all, by the spec, NPE shall throw only "If expression or returnType is null" (and that's already covered in the Exception test). Secondly, these NPEs were not thrown by the eval process, it was merely because the NodeList was empty or Node was null. The expressions themselves were not "invalid".

Agreed. These expressions are not invalid and they are more on a focus of zero children rather than NPE. I can move them to a different test case.

-------------

PR: https://git.openjdk.org/jdk/pull/9484