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From: Andreas Leitgeb <avl@logic.at>
Newsgroups: comp.lang.java.programmer
Subject: Re: more porting issues to Java 11
Date: Thu, 4 Apr 2019 12:52:44 -0000 (UTC)
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Arne Vajhøj <arne@vajhoej.dk> wrote:
> On 4/3/2019 2:28 PM, Arne Vajhøj wrote:
>> On 4/3/2019 1:21 PM, Andreas Leitgeb wrote:
>>> My application unfortunately uses a couple of features that were removed
>>> in Java 11.
>>> One, of which I was a bit more optimistic of finding a substitute was the
>>> package hierarchy javax.xml.bind  and in particular (among others) the 
>>> classes
>>>    JAXBContext, Marshaller and Unmarshaller
>>> therein.
>> I go to:
> https://github.com/eclipse-ee4j/jaxb-ri
> https://github.com/eclipse-ee4j/jaxb-ri/releases/download/2.3.2-RI/jaxb-ri-2.3.2.zip

Thanks, they did indeed contain the sought classes.

For a short time it even looked like I'd be getting on, until...

after adding all the jars from jaxb-ri-2.3.2, Eclipse still
didn't find some other classes e.g. org.w3c.dom.Document .

I scanned local repositories for jar-files containing that class
and found some "xml-apis-1.4.01.jar" - it doesn't matter where it
was from and how old it was, because the gist of my problem doesn't
involve it.) 

After adding that jar file it *no longer* knew other stuff like
javax.xml.namespace.NamespaceContext, so I removed the jar again, and
looked for where it had found javax.xml.namespace.NamespaceContext
before: in jdk-11 module "java.xml"  - and this very module has
"org.w3c.dom.Document" sitting there as well!

Now, the new question driving me crazy is: why doesn't eclipse find
org.w3c.dom.Document, when it perfectly well can find
javax.xml.namespace.NamespaceContext almost right next to the other,
and why doesn't it find javax.xml.namespace.NamespaceContext anymore
once I add a jar file with org.w3c.dom.Document ?.