Hello,

I've something strange, and don't know if I do not understand OASIS catalog specification, or if there is a bug in Apache Resolver...

I have this catalog :

<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
  <group xml:base="cp:/catalog.xml">
    <rewriteURI uriStartString="foo:" rewritePrefix="cp:"/>
    <rewriteSystem systemIdStartString="foo:" rewritePrefix="cp:"/>
  </group>
  <group xml:base="file:/home/fake/catalog.xml">
    <rewriteURI uriStartString="bar:" rewritePrefix="cp:"/>
    <rewriteSystem systemIdStartString="bar:" rewritePrefix="cp:"/>
  </group>
</catalog>

Dependending on I have or not support for cp: protocol (first group xml:base), the first xml:base (cp:/catalog.xml) is rewritten fo file:cp:/catalog.xml. It is normal ? I can imagine that new URI(xx).isAbsolute() is used to know if it should be absolutized (?). That's strange, but, Ok, I can accept this...

Then, if cp: support is enabled, if I try to resolve bar:/schemaBar/bar.rnc, it is resolved as cp:/schemaBar/bar.rnc, but if I try to resolve foe:/schemaFoe/foe.rnc, it is resolved as null.

My question is : with rewriteSystem / rewriteURI, does the xml:base may change the resolution ? In specification, xml:base is not mentionned in https://www.oasis-open.org/committees/entity/spec-2001-08-06.html#s.rewrite, but it is said " If the value of the rewritePrefix attribute is relative, it must be made absolute with respect to the base URI currently in effect."  in https://www.oasis-open.org/committees/entity/spec-2001-08-06.html#s.rewritesystem

My thought was that xml:base was used only to absolutized relatives URI, and not absolute ones.

Cannot find CatalogManager.properties
Parse catalog: ./xcatalog
Loading catalog: ./xcatalog
Default BASE: file:////home/ext-cmarchand/devel/apache/xml-commons/xcatalog
Catalog does not exist: file:////home/ext-cmarchand/devel/apache/xml-commons/xcatalog
Parse catalog: ../../github/jing-trang/cmarchand_test/catalog-bug.xml
Loading catalog: ../../github/jing-trang/cmarchand_test/catalog-bug.xml
Default BASE: file:////home/ext-cmarchand/devel/github/jing-trang/cmarchand_test/catalog-bug.xml
xml:base: cp:/catalog.xml
BASE CUR: file:////home/ext-cmarchand/devel/github/jing-trang/cmarchand_test/catalog-bug.xml
BASE STR: cp:/catalog.xml
BASE NEW: cp:/catalog.xml
rewriteURI: foo:
    cp:
REWRITE_URI: foo:
    cp:/catalog.xml
rewriteSystem: foo:
    cp:
REWRITE_SYSTEM: foo:
    cp:/catalog.xml
(reset) xml:base: file:////home/ext-cmarchand/devel/github/jing-trang/cmarchand_test/catalog-bug.xml
BASE CUR: cp:/catalog.xml
BASE STR: file:////home/ext-cmarchand/devel/github/jing-trang/cmarchand_test/catalog-bug.xml
BASE NEW: file:////home/ext-cmarchand/devel/github/jing-trang/cmarchand_test/catalog-bug.xml
xml:base: file:/home/fake/catalog.xml
BASE CUR: file:////home/ext-cmarchand/devel/github/jing-trang/cmarchand_test/catalog-bug.xml
BASE STR: file:/home/fake/catalog.xml
BASE NEW: file:/home/fake/catalog.xml
rewriteURI: bar:
    cp:
REWRITE_URI: bar:
    cp:
rewriteSystem: bar:
    cp:
REWRITE_SYSTEM: bar:
    cp:
(reset) xml:base: file:////home/ext-cmarchand/devel/github/jing-trang/cmarchand_test/catalog-bug.xml
BASE CUR: file:/home/fake/catalog.xml
BASE STR: file:////home/ext-cmarchand/devel/github/jing-trang/cmarchand_test/catalog-bug.xml
BASE NEW: file:////home/ext-cmarchand/devel/github/jing-trang/cmarchand_test/catalog-bug.xml

We can see the REWRITE_SYSTEM are not processed the same with different xml:base.

I will enjoy any help to locate the problem (my code, my catalog, or Apache Resolver)...

Thanks in advance,
Christophe