In XE-2.0M2,xwiki.virtual=1 causes bugs for groovy scripts using 2.0 Macro Bridge

2.0M2 XE release has a bug when using Groovy Macros in the 2.0 Macro Bridge.
To demonstrate this bug, see attached RootVhostGroovyMacroPkg.xar

2400  08-09-09 14:25   Macros/WebHome.xml
7032  08-09-09 14:25   Macros/GroovyRandom.xml
3131  08-09-09 14:25   Macros/GroovyRandomTest.xml
7387  08-09-09 14:25   Macros/Weather.xml
2177  08-09-09 14:25   Macros/WeatherMacroTest.xml
1050  08-09-09 14:25   package.xml
 

In order to get the attached groovy scripts to work with the 2.0 Macro Bridge, in xwiki:XWiki.XWikiPreferences?editor=globaladmin&section=Programming, the "Groovy Macro Pages" field must be set to "Macros.Weather,Macros.GroovyRandom".

When xwiki.virtual=1 there is a bug that you need to have documents Macros.Weather and Macros.GroovyRandom on the VIRTUAL HOST, and owned by the "root" wiki admin xwiki:XWiki.Admin. If this isn't done, you get a "inadequate access privileges" error on the groovy script, unless you're running the script on the root wiki. Furthermore, these local macro-bridge documents do not override or change the original root-wiki definition setup in the xwiki:XWiki.XWikiPreferences "Macros.Weather,Macros.GroovyRandom." In 2.0M2, you can use completely empty documents for this purpose, as long as they're owned by xwiki:XWiki.Admin. The need for these"shadow" documents in the
virtual wiki is a bug; alternately, the fact that they do nothing in the virtual-wiki (they don't allow definition of any new local macros) is a bug as well.

What makes sense is that if the virtual-wiki defines it's own <vhost>:XWiki.XWikiPreferences "Groovy Macro Pages" entries, and these
are owned by xwiki:XWiki.Admin for "programming rigths" in a virtual wiki, then these scripts would override or take precedence
over globally defined ones. In fact, if any locally defined scripts exist, they should be available on that v-host as long as they're owned by xwiki:XWiki.Admin for "programming rigths".

A second Major bug in the wiki-macro bridge is that only the first invocation "works" – all subsequent invocations fail silently. As the only way to get output from these groovy scripts is to println, I'm wonderng whether the output stream gets closed after the first invocation, causing all subsequent invocations to go "silent".

For example the following:

== Testing 2.0 Macro groovy_random ==

1. {{groovy_random size="66"/}}
1. {{groovy_random size="56"/}}
1. {{groovy_random size="46"/}}
1. {{groovy_random size="36"/}}
1. {{groovy_random size="26"/}}
1. {{groovy_random size="16"/}}
1. {{groovy_random size="6"  /}}
...

Produces the result:

Testing 2.0 Macro groovy_random

   1.
      p0NhDskfp3AXkjlL7qJKwErXuVSJMKLAGhwBPLhIminTLAc9qz8yVVFAY6DD5RF6GC
   2.
   3.
   4.
   5.
   6.
   7.
   ... 

Note that all the outputs subsequent to the first are empty. Last time I ran similar scripts in a non-virtual wiki, however, I believe
all the outputs from each groovy script invocation occurred.

By way of comparison, a number of Groovy Scripts that do not use the Wiki Macro Bridge were developed to see if the same issues arose in a virtual wiki. For example, multiple groovy scripts can be called sequentially in a document (sharing objects/variables between them), and all the outputs occur correctly, unlike above. Furthermore, no additional complications in installation occur: for example, the wiki macro bridge seems to require the "root wiki" be modified to contain macros even if you only want them on a single virtual host. This will make those macros available in all virtual-wikis, although the scripts will all fail unless xwiki:XWiki.Admin-owned "shadow documents" exist on all the virtual-host wikis.

I think this behavior is a "bug". If scripts are to be made available across all wikis in a virtual-wiki setup, they should be defined on the root-wiki's xwiki:XWiki.XWikiPreferences -> Programming -> "Groovy Macro Pages". If they are to be available on a single virtual-wiki, as long as they're owned by the root xwiki:XWiki.Admin, they should be defined in <vhost>:XWiki.XWikiPreferences -> Programming -> "Groovy Macro Pages".

FYI, here are the additional groovy scripts fin the second attachment, GroovyExamplesPkg.xar

1776  08-09-09 14:58   Groovy/WebHome.xml
2318  08-09-09 14:58   Groovy/GroovyTest1.xml
2466  08-09-09 14:58   Groovy/GroovyTest3.xml
2643  08-09-09 14:58   Groovy/GroovyTest4.xml
3618  08-09-09 14:58   Groovy/SshHelperClass.xml
2129  08-09-09 14:58   Groovy/SshHelperTest.xml
2088  08-09-09 14:58   Groovy/TestClass1.xml
2148  08-09-09 14:58   Groovy/TestClass2.xml
2773  08-09-09 14:58   Groovy/VelocityCallingTestClass1.xml
2099  08-09-09 14:58   Groovy/VelocityCallingTestClass2.xml
1750  08-09-09 14:58   package.xml