I can tell what if any of the current repository.jboss.com/maven2 contents are valid jboss-common 1.0.x releases. Only common/core/jboss-common-core/1.0 has any meaningful content:

[starksm@succubus jboss]$ pwd
/usr/Repository/repository.jboss.com/maven2/jboss
[starksm@succubus jboss]$ ls -R common/
common/:
4.0.4/ core/ CVS/

common/4.0.4:
CVS/

common/4.0.4/CVS:
Entries Repository Root

common/core:
CVS/ jboss-common-core/

common/core/CVS:
Entries Repository Root

common/core/jboss-common-core:
1.0/ 1.0.1.TEST/ 1.0.2/ CVS/

common/core/jboss-common-core/1.0:
CVS/ jboss-common-core-1.0.pom
jboss-common-core-1.0.jar jboss-common-core-1.0-sources.jar

common/core/jboss-common-core/1.0/CVS:
Entries Repository Root

common/core/jboss-common-core/1.0.1.TEST:
CVS/

common/core/jboss-common-core/1.0.1.TEST/CVS:
Entries Repository Root

common/core/jboss-common-core/1.0.2:
CVS/

common/core/jboss-common-core/1.0.2/CVS:
Entries Repository Root

common/core/jboss-common-core/CVS:
Entries Repository Root

common/CVS:
Entries Repository Root

[starksm@succubus jboss]$ ls -R core
core:
common-core/ CVS/

core/common-core:
1.0.0.GA/ CVS/

core/common-core/1.0.0.GA:
CVS/

core/common-core/1.0.0.GA/CVS:
Entries Repository Root

core/common-core/CVS:
Entries Repository Root

core/CVS:
Entries Repository Root

There looks to be a 2.0.3.GA and 4.0.4 release under jboss/jboss-common as well:

[starksm@succubus jboss]$ ls -R jboss-common
jboss-common:
2.0.3.GA/ CVS/ maven-metadata.xml
2.0.4.Alpha/ maven-metadata-cvs-file-repository.xml maven-metadata.xml.md5
4.0.4/ maven-metadata-local.xml maven-metadata.xml.sha1

jboss-common/2.0.3.GA:
jboss-common-2.0.3.GA.pom jboss-common-2.0.3.GA.pom.sha1
jboss-common-2.0.3.GA.pom.md5

jboss-common/2.0.4.Alpha:
jboss-common-2.0.4.Alpha.pom

jboss-common/4.0.4:
CVS/ jboss-common-4.0.4.jar jboss-common-4.0.4.pom

jboss-common/4.0.4/CVS:
Entries Repository Root

jboss-common/CVS:
Entries Repository Root

The jboss/jboss-common/2.0.3.GA/ was prior to changing the common-core artifactId to jboss-common-core. I'm going to delete these common and core directories, the jboss/jboss-common/2.0.3.GA/, and add the repository.jboss.com/jboss/common/1.0.3.GA under repository.jboss.com/jboss/jboss-common/1.0.3.GA to try to straighten out the legacy jboss-common repository artifacts.