If the MVN URI of the library
exists in the file <TalendStudio>\configuration\MavenUriIndex.xml, it is
automatically filled in the Default MVN
URI field.
If the MVN URI of the library is within the jar file, it is automatically detected
and filled in the Custom MVN
URI field if it is different from the default MVN URI. Select the
Custom MVN URI check box if you want to change the custom Maven
URI or use the custom Maven URI to install the library. If neither the default MVN
URI nor the custom MVN URI exists, the Default MVN
URI field is filled with mvn:org.talend.libraries/<jarname>/6.0.0-SNAPSHOT/jar.