!--a11y-->
library.provider.dtd 
A document type definition (DTD) is used for writing the provider.xml file- when new libraries are developed. The provider.xml is consequently parsed to follow the grammar of library.provider.dtd. This DTD is a rule for defining provider specific properties for libraries, such as the library name, component name, version number, external references, and so on.
The library.provider.dtd defines the following elements:

The usage of each tag is explained in detail as follows:
<!--
This is the XML DTD for the library provider descriptor.
-->
<!ELEMENT provider-descriptor (display-name, component-name, description?,
major-version, minor-version, micro-version, provider-name?, group-name?,
references?, jars)>
<!--
A short name that will be displayed by the J2EE Engine tools (Visual
Administrator, Deploy Tool and so on).
Example:
<display-name>Employee Self Library</display-name>
-->
<!ELEMENT display-name (#PCDATA)>
<!--
This element specifies the name under which the component is registered in the
Service Container.
-->
<!ELEMENT component-name (#PCDATA)>
<!--
The description element is used by the library provider to describe the parent
element.
-->
<!ELEMENT description (#PCDATA)>
<!--
The major number of the library version.
-->
<!ELEMENT major-version (#PCDATA)>
<!--
The minor number of the version of the library.
-->
<!ELEMENT minor-version (#PCDATA)>
<!--
The micro number of the library version.
-->
<!ELEMENT micro-version (#PCDATA)>
<!--
The provider-name element contains the name of the library provider.
-->
<!ELEMENT provider-name (#PCDATA)>
<!--
This element specifies the name of the component group.
-->
<!ELEMENT group-name (#PCDATA)>
<!--
The references element contains a set of reference names to other services,
libraries or interfaces.
-->
<!ELEMENT references (reference)*>
<!-–
The reference element contains a reference name to another service, library or
interface that is used in the library source code (explicit or implicit).
-->
<!ELEMENT reference (#PCDATA)>
<!--
A mandatory attribute that shows the type of the referred component.
-->
<!ATTLIST reference type (service|library|interface)
#REQUIRED>
<!--
This attribute is mandatory and is used to show that the classes of the
referred component can be used directly by the provided library component
without additional conditions.
-->
<!ATTLIST reference strength (weak) #REQUIRED>
<!--
Reference provider-name attribute specifies the name of the component provider
that the library refers to.
-->
<!ATTLIST reference provider-name CDATA #IMPLIED>
<!--
The jars element contains a set of jar-name tags that describe the binary JAR
archives of the library.
-->
<!ELEMENT jars (jar-name)+>
<!--
The name of the JAR archive file that contains the whole library binary code
or just part of it.
Example:
<jars>
<jar-name>
mylibrary.jar
</jar-name>
</jars>
-->
<!ELEMENT jar-name (#PCDATA)>
