| Attribute | Description | Required | 
|---|
| jspversion | The JSP spec version to which the tag library conforms. Valid values: 1.1, 1.2, 2.0
 | No. | 
| taglibversion | The tag library implementation version. | No. | 
| shortname | A simple default short name that could be used by a JSP authoring tool to create names with a mnemonic value. For example, it may be used as the prefered prefix value in taglib directives. | No. | 
| uri | A URI uniquely identifying this tag library. | No. | 
| displayname | A short name that is intended to be displayed by tools. | No. | 
| smallicon | Optional small-icon that can be used by tools. | No. | 
| largeicon | Optional large-icon that can be used by tools. | No. | 
| description | A simple string describing the use of this tag library, Should be user discernable. | No. | 
| filename | Specifies the filename of the generated tag library descriptor. | No. | 
| useIds | If this attribute is set to true, XDoclet will generate id attributes in the XML document. Note that this is only available in some subtasks. | No. Default is "false" | 
| xmlencoding | The encoding of the produced xml file. If your XML file uses international characters, you might want to set this to "ISO-8859-1". | No, default is "UTF-8" | 
| schema | The XML Schema to which the generated document should conform. | No. | 
| validateXML | If this is set to true, the generated XML will be validated against its DTD or XML Schema. | No, default is false. | 
| acceptInterfaces | Indicates whether or not to generate for interfaces. | No, default is "true" | 
| acceptAbstractClasses | Indicates whether or not to generate for abstract classes. | No, default is "true" | 
| packageSubstitutions | Sets the PackageSubstitutions attribute of the TemplateSubTask object | No. | 
| packageSubstitutionInheritanceSupported | Indicates whether or not package substitution should be inherited | No, default is "true" | 
| prefixWithPackageStructure | Indicates whether or not to prefix with package structure. | No, default is "true" | 
| destinationFile | The destination file name. If a {0} is found it's assumed that a per class output generation is needed, so {0} is substituted with class name; otherwise a single file is generated with the specified name. | No, default is determined by this task. | 
| templateFile | Sets the name of the template file to use for generation | No, default is determined by this task. | 
| havingClassTag | Sets the HavingClassTag attribute of the TemplateSubTask object | No. | 
| ofType |  | No. | 
| subTaskName | Sets an optional name for the subtask that will be seen in XDoclet's debug messages. | No. | 
| destDir | Sets the directory where the generated file(s) will be written. | No. | 
| mergeDir | Specifies the location of the merge directory. This is where XDoclet will look for merge files. | No. |