3.2 の時点で推奨されていません。拡張を行う場合はむしろ、javadoc だけでなく Java エディターの任意の部分のための追加提案が可能な org.eclipse.jdt.ui.javaCompletionProposalComputer 拡張ポイントに提供したほうがよいでしょう。
<!ELEMENT extension (javadocCompletionProcessor*)>
<!ATTLIST extension
point CDATA #REQUIRED
id CDATA #IMPLIED
name CDATA #IMPLIED>
<!ELEMENT javadocCompletionProcessor EMPTY>
<!ATTLIST javadocCompletionProcessor
id CDATA #REQUIRED
name CDATA #IMPLIED
class CDATA #IMPLIED>
<extension point=
"org.eclipse.jdt.ui.javadocCompletionProcessor"
>
<javadocCompletionProcessor id=
"XDocletJavadocProcessor"
name=
"XDoclet Javadoc Processor"
class=
"com.example.XDocletJavadocProcessor"
>
</javadocCompletionProcessor>
</extension>
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All rights reserved.
This program and the accompanying materials are made
available under the terms of the Eclipse Public License v1.0 which accompanies
this distribution, and is available at
http://www.eclipse.org/legal/epl-v10.html