How to use the extension point of other plugin? (Intellij Idea)

intellij-idea, intellij-plugin

Solution

defaultExtensionNs must have FQN prefix of EP, not plugin ID:

<extensions defaultExtensionNs="com.theoryinpractice.testng">
    <listener implementation="YourListenerFQN"/>
</extensions>

(http://devnet.jetbrains.com/message/5504720#5504720)

Problem

For example, plugin Intellij Idea TestNG has extension point: ``` <extensionPoints > <extensionPoint qualifiedName="com.theoryinpractice.testng.listener" interface="org.testng.IDEATestNGListener"/> </extensionPoints> ``` I want to use this extension point as follows: ``` <extensions defaultExtensionNs="TestNG-J"> <com.theoryinpractice.testng.listener implementation="org.example.MyTestNGListener" /> </extensions> public class MyTestNGListener implements org.testng.IDEATestNGListener { ... } ``` But it did not work. What am I doing wrong? (If there are errors, I'm sorry, did the translation from Google Translate)

Original source