Github user Leemoonsoo commented on the issue:
https://github.com/apache/zeppelin/pull/2240
@zjffdu
In ZeppelinIT.testAngularDisplay, 4th paragraph creates watcher and watcher
call `z.run()` without passing interpreter context. like
```scala
z.angularWatch("myVar", (before:Object, after:Object,
context:org.apache.zeppelin.interpreter.InterpreterContext)=>{
z.run(2)
}
)
```
If we pass interpreter context is passed to `z.run()`, the error does not
occur. like
```scala
z.angularWatch("myVar", (before:Object, after:Object,
context:org.apache.zeppelin.interpreter.InterpreterContext)=>{
z.run(context.getNoteId, 2, context)
}
)
```
@zjffdu Do you think will there a way `z.run()` takes `InterpreterContext`
automatically? If that's possible, then user does not need to care about
`checkCurrentParagraph`.
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