cuspymd commented on a change in pull request #4109:
URL: https://github.com/apache/zeppelin/pull/4109#discussion_r627072750
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File path:
zeppelin-zengine/src/main/java/org/apache/zeppelin/search/LuceneSearch.java
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@@ -371,6 +372,7 @@ private void deleteDoc(String noteId, Paragraph p) {
* @see org.apache.zeppelin.search.Search#close()
*/
@Override
+ @PreDestroy
public void close() {
try {
indexWriter.close();
Review comment:
First, it is necessary to check whether `LuceneSearch` instance is
created using the Java EE container(dependency injection) in the test you
mentioned.
For example, in `NotebookSearviceTest`, `LuceneSearch` instance is created
manually, so if the error you mentioned is an error in `NotebookSearviceTest`,
adding the `@PreDestroy` annotation will have no effect.
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