Index Not Found Exception / white.lock error while using a docker image

Error message:

Error in custom provider, org.apache.lucene.index.IndexNotFoundException: no segments* file found in MMapDirectory@/app/data/odinson/index lockFactory=org.apache.lucene.store.NativeFSLockFactory@68e2d03e: files: [write.lock]

Run the following command and index the documents using a docker image as described here

rm -rf /path/to/data/odinson/index/

NOTE: Replace /path/to/data/odinson with the path to the directory containing index.

No such method error while using a docker image

Error message:

'void sun.misc.Unsafe.putInt(java.lang.Object, int, int)'

Make sure you have java 11 installed (e.g., OpenJDK 11).

Access Denied Exception while indexing with a docker image

Error message:

Exception in thread "main" java.nio.file.AccessDeniedException: /app/data/odinson/index/write.lock

chmod -R 777 /path/to/data/odinson

NOTE: Replace /path/to/data/odinson with the path to the directory containing docs. You may need to use sudo at the beginning of this command.