java.io.IOException: directory '/var/opt/constellio/tomcat/webapps/ constellio/WEB-INF/constellio/collections/testsearch/data/index' exists and is a directory, but cannot be listed: list() returned null

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java.io.IOException: directory '/var/opt/constellio/tomcat/webapps/ constellio/WEB-INF/constellio/collections/testsearch/data/index' exists and is a directory, but cannot be listed: list() returned null
at org.apache.lucene.store.FSDirectory.listAll(FSDirectory.java:516)

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