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There is no check in MoreLikeThisBuilder.createQuery which ensures that the field provided by comparingField really exists. I tries to retrieve the metadata and uses it w/o checking whether the field/metadata existed.
noformat
java.lang.NullPointerException
at org.hibernate.search.query.dsl.impl.MoreLikeThisBuilder.createQuery(MoreLikeThisBuilder.java:248)
at org.hibernate.search.query.dsl.impl.MoreLikeThisBuilder.createQuery(MoreLikeThisBuilder.java:219)
at org.hibernate.search.query.dsl.impl.MoreLikeThisBuilder.createQuery(MoreLikeThisBuilder.java:132)
at org.hibernate.search.query.dsl.impl.ConnectedMoreLikeThisQueryBuilder.createQuery(ConnectedMoreLikeThisQueryBuilder.java:79)
at org.hibernate.search.test.query.dsl.DSLTest.testMoreLikeThisOnCompressedFields(DSLTest.java:1063)
noformat
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