java.lang.IllegalArgumentException: Invalid reference 'PDch'!

Spring JIRA | Thomas Darimont | 4 years ago
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    Root Cause Analysis

    1. java.lang.IllegalArgumentException

      Invalid reference 'PDch'!

      at org.springframework.data.mongodb.core.aggregation.ExposedFieldsAggregationOperationContext.getReference()
    2. Spring Data MongoDB - Core
      Aggregation.toDbObject
      1. org.springframework.data.mongodb.core.aggregation.ExposedFieldsAggregationOperationContext.getReference(ExposedFieldsAggregationOperationContext.java:63)
      2. org.springframework.data.mongodb.core.aggregation.ExposedFieldsAggregationOperationContext.getReference(ExposedFieldsAggregationOperationContext.java:47)
      3. org.springframework.data.mongodb.core.aggregation.GroupOperation.toDBObject(GroupOperation.java:284)
      4. org.springframework.data.mongodb.core.aggregation.Aggregation.toDbObject(Aggregation.java:228)
      4 frames