java.lang.AssertionError: This exception has no message.

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at com.sleepycat.persist.impl.ComplexFormat.evolveFieldList(
at com.sleepycat.persist.impl.ComplexFormat.evolveAllFields(
at com.sleepycat.persist.impl.ComplexFormat.evolve(
at com.sleepycat.persist.impl.Evolver.evolveFormatInternal(
at com.sleepycat.persist.impl.Evolver.evolveFormat(
at com.sleepycat.persist.impl.PersistCatalog.(
at com.sleepycat.persist.impl.Store.(
at com.sleepycat.persist.EntityStore.(

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