java.lang.NullPointerException: null

Stack Overflow | ethrbunny | 9 months ago
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  1. 0

    Jackson: Object to String via writeValueAsString: NPE

    Stack Overflow | 9 months ago | ethrbunny
    java.lang.NullPointerException: null
  2. 0

    GitHub comment 1292#231487129

    GitHub | 10 months ago | hipatel7
    java.lang.NullPointerException
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    Root Cause Analysis

    1. java.lang.NullPointerException

      null

      at com.fasterxml.jackson.databind.type.ResolvedRecursiveType.equals()
    2. Jackson
      TypeBindings$AsKey.equals
      1. com.fasterxml.jackson.databind.type.ResolvedRecursiveType.equals(ResolvedRecursiveType.java:103)
      2. com.fasterxml.jackson.databind.type.TypeBindings$AsKey.equals(TypeBindings.java:458)
      2 frames
    3. Java RT
      ConcurrentHashMap.get
      1. java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:940)
      1 frame
    4. Jackson
      ObjectMapper.writeValueAsString
      1. com.fasterxml.jackson.databind.util.LRUMap.get(LRUMap.java:68)
      2. com.fasterxml.jackson.databind.type.TypeFactory._fromClass(TypeFactory.java:1211)
      3. com.fasterxml.jackson.databind.type.TypeFactory._fromParamType(TypeFactory.java:1384)
      4. com.fasterxml.jackson.databind.type.TypeFactory._fromAny(TypeFactory.java:1154)
      5. com.fasterxml.jackson.databind.type.TypeFactory._resolveSuperInterfaces(TypeFactory.java:1298)
      6. com.fasterxml.jackson.databind.type.TypeFactory._fromClass(TypeFactory.java:1243)
      7. com.fasterxml.jackson.databind.type.TypeFactory._fromAny(TypeFactory.java:1150)
      8. com.fasterxml.jackson.databind.type.TypeFactory._resolveSuperInterfaces(TypeFactory.java:1298)
      9. com.fasterxml.jackson.databind.type.TypeFactory._fromClass(TypeFactory.java:1247)
      10. com.fasterxml.jackson.databind.type.TypeFactory._fromAny(TypeFactory.java:1150)
      11. com.fasterxml.jackson.databind.type.TypeFactory.constructType(TypeFactory.java:618)
      12. com.fasterxml.jackson.databind.cfg.MapperConfig.constructType(MapperConfig.java:290)
      13. com.fasterxml.jackson.databind.cfg.MapperConfig.introspectClassAnnotations(MapperConfig.java:320)
      14. com.fasterxml.jackson.databind.ser.BeanSerializerFactory.removeIgnorableTypes(BeanSerializerFactory.java:714)
      15. com.fasterxml.jackson.databind.ser.BeanSerializerFactory.findBeanProperties(BeanSerializerFactory.java:573)
      16. com.fasterxml.jackson.databind.ser.BeanSerializerFactory.constructBeanSerializer(BeanSerializerFactory.java:390)
      17. com.fasterxml.jackson.databind.ser.BeanSerializerFactory.findBeanSerializer(BeanSerializerFactory.java:273)
      18. com.fasterxml.jackson.databind.ser.BeanSerializerFactory._createSerializer2(BeanSerializerFactory.java:225)
      19. com.fasterxml.jackson.databind.ser.BeanSerializerFactory.createSerializer(BeanSerializerFactory.java:159)
      20. com.fasterxml.jackson.databind.SerializerProvider._createUntypedSerializer(SerializerProvider.java:1272)
      21. com.fasterxml.jackson.databind.SerializerProvider._createAndCacheUntypedSerializer(SerializerProvider.java:1243)
      22. com.fasterxml.jackson.databind.SerializerProvider.findValueSerializer(SerializerProvider.java:535)
      23. com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.resolve(BeanSerializerBase.java:332)
      24. com.fasterxml.jackson.databind.ser.SerializerCache.addAndResolveNonTypedSerializer(SerializerCache.java:174)
      25. com.fasterxml.jackson.databind.SerializerProvider._createAndCacheUntypedSerializer(SerializerProvider.java:1254)
      26. com.fasterxml.jackson.databind.SerializerProvider.findValueSerializer(SerializerProvider.java:535)
      27. com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.resolve(BeanSerializerBase.java:332)
      28. com.fasterxml.jackson.databind.ser.SerializerCache.addAndResolveNonTypedSerializer(SerializerCache.java:174)
      29. com.fasterxml.jackson.databind.SerializerProvider._createAndCacheUntypedSerializer(SerializerProvider.java:1254)
      30. com.fasterxml.jackson.databind.SerializerProvider.findValueSerializer(SerializerProvider.java:535)
      31. com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.resolve(BeanSerializerBase.java:332)
      32. com.fasterxml.jackson.databind.ser.SerializerCache.addAndResolveNonTypedSerializer(SerializerCache.java:197)
      33. com.fasterxml.jackson.databind.SerializerProvider._createAndCacheUntypedSerializer(SerializerProvider.java:1233)
      34. com.fasterxml.jackson.databind.SerializerProvider.findValueSerializer(SerializerProvider.java:499)
      35. com.fasterxml.jackson.databind.SerializerProvider.findTypedValueSerializer(SerializerProvider.java:697)
      36. com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:270)
      37. com.fasterxml.jackson.databind.ObjectMapper._configAndWriteValue(ObjectMapper.java:3672)
      38. com.fasterxml.jackson.databind.ObjectMapper.writeValueAsString(ObjectMapper.java:3048)
      38 frames