java.lang.NullPointerException

GitHub | hipatel7 | 5 months ago
  1. 0

    GitHub comment 1292#231487129

    GitHub | 5 months ago | hipatel7
    java.lang.NullPointerException
  2. 0

    Jackson: Object to String via writeValueAsString: NPE

    Stack Overflow | 4 months ago | ethrbunny
    java.lang.NullPointerException: null
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  4. 0

    Android: Saving Map State in Google map

    Stack Overflow | 11 months ago | Junie Negentien
    java.lang.RuntimeException: Unable to resume activity {com.ourThesis.junieNegentien2015/com.ourThesis.junieNegentien2015.MainActivity}: java.lang.NullPointerException

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      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.writeValue
      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:622)
      12. com.fasterxml.jackson.databind.introspect.AnnotatedClass.resolveType(AnnotatedClass.java:228)
      13. com.fasterxml.jackson.databind.introspect.AnnotatedMethod.getParameterType(AnnotatedMethod.java:157)
      14. com.fasterxml.jackson.databind.introspect.AnnotatedWithParams.getParameter(AnnotatedWithParams.java:105)
      15. com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector._addCreators(POJOPropertiesCollector.java:457)
      16. com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector.collectAll(POJOPropertiesCollector.java:303)
      17. com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector.getJsonValueMethod(POJOPropertiesCollector.java:172)
      18. com.fasterxml.jackson.databind.introspect.BasicBeanDescription.findJsonValueMethod(BasicBeanDescription.java:224)
      19. com.fasterxml.jackson.databind.ser.BasicSerializerFactory.findSerializerByAnnotations(BasicSerializerFactory.java:350)
      20. com.fasterxml.jackson.databind.ser.BeanSerializerFactory._createSerializer2(BeanSerializerFactory.java:210)
      21. com.fasterxml.jackson.databind.ser.BeanSerializerFactory.createSerializer(BeanSerializerFactory.java:159)
      22. com.fasterxml.jackson.databind.SerializerProvider._createUntypedSerializer(SerializerProvider.java:1272)
      23. com.fasterxml.jackson.databind.SerializerProvider._createAndCacheUntypedSerializer(SerializerProvider.java:1222)
      24. com.fasterxml.jackson.databind.SerializerProvider.findValueSerializer(SerializerProvider.java:499)
      25. com.fasterxml.jackson.databind.SerializerProvider.findTypedValueSerializer(SerializerProvider.java:697)
      26. com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:270)
      27. com.fasterxml.jackson.databind.ObjectMapper._configAndWriteValue(ObjectMapper.java:3672)
      28. com.fasterxml.jackson.databind.ObjectMapper.writeValue(ObjectMapper.java:3030)
      28 frames