java.lang.NullPointerException

GitHub | tailg8nj | 8 months ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    GitHub comment 1292#231487129

    GitHub | 9 months ago | hipatel7
    java.lang.NullPointerException
  2. 0

    Jackson: Object to String via writeValueAsString: NPE

    Stack Overflow | 8 months ago | ethrbunny
    java.lang.NullPointerException: null
  3. Speed up your debug routine!

    Automated exception search integrated into your IDE

    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
      CircularGenericsTest.testWrite
      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._fromVariable(TypeFactory.java:1409)
      6. com.fasterxml.jackson.databind.type.TypeFactory._fromAny(TypeFactory.java:1164)
      7. com.fasterxml.jackson.databind.type.TypeFactory._fromParamType(TypeFactory.java:1380)
      8. com.fasterxml.jackson.databind.type.TypeFactory._fromAny(TypeFactory.java:1154)
      9. com.fasterxml.jackson.databind.type.TypeFactory._fromParamType(TypeFactory.java:1380)
      10. com.fasterxml.jackson.databind.type.TypeFactory._fromAny(TypeFactory.java:1154)
      11. com.fasterxml.jackson.databind.type.TypeFactory._resolveSuperClass(TypeFactory.java:1285)
      12. com.fasterxml.jackson.databind.type.TypeFactory._fromClass(TypeFactory.java:1246)
      13. com.fasterxml.jackson.databind.type.TypeFactory._fromAny(TypeFactory.java:1150)
      14. com.fasterxml.jackson.databind.type.TypeFactory.constructType(TypeFactory.java:618)
      15. com.fasterxml.jackson.databind.cfg.MapperConfig.constructType(MapperConfig.java:290)
      16. com.fasterxml.jackson.databind.cfg.MapperConfig.introspectClassAnnotations(MapperConfig.java:320)
      17. com.fasterxml.jackson.databind.ser.BasicSerializerFactory.createTypeSerializer(BasicSerializerFactory.java:264)
      18. com.fasterxml.jackson.databind.ser.BeanSerializerFactory.findPropertyTypeSerializer(BeanSerializerFactory.java:324)
      19. com.fasterxml.jackson.databind.ser.BeanSerializerFactory._constructWriter(BeanSerializerFactory.java:817)
      20. com.fasterxml.jackson.databind.ser.BeanSerializerFactory.findBeanProperties(BeanSerializerFactory.java:611)
      21. com.fasterxml.jackson.databind.ser.BeanSerializerFactory.constructBeanSerializer(BeanSerializerFactory.java:390)
      22. com.fasterxml.jackson.databind.ser.BeanSerializerFactory.findBeanSerializer(BeanSerializerFactory.java:273)
      23. com.fasterxml.jackson.databind.ser.BeanSerializerFactory._createSerializer2(BeanSerializerFactory.java:225)
      24. com.fasterxml.jackson.databind.ser.BeanSerializerFactory.createSerializer(BeanSerializerFactory.java:159)
      25. com.fasterxml.jackson.databind.SerializerProvider._createUntypedSerializer(SerializerProvider.java:1272)
      26. com.fasterxml.jackson.databind.SerializerProvider._createAndCacheUntypedSerializer(SerializerProvider.java:1222)
      27. com.fasterxml.jackson.databind.SerializerProvider.findValueSerializer(SerializerProvider.java:499)
      28. com.fasterxml.jackson.databind.SerializerProvider.findTypedValueSerializer(SerializerProvider.java:697)
      29. com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:270)
      30. com.fasterxml.jackson.databind.ObjectMapper._configAndWriteValue(ObjectMapper.java:3672)
      31. com.fasterxml.jackson.databind.ObjectMapper.writeValueAsString(ObjectMapper.java:3048)
      32. com.fasterxml.jackson.databind.CircularGenericsTest.testWrite(CircularGenericsTest.java:20)
      32 frames