Jackson Object Mapper to conver String to JsonNode

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Following are some of the code snippet for Jackson Object Mapper
Convert String to JsonNode Object 
String data;
JsonNode jsonNode = getObjectMapper().readTree(data);
Convert an Object to JSON String 
String jsonString = getObjectMapper().writeValueAsString(object);
Convert InputStream to JsonNode Object 
InputStream inputStream;
JsonNode jsonNode = getObjectMapper().readTree(inputStream);

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