com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n, \t) is allowed between tokens at [Source: java.io.PushbackInputStream@c6b2dd9; line: 1, column: 2]

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    com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n, \t) is allowed between tokens at [Source: java.io.PushbackInputStream@c6b2dd9; line: 1, column: 2]
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    com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n, \t) is allowed between tokens at [Source: java.io.PushbackInputStream@c6b2dd9; line: 1, column: 2]
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    com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n, \t) is allowed between tokens at [Source: java.io.PushbackInputStream@c6b2dd9; line: 1, column: 2]
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    com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n, \t) is allowed between tokens at [Source: java.io.PushbackInputStream@c6b2dd9; line: 1, column: 2]
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    com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n, \t) is allowed between tokens at [Source: java.io.PushbackInputStream@7169c7d4; line: 1, column: 2]

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Root Cause Analysis

  1. com.fasterxml.jackson.core.JsonParseException

    Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n, \t) is allowed between tokens at [Source: java.io.PushbackInputStream@c6b2dd9; line: 1, column: 2]

    at com.fasterxml.jackson.core.JsonParser._constructError()
  2. Jackson-core
    UTF8StreamJsonParser.nextToken
    1. com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1419)
    2. com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:508)
    3. com.fasterxml.jackson.core.base.ParserMinimalBase._throwInvalidSpace(ParserMinimalBase.java:459)
    4. com.fasterxml.jackson.core.json.UTF8StreamJsonParser._skipWSOrEnd(UTF8StreamJsonParser.java:2625)
    5. com.fasterxml.jackson.core.json.UTF8StreamJsonParser.nextToken(UTF8StreamJsonParser.java:645)
    5 frames
  3. Jackson
    ObjectMapper.readValue
    1. com.fasterxml.jackson.databind.ObjectMapper._initForReading(ObjectMapper.java:3105)
    2. com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3051)
    3. com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2221)
    3 frames
  4. Spring
    HttpMessageConverterExtractor.extractData
    1. org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:205)
    2. org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:208)
    3. org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.read(AbstractJackson2HttpMessageConverter.java:200)
    4. org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:97)
    4 frames
  5. org.springframework.cloud
    ResponseEntityDecoder.decode
    1. org.springframework.cloud.netflix.feign.support.SpringDecoder.decode(SpringDecoder.java:57)
    2. org.springframework.cloud.netflix.feign.support.ResponseEntityDecoder.decode(ResponseEntityDecoder.java:40)
    2 frames
  6. feign-core
    SynchronousMethodHandler.decode
    1. feign.SynchronousMethodHandler.decode(SynchronousMethodHandler.java:146)
    1 frame