Examples of com.fasterxml.jackson.databind.JsonMappingException

com.fasterxml.jackson.databind.JsonMappingException
Checked exception used to signal fatal problems with mapping of content.
One additional feature is the ability to denote relevant path of references (during serialization/deserialization) to help in troubleshooting.

        }
        try {
            @SuppressWarnings("unchecked") T map = (T) creatorMethod.invoke(null, multimap);
            return map;
        } catch (InvocationTargetException e) {
            throw new JsonMappingException("Could not map to " + type, _peel(e));
        } catch (IllegalArgumentException e) {
            throw new JsonMappingException("Could not map to " + type, _peel(e));
        } catch (IllegalAccessException e) {
            throw new JsonMappingException("Could not map to " + type, _peel(e));
        }
    }

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        }
    }


    private void expect(JsonParser jp, JsonToken token) throws IOException {
        if (jp.getCurrentToken() != token) {
            throw new JsonMappingException("Expecting " + token + ", found " + jp.getCurrentToken(),
                    jp.getCurrentLocation());
        }
    }

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      Map<String, String> map = new HashMap<String, String>();


      JsonToken token;


      if ((token = jp.getCurrentToken()) != JsonToken.START_ARRAY)
        throw new JsonMappingException("expected start of array, but found " + token, jp.getCurrentLocation());


      while ((token = jp.nextToken()) == JsonToken.START_ARRAY) {
        map.put(jp.nextTextValue(), jp.nextTextValue());
        if ((token = jp.nextToken()) != JsonToken.END_ARRAY)
          throw new JsonMappingException("expected a 2-valued array, but next token was a " + token,
            jp.getCurrentLocation());
      }


      return map;
    }

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            //}
        } catch (Exception e) {
            String name = (i == props.length) ? "[anySetter]" : props[i].getName();
            wrapAndThrow(provider, e, bean, name);
        } catch (StackOverflowError e) {
            JsonMappingException mapE = new JsonMappingException("Infinite recursion (StackOverflowError)", e);
            String name = (i == props.length) ? "[anySetter]" : props[i].getName();
            mapE.prependPath(new JsonMappingException.Reference(bean, name));
            throw mapE;
        }
    }

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      Map<String, String> map = new HashMap<String, String>();


      JsonToken token;


      if ((token = jp.getCurrentToken()) != JsonToken.START_ARRAY)
        throw new JsonMappingException("expected start of array, but found " + token, jp.getCurrentLocation());


      while ((token = jp.nextToken()) == JsonToken.START_ARRAY) {
        map.put(jp.nextTextValue(), jp.nextTextValue());
        if ((token = jp.nextToken()) != JsonToken.END_ARRAY)
          throw new JsonMappingException("expected a 2-valued array, but next token was a " + token,
            jp.getCurrentLocation());
      }


      return map;
    }

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        }
    }


    public static IOException maybeUnwrapPath(String pathToSkip, IOException cause) {
        if ((pathToSkip != null) && (cause instanceof JsonMappingException)) {
            JsonMappingException mappingException = (JsonMappingException) cause;
            List<JsonMappingException.Reference> paths = mappingException.getPath();
            if (!paths.isEmpty()) {
                Iterator<String> pathIterator = dotSplitter.split(pathToSkip).iterator();
                Iterator<JsonMappingException.Reference> refIterator = paths.iterator();
                while (pathIterator.hasNext()) {
                    String pathToSkipPart = pathIterator.next();
                    if (!refIterator.hasNext()) {
                        return cause;
                    }
                    String nextRefField = refIterator.next().getFieldName();
                    if (!pathToSkipPart.equals(nextRefField)) {
                        return cause;
                    }
                }
                JsonMappingException unwrapped = new JsonMappingException(rootMessage(mappingException),
                                                                          mappingException.getLocation(),
                                                                          mappingException.getCause());
                if (refIterator.hasNext()) {
                    List<JsonMappingException.Reference> remainingRefs = Lists.newArrayList(refIterator);
                    for (JsonMappingException.Reference reference : Lists.reverse(remainingRefs)) {
                        unwrapped.prependPath(reference);
                    }
                }
                return unwrapped;
            }
        }

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                    wrapLoc = fromConfigValue(locRef);
                }
            }
            List<JsonMappingException.Reference> paths = Lists.reverse(cause.getPath());
            if (!paths.isEmpty()) {
                JsonMappingException withLoc = new JsonMappingException(rootMessage(cause), wrapLoc, cause);
                for (JsonMappingException.Reference path : paths) {
                    withLoc.prependPath(path);
                }
                return withLoc;
            } else {
                return new JsonMappingException(rootMessage(cause), wrapLoc, cause);
            }
        }
        return cause;
    }

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        } catch (Exception e) { // but wrap RuntimeExceptions, to get path information
            String msg = e.getMessage();
            if (msg == null) {
                msg = "[no message for "+e.getClass().getName()+"]";
            }
            throw new JsonMappingException(msg, e);
        }
        // end of super-class implementation


        if (asArray) {
            jgen.writeEndObject();

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        } catch (Exception e) { // but others do need to be, to get path etc
            String msg = e.getMessage();
            if (msg == null) {
                msg = "[no message for "+e.getClass().getName()+"]";
            }
            throw new JsonMappingException(msg, e);
        }
        // end of super-class implementation


        if (asArray) {
            jgen.writeEndObject();

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        } catch (Exception e) { // but others do need to be, to get path etc
            String msg = e.getMessage();
            if (msg == null) {
                msg = "[no message for "+e.getClass().getName()+"]";
            }
            throw new JsonMappingException(msg, e);
        }
        // end of super-class implementation
        if (asArray) {
            jgen.writeEndObject();
        }

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