Hello, The project of JSON files I want to import has right at 1900 JSON files in it. Because of this iit would help significantly if the error dialog could contain information on the error such as file name, error type, line number, with file name being far and away the most helpful item.

Thanks for considering.

I've tried installing in several versions of Eclipse and Eclipse with Papyrus all of them fail when I try and do JSONSchema to UML with a dialog saying Problem Occurred. The details of the error are:

An internal error occurred during:
"edu.uoc.som.jsonschematouml.ui.popup.handlers.ConvertToClassDiagram".
java.lang.NullPointerException

I've tried several different JSON Schema files. The example of one is shown below:

{
"id": "/common/core/fieldTypes/codeType_v02_00_rev001.json#",
"$schema": "http://json-schema.org/draft-03/schema#",
"title": "Code",
"description": "The code for the related entity. If this is a coded value, codeValue and shortName should be used. If this is just a string value, only shortName is necessary",
"type": "object",
"additionalProperties": false,
"properties": {
"codeValue": {
"description": "The code for the related entity",
"type": "string"
},
"shortName": {
"description": "Short description of the related code",
"type": "string"
},
"longName": {
"description": "Long description of the related code",
"type": "string"
}
}
}

Hello,
im having two issues:

1. I have a JSON file (https://github.com/dashevo/dpns-contract/blob/v0.2-dev/src/schema/dpns-documents.json) that visualizes great with your "JSON Discoverer" but does not work at all with this eclipse plugin. Actually none of my simple examples run. They all have no header and just start with the json structure. There will be no errror and the resulting uml is just:

<?xml version="1.0" encoding="UTF-8"?> <uml:Model xmi:version="20131001" xmlns:xmi="http://www.omg.org/spec/XMI/20131001" xmlns:uml="http://www.eclipse.org/uml2/5.0.0/UML" xmi:id="_DZCE0EHBEeqcCL9vRpPMpg" name="myJSON"> <packagedElement xmi:type="uml:Package" xmi:id="_DZCE0UHBEeqcCL9vRpPMpg" name="myJSON"> <packagedElement xmi:type="uml:Class" xmi:id="_DZCE0kHBEeqcCL9vRpPMpg" name="Unknown"/> <packagedElement xmi:type="uml:Class" xmi:id="_DZCE00HBEeqcCL9vRpPMpg" name="Dpns-schema"/> </packagedElement> </uml:Model>

2. So it seems the eclipse plugin needs a header with "schema" and "id". But now I tested the testValid.json from your repo (https://github.com/SOM-Research/jsonSchema-to-uml/blob/master/plugins/edu.uoc.som.jsonschematouml.test/inputs/testValid.json) and this file produces NullPointerException:
   An internal error occurred during: "edu.uoc.som.jsonschematouml.ui.popup.handlers.ConvertToClassDiagram". java.lang.NullPointerException

I saw the solved issue with similar problem, but testValid.json should have valid URI as id.

best regards,

When an object type is an array, for instance
"type": ["string","integer"]
The conversion fails with this stack

java.lang.IllegalStateException
	at com.google.gson.JsonArray.getAsString(JsonArray.java:226)
	at edu.uoc.som.jsonschematouml.generators.JSONSchemaToUML.analyzeProperty(JSONSchemaToUML.java:463)
	at edu.uoc.som.jsonschematouml.generators.JSONSchemaToUML.analyzeObject(JSONSchemaToUML.java:336)
	at edu.uoc.som.jsonschematouml.generators.JSONSchemaToUML.analyzeRootSchemaElement(JSONSchemaToUML.java:264)
	at edu.uoc.som.jsonschematouml.generators.JSONSchemaToUML.analyzeDefinitions(JSONSchemaToUML.java:754)
	at edu.uoc.som.jsonschematouml.generators.JSONSchemaToUML.analyzeRootSchemaElement(JSONSchemaToUML.java:269)
	at edu.uoc.som.jsonschematouml.generators.JSONSchemaToUML.analyzeSchema(JSONSchemaToUML.java:253)
	at edu.uoc.som.jsonschematouml.generators.JSONSchemaToUML.analyze(JSONSchemaToUML.java:219)
	at edu.uoc.som.jsonschematouml.generators.JSONSchemaToUML.launch(JSONSchemaToUML.java:171)
	at edu.uoc.som.jsonschematouml.ui.handlers.ConvertToClassDiagram$1.run(ConvertToClassDiagram.java:56)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

This line doesn't handle the array case:

JSONSchemaToUML.java:463
 else if(itemsObject.has("type") && itemsObject.get("type").getAsString().equals("string")) { 

Note this case of type is conform to json schema type definition (at least in json schema draft v7):

"type": {
            "anyOf": [
                {"$ref": "#/definitions/simpleTypes"},
                {
                    "type": "array",
                    "items": {"$ref": "#/definitions/simpleTypes"},
                    "minItems": 1,
                    "uniqueItems": true
                }
            ],