Java JsonPath grab InvalidPathException in code

Question

I am using JsonPath and am able to parse my data and get the values when the path provided is correct.

However when I provide an incorrect path (user input) the program terminates. I dont want that to happen. Is there anyway for me to catch this exceptions and continue with the next steps?

try
        {
            String value = JsonPath.read(jsonText, jsonPath);

            System.out.println(value);
        }
        catch(InvalidPathException e)
        {
            System.out.println("ERROR<InvalidPathException>: "+e.getMessage());
        }

I get following error with invalid path:

Exception in thread "main" com.jayway.jsonpath.InvalidPathException: invalid path
at com.jayway.jsonpath.internal.filter.FieldFilter.filter(FieldFilter.java:59)
at com.jayway.jsonpath.JsonPath.read(JsonPath.java:182)
at com.jayway.jsonpath.JsonPath.read(JsonPath.java:202)
at com.jayway.jsonpath.JsonPath.read(JsonPath.java:307)
at office.jsonPathparse.main(jsonPathparse.java:37)

This exception seems to be comming from FieldFilter which is jar's class.

Sotirios Delimanolis · Accepted Answer · 2013-08-30 19:45:18Z

2

If I understood you correctly and your catch block isn't being executed, you must be catching Java 7's java.nio.file.InvalidPathException instead of JsonPath's com.jayway.jsonpath.InvalidPathException.

Double check your import statements.

answered Aug 30, 2013 at 19:45

Sotirios Delimanolis

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1 Comment

Rahul Dabas Over a year ago

Thank you @Sotirios .. I din realise I imported incorrect exception .. My code is working perfectly now.

Prateek · Accepted Answer · 2013-08-30 19:57:08Z

0

Library arises invalid path exception on basis of below code(taken from grepcode)

if (jsonPath == null || jsonPath.trim().isEmpty() || jsonPath.matches("new ") 
       || jsonPath.matches("[^\\?\\+\\=\\-\\*\\/\\!]\\(")) {

       throw new InvalidPathException("Invalid path");

 }

So i think you should print jsonPath and matches it with the above condition.

answered Aug 30, 2013 at 19:57

Prateek

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