How can I validate JSON schema in Java?

How can I validate JSON schema in Java?

You can use libraries like JSON Schema Validator or Everit to validate JSON schemas in Java.

Can you show me a code example using the Everit library?

Sure! Here's a simple example:

import org.everit.json.schema.Schema;
import org.everit.json.schema.SchemaLoader;
import org.json.JSONObject;
import org.json.JSONTokener;

public class JsonSchemaValidation {
    public static void main(String[] args) {
        JSONObject jsonSchema = new JSONObject(new JSONTokener("{...your schema...}"));
        JSONObject jsonSubject = new JSONObject(new JSONTokener("{...your json...}"));
        Schema schema = SchemaLoader.load(jsonSchema);
        schema.validate(jsonSubject); // throws a ValidationException if this object is invalid
    }
}

What if the JSON doesn't match the schema?

If the JSON doesn't match the schema, a ValidationException will be thrown, which you can catch to handle the error.

Are there any other libraries for JSON schema validation?

Yes, other popular libraries include Jackson, Gson, and json-schema-validator. Each has its own features and usage.