null safe

Author: hauner

json-schema-validator/src/test/java/io/openapiprocessor/jsonschema/example/SetupExampleTest.java

@@ -13,6 +13,7 @@
 import org.junit.jupiter.api.Test;
 
 import java.net.URI;
+import java.util.Collection;
 
 import static io.openapiprocessor.jsonschema.support.Uris.createUri;
 
@@ -81,10 +82,11 @@ void setupExample() throws ConverterException {
  boolean valid = result.isValid ();
 
  // 7. print errors with error location
- if (!valid && result.getErrors () != null) {
+ Collection<OutputUnit> errors = result.getErrors();
+ if (!valid && errors != null) {
  System.out.println ("validation failed!");
 
- for (OutputUnit error : result.getErrors ()) {
+ for (OutputUnit error : errors) {
  String schemaLocation = error.getAbsoluteKeywordLocation ();
  schemaLocation = schemaLocation.substring (schemaLocation.indexOf ('#'));
 
@@ -98,4 +100,4 @@ void setupExample() throws ConverterException {
  }
  }
  }
-}
+}