Examples of errors detected by the V6058 diagnostic

V6058. Comparing objects of incompatible types.


Elasticsearch

V6058 The 'equals' function compares objects of incompatible types: Integer, TimeValue. DatafeedUpdate.java(375)


....
private final TimeValue queryDelay;
private final TimeValue frequency;
....
private final Integer scrollSize;
....

boolean isNoop(DatafeedConfig datafeed)
{
  return (frequency == null
          || Objects.equals(frequency, datafeed.getFrequency()))
    && (queryDelay == null
        || Objects.equals(queryDelay, datafeed.getQueryDelay()))
    && (scrollSize == null
        || Objects.equals(scrollSize, datafeed.getQueryDelay())) // <=
    && ....)
}

WildFly

V6058 The 'equals' function compares objects of incompatible types: String, ModelNode. JaxrsIntegrationProcessor.java(563)


// Send value to RESTEasy only if it's not null, empty string, or the
// default value.

private boolean isTransmittable(AttributeDefinition attribute,
                                 ModelNode modelNode) {
  if (modelNode == null || ModelType
      .UNDEFINED.equals(modelNode.getType())) {
    return false;
  }
  String value = modelNode.asString();
  if ("".equals(value.trim())) {
    return false;
  }
  return !value.equals(attribute.getDefaultValue());  // <=
}

Similar errors can be found in some other places:

  • V6058 The 'equals' function compares objects of incompatible types: String, ObjectTypeAttributeDefinition. DataSourceDefinition.java(141)


Bugs Found

Checked Projects
412
Collected Errors
14 132
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