Saxon

Not sure if this is still the case with Saxon 11.1. In this code:

      Processor proc = new Processor(configuration);      
      proc.getUnderlyingConfiguration().setErrorReporterFactory(config -> {return new ErrorReporterToListener(errorListener);});
      proc.setConfigurationProperty(Feature.NAME_POOL, proc.getUnderlyingConfiguration().getNamePool());
      proc.setConfigurationProperty(Feature.SOURCE_PARSER_CLASS, CatalogEnabledXMLReader.class.getName());
      proc.setConfigurationProperty(Feature.LINE_NUMBERING, Boolean.TRUE);
      proc.setConfigurationProperty(Feature.TREE_MODEL, Builder.LINKED_TREE);

      // XQuery compiler
      XQueryCompiler comp = proc.newXQueryCompiler();
      comp.setErrorReporter(new ErrorReporterToListener(errorListener));
      comp.setBaseURI(new URI(querySystemID));
      XQueryExecutable xPathExecutable = comp.compile(parameter.getValue());
      XQueryEvaluator pathSelector = xPathExecutable.load();
      pathSelector.setErrorListener(errorListener);

in order to avoid various errors being reported in the console I needed to set the error listener on proc.getUnderlyingConfiguration(), on the XQueryCompiler and on the XQueryEvaluator, otherwise in some stages the errors were dumped to the standard error listener.