services/reference/src/main/java/com/example/reference/ReferenceController.java [45:59]:
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  public ResponseEntity<Metadata> metadata(){
    Metadata data = new Metadata();
    data.setProjectID(MetadataConfig.getProjectId());
    data.setZone(MetadataConfig.getZone());
    data.setInstanceID(MetadataConfig.getInstanceId());

    // introduce an artificial delay
    try {
      TimeUnit.SECONDS.sleep(delay);
    } catch (InterruptedException ie) {
      Thread.currentThread().interrupt();
    }

    return new ResponseEntity<Metadata>(data, HttpStatus.OK);
  }
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runtimes/crac/reference-crac/src/main/java/com/example/reference/ReferenceController.java [47:61]:
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  public ResponseEntity<Metadata> metadata(){
    Metadata data = new Metadata();
    data.setProjectID(MetadataConfig.getProjectId());
    data.setZone(MetadataConfig.getZone());
    data.setInstanceID(MetadataConfig.getInstanceId());

    // introduce an artificial delay
    try {
      TimeUnit.SECONDS.sleep(delay);
    } catch (InterruptedException ie) {
      Thread.currentThread().interrupt();
    }

    return new ResponseEntity<Metadata>(data, HttpStatus.OK);
  }
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