package ch.qos.logback.classic.pattern;
   
   import ch.qos.logback.classic.spi.ILoggingEvent;
   
   import static org.junit.jupiter.api.Assertions.assertNull;
   
   public class XThrowableHandlingConverter extends ThrowableHandlingConverter {
   
       void assertNoNext() {
          assertNull(this.getNext(), "has next");
      }
  
      @Override
      public String convert(ILoggingEvent event) {
          if (event.getMessage().contains("assert"))
              assertNoNext();
          return "";
      }
  
  }