use simple logger instead of log4j

src/main/java/de/uni_hamburg/corpora/server/ExceptionLogger.java

 package de.uni_hamburg.corpora.server;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 import jakarta.ws.rs.core.Response;
 import jakarta.ws.rs.ext.ExceptionMapper;
@@ -9,6 +7,7 @@ import jakarta.ws.rs.ext.Provider;
 
 import java.io.PrintWriter;
 import java.io.StringWriter;
+import java.util.logging.Logger;
 
 /**
  * @author bba1792 Dr. Herbert Lange
@@ -18,11 +17,11 @@ import java.io.StringWriter;
 @Provider
 public class ExceptionLogger implements ExceptionMapper<Exception> {
 
-    private static final Logger log = LoggerFactory.getLogger("ExceptionLog");
+    private static final Logger log = Logger.getLogger("ExceptionLog");
 
     @Override
     public Response toResponse(Exception e) {
-        log.error("Exception:",e);
+        log.severe("Exception:" + e);
         StringWriter sw = new StringWriter();
         e.printStackTrace(new PrintWriter(sw));
         return Response.status(500).entity(sw.toString()).build();

src/main/java/de/uni_hamburg/corpora/server/Favicon.java

@@ -24,7 +24,6 @@ public class Favicon {
     @GET
     @Produces({"image/x-icon"})
     public Response getFavicon() {
-        logger.info("Here");
         return Response.ok().build() ;
     }
 }