diff --git a/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/executor/ExecutionUtils.java b/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/executor/ExecutionUtils.java
index a4ecdff0..5452fcb5 100644
--- a/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/executor/ExecutionUtils.java
+++ b/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/executor/ExecutionUtils.java
@@ -153,11 +153,11 @@ public boolean snapshotMatches(OSMEntitySnapshot snapshot, Set<OSMType> osmTypes
     }
     if (!simpleFeatureTypes.isEmpty()) {
       boolean[] simpleFeatures = setRequestedSimpleFeatures(simpleFeatureTypes);
-      return matchesTags && ((simpleFeatures[0] && snapshot.getGeometry() instanceof Puntal)
-          || (simpleFeatures[1] && snapshot.getGeometry() instanceof Lineal)
-          || (simpleFeatures[2] && snapshot.getGeometry() instanceof Polygonal)
-          || (simpleFeatures[3]
-              && "GeometryCollection".equalsIgnoreCase(snapshot.getGeometry().getGeometryType())));
+      return matchesTags && simpleFeatures[0] && snapshot.getGeometry() instanceof Puntal
+          || simpleFeatures[1] && snapshot.getGeometry() instanceof Lineal
+          || simpleFeatures[2] && snapshot.getGeometry() instanceof Polygonal
+          || simpleFeatures[3]
+              && "GeometryCollection".equalsIgnoreCase(snapshot.getGeometry().getGeometryType());
     }
     return matchesTags;
   }
@@ -277,7 +277,7 @@ public void writeCsvResponse(GroupByObject[] resultSet, HttpServletResponse serv
         }
       } else {
         rows = createCsvResponseForElementsRatioGroupBy(resultSet);
-      } 
+      }
       writer.writeNext(rows.getLeft().toArray(new String[rows.getLeft().size()]), false);
       writer.writeAll(rows.getRight(), false);
       writer.close();
@@ -620,11 +620,11 @@ public ElementsResult[] fillElementsResult(SortedMap<OSHDBTimestamp, ? extends N
       if (isDensity) {
         results[count] = new ElementsResult(
             TimestampFormatter.getInstance().isoDateTime(entry.getKey()), Double.parseDouble(
-                df.format((entry.getValue().doubleValue() / (Geo.areaOf(geom) * 0.000001)))));
+                df.format(entry.getValue().doubleValue() / (Geo.areaOf(geom) * 0.000001))));
       } else {
         results[count] =
             new ElementsResult(TimestampFormatter.getInstance().isoDateTime(entry.getKey()),
-                Double.parseDouble(df.format((entry.getValue().doubleValue()))));
+                Double.parseDouble(df.format(entry.getValue().doubleValue())));
       }
       count++;
     }
@@ -642,7 +642,7 @@ public UsersResult[] fillUsersResult(SortedMap<OSHDBTimestamp, ? extends Number>
         results[count] =
             new UsersResult(TimestampFormatter.getInstance().isoDateTime(entry.getKey()),
                 toTimestamps[count + 1], Double.parseDouble(
-                    df.format((entry.getValue().doubleValue() / (Geo.areaOf(geom) / 1000000)))));
+                    df.format(entry.getValue().doubleValue() / (Geo.areaOf(geom) / 1000000))));
       } else {
         results[count] = new UsersResult(
             TimestampFormatter.getInstance().isoDateTime(entry.getKey()), toTimestamps[count + 1],
diff --git a/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/inputprocessing/InputProcessingUtils.java b/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/inputprocessing/InputProcessingUtils.java
index c85a76b7..968cdc32 100644
--- a/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/inputprocessing/InputProcessingUtils.java
+++ b/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/inputprocessing/InputProcessingUtils.java
@@ -68,8 +68,8 @@ public String findEpsg(double lon, double lat) {
         zoneNumber = 37;
       }
     }
-    String isNorth = (lat > 0) ? "6" : "7";
-    String zone = (zoneNumber < 10) ? "0" + zoneNumber : "" + zoneNumber;
+    String isNorth = lat > 0 ? "6" : "7";
+    String zone = zoneNumber < 10 ? "0" + zoneNumber : "" + zoneNumber;
     return "EPSG:32" + isNorth + zone;
   }
 
@@ -369,11 +369,11 @@ public <T extends OSHDBMapReducible> MapReducer<T> filterOnPlanarRelations(MapRe
    */
   public boolean checkGeometryOnSimpleFeatures(Geometry geom,
       Set<SimpleFeatureType> simpleFeatureTypes) {
-    return (simpleFeatureTypes.contains(SimpleFeatureType.POLYGON) && geom instanceof Polygonal)
-        || (simpleFeatureTypes.contains(SimpleFeatureType.POINT) && geom instanceof Puntal)
-        || (simpleFeatureTypes.contains(SimpleFeatureType.LINE) && geom instanceof Lineal)
-        || (simpleFeatureTypes.contains(SimpleFeatureType.OTHER)
-            && GEOMCOLLTYPE.equalsIgnoreCase(geom.getGeometryType()));
+    return simpleFeatureTypes.contains(SimpleFeatureType.POLYGON) && geom instanceof Polygonal
+        || simpleFeatureTypes.contains(SimpleFeatureType.POINT) && geom instanceof Puntal
+        || simpleFeatureTypes.contains(SimpleFeatureType.LINE) && geom instanceof Lineal
+        || simpleFeatureTypes.contains(SimpleFeatureType.OTHER)
+            && GEOMCOLLTYPE.equalsIgnoreCase(geom.getGeometryType());
   }
 
   /**
diff --git a/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/inputprocessing/InputProcessor.java b/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/inputprocessing/InputProcessor.java
index 36d6853d..e943b066 100644
--- a/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/inputprocessing/InputProcessor.java
+++ b/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/inputprocessing/InputProcessor.java
@@ -349,7 +349,7 @@ public void checkKeysValues(String[] keys, String[] values) throws BadRequestExc
    */
   public boolean compareKeysValues(String[] keys, String[] keys2, String[] values,
       String[] values2) {
-    return (Arrays.equals(keys, keys2) && Arrays.equals(values, values2));
+    return Arrays.equals(keys, keys2) && Arrays.equals(values, values2);
   }
 
   /** Used in /ratio requests. */
diff --git a/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/utils/RequestUtils.java b/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/utils/RequestUtils.java
index 6a15b8a5..465622f0 100644
--- a/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/utils/RequestUtils.java
+++ b/src/main/java/org/heigit/bigspatialdata/ohsome/ohsomeapi/utils/RequestUtils.java
@@ -62,8 +62,8 @@ public static boolean cacheNotAllowed(String url, String[] timeParameter) {
    * @return whether it is a data-extraction request, or not
    */
   public static boolean isDataExtraction(String url) {
-    return (url.contains("elementsFullHistory") || url.contains("elements/geometry")
-        || url.contains("elements/centroid") || url.contains("elements/bbox"));
+    return url.contains("elementsFullHistory") || url.contains("elements/geometry")
+        || url.contains("elements/centroid") || url.contains("elements/bbox");
   }
 
   /**
@@ -134,7 +134,7 @@ private static boolean usesDefaultToTimestamp(String[] timeParameter) {
     if (length != 1) {
       return false;
     }
-    return (timeParameter[0].contains("//") || timeParameter[0].endsWith("/"));
+    return timeParameter[0].contains("//") || timeParameter[0].endsWith("/");
   }
 
   /**