diff --git a/CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/zip/CityGmlZipEntry.java b/CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/zip/CityGmlZipEntry.java
index 132dd0c30338925a9eb1e2711ee999443ceab50c..ad9896400d763f967f7be848b4362339c4f8928d 100644
--- a/CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/zip/CityGmlZipEntry.java
+++ b/CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/zip/CityGmlZipEntry.java
@@ -19,9 +19,8 @@ public class CityGmlZipEntry {
     private final String fileName;
     private CityDoctorModel model;
     private CityGmlZipArchive parentArchive;
-    private boolean validated = false;
-    private boolean decompressed = false;
-    private long size = -1L;
+    private boolean decompressed;
+    private long fileSize = -1L;
     private static final long MB = 1024 * 1024L;
     private ZipEntryErrorType errorType = null;
 
@@ -66,13 +65,13 @@ public class CityGmlZipEntry {
 
     private boolean entrySizeWithinMemoryLimits() throws IOException {
         long memoryLimit = (long) Math.ceil(((double) Runtime.getRuntime().maxMemory() / MB)*0.9);
-        if (size != -1L) {
-            return memoryLimit > size;
+        if (fileSize != -1L) {
+            return memoryLimit > fileSize;
         }
         try (CityGmlZipInputStream cgis = new CityGmlZipInputStream(this)){
             long filesize = cgis.getFileSize(memoryLimit);
             if (filesize != -1){
-                this.size = filesize;
+                this.fileSize = filesize;
                 return true;
             } else {
                 return false;