adjusted polar import test to use the binary file; removed extra JSON polar serialization stuff and reverted data mining methods to proteted again where possible

Change-Id: Iab3ad4f55e307d2a89b1deccc1fd17448c54cbba

java/com.sap.sailing.domain.shared.android/src/com/sap/sailing/domain/base/impl/BoatClassImpl.java

@@ -1,7 +1,5 @@
 package com.sap.sailing.domain.base.impl;
 
-import java.util.Objects;
-
 import com.sap.sailing.domain.base.BoatClass;
 import com.sap.sailing.domain.base.SharedDomainFactory;
 import com.sap.sailing.domain.common.BoatClassMasterdata;
@@ -142,45 +140,4 @@ public class BoatClassImpl extends NamedImpl implements BoatClass {
     public BoatHullType getHullType() {
         return hullType;
     }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(getName(), approximateManeuverDurationInMilliseconds, displayName, hullBeam, hullLength,
-                hullType, typicallyStartsUpwind);
-    }
-
-    @Override
-    public boolean equals(Object object) {
-        if (object == this)
-            return true;
-
-        if (!(object instanceof BoatClassImpl))
-            return false;
-
-        BoatClassImpl other = (BoatClassImpl) object;
-
-        if (!Objects.equals(this.getName(), other.getName()))
-            return false;
-
-        if (!Objects.equals(this.approximateManeuverDurationInMilliseconds,
-                other.approximateManeuverDurationInMilliseconds))
-            return false;
-
-        if (!Objects.equals(this.displayName, other.displayName))
-            return false;
-
-        if (!Objects.equals(this.hullBeam, other.hullBeam))
-            return false;
-
-        if (!Objects.equals(this.hullLength, other.hullLength))
-            return false;
-
-        if (!Objects.equals(this.hullType, other.hullType))
-            return false;
-
-        if (!Objects.equals(this.typicallyStartsUpwind, other.typicallyStartsUpwind))
-            return false;
-
-        return true;
-    }
 }