#598 - fixed linter warnings

src/main/java/de/deadlocker8/budgetmaster/database/BackupItemParser.java

@@ -9,6 +9,10 @@ import java.util.List;
 
 public class BackupItemParser
 {
+	private BackupItemParser()
+	{
+	}
+
 	public static <T> List<T> parseItems(JsonArray jsonArray, Class<T> itemType)
 	{
 		List<T> parsedItems = new ArrayList<>();

src/main/java/de/deadlocker8/budgetmaster/database/DatabaseParser.java

@@ -15,8 +15,8 @@ public class DatabaseParser
 {
 	final Logger LOGGER = LoggerFactory.getLogger(this.getClass());
 
-	private final int MINIMUM_VERSION = 4;
-	private final int LATEST_VERSION = 5;
+	private static final int MINIMUM_VERSION = 4;
+	private static final int LATEST_VERSION = 5;
 
 	private final String jsonString;
 

src/main/java/de/deadlocker8/budgetmaster/database/model/v4/BackupRepeatingEndOption_v4.java

@@ -10,6 +10,7 @@ public class BackupRepeatingEndOption_v4
 
 	public BackupRepeatingEndOption_v4()
 	{
+		// for GSON
 	}
 
 	public String getLocalizationKey()

src/main/java/de/deadlocker8/budgetmaster/database/model/v4/BackupTemplate_v4.java

@@ -23,6 +23,7 @@ public class BackupTemplate_v4 implements BackupTransactionBase_v4, Upgradeable<
 
 	public BackupTemplate_v4()
 	{
+		// for GSON
 	}
 
 	public String getTemplateName()

src/main/java/de/deadlocker8/budgetmaster/database/model/v4/BackupTransaction_v4.java

@@ -24,6 +24,7 @@ public class BackupTransaction_v4 implements BackupTransactionBase_v4, Upgradeab
 
 	public BackupTransaction_v4()
 	{
+		// for GSON
 	}
 
 	public Integer getAmount()

src/main/java/de/deadlocker8/budgetmaster/database/model/v5/BackupTransaction_v5.java

@@ -21,6 +21,7 @@ public class BackupTransaction_v5
 
 	public BackupTransaction_v5()
 	{
+		// for GSON
 	}
 
 	public BackupTransaction_v5(Integer amount, Boolean isExpenditure, String date, BackupAccount_v5 account, BackupCategory_v5 category, String name, String description, List<Tag> tags, BackupRepeatingOption_v4 repeatingOption, BackupAccount_v5 transferAccount)