Ignored MacOs File

.gitignore

@@ -1,3 +1,4 @@
 target
 .classpath
 .project
+/.DS_Store

CHANGELOG.md

@@ -2,8 +2,12 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 # Changelog for Document Store Library
 
+## [v3.0.1-SNAPSHOT]
 
-## [v3.0.0] [r5.0.0] - 
+- Fixed log which causes null pointer exception in case of null value provided
+
+
+## [v3.0.0]
 
 - Switched JSON management to gcube-jackson [#19115]
 - Changed the way to manage scheduled thread termination [#18547]

pom.xml

@@ -10,7 +10,7 @@
 
 	<groupId>org.gcube.data.publishing</groupId>
 	<artifactId>document-store-lib</artifactId>
-	<version>3.0.0</version>
+	<version>3.0.1-SNAPSHOT</version>
 	<name>Document Store Library</name>
 	<description>
 		Document Store Library:

src/main/java/org/gcube/documentstore/records/ReflectionUtility.java

@@ -18,7 +18,7 @@ import java.util.jar.JarFile;
 
 /**
  * Got from
- * http://stackoverflow.com/questions/520328/can-you-find-all-classes-in-a-package-using-reflection#answer-22462785
+ * https://stackoverflow.com/questions/520328/can-you-find-all-classes-in-a-package-using-reflection#answer-22462785
  *
  * The method first gets the current ClassLoader. It then fetches all resources
  * that contain said package and iterates of these URLs. It then creates a 

src/main/java/org/gcube/documentstore/records/implementation/AbstractRecord.java

@@ -409,7 +409,7 @@ public abstract class AbstractRecord implements Record {
 						return null;
 					}
 				} catch (InvalidValueException e) {
-					logger.error(String.format("The provided value %s is NOT valid for field with key %s.", checkedValue.toString(), key));
+					logger.error(String.format("The provided value %s is NOT valid for field with key %s.", checkedValue, key));
 					throw e;
 				}
 			}