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Access Modifiers In Java Default When we don't use any keyword explicitly, Java will set a default access to a given class, method or property The default access modifier is also called packageprivate, which means that all members are visible within the same package but aren't accessible from other packages package comDefault access modifier means we do not explicitly declare an access modifier for a class, field, method, etc The scope of the default access modifier lies within the package When a class or its members associated with default access modifier then Java default access modifier constructor

Java Module System Showing essential features and properties by hiding internal things we can achieve abstraction But sometimes while exposing essential features we may have to expose sensitive data As an example, in the below project we have to provide Util feature from comjava4codingutil package to the clients The Java Platform Module System (JPMS) adds more reliability, better separation of concerns, and stronger encapsulation to Java applications However, it's not a build tool, hence it lacks the ability for automatically managing project dependenciesJava Runtime Environment version, which may be interpreted as a RuntimeVersion javaversiondate where module is the caller's module In cases where SystemgetLogger is called from a context where there is no caller frame on the stack (eg when called directly from a JNI attached thread), IllegalCallerException is thrown 2 Java module system vs osgi