Sumit questions

• How to clear the contents of a list which is inside a HashMap value using Java 8 stream
• UPDATE statement not working in stored procedure; No error & no exception is happening
• Lower bound generic in java does not compile even when passing super class
• Java generics incompatible types (no instance(s) of type variable(s) exist)
• PowerMockito.when returns null
• How PreparedStatement Works Internally in Java: How compilation & caching of SQL works

Sumit answers