Error

In this post, we will see how to fix java.lang.ClassCastException: java.util.Arrays$ArrayList cannot be cast to java.util.ArrayList. ClassCastException is runtime exception which indicate that code has tried to cast an object to a subclass which is not an instance. Reason for java.lang.ClassCastException: java.util.Arrays$ArrayList cannot be cast to java.util.ArrayList Although static method Arrays.asList() returns List, it returns […]

In this post, we will see how to fix error java.util.HashMap$Values cannot be cast to class java.util.List. Why HashMap values cannot be cast to list? HashMap values returns java.util.Collection and you can not cast Collection to List or ArrayList. It will throw ClassCastException in this scenario. Let’s understand with the help of example: [crayon-628a83f8cd7e7194022634/] Output: […]

In this article, we will see how to fix Unable to obtain LocalDateTime from TemporalAccessor in Java 8. Unable to obtain LocalDateTime from TemporalAccessor : Reason You will generally get this error, when you try to convert String to LocalDateTime and Formatted String does not have time related information. Let’s understand with the help of […]

Learn about how to fix class names are only accepted if annotation processing is explicitly requested in java.

Learn about how to fix java.util.InputMismatchException.

Learn about how to resolve uses unchecked or unsafe operations. recompile with -xlint:unchecked for details.

Learn about how to fix uses or overrides a deprecated api in java.

In this post, we will see how to resolve java.lang.classnotfoundexception: sun.jdbc.odbc.jdbcodbcdriver exception in java. Problem: java.lang.classnotfoundexception: sun.jdbc.odbc.jdbcodbcdriver This exeception comes in Java 8 because sun.jdbc.odbc.jdbcodbcdriver has been removed from JDK and JRE. This class is used to connect database using Object database connectivity driver such as Microsoft access. Since Java 8 does not support jdbc […]

Learn about how to fix error char cannot be dereferenced in java.