The good news is that JDK 7 introduces a whole new file management API that is intended for Java, but of course significantly and consequentially enhances Groovy’s file system handling capabilities.

Fortunately, the Servlet 3.1 release changed all that for developers with Java file upload concerns. Java file uploads You will need to perform the following steps to create a Java Servlet file upload ...

Java exception handling with stack traces, exception chaining, try-with-resources, final re-throw, and StackWalker.