Java 14 released NullPointerException with many important pieces of information in case the -XX:+ShowCodeDetailsInExceptionMessages flag proceeds to JVM.
Examine the below given example:
ApiTester.java
public class APITester { public static void main(String[] args) { String message = null; System.out.println(message.length()); } }
Old Way: Compile and Run the Program
$javac APITester.java $java APITester
Output
Exception in thread "main" java.lang.NullPointerException at APITester.main(APITester.java:6)
New Way: Compile and Run the Program with new Flag
$javac APITester.java $java -XX:+ShowCodeDetailsInExceptionMessages APITester
Output
Exception in thread "main" java.lang.NullPointerException: Cannot invoke "String.length()" because "<local1>" is null at APITester.main(APITester.java:6)