Code as below:

Public class sample {
  Public void test() {
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    Welcome to the community. What have you done to solve this problem? Have you done a google search at all? Can you provide any stacktrace? What do your config files look like?
    – Lee Jensen
    Mar 28, 2023 at 18:13
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    What is Syso? An user-defined class? Can you share the code of its constructor? Mar 29, 2023 at 9:10

1 Answer 1


The NullPointerException in the given code is because of the typo in the syso statement. The correct statement should be System.out.println() instead of syso().

The corrected code should look like:

public class Sample {
public void test() {

Once you make the correction, you should be able to run the test case without getting the NullPointerException.

It is important to use proper coding conventions and follow best practices while writing test cases. This helps in avoiding common errors and makes the code more readable and maintainable. You can refer to resources like the Java coding conventions by Oracle (https://www.oracle.com/java/technologies/javase/codeconventions-introduction.html) for guidance on writing clean and efficient code in Java.

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