junit4: How to call the other class static method in junit4 @before or @Test?

Question

How to call the other class static method in junit4 @Before or @Test?

I have an question about how to call the other class method in junit4 @Test or @Before?

For example, I wrote a static method in UtilTool

public static String readAllBytes(String filePath) {
    String content = "";

    try {
        content = new String(Files.readAllBytes(Paths.get(filePath)));
    } catch (IOException e) {
        e.printStackTrace();
    }

    return content;
}

Use the define method in junit4 @Before:

@Before
public void setUp() {
    System.out.println("setUp......");
    UtilTool.readAllBytes("/tmp/test.txt")

But I will get the following error messages when I call the readAllBytes method from UtilTool in Junit4 @Before or @Test

java.lang.NoSuchMethodError: ..... 

How should I fix this issue?

Answer 1

I have fix this issue, I made a stupid mistake. I forgot replace the older jar in classpath. thanks!