I use IntelliJ IDEA to program in Java, but I’m having trouble debugging my code because I can’t seem to use the debugging tools like step in, step out, and step over. I cannot access them from my main Java file; Whenever i run my main java file, it opens a new file called FileInputStream.java and I can only access the debugger there. Why does this happen and How can I fix this?

this is what happens when I hit the debug option