user10283830
user10283830

Reputation:

IntelliJ says build failed and through Nullpointer Exception

The project shows zero errors at compile time but when it starts to execute during build it crashes and says:

Build Output

Module project_name production java.lang.NullPointerException: null elements are not allowed in THashSet

But the same project start working properly when I change its directory from D to C drive. Why this happen I'm unable to solve. Please help!

After comment this code it starts working and after disabling comment with no change in code it also works fine.

// if main db not loaded
if (!Get_db_path.Main_not_found && Db_Connect.conn == null) {
    Sel_db.connect();  // selected database
    Sel_db_error();
}   // display error
Main_db_error(Get_db_path.Main_not_found);

GetToggleStatus();

Upvotes: 0

Views: 2919

Answers (1)

RichArt
RichArt

Reputation: 1672

This happened suddenly to me at compile time when running the main method. I solved it in Intellj by just rebuilding the project.

--> Go to the Build menu and click on Rebuild Project.

Next time you run the main method it should just work again.


Btw: I had this problem in another context: writing to ByteArrayOutputStream with PrintWriter.

Upvotes: 6

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