"java.lang.NullPointerException: Cannot invoke method getFile () on null object" during build test #33 Closed g0blin79 opened on May 26, 2019 ...

The error 500: Java.lang.nullpointerexception is an error that is faced by some developers when executing their code. Moreover, end-users also encounter ...

Internal error: java.lang.NullPointerException: Cannot invoke "java.util.concurrent.CompletableFuture.thenRun(java.lang.Runnable)" because "this.initializeFuture" is null ...

Ever come across the null pointer exception in Java? We explain what this error message means, why it happens, and how to avoid the billion-dollar mistake.