Remove tmp_dir

execute.py

@@ -156,7 +156,7 @@ def unsafe_execute_java(check_program, result, timeout):
             res = "failed: compilation error"
         else:
             try:
-                exec_result = subprocess.run([f'java', '-cp', tmp_dir, 'Main'], timeout=timeout, capture_output=True)
+                exec_result = subprocess.run([f'java', '-cp', '.', 'Main'], timeout=timeout, capture_output=True)
                 if exec_result.returncode == 0:
                     res = "passed"
                 elif exec_result.returncode == 1: