SAP ABAP中调用JAVA文件

DATA para TYPE string.
PARAMETER mytext TYPE objectname.
PARAMETER mytext1 TYPE objectname.

para = 'Test'. "class name

CONCATENATE para mytext mytext1 INTO para SEPARATED BY space.

CALL METHOD cl_gui_frontend_services=>execute
EXPORTING
application = 'JAVA' "需要执行的语言
parameter = para "参数
default_directory = 'D:\' "路径
minimized = 'X'
synchronous = 'WAIT'
operation = 'OPEN'
EXCEPTIONS
cntl_error = 1
error_no_gui = 2
bad_parameter = 3
file_not_found = 4
path_not_found = 5
file_extension_unknown = 6
error_execute_failed = 7
synchronous_failed = 8
not_supported_by_gui = 9
OTHERS = 10.
*
*
WRITE 'Success'.