The Memory is never enaught!!

Testing my Java program...

init:
deps-jar:
compile:
run:
javax.sound.midi.MidiUnavailableException: There is not enough memory available for this task. Quit one or more applications to increase available memory, and then try again.
at com.sun.media.sound.MidiInDevice.nOpen(Native Method)
at com.sun.media.sound.MidiInDevice.implOpen(MidiInDevice.java:45)
...