C:\Documents and Settings\Ze\Ambiente de trabalho>java -jar shake.jar
java.lang.NullPointerException
        at com.sun.media.sound.StandardMidiFileReader.getSequence(Unknown Source
)
        at javax.sound.midi.MidiSystem.getSequence(Unknown Source)
        at com.sun.media.sound.SoftMidiAudioFileReader.getAudioInputStream(Unkno
wn Source)
        at javax.sound.sampled.AudioSystem.getAudioInputStream(Unknown Source)
        at operation.MainWindowOperations.prepareAudio(MainWindowOperations.java
:90)
        at operation.MainWindowOperations.<init>(MainWindowOperations.java:80)
        at graphics.LaunchGraphics.<init>(LaunchGraphics.java:25)
        at run.RunApp.main(RunApp.java:14)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoa
der.java:58)