File list (Check if you may need any files):
piano
.....\nbproject
.....\.........\project.xml
.....\.........\project.properties
.....\.........\private
.....\.........\.......\private.properties
.....\.........\.......\private.xml
.....\.........\build-impl.xml
.....\.........\genfiles.properties
.....\src
.....\...\com
.....\...\...\j2medev
.....\...\...\.......\piano
.....\...\...\.......\.....\PianoMIDlet.java
.....\build.xml
.....\build
.....\.....\preprocessed
.....\.....\............\.timestamp
.....\.....\............\com
.....\.....\............\...\j2medev
.....\.....\............\...\.......\piano
.....\.....\............\...\.......\.....\PianoMIDlet.java
.....\.....\compiled
.....\.....\........\com
.....\.....\........\...\j2medev
.....\.....\........\...\.......\piano
.....\.....\........\...\.......\.....\PianoMIDlet$1.class
.....\.....\........\...\.......\.....\PianoMIDlet.class
.....\.....\........\...\.......\.....\PianoCanvas.class
.....\.....\before-obfuscation.jar
.....\.....\obfuscated.jar
.....\.....\obfuscated
.....\.....\..........\com
.....\.....\..........\...\j2medev
.....\.....\..........\...\.......\piano
.....\.....\..........\...\.......\.....\PianoMIDlet.class
.....\.....\..........\...\.......\.....\PianoMIDlet$1.class
.....\.....\..........\...\.......\.....\PianoCanvas.class
.....\.....\..........\META-INF
.....\.....\..........\........\MANIFEST.MF
.....\.....\preverified
.....\.....\...........\com
.....\.....\...........\...\j2medev
.....\.....\...........\...\.......\piano
.....\.....\...........\...\.......\.....\PianoMIDlet.class
.....\.....\...........\...\.......\.....\PianoMIDlet$1.class
.....\.....\...........\...\.......\.....\PianoCanvas.class
.....\.....\manifest.mf
.....\dist
.....\....\piano.jad
.....\....\piano.jar