rotations fix
scenario moved from DS to VisPanel
symetric drawing of intervals in interval tree
copyright corretion
code style issues
redundant type casts removed
performance issue - manual array copy
performance issue - redundant string constructor call
performance issue

String concatenation as argument to 'StringBuffer.append()' call
Control flow issues - Pointless boolean expression
Control flow issues - Redundant 'if' statement
Control flow issues - Unnecessary 'return' statement
Declaration redundancy - Declaration access can be weaker
Declaration redundancy - Declaration can have final modifier
Declaration redundancy

 Empty method, Method returns the same value, Unused method parameters, Unused method return value
General - Variable is assigned to itself
Java language level migration aids - 'for' loop replaceable with 'for each'
Java language level migration aids - 'StringBuffer' may be 'StringBuilder'
J2ME issues - 'if' statement may be replaced with && or || expression
errors fixed