File list (Check if you may need any files):
AndExpression.java
ArrayAccessExpression.java
ArrayExpression.java
AssignAddExpression.java
AssignBitAndExpression.java
AssignBitOrExpression.java
AssignBitXorExpression.java
AssignDivideExpression.java
AssignExpression.java
AssignMultiplyExpression.java
AssignOpExpression.java
AssignRemainderExpression.java
AssignShiftLeftExpression.java
AssignShiftRightExpression.java
AssignSubtractExpression.java
AssignUnsignedShiftRightExpression.java
BinaryArithmeticExpression.java
BinaryAssignExpression.java
BinaryBitExpression.java
BinaryCompareExpression.java
BinaryEqualityExpression.java
BinaryExpression.java
BinaryLogicalExpression.java
BinaryShiftExpression.java
BitAndExpression.java
BitNotExpression.java
BitOrExpression.java
BitXorExpression.java
BooleanExpression.java
BreakStatement.java
ByteExpression.java
CaseStatement.java
CastExpression.java
CatchStatement.java
CharExpression.java
CheckContext.java
CodeContext.java
CommaExpression.java
CompoundStatement.java
ConditionalExpression.java
ConditionVars.java
ConstantExpression.java
Context.java
ContinueStatement.java
ConvertExpression.java
DeclarationStatement.java
DivideExpression.java
DivRemExpression.java
DoStatement.java
DoubleExpression.java
EqualExpression.java
Expression.java
ExpressionStatement.java
ExprExpression.java
FieldExpression.java
FieldUpdater.java
FinallyStatement.java
FloatExpression.java
ForStatement.java
GreaterExpression.java
GreaterOrEqualExpression.java
IdentifierExpression.java
IfStatement.java
IncDecExpression.java
InlineMethodExpression.java
InlineNewInstanceExpression.java
InlineReturnStatement.java
InstanceOfExpression.java
IntegerExpression.java
IntExpression.java
LengthExpression.java
LessExpression.java
LessOrEqualExpression.java
LocalMember.java
LongExpression.java
MethodExpression.java
MultiplyExpression.java
NaryExpression.java
NegativeExpression.java
NewArrayExpression.java
NewInstanceExpression.java
Node.java
NotEqualExpression.java
NotExpression.java
NullExpression.java
OrExpression.java
PositiveExpression.java
PostDecExpression.java
PostIncExpression.java
PreDecExpression.java
PreIncExpression.java
RemainderExpression.java
ReturnStatement.java
ShiftLeftExpression.java
ShiftRightExpression.java
ShortExpression.java
Statement.java
StringExpression.java
SubtractExpression.java
SuperExpression.java