### Question:
ConstantImpl extends ExpressionBase<T> implements Constant<T> { public static Constant<Boolean> create(boolean b) { return b ? Constants.TRUE : Constants.FALSE; } @SuppressWarnings("unchecked") //The class of the constant will mandate the type private  ConstantImpl(T constant); private  ConstantImpl(Class<T> type, T constant); static Constant<Boolean> create(boolean b); static Constant<Byte> create(byte i); static Constant<Character> create(char i); static Constant<Integer> create(int i); static Constant<Long> create(long i); static Constant<Short> create(short i); static Constant<T> create(T obj); static Constant<T> create(Class<T> type, T constant); @Override R accept(Visitor<R, C> v, C context); @Override boolean equals(Object o); @Override T getConstant();  }### Answer:
@Test public void create() { assertNotNull(ConstantImpl.create(true)); assertNotNull(ConstantImpl.create((byte) 1)); assertNotNull(ConstantImpl.create(ConstantImplTest.class)); assertNotNull(ConstantImpl.create(1)); assertNotNull(ConstantImpl.create(1L)); assertNotNull(ConstantImpl.create((short) 1)); assertNotNull(ConstantImpl.create("x")); }