ValueType () { java.lang.Object value = this.fieldName.get(); if (value == null) { synchronized (this.fieldName) { value = this.fieldName.get(); if (value == null) { final ValueType actualValue = new ValueType(); value = actualValue == null ? this.fieldName : actualValue; this.fieldName.set(value); } } } return (ValueType) (value == this.fieldName ? null : value); }