Commons Lang、StandardToStringStyle#setContentStart
import org.apache.commons.lang.builder.StandardToStringStyle; public class C2009073100 { public static void main(String[] args) { StandardToStringStyle x = new StandardToStringStyle(); System.out.println(x.getContentStart()); x.setContentStart("{"); System.out.println(x.getContentStart()); } }
で、
[ {