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public static void main(String[] args) {
UnCertainParam ucp = new UnCertainParam();
ucp.m1(null);
ucp.m1(null, null);
ucp.m1(null, null, null);
}
public void m1(String str1, String str2, String ...strings) {
System.out.println("m1");
}
public void m1(String str1, String ...strings) {
System.out.println("m2");
}