JMeter的Beanshell这段代码为啥报错

Question

for(int i=1;i<=10;i++){
str1=vars.getObject("result").get(i).get("client_id");

 ThreadName:线程组1-1
 SAMPLSTA 202-01-2620:14:55 GMT+08:00
 LOADTIME: 6
 CONNECT TIME: 0
 ATENCY:0
 Sizeinbytes:0
 Sent bytes:0
 Headers size in bytes:0
 Body size in bytes:0
 SAMPLE COUNT 1
 ERROR COUNT 1
 DATATYPE (TEXTTBINT TEXT
 Responsemessage:org.apachejorphan.util.JMeterE                                                                       SOURCED fE:                  ON OF TOR(INT=1:<=10:++)                                                                MEtHO
 nvocationget
 ResPONse Headers
 SampleResltfields
 CONTENTTYPE:
 DATAENCODINGNU

str2=vars.getObject("result").get(i).get("fund_account");
log.info(str1);
log.info(str2);
}