TKG parses TRSS data Unexpected token END OF FILE at position 0

```
00:38:13.630 Attempting to get test duration data from TRSS.
00:38:13.630 curl --silent --max-time 120 -L https://trssrtp1.fyre.ibm.com/api/getTestAvgDuration?limit=10&jdkVersion=22&impl=j9&platform=aarch64_linux&group=jck&level=extended
00:38:14.057 Warning: cannot parse data from TRSS.
00:38:14.057 Unexpected token END OF FILE at position 0.
00:38:14.057 at org.json.simple.parser.JSONParser.parse(JSONParser.java:257)
00:38:14.057 at org.json.simple.parser.JSONParser.parse(JSONParser.java:92)
00:38:14.057 at org.testKitGen.TestDivider.parseDuration(TestDivider.java:162)
00:38:14.057 at org.testKitGen.TestDivider.getDataFromTRSS(TestDivider.java:241)
00:38:14.057 at org.testKitGen.TestDivider.createDurationQueue(TestDivider.java:270)
00:38:14.057 at org.testKitGen.TestDivider.divideTests(TestDivider.java:393)
00:38:14.057 at org.testKitGen.TestDivider.generateLists(TestDivider.java:414)
00:38:14.057 at org.testKitGen.MainRunner.genParallelList(MainRunner.java:74)
00:38:14.057 at org.testKitGen.MainRunner.main(MainRunner.java:38)
00:38:14.057 Attempting to get test duration data from cached files.
00:38:14.057 Reading file: Test_openjdk22_j9_jck_aarch64_linux.json
```

[link](https://hyc-runtimes-jenkins.swg-devops.com/job/Test_openjdk22_j9_extended.jck_aarch64_linux/31/console)

Start in TestDivider.java at parseDuration (line 162) and getDataFromTRSS (line 241), then reproduce the curl request shown in the issue to inspect the returned data. Compare the TRSS response with the cached-file fallback named in the log; done means the duration-data path no longer reports an unexpected end-of-file for this case.

Written by the indexing model from the issue text.