TopCoder Competition Engine - Arena Applet Startup Problem Analyze and Fix

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Challenge Overview

Currently, for SRM contest, the Arena client is the main tool for competing.

But when starting the arena applet, there is problem raised like

1397701991595 sending-> (com.topcoder.netCommon.contestantMessages.request.VerifyRequest) []
1397701992325 receiving-> (com.topcoder.netCommon.contestantMessages.response.VerifyResponse) [codelength = 3127]
1397701992686 sending-> (com.topcoder.netCommon.contestantMessages.request.VerifyResultRequest) [-127]
1397701993622 receiving-> (com.topcoder.netCommon.contestantMessages.response.VerifyResultResponse) [success = false]
1397701993625 sending-> (com.topcoder.netCommon.contestantMessages.request.ErrorReportRequest) [jvmVendor = Oracle Corporation, jvmVersion = 1.7.0_40, error = j
ava.lang.Exception
        at java.lang.Object.wait(Native Method)
        at com.topcoder.client.contestApplet.uilogic.panels.ContestSponsorPanel$
LoadThread.run(Unknown Source)
, ]

You can see the above problem in the console, when starting the arena applet by scripts.

Although, it is not causing any failure, but we'd like to see what is the root cause and how to fix that.

Arena VM

Before asking your own VM, you need to have a public key on your profile before asking for the VM.

You can find more details on how to generate a key http://apps.topcoder.com/wiki/display/projects/Generate+SSH+Key and how to connect using it http://apps.topcoder.com/wiki/display/projects/Connect+Using+SSH+Key.

To use the Arena VM, please follow http://apps.topcoder.com/wiki/display/docs/Competition+Engine+VM+Setup



Final Submission Guidelines

Submission Deliverables

Below is an overview of the deliverables:

  • Code analyze about the problem
  • Changed Code to fix that.

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Final Review

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Challenge links

ID: 30042023