title: Facing issue while building Corda Version 1
body: <p>I am getting below error while building Corda Version 1 (branch name - release-V1)</p>
  
  <blockquote>
    <p>Task :core:test</p>
  </blockquote>
  
  <p>net.corda.core.flows.ContractUpgradeFlowTest > 2 parties contract upgrade using RPC FAILED
      java.util.concurrent.TimeoutException at ContractUpgradeFlowTest.kt:123</p>
  
  <p>329 tests completed, 1 failed</p>
  
  <p>FAILURE: Build failed with an exception.</p>
  
  <p>Please help...</p>