public String getConsoleContents() {
    return besuNodeRunner.getConsoleContents();
  }
If no capture was started an empty string is returned. After the call the original System.err
and out are restored.

@return The console output since startConsoleCapture() was called.
acceptance-tests/dsl/src/main/java/org/hyperledger/besu/tests/acceptance/dsl/node/cluster/Cluster.java