Bug fix for NPE when timer wasn't initialized
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@ -358,7 +358,7 @@ public abstract class TraversalEngine<M,T,WalkerType extends Walker<M,T>,Provide
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public void printOnTraversalDone() {
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printProgress(null, null, true);
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final double elapsed = timer.getElapsedTime();
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final double elapsed = timer == null ? 0 : timer.getElapsedTime();
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ReadMetrics cumulativeMetrics = engine.getCumulativeMetrics();
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