public void offer(final VertexProgram<?> vertexProgram) {
        try {
            this.pool.offer(vertexProgram, TIMEOUT_MS, TimeUnit.MILLISECONDS);
        } catch (final InterruptedException e) {
            throw new IllegalStateException(e.getMessage(), e);
        }
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/computer/util/VertexProgramPool.java