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java.lang.IllegalArgumentException: null	at java.util.concurrent.LinkedBlockingDeque.(LinkedBlockingDeque.java:181)	at com.puppetlabs.puppetserver.pool.JRubyPool.(JRubyPool.java:26)	at puppetlabs.services.jruby.jruby_puppet_internal$instantiate_free_pool.invoke(jruby_puppet_internal.clj:60)	at puppetlabs.services.jruby.jruby_puppet_internal$eval24401$create_pool_from_config__24402$fn__24406.invoke(jruby_puppet_internal.clj:166)	at puppetlabs.services.jruby.jruby_puppet_internal$eval24401$create_pool_from_config__24402.invoke(jruby_puppet_internal.clj:162)	at puppetlabs.services.jruby.jruby_puppet_core$eval25234$create_pool_context__25235$fn__25236.invoke(jruby_puppet_core.clj:223)	at puppetlabs.services.jruby.jruby_puppet_core$eval25234$create_pool_context__25235.invoke(jruby_puppet_core.clj:212)	at puppetlabs.services.jruby.jruby_puppet_service$reify__25604$service_fnk__4363__auto___positional$reify__25615.init(jruby_puppet_service.clj:39)