decodeCertificate raises the following error

[svaderia]

java.lang.ArrayIndexOutOfBoundsException: Index 6 out of bounds for length 6
	at iudx.catalogue.apiserver.APIServerVerticle.decodeCertificate(APIServerVerticle.java:238)
	at iudx.catalogue.apiserver.APIServerVerticle.create(APIServerVerticle.java:335)
	at io.vertx.ext.web.impl.RouteImpl.handleContext(RouteImpl.java:225)
	at io.vertx.ext.web.impl.RoutingContextImplBase.iterateNext(RoutingContextImplBase.java:120)
	at io.vertx.ext.web.impl.RoutingContextImpl.next(RoutingContextImpl.java:133)
	at io.vertx.ext.web.handler.impl.BodyHandlerImpl$BHandler.doEnd(BodyHandlerImpl.java:231)
	at io.vertx.ext.web.handler.impl.BodyHandlerImpl$BHandler.end(BodyHandlerImpl.java:211)
	at io.vertx.ext.web.handler.impl.BodyHandlerImpl.lambda$handle$0(BodyHandlerImpl.java:74)
	at io.vertx.core.http.impl.HttpServerRequestImpl.handleEnd(HttpServerRequestImpl.java:417)
	at io.vertx.core.http.impl.Http1xServerConnection.handleEnd(Http1xServerConnection.java:482)
	at io.vertx.core.http.impl.Http1xServerConnection.handleContent(Http1xServerConnection.java:477)
	at io.vertx.core.http.impl.Http1xServerConnection.processMessage(Http1xServerConnection.java:458)
	at io.vertx.core.http.impl.Http1xServerConnection.handleMessage(Http1xServerConnection.java:144)
	at io.vertx.core.http.impl.HttpServerImpl$ServerHandlerWithWebSockets.handleMessage(HttpServerImpl.java:728)
	at io.vertx.core.http.impl.HttpServerImpl$ServerHandlerWithWebSockets.handleMessage(HttpServerImpl.java:619)
	at io.vertx.core.net.impl.VertxHandler.lambda$channelRead$1(VertxHandler.java:146)
	at io.vertx.core.impl.ContextImpl.lambda$wrapTask$2(ContextImpl.java:337)
	at io.vertx.core.impl.TaskQueue.run(TaskQueue.java:76)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:834)