Intermittent failure in io.vertx.ext.web.templ.HandlebarsTemplateTest.testTemplateJsonArrayResolverError

[tsegismont]

Starting test: HandlebarsTemplateTest#testTemplateJsonArrayResolverError 
Unexpected exception in route 
com.github.jknack.handlebars.HandlebarsException: src/test/filesystemtemplates/test-handlebars-template6.hbs:1:19: java.lang.NumberFormatException: For input string: "bar"
    src/test/filesystemtemplates/test-handlebars-template6.hbs:1:19
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
	at java.lang.Integer.parseInt(Integer.java:580)
	at java.lang.Integer.valueOf(Integer.java:766)
	at io.vertx.ext.web.templ.impl.JsonArrayValueResolver.resolve(JsonArrayValueResolver.java:50)
	at com.github.jknack.handlebars.Context$CompositeValueResolver.resolve(Context.java:150)
	at com.github.jknack.handlebars.internal.path.PropertyPath.eval(PropertyPath.java:52)
	at com.github.jknack.handlebars.Context$PathExpressionChain.next(Context.java:287)
	at com.github.jknack.handlebars.internal.path.PropertyPath.eval(PropertyPath.java:52)
	at com.github.jknack.handlebars.Context$PathExpressionChain.next(Context.java:287)
	at com.github.jknack.handlebars.Context$PathExpressionChain.eval(Context.java:302)
	at com.github.jknack.handlebars.Context.get(Context.java:530)
	at com.github.jknack.handlebars.internal.Variable.merge(Variable.java:171)
	at com.github.jknack.handlebars.internal.BaseTemplate.apply(BaseTemplate.java:128)
	at com.github.jknack.handlebars.internal.TemplateList.merge(TemplateList.java:94)
	at com.github.jknack.handlebars.internal.BaseTemplate.apply(BaseTemplate.java:128)
	at com.github.jknack.handlebars.internal.BaseTemplate.apply(BaseTemplate.java:116)
	at com.github.jknack.handlebars.internal.ForwardingTemplate.apply(ForwardingTemplate.java:100)
	at io.vertx.ext.web.templ.impl.HandlebarsTemplateEngineImpl.render(HandlebarsTemplateEngineImpl.java:79)
	at io.vertx.ext.web.handler.impl.TemplateHandlerImpl.handle(TemplateHandlerImpl.java:44)
	at io.vertx.ext.web.handler.impl.TemplateHandlerImpl.handle(TemplateHandlerImpl.java:28)
	at io.vertx.ext.web.impl.RouteImpl.handleContext(RouteImpl.java:217)
	at io.vertx.ext.web.impl.RoutingContextImplBase.iterateNext(RoutingContextImplBase.java:78)
	at io.vertx.ext.web.impl.RoutingContextImpl.next(RoutingContextImpl.java:118)
	at io.vertx.ext.web.templ.HandlebarsTemplateTest.lambda$testTemplateJsonArrayResolverError$3(HandlebarsTemplateTest.java:106)
	at io.vertx.ext.web.impl.RouteImpl.handleContext(RouteImpl.java:217)
	at io.vertx.ext.web.impl.RoutingContextImplBase.iterateNext(RoutingContextImplBase.java:78)
	at io.vertx.ext.web.impl.RoutingContextImpl.next(RoutingContextImpl.java:118)
	at io.vertx.ext.web.impl.RouterImpl.accept(RouterImpl.java:79)
	at io.vertx.core.http.impl.ServerConnection.handleRequest(ServerConnection.java:285)
	at io.vertx.core.http.impl.ServerConnection.processMessage(ServerConnection.java:429)
	at io.vertx.core.http.impl.ServerConnection.handleMessage(ServerConnection.java:131)
	at io.vertx.core.http.impl.HttpServerImpl$ServerHandler.lambda$createConnAndHandle$1(HttpServerImpl.java:763)
	at io.vertx.core.impl.ContextImpl.lambda$wrapTask$2(ContextImpl.java:335)
	at io.vertx.core.impl.ContextImpl.executeFromIO(ContextImpl.java:193)
	at io.vertx.core.http.impl.HttpServerImpl$ServerHandler.createConnAndHandle(HttpServerImpl.java:757)
	at io.vertx.core.http.impl.HttpServerImpl$ServerHandler.doMessageReceived(HttpServerImpl.java:621)
	at io.vertx.core.http.impl.HttpServerImpl$ServerHandler.doMessageReceived(HttpServerImpl.java:573)
	at io.vertx.core.http.impl.VertxHttpHandler.channelRead(VertxHttpHandler.java:76)
	at io.vertx.core.net.impl.VertxHandler.channelRead(VertxHandler.java:122)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:341)
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293)
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:341)
	at io.vertx.core.http.impl.HttpServerImpl$Http1xOrHttp2Handler.http1(HttpServerImpl.java:1064)
	at io.vertx.core.http.impl.HttpServerImpl$Http1xOrHttp2Handler.channelRead(HttpServerImpl.java:1035)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:341)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1334)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:926)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:129)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:642)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:565)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:479)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:441)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NumberFormatException: For input string: "bar"
	... 63 more

java.lang.NullPointerException: null
	at io.vertx.ext.web.templ.HandlebarsTemplateTest.testTemplateJsonArrayResolverError(HandlebarsTemplateTest.java:111)