Upload add-on throws errors

[Nenad Grozdanic]

I'm trying to install Xray Test Management 3.1.7 on my Jira Server.
I find the app on Atlassian Marketplace and the Trial sends me to Atlassian's website to download a jar file.
When I upload to my Jira Server I get the "installing" popup and it gets stuck there.

The logs are filled with errors as shown below.

When I killed the process after a looong time I noticed that the Xray menu appears in Add-ons section. However there's no way for me to remove the addon and I can't input the trial license anywhere. Clicking on the addon in "Manage Apps" only shows the "Free Trial" button.

atlassian-jira.log

2018-10-04 10:02:11,341 http-nio-8080-exec-1 ERROR anonymous 602x261x1 pwig1c 127.0.0.1 /s/50d1c3c9c68f16c24e5f393c067bf471-CDN/-u7adc3/710003/6411e0087192541a09d88223fb51a6a0/7fba1ed99aeab9b09ccf0f5bc045a220/_/download/contextbatch/css/jira.global.look-and-feel,-_super/batch.css [o.a.c.c.C.[.[localhost].[/].[file-server]] Servlet.service() for servlet file-server threw exception
java.lang.RuntimeException: org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
    at com.atlassian.plugin.cache.filecache.impl.StreamsCache.streamFromFile(StreamsCache.java:113)
    at com.atlassian.plugin.cache.filecache.impl.OneStreamCache.stream(OneStreamCache.java:54)
    at com.atlassian.plugin.cache.filecache.impl.FileCacheImpl.cache(FileCacheImpl.java:87)
    at com.atlassian.plugin.webresource.impl.http.Controller.sendCachedInProduction(Controller.java:319)
    at com.atlassian.plugin.webresource.impl.http.Controller.sendCached(Controller.java:282)
    at com.atlassian.plugin.webresource.impl.http.Controller.serveResources(Controller.java:222)
    at com.atlassian.plugin.webresource.impl.http.Controller.serveBatch(Controller.java:84)
    at com.atlassian.plugin.webresource.impl.http.Router$5.apply(Router.java:78)
    at com.atlassian.plugin.webresource.impl.http.Router$5.apply(Router.java:71)
    at com.atlassian.plugin.webresource.impl.support.http.BaseRouter.callHandler(BaseRouter.java:169)
    at com.atlassian.plugin.webresource.impl.support.http.BaseRouter.dispatch(BaseRouter.java:144)
    at com.atlassian.plugin.webresource.servlet.PluginResourceDownload.serveFile(PluginResourceDownload.java:65)
    at com.atlassian.plugin.servlet.AbstractFileServerServlet.doGet(AbstractFileServerServlet.java:28)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    ... 44 filtered
    at com.atlassian.web.servlet.plugin.request.RedirectInterceptingFilter.doFilter(RedirectInterceptingFilter.java:21)
    ... 39 filtered
    at com.atlassian.jira.security.JiraSecurityFilter.lambda$doFilter$0(JiraSecurityFilter.java:66)
    ... 1 filtered
    at com.atlassian.jira.security.JiraSecurityFilter.doFilter(JiraSecurityFilter.java:64)
    ... 20 filtered
    at com.atlassian.jira.servermetrics.CorrelationIdPopulatorFilter.doFilter(CorrelationIdPopulatorFilter.java:30)
    ... 12 filtered
    at com.atlassian.jira.servermetrics.MetricsCollectorFilter.doFilter(MetricsCollectorFilter.java:25)
    ... 7 filtered
    at com.atlassian.jira.plugin.webresource.CachingResourceDownloadRewriteRule$1.execute(CachingResourceDownloadRewriteRule.java:60)
    at org.tuckey.web.filters.urlrewrite.RewrittenUrlClass.doRewrite(RewrittenUrlClass.java:61)
    ... 6 filtered
    at com.atlassian.jira.servermetrics.CorrelationIdPopulatorFilter.doFilter(CorrelationIdPopulatorFilter.java:30)
    ... 10 filtered
    at com.atlassian.web.servlet.plugin.request.RedirectInterceptingFilter.doFilter(RedirectInterceptingFilter.java:21)
    ... 4 filtered
    at com.atlassian.web.servlet.plugin.LocationCleanerFilter.doFilter(LocationCleanerFilter.java:36)
    ... 26 filtered
    at com.atlassian.jira.servermetrics.MetricsCollectorFilter.doFilter(MetricsCollectorFilter.java:25)
    ... 23 filtered
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
    at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:340)
    at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:303)
    at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:109)
    at com.atlassian.plugin.cache.filecache.impl.StreamsCache.streamFromFile(StreamsCache.java:111)
    ... 221 more
    at sun.nio.ch.FileDispatcherImpl.write0(Native Method)
    at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47)
    at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
    at sun.nio.ch.IOUtil.write(IOUtil.java:65)
    at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
    ... 12 filtered
    ... 224 more
2018-10-04 10:02:11,346 http-nio-8080-exec-1 ERROR      [o.a.c.c.C.[.[localhost].[/].[noopservlet]] Servlet.service() for servlet [noopservlet] in context with path [] threw exception
java.lang.RuntimeException: org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
    at com.atlassian.plugin.cache.filecache.impl.StreamsCache.streamFromFile(StreamsCache.java:113)
    at com.atlassian.plugin.cache.filecache.impl.OneStreamCache.stream(OneStreamCache.java:54)
    at com.atlassian.plugin.cache.filecache.impl.FileCacheImpl.cache(FileCacheImpl.java:87)
    at com.atlassian.plugin.webresource.impl.http.Controller.sendCachedInProduction(Controller.java:319)
    at com.atlassian.plugin.webresource.impl.http.Controller.sendCached(Controller.java:282)
    at com.atlassian.plugin.webresource.impl.http.Controller.serveResources(Controller.java:222)
    at com.atlassian.plugin.webresource.impl.http.Controller.serveBatch(Controller.java:84)
    at com.atlassian.plugin.webresource.impl.http.Router$5.apply(Router.java:78)
    at com.atlassian.plugin.webresource.impl.http.Router$5.apply(Router.java:71)
    at com.atlassian.plugin.webresource.impl.support.http.BaseRouter.callHandler(BaseRouter.java:169)
    at com.atlassian.plugin.webresource.impl.support.http.BaseRouter.dispatch(BaseRouter.java:144)
    at com.atlassian.plugin.webresource.servlet.PluginResourceDownload.serveFile(PluginResourceDownload.java:65)
    at com.atlassian.plugin.servlet.AbstractFileServerServlet.doGet(AbstractFileServerServlet.java:28)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    ... 44 filtered
    at com.atlassian.web.servlet.plugin.request.RedirectInterceptingFilter.doFilter(RedirectInterceptingFilter.java:21)
    ... 39 filtered
    at com.atlassian.jira.security.JiraSecurityFilter.lambda$doFilter$0(JiraSecurityFilter.java:66)
    ... 1 filtered
    at com.atlassian.jira.security.JiraSecurityFilter.doFilter(JiraSecurityFilter.java:64)
    ... 20 filtered
    at com.atlassian.jira.servermetrics.CorrelationIdPopulatorFilter.doFilter(CorrelationIdPopulatorFilter.java:30)
    ... 12 filtered
    at com.atlassian.jira.servermetrics.MetricsCollectorFilter.doFilter(MetricsCollectorFilter.java:25)
    ... 7 filtered
    at com.atlassian.jira.plugin.webresource.CachingResourceDownloadRewriteRule$1.execute(CachingResourceDownloadRewriteRule.java:60)
    at org.tuckey.web.filters.urlrewrite.RewrittenUrlClass.doRewrite(RewrittenUrlClass.java:61)
    ... 6 filtered
    at com.atlassian.jira.servermetrics.CorrelationIdPopulatorFilter.doFilter(CorrelationIdPopulatorFilter.java:30)
    ... 10 filtered
    at com.atlassian.web.servlet.plugin.request.RedirectInterceptingFilter.doFilter(RedirectInterceptingFilter.java:21)
    ... 4 filtered
    at com.atlassian.web.servlet.plugin.LocationCleanerFilter.doFilter(LocationCleanerFilter.java:36)
    ... 26 filtered
    at com.atlassian.jira.servermetrics.MetricsCollectorFilter.doFilter(MetricsCollectorFilter.java:25)
    ... 23 filtered
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
    at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:340)
    at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:303)
    at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:109)
    at com.atlassian.plugin.cache.filecache.impl.StreamsCache.streamFromFile(StreamsCache.java:111)
    ... 221 more
    at sun.nio.ch.FileDispatcherImpl.write0(Native Method)
    at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47)
    at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
    at sun.nio.ch.IOUtil.write(IOUtil.java:65)
    at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
    ... 12 filtered
    ... 224 more
2018-10-04 10:02:12,628 http-nio-8080-exec-12 WARN romanos_a 602x274x2 pwig1c 127.0.0.1 /rest/plugins/1.0/installed-marketplace [c.a.upm.pac.PacClientImpl] Update check request may take longer because of the number of apps

[Jack Brickey]

I would suggest reaching out to the addon's support if you have not already.

[Nenad Grozdanic]

I can't open a ticket because I don't even have a Trial license with them.
Also I've observed this behavior with other apps (e.g Zephyr).