# Can't install x-pack for logstash 6.0 **URL:** \ **Category:** Logstash\ **Created:** [October 20, 2017, 4:11pm UTC](https://discuss.elastic.co/t/cant-install-x-pack-for-logstash-6-0/104733 "2017-10-20T16:11:50Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Cornoualis](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cornoualis/32/23246_2.png) [@Cornoualis](https://discuss.elastic.co/u/Cornoualis)\ **Post date:** [October 20, 2017, 4:11pm UTC](https://discuss.elastic.co/t/cant-install-x-pack-for-logstash-6-0/104733/1 "2017-10-20T16:11:50Z")
Hi, I tried to install x-pack for logstash 6.0 using the command "logstash-plugin install x-pack" and I have the following errors: ``` ⇒ ./logstash-plugin install x-pack Java HotSpot(TM) 64-Bit Server VM warning: Option UseParNewGC was deprecated in version 9.0 and will likely be removed in a future release. Java HotSpot(TM) 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release. WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.jruby.util.io.FilenoUtil to method sun.nio.ch.SelChImpl.getFD() WARNING: Please consider reporting this to the maintainers of org.jruby.util.io.FilenoUtil WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release LoadError: load error: jopenssl/load -- java.lang.StringIndexOutOfBoundsException: begin 0, end 3, length 1 require at org/jruby/RubyKernel.java:955 require at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/vendor/jruby/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:59
at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/vendor/jruby/lib/ruby/stdlib/openssl.rb:1 require at org/jruby/RubyKernel.java:955 (root) at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/vendor/jruby/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:1
at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/vendor/jruby/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:59 require at org/jruby/RubyKernel.java:955 (root) at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/vendor/jruby/lib/ruby/stdlib/rubygems/security.rb:12
at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/vendor/jruby/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:1 require at org/jruby/RubyKernel.java:955 require at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/vendor/jruby/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:59
at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/vendor/jruby/lib/ruby/stdlib/rubygems/package.rb:44 require at org/jruby/RubyKernel.java:955 (root) at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/vendor/jruby/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:1
at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/vendor/jruby/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:59 ``` Thanks in advance for your help! ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [October 25, 2017, 4:05am UTC](https://discuss.elastic.co/t/cant-install-x-pack-for-logstash-6-0/104733/2 "2017-10-25T04:05:48Z")
What java version are you running? ---
**Author:** ![Cornoualis](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cornoualis/32/23246_2.png) [@Cornoualis](https://discuss.elastic.co/u/Cornoualis)\ **Post date:** [October 25, 2017, 9:09am UTC](https://discuss.elastic.co/t/cant-install-x-pack-for-logstash-6-0/104733/3 "2017-10-25T09:09:25Z")
java -version java version "9" Java(TM) SE Runtime Environment (build 9+181) Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode) ---
**Author:** ![TimV](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/timv/32/13162_2.png) [@TimV](https://discuss.elastic.co/u/TimV)\ **Post date:** [October 25, 2017, 9:25am UTC](https://discuss.elastic.co/t/cant-install-x-pack-for-logstash-6-0/104733/4 "2017-10-25T09:25:54Z")
We do not currently support running Logstash or Elasticsearch on Java 9. [https://www.elastic.co/support/matrix#matrix\_jvm](https://www.elastic.co/support/matrix#matrix_jvm) Although the matrix doesn't list 6.0 yet (because it's not officially released), it will not support Java 9 in the initial release. ---
**Author:** ![Cornoualis](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cornoualis/32/23246_2.png) [@Cornoualis](https://discuss.elastic.co/u/Cornoualis)\ **Post date:** [October 25, 2017, 2:41pm UTC](https://discuss.elastic.co/t/cant-install-x-pack-for-logstash-6-0/104733/5 "2017-10-25T14:41:07Z")
Thank you Tim! ---
**Author:** ![Cornoualis](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cornoualis/32/23246_2.png) [@Cornoualis](https://discuss.elastic.co/u/Cornoualis)\ **Post date:** [October 30, 2017, 12:26pm UTC](https://discuss.elastic.co/t/cant-install-x-pack-for-logstash-6-0/104733/6 "2017-10-30T12:26:30Z")
I tried again with a lower version of java (1.8.0\_152), and now I have the following errors: ⇒ ./logstash-plugin install x-pack Unhandled Java exception: java.lang.NullPointerException java.lang.NullPointerException: null put at java/util/Hashtable.java:460 setProperty at java/util/Properties.java:166 setProperty at java/lang/System.java:796 invoke at java/lang/reflect/Method.java:498 invokeDirectWithExceptionHandling at org/jruby/javasupport/JavaMethod.java:468 invokeStaticDirect at org/jruby/javasupport/JavaMethod.java:370 apply\_env\_proxy\_settings at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/lib/pluginmanager/proxy\_support.rb:40 configure\_proxy at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/lib/pluginmanager/proxy\_support.rb:71 at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/lib/pluginmanager/main.rb:26 runInterpreter at org/jruby/Ruby.java:845 runInterpreter at org/jruby/Ruby.java:849 runNormally at org/jruby/Ruby.java:752 runNormally at org/jruby/Ruby.java:765 runFromMain at org/jruby/Ruby.java:578 doRunFromMain at org/jruby/Main.java:417 internalRun at org/jruby/Main.java:305 run at org/jruby/Main.java:232 main at org/jruby/Main.java:204 ---
**Author:** ![Cornoualis](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cornoualis/32/23246_2.png) [@Cornoualis](https://discuss.elastic.co/u/Cornoualis)\ **Post date:** [November 8, 2017, 4:42pm UTC](https://discuss.elastic.co/t/cant-install-x-pack-for-logstash-6-0/104733/7 "2017-11-08T16:42:52Z")
Any idea? ---
**Author:** ![jordansissel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jordansissel/32/44957_2.png) [@jordansissel](https://discuss.elastic.co/u/jordansissel)\ **Post date:** [November 13, 2017, 5:25pm UTC](https://discuss.elastic.co/t/cant-install-x-pack-for-logstash-6-0/104733/8 "2017-11-13T17:25:13Z")
The error you get is a bug which is masking a configuration problem, based on my testing. Recommendation: Check your environment for any `HTTP_PROXY` or `HTTPS_PROXY` (or lowercase versions, `http_proxy` and `https_proxy`) and make sure the values in these environment variables are URLs. The problem, I believe, is that you have an environment variable that is telling Logstash to use a HTTP proxy, but the value in this variable is not valid (according to logstash). I can reproduce your error by doing this: ```auto http_proxy="something" bin/logstash-plugin install x-pack ``` This passes `http_proxy="something"` as an environmet variable. Logstash expects this value `something` to be a URL. In this case, it is not a URL. The bug which obscures the configuration error: The stack trace indicates (to me) that this NullPointerException happens while trying to set something on a Properties object. The first stack entry with code we control is this: > apply\_env\_proxy\_settings at /home/cornoualis/ElasticStack6/logstash-6.0.0-rc1/lib/pluginmanager/proxy\_support.rb:5408: This line of code is: ```auto java.lang.System.setProperty("#{scheme}.proxyHost", settings[:host]) ``` The error you get seems to be a bug, possibly due to configuration issues. the `settings[:host]` value is `nil` (null, in Java), and this causes Java to throw this exception. Logstash takes the `http_proxy` environment variable and parses it as a URL, which succeeds, but makes the 'host' a nil/null value. (Weird). I'll file a bug about this, but hopefully the details I gave above about how to resolve this will help you. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [December 11, 2017, 5:25pm UTC](https://discuss.elastic.co/t/cant-install-x-pack-for-logstash-6-0/104733/9 "2017-12-11T17:25:14Z")
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