# Elasticsearch 2.3.1 docker - Plugin install giving issue's for me - ClassNotFoundException **URL:** \ **Category:** Search Guard\ **Created:** [May 12, 2016, 7:12pm UTC](https://forum.search-guard.com/t/elasticsearch-2-3-1-docker-plugin-install-giving-issues-for-me-classnotfoundexception/164 "2016-05-12T19:12:40Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Shawn\_Lee](https://avatars.discourse-cdn.com/v4/letter/s/c68b51/32.png) [@Shawn\_Lee](https://forum.search-guard.com/u/Shawn_Lee)\ **Post date:** [May 12, 2016, 7:12pm UTC](https://forum.search-guard.com/t/elasticsearch-2-3-1-docker-plugin-install-giving-issues-for-me-classnotfoundexception/164/1 "2016-05-12T19:12:40Z")
Hi, I’m getting a Could not find plugin class error after installing the search-guard-ssl plugin. I’m installing it into the base docker image using docker. I searched and didn’t find anyone else that has this exact issue like I’m having. I assume I’m missing something in the instructions. Here is my environment. OS X - 10.11.4 Docker version 1.11.0, build 4dc5990 Elasticsearch Version: 2.3.1, Build: bd98092/2016-04-04T12:25:05Z, JVM: 1.8.0\_72-internal Here are the commands I’m running and the output from each command. docker run -t -i elasticsearch /bin/bash cd /usr/share/elasticsearch bin/plugin install com.floragunn/search-guard-ssl/v2.3.1.8.1 → Installing com.floragunn/search-guard-ssl/v2.3.1.8.1… Trying [https://download.elastic.co/com.floragunn/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip](https://download.elastic.co/com.floragunn/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip) … Trying [https://search.maven.org/remotecontent?filepath=com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://search.maven.org/remotecontent?filepath=com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … Trying [https://oss.sonatype.org/service/local/repositories/releases/content/com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://oss.sonatype.org/service/local/repositories/releases/content/com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … Trying [https://github.com/com.floragunn/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/com.floragunn/search-guard-ssl/archive/v2.3.1.8.1.zip) … Trying [https://github.com/com.floragunn/search-guard-ssl/archive/master.zip](https://github.com/com.floragunn/search-guard-ssl/archive/master.zip) … ERROR: failed to download out of all possible locations…, use --verbose to get detailed information bin/plugin install floragunncom/search-guard-ssl/v2.3.1.8.1 → Installing floragunncom/search-guard-ssl/v2.3.1.8.1… Trying [https://download.elastic.co/floragunncom/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip](https://download.elastic.co/floragunncom/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip) … Trying [https://search.maven.org/remotecontent?filepath=floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://search.maven.org/remotecontent?filepath=floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … Trying [https://oss.sonatype.org/service/local/repositories/releases/content/floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://oss.sonatype.org/service/local/repositories/releases/content/floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … Trying [https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip) … Downloading …DONE Verifying [https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip) checksums if available … NOTE: Unable to verify checksum for downloaded plugin (unable to find .sha1 or .md5 file to verify) @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: plugin requires additional permissions @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ - java.lang.RuntimePermission accessClassInPackage.sun.misc - java.lang.RuntimePermission getClassLoader - java.lang.RuntimePermission loadLibrary.\* - java.lang.reflect.ReflectPermission suppressAccessChecks - java.security.SecurityPermission getProperty.ssl.KeyManagerFactory.algorithm See [Permissions in the JDK](http://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html) for descriptions of what these permissions allow and the associated risks. Continue with installation? [y/N]y Installed search-guard-ssl into /usr/share/elasticsearch/plugins/search-guard-ssl /etc/init.d/elasticsearch start …] Starting Elasticsearch Server:sysctl: setting key “vm.max\_map\_count”: Read-only file system . ok /etc/init.d/elasticsearch status [FAIL] elasticsearch is not running … failed! cat /var/log/elasticsearch/elasticsearch.log ElasticsearchException[Could not find plugin class [com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]]; nested: ClassNotFoundException[com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]; at org.elasticsearch.plugins.PluginsService.loadPluginClass(PluginsService.java:465) at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:431) at org.elasticsearch.plugins.PluginsService.(PluginsService.java:129) at org.elasticsearch.node.Node.(Node.java:158) at org.elasticsearch.node.Node.(Node.java:140) at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:143) at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:178) at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:270) at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35) Caused by: java.lang.ClassNotFoundException: com.floragunn.searchguard.ssl.SearchGuardSSLPlugin at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:814) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.elasticsearch.plugins.PluginsService.loadPluginClass(PluginsService.java:463) … 8 more ---
**Author:** ![searchguard\_google\_group](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.search-guard.com/searchguard_google_group/32/462_2.png) [@searchguard\_google\_group](https://forum.search-guard.com/u/searchguard_google_group)\ **Post date:** [May 12, 2016, 7:21pm UTC](https://forum.search-guard.com/t/elasticsearch-2-3-1-docker-plugin-install-giving-issues-for-me-classnotfoundexception/164/2 "2016-05-12T19:21:13Z")
"bin/plugin com.floragunn/search-guard-ssl/2.3.1.8.1" (not "com.floragunn/search-guard-ssl/v2.3.1.8.1" - omit the 'v' ) > **···** > > > Am 12.05.2016 um 21:12 schrieb Shawn Lee \: > > > > Hi, > > > > I'm getting a Could not find plugin class error after installing the search-guard-ssl plugin. I'm installing it into the base docker image using docker. I searched and didn't find anyone else that has this exact issue like I'm having. I assume I'm missing something in the instructions. > > > > Here is my environment. > > OS X - 10.11.4 > > Docker version 1.11.0, build 4dc5990 > > Elasticsearch Version: 2.3.1, Build: bd98092/2016-04-04T12:25:05Z, JVM: 1.8.0\_72-internal > > > > Here are the commands I'm running and the output from each command. > > > > docker run -t -i elasticsearch /bin/bash > > > > cd /usr/share/elasticsearch > > > > bin/plugin install com.floragunn/search-guard-ssl/v2.3.1.8.1 > >    -\> Installing com.floragunn/search-guard-ssl/v2.3.1.8.1... > >    Trying [https://download.elastic.co/com.floragunn/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip](https://download.elastic.co/com.floragunn/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip) ... > >    Trying [https://search.maven.org/remotecontent?filepath=com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://search.maven.org/remotecontent?filepath=com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) ... > >    Trying [https://oss.sonatype.org/service/local/repositories/releases/content/com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://oss.sonatype.org/service/local/repositories/releases/content/com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) ... > >    Trying [https://github.com/com.floragunn/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/com.floragunn/search-guard-ssl/archive/v2.3.1.8.1.zip) ... > >    Trying [https://github.com/com.floragunn/search-guard-ssl/archive/master.zip](https://github.com/com.floragunn/search-guard-ssl/archive/master.zip) ... > >    ERROR: failed to download out of all possible locations..., use --verbose to get detailed information > > > > bin/plugin install floragunncom/search-guard-ssl/v2.3.1.8.1 > > -\> Installing floragunncom/search-guard-ssl/v2.3.1.8.1... > >    Trying [https://download.elastic.co/floragunncom/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip](https://download.elastic.co/floragunncom/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip) ... > >    Trying [https://search.maven.org/remotecontent?filepath=floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://search.maven.org/remotecontent?filepath=floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) ... > >    Trying [https://oss.sonatype.org/service/local/repositories/releases/content/floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://oss.sonatype.org/service/local/repositories/releases/content/floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) ... > >    Trying [https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip) ... > >    Downloading .....................................................DONE > >    Verifying [https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip) checksums if available ... > >    NOTE: Unable to verify checksum for downloaded plugin (unable to find .sha1 or .md5 file to verify) > >    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ > >    @ WARNING: plugin requires additional permissions @ > >    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ > >    \* java.lang.RuntimePermission accessClassInPackage.sun.misc > >    \* java.lang.RuntimePermission getClassLoader > >    \* java.lang.RuntimePermission loadLibrary.\* > >    \* java.lang.reflect.ReflectPermission suppressAccessChecks > >    \* java.security.SecurityPermission getProperty.ssl.KeyManagerFactory.algorithm > >    See [Permissions in the JDK](http://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html) > >    for descriptions of what these permissions allow and the associated risks. > > > >    Continue with installation? [y/N]y > >    Installed search-guard-ssl into /usr/share/elasticsearch/plugins/search-guard-ssl > > > > /etc/init.d/elasticsearch start > >    ....] Starting Elasticsearch Server:sysctl: setting key "vm.max\_map\_count": Read-only file system > >    . ok > > > > /etc/init.d/elasticsearch status > >    [FAIL] elasticsearch is not running ... failed! > > > > cat /var/log/elasticsearch/elasticsearch.log > >    ElasticsearchException[Could not find plugin class [com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]]; nested: ClassNotFoundException[com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]; > >            at org.elasticsearch.plugins.PluginsService.loadPluginClass(PluginsService.java:465) > >            at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:431) > >            at org.elasticsearch.plugins.PluginsService.\(PluginsService.java:129) > >            at org.elasticsearch.node.Node.\(Node.java:158) > >            at org.elasticsearch.node.Node.\(Node.java:140) > >            at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:143) > >            at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:178) > >            at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:270) > >            at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35) > >    Caused by: java.lang.ClassNotFoundException: com.floragunn.searchguard.ssl.SearchGuardSSLPlugin > >            at java.net.URLClassLoader.findClass(URLClassLoader.java:381) > >            at java.lang.ClassLoader.loadClass(ClassLoader.java:424) > >            at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:814) > >            at java.lang.ClassLoader.loadClass(ClassLoader.java:357) > >            at org.elasticsearch.plugins.PluginsService.loadPluginClass(PluginsService.java:463) > >            ... 8 more > > > > -- > > You received this message because you are subscribed to the Google Groups "Search Guard" group. > > To unsubscribe from this group and stop receiving emails from it, send an email to search-guard+unsubscribe@googlegroups.com. > > To post to this group, send email to search-guard@googlegroups.com. > > To view this discussion on the web visit [https://groups.google.com/d/msgid/search-guard/af245b33-2c72-471a-a975-504601a54d88%40googlegroups.com\](https://groups.google.com/d/msgid/search-guard/af245b33-2c72-471a-a975-504601a54d88%40googlegroups.com%5C). > > For more options, visit [https://groups.google.com/d/optout\](https://groups.google.com/d/optout%5C). ---
**Author:** ![imre](https://avatars.discourse-cdn.com/v4/letter/i/bc8723/32.png) [@imre](https://forum.search-guard.com/u/imre)\ **Post date:** [June 2, 2016, 5:39pm UTC](https://forum.search-guard.com/t/elasticsearch-2-3-1-docker-plugin-install-giving-issues-for-me-classnotfoundexception/164/3 "2016-06-02T17:39:46Z")
I’m getting the same error using Docker and ES-SSL 2.3.3: /usr/share/elasticsearch/bin/plugin install --batch floragunncom/search-guard-ssl/2.3.3 Then starting up ES: Exception in thread “main” ElasticsearchException[Could not find plugin class [com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]]; nested: ClassNotFoundException[com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]; Likely root cause: java.lang.ClassNotFoundException: com.floragunn.searchguard.ssl.SearchGuardSSLPlugin ``` at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at org.elasticsearch.plugins.PluginsService.loadPluginClass(PluginsService.java:463) at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:431) at org.elasticsearch.plugins.PluginsService.(PluginsService.java:129) at org.elasticsearch.node.Node.(Node.java:158) at org.elasticsearch.node.Node.(Node.java:140) at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:143) at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:178) at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:270) at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35) ``` > **···** > > On Thursday, May 12, 2016 at 3:12:41 PM UTC-4, Shawn Lee wrote: > > > > > > Hi, > > > > > > I’m getting a Could not find plugin class error after installing the search-guard-ssl plugin. I’m installing it into the base docker image using docker. I searched and didn’t find anyone else that has this exact issue like I’m having. I assume I’m missing something in the instructions. > > > > > > Here is my environment. > > > OS X - 10.11.4 > > > Docker version 1.11.0, build 4dc5990 > > > Elasticsearch Version: 2.3.1, Build: bd98092/2016-04-04T12:25:05Z, JVM: 1.8.0\_72-internal > > > > > > Here are the commands I’m running and the output from each command. > > > > > > docker run -t -i elasticsearch /bin/bash > > > > > > cd /usr/share/elasticsearch > > > > > > bin/plugin install com.floragunn/search-guard-ssl/v2.3.1.8.1 > > > → Installing com.floragunn/search-guard-ssl/v2.3.1.8.1… > > > Trying [https://download.elastic.co/com.floragunn/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip](https://download.elastic.co/com.floragunn/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip) … > > > Trying [https://search.maven.org/remotecontent?filepath=com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://search.maven.org/remotecontent?filepath=com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … > > > Trying [https://oss.sonatype.org/service/local/repositories/releases/content/com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://oss.sonatype.org/service/local/repositories/releases/content/com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … > > > Trying [https://github.com/com.floragunn/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/com.floragunn/search-guard-ssl/archive/v2.3.1.8.1.zip) … > > > Trying [https://github.com/com.floragunn/search-guard-ssl/archive/master.zip](https://github.com/com.floragunn/search-guard-ssl/archive/master.zip) … > > > ERROR: failed to download out of all possible locations…, use --verbose to get detailed information > > > > > > bin/plugin install floragunncom/search-guard-ssl/v2.3.1.8.1 > > > → Installing floragunncom/search-guard-ssl/v2.3.1.8.1… > > > Trying [https://download.elastic.co/floragunncom/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip](https://download.elastic.co/floragunncom/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip) … > > > Trying [https://search.maven.org/remotecontent?filepath=floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://search.maven.org/remotecontent?filepath=floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … > > > Trying [https://oss.sonatype.org/service/local/repositories/releases/content/floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://oss.sonatype.org/service/local/repositories/releases/content/floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … > > > Trying [https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip) … > > > Downloading …DONE > > > Verifying [https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip) checksums if available … > > > NOTE: Unable to verify checksum for downloaded plugin (unable to find .sha1 or .md5 file to verify) > > > @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ > > > @ WARNING: plugin requires additional permissions @ > > > @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ > > > - java.lang.RuntimePermission accessClassInPackage.sun.misc > > > - java.lang.RuntimePermission getClassLoader > > > - java.lang.RuntimePermission loadLibrary.\* > > > - java.lang.reflect.ReflectPermission suppressAccessChecks > > > - java.security.SecurityPermission getProperty.ssl.KeyManagerFactory.algorithm > > > See [http://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html](http://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html) > > > for descriptions of what these permissions allow and the associated risks. > > > > > > Continue with installation? [y/N]y > > > Installed search-guard-ssl into /usr/share/elasticsearch/plugins/search-guard-ssl > > > > > > /etc/init.d/elasticsearch start > > > …] Starting Elasticsearch Server:sysctl: setting key “vm.max\_map\_count”: Read-only file system > > > . ok > > > > > > /etc/init.d/elasticsearch status > > > [FAIL] elasticsearch is not running … failed! > > > > > > cat /var/log/elasticsearch/elasticsearch.log > > > ElasticsearchException[Could not find plugin class [com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]]; nested: ClassNotFoundException[com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]; > > > at org.elasticsearch.plugins.PluginsService.loadPluginClass(PluginsService.java:465) > > > at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:431) > > > at org.elasticsearch.plugins.PluginsService.(PluginsService.java:129) > > > at org.elasticsearch.node.Node.(Node.java:158) > > > at org.elasticsearch.node.Node.(Node.java:140) > > > at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:143) > > > at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:178) > > > at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:270) > > > at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35) > > > Caused by: java.lang.ClassNotFoundException: com.floragunn.searchguard.ssl.SearchGuardSSLPlugin > > > at java.net.URLClassLoader.findClass(URLClassLoader.java:381) > > > at java.lang.ClassLoader.loadClass(ClassLoader.java:424) > > > at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:814) > > > at java.lang.ClassLoader.loadClass(ClassLoader.java:357) > > > at org.elasticsearch.plugins.PluginsService.loadPluginClass(PluginsService.java:463) > > > … 8 more ---
**Author:** ![searchguard\_google\_group](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.search-guard.com/searchguard_google_group/32/462_2.png) [@searchguard\_google\_group](https://forum.search-guard.com/u/searchguard_google_group)\ **Post date:** [June 3, 2016, 5:55am UTC](https://forum.search-guard.com/t/elasticsearch-2-3-1-docker-plugin-install-giving-issues-for-me-classnotfoundexception/164/4 "2016-06-03T05:55:35Z")
> I’m getting the same error using Docker and ES-SSL 2.3.3: > /usr/share/elasticsearch/bin/plugin install --batch floragunncom/search-guard-ssl/2.3.3 > > Then starting up ES: > > Exception in thread “main” ElasticsearchException[Could not find plugin class [com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]]; nested: ClassNotFoundException[com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]; > Likely root cause: java.lang.ClassNotFoundException: com.floragunn.searchguard.ssl.SearchGuardSSLPlugin > at java.net.URLClassLoader$1.run(URLClassLoader.java:366) > at java.net.URLClassLoader$1.run(URLClassLoader.java:355) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:354) > at java.lang.ClassLoader.loadClass(ClassLoader.java:425) > at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789) > at java.lang.ClassLoader.loadClass(ClassLoader.java:358) > at org.elasticsearch.plugins.PluginsService.loadPluginClass(PluginsService.java:463) > at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:431) > at org.elasticsearch.plugins.PluginsService.(PluginsService.java:129) > at org.elasticsearch.node.Node.(Node.java:158) > at org.elasticsearch.node.Node.(Node.java:140) > at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:143) > at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:178) > at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:270) > at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35) > > > > Hi, > > > > I’m getting a Could not find plugin class error after installing the search-guard-ssl plugin. I’m installing it into the base docker image using docker. I searched and didn’t find anyone else that has this exact issue like I’m having. I assume I’m missing something in the instructions. > > > > Here is my environment. > > OS X - 10.11.4 > > Docker version 1.11.0, build 4dc5990 > > Elasticsearch Version: 2.3.1, Build: bd98092/2016-04-04T12:25:05Z, JVM: 1.8.0\_72-internal > > > > Here are the commands I’m running and the output from each command. > > > > docker run -t -i elasticsearch /bin/bash > > > > cd /usr/share/elasticsearch > > > > bin/plugin install com.floragunn/search-guard-ssl/v2.3.1.8.1 > > → Installing com.floragunn/search-guard-ssl/v2.3.1.8.1… > > Trying [https://download.elastic.co/com.floragunn/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip](https://download.elastic.co/com.floragunn/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip) … > > Trying [https://search.maven.org/remotecontent?filepath=com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://search.maven.org/remotecontent?filepath=com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … > > Trying [https://oss.sonatype.org/service/local/repositories/releases/content/com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://oss.sonatype.org/service/local/repositories/releases/content/com/floragunn/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … > > Trying [https://github.com/com.floragunn/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/com.floragunn/search-guard-ssl/archive/v2.3.1.8.1.zip) … > > Trying [https://github.com/com.floragunn/search-guard-ssl/archive/master.zip](https://github.com/com.floragunn/search-guard-ssl/archive/master.zip) … > > ERROR: failed to download out of all possible locations…, use --verbose to get detailed information > > > > bin/plugin install floragunncom/search-guard-ssl/v2.3.1.8.1 > > → Installing floragunncom/search-guard-ssl/v2.3.1.8.1… > > Trying [https://download.elastic.co/floragunncom/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip](https://download.elastic.co/floragunncom/search-guard-ssl/search-guard-ssl-v2.3.1.8.1.zip) … > > Trying [https://search.maven.org/remotecontent?filepath=floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://search.maven.org/remotecontent?filepath=floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … > > Trying [https://oss.sonatype.org/service/local/repositories/releases/content/floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip](https://oss.sonatype.org/service/local/repositories/releases/content/floragunncom/search-guard-ssl/v2.3.1.8.1/search-guard-ssl-v2.3.1.8.1.zip) … > > Trying [https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip) … > > Downloading …DONE > > Verifying [https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip](https://github.com/floragunncom/search-guard-ssl/archive/v2.3.1.8.1.zip) checksums if available … > > NOTE: Unable to verify checksum for downloaded plugin (unable to find .sha1 or .md5 file to verify) > > @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ > > @ WARNING: plugin requires additional permissions @ > > @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ > > - java.lang.RuntimePermission accessClassInPackage.sun.misc > > - java.lang.RuntimePermission getClassLoader > > - java.lang.RuntimePermission loadLibrary.\* > > - java.lang.reflect.ReflectPermission suppressAccessChecks > > - java.security.SecurityPermission getProperty.ssl.KeyManagerFactory.algorithm > > See [http://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html](http://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html) > > for descriptions of what these permissions allow and the associated risks. > > > > Continue with installation? [y/N]y > > Installed search-guard-ssl into /usr/share/elasticsearch/plugins/search-guard-ssl > > > > /etc/init.d/elasticsearch start > > …] Starting Elasticsearch Server:sysctl: setting key “vm.max\_map\_count”: Read-only file system > > . ok > > > > /etc/init.d/elasticsearch status > > [FAIL] elasticsearch is not running … failed! > > > > cat /var/log/elasticsearch/elasticsearch.log > > ElasticsearchException[Could not find plugin class [com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]]; nested: ClassNotFoundException[com.floragunn.searchguard.ssl.SearchGuardSSLPlugin]; > > at org.elasticsearch.plugins.PluginsService.loadPluginClass(PluginsService.java:465) > > at org.elasticsearch.plugins.PluginsService.loadBundles(PluginsService.java:431) > > at org.elasticsearch.plugins.PluginsService.(PluginsService.java:129) > > at org.elasticsearch.node.Node.(Node.java:158) > > at org.elasticsearch.node.Node.(Node.java:140) > > at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:143) > > at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:178) > > at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:270) > > at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35) > > Caused by: java.lang.ClassNotFoundException: com.floragunn.searchguard.ssl.SearchGuardSSLPlugin > > at java.net.URLClassLoader.findClass(URLClassLoader.java:381) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:424) > > at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:814) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:357) > > at org.elasticsearch.plugins.PluginsService.loadPluginClass(PluginsService.java:463) > > … 8 more “bin/plugin com.floragunn/search-guard-ssl/2.3.3.10” as described here [GitHub - floragunncom/search-guard-ssl: Search Guard SSL Plugin](https://github.com/floragunncom/search-guard-ssl/wiki) and [https://github.com/floragunncom/search-guard-ssl-docs](https://github.com/floragunncom/search-guard-ssl-docs) > **···** > > > On Thursday, May 12, 2016 at 3:12:41 PM UTC-4, Shawn Lee wrote: > > On Thursday, 2 June 2016 19:39:46 UTC+2, i…@…d wrote: