I have downloaded the Apple Developer certificate and also configured the Safari Extension in my framework. Now, when I start executing the script, the Browser is launched, it is performing few actions and then it is throwing the following error.
(Note: I am using selenium-server-standalone-2.31.0.jar)
Mar 5, 2013 3:59:13 PM org.openqa.selenium.safari.SafariDriverServer start
INFO: Server started on port 5674
Mar 5, 2013 3:59:33 PM org.openqa.selenium.safari.SafariDriverChannelHandler$1 operationComplete
INFO: Connection opened
Mar 5, 2013 3:59:45 PM org.jboss.netty.channel.SimpleChannelUpstreamHandler
WARNING: EXCEPTION, please implement org.openqa.selenium.safari.SafariDriverChannelHandler.exceptionCaught() for proper handling.
java.io.IOException: An existing connection was forcibly closed by the remote host
at sun.nio.ch.SocketDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(Unknown Source)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(Unknown Source)
at sun.nio.ch.IOUtil.read(Unknown Source)
at sun.nio.ch.SocketChannelImpl.read(Unknown Source)
at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:59)
at org.jboss.netty.channel.socket.nio.AbstractNioWorker.processSelectedKeys(AbstractNioWorker.java:465)
at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:332)
at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:35)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Mar 5, 2013 3:59:46 PM org.openqa.selenium.safari.SafariDriverServer stop
INFO: Stopping server
I encountered the same error after calling safariDriver.quit(). It turns out that SafariDriver didn't close the socket even though it knew that it was going to terminate. To fix the issue, I've adjusted the behavior of the QUIT command, and included the patch with my PR for another feature related to the Safari Driver: https://github.com/SeleniumHQ/selenium/pull/87.
The actual fix is quite straightforward, view it at https://github.com/Rob--W/selenium/commit/2b53d4b61.
Want to implement this fix yourself? Follow the following steps:
Install the pre-requisites (available for Linux, Mac and Windows):
Java Development Kit (JDK, not just the JRE)
Ruby
Git
Clone the Selenium repository:
git clone https://code.google.com/p/selenium/
Apply my commit.
At the root of the Selenium repository, run the following command:
./go selenium-server-standalone offline=true
(if you're using Windows, omit ./ :)
go selenium-server-standalone offline=true
Wait a while. The initial build takes several minutes, subsequent builds are done within a minute. The desired result is found in the following directory (relative to the repository's root):
build/java/server/src/org/openqa/grid/selenium/selenium-standalone.jar
Related
What doesn't work
I'm trying to setup WSL2 GUI environment under the latest version Windows Insider Preview. Gedit and Thunar worked fine but when I tried to run GoLand it gave me the following error
Start Failed
Failed to initialize graphics environment
java.awt.AWTError: Can't connect to X11 window server using ':0' as the value of the DISPLAY variable.
at java.desktop/sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
at java.desktop/sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:102)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.desktop/sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:61)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:315)
at java.desktop/java.awt.GraphicsEnvironment$LocalGE.createGE(GraphicsEnvironment.java:101)
at java.desktop/java.awt.GraphicsEnvironment$LocalGE.<clinit>(GraphicsEnvironment.java:83)
at java.desktop/java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:129)
at java.desktop/sun.awt.X11.XToolkit.<clinit>(XToolkit.java:233)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:315)
at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:588)
at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:583)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.desktop/java.awt.Toolkit.getDefaultToolkit(Toolkit.java:582)
at java.desktop/java.awt.Toolkit.getEventQueue(Toolkit.java:1499)
at java.desktop/java.awt.EventQueue.invokeLater(EventQueue.java:1318)
at com.intellij.idea.StartupUtil.lambda$scheduleInitUi$9(StartupUtil.java:347)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665)
at java.base/java.lang.Thread.run(Thread.java:829)
-----
Your JRE: 11.0.11+9-b1341.57 amd64 (JetBrains s.r.o.)
/home/ubuntu/executables/GoLand-2021.1.3/jbr
I'm using WSL2 - Ubuntu-20.04, Windows 11 build 22000.100
What works
start VcXSrv in Windows
$DISPLAY is set to $WINDOWS_IPADDR:0, startxfce4 in wsl2
start GoLand in VcXSrv window
Everything works fine
p.s. I defined a environment variable WINDOWS_IPADDR=$(cat /etc/resolv.conf | grep nameserver | cut -d ' ' -f 2).
What I have tried
I've tried Pycharm and Idea and both of them displayed the same error.
export DISPLAY=localhost:0 && goland.sh gives the same error.
export DISPLAY=0:0 && goland.sh gives the same error.
export DISPLAY=$WINDOWS_IPADDR:0 && goland.sh will not show this error, but nothing happened.
I tried to install a new openjdk-11 which might be different from openjdk-11-jdk-headless but it didn't change the JRE path used by IntelliJ-idea/GoLand/PyCharm, which is always IDE_INSTALL_PATH/jbr, e.g. goland alwayws use jre in /home/ubuntu/executables/GoLand-2021.1.3/jbr
I'm not familiar with X11 or X-Server so I tried searching for similar issues but few is related. I'm think it might be some kind of compatibility issue with WSLg.
Does anyone know how to fix this error? Any and all help/direction is appreciated.
UPDATE:
I install a new distro and everything just magically work now. However, I mistakenly deleted the original distro so I cannot test it anymore. I guess WSLg cannot work very well with gnome & xfce4 as I've installed both desktop environments in WSL. Think twice before you want to install multiple desktops!
I want to create a Windows script that runs a Kettle transformation (.ktr).
First, I tried to run my script but it does nothing.
After that, I decided to try it by cmd, but it still is not working. It outputs a ClassNotFoundException:
Exception in thread "main" java.lang.ClassNotFoundException: org.pentaho.di.pan.Pan/file:C:\data-integration\UpdateDBUrgencies.ktr
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.pentaho.commons.launcher.Launcher.main(Launcher.java:87)
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
The cmd line I run is:
pan.bat /file:"C:\data-integration\UpdateDBUrgencies.ktr" /level:Basic
All I want is to have an script that executes UpdateDBUrgencies.ktr, so it can be run everyday using cron of Windows. How do I have to do it? Where is the problem in my command line?
Thanks for your help.
As a personal experience with .BAT for running .KJB's on windows, i had several issues when using /file or /level, try changing your commandline for:
Pan.bat -file:C:/data-integration/UpdateDBUrgencies.ktr "-level:Basic"
I have begun using this format of command line for all my batches and it's been working without erros, i'm using version 5.3 though, i don't know if there are major differences in command line paramaters and such on newer versions.
I installed IntelliJ IDEA 15.0.1 Community Edition but when I run the application, it displays me the following error message:
Internal error. Please report to http://jb.gg/ide/critical-startup-errors
java.lang.IllegalStateException: failed to create a child event loop
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:81)
at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:50)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:72)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:58)
at org.jetbrains.io.BuiltInServer.start(BuiltInServer.java:78)
at com.intellij.idea.SocketLock$2.call(SocketLock.java:131)
at com.intellij.idea.SocketLock$2.call(SocketLock.java:112)
at com.intellij.idea.SocketLock.underLocks(SocketLock.java:155)
at com.intellij.idea.SocketLock.lock(SocketLock.java:112)
at com.intellij.idea.StartupUtil.lockSystemFolders(StartupUtil.java:263)
at com.intellij.idea.StartupUtil.prepareAndStart(StartupUtil.java:101)
at com.intellij.idea.MainImpl.start(MainImpl.java:34)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.ide.plugins.PluginManager$2.run(PluginManager.java:90)
at java.lang.Thread.run(Thread.java:745)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:127)
at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:119)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:97)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:31)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:77)
... 17 more
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)
at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)
at java.nio.channels.Pipe.open(Pipe.java:155)
at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:127)
at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:125)
... 21 more
Caused by: java.io.IOException: An existing connection was forcibly closed by the remote host
at sun.nio.ch.SocketDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
at sun.nio.ch.IOUtil.read(IOUtil.java:197)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:139)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83)
... 29 more
The IDE doesn't boot up afterwards. It always worked flawlessly before but recently I have been getting this same error when trying to compile a Java project with IDEA version 14.5. After a clean installation of 15.0.1 it still doesn't work. It becomes quite obvious that the problem must be due to something I installed in the meantime but what could affect IntelliJ IDEA in such a way? I'm on Windows 10 and using AVAST!. I tried disabling my Antivirus and Firewall but it didn't help. I also submitted a bug report. Eclipse still runs and compiles Java code just fine.
It does seem to be AVAST! related. Maybe try to reinstall or deinstall it?
https://youtrack.jetbrains.com/issue/IDEA-146929
https://bugs.mojang.com/browse/MC-34749
I was having the same issue. Disable your firewall or check your security settings.
your firewall and antivirus program is blocking the android studio so remove antivirus program or add android studio.exe in allowed list this helped me
The solution is really easy. You just need to delete all .androidstudio* folders from appdata folder on your PC. Note that i don't know if this folder contains anything important.
Yeah it is a problem with Avast security! I was using studio fine until one day my computer kept slowing down. I read that having 2 anti virus softwares can slow down your pc so i tried installing avast and just stick with Windows Defender. Avast cannot properly uninstall now the software is corrupted or something cause it wont start up. If you can get rid of Avast you will be good to go.
Restarting Windows works for me. But I think it is related to the firewall.
It happened after I closed a Windows Firewall dialogue asking me if another app (Everything.exe) can access the network (workplace, private or public) without response. After I restarted Windows, IntelliJ could launch normally.
I am stuck at square one of trying to profile my app using JProfiler. I am trying to use "jpenable" on RHEL6, but when I select my VM, it simply crashes to the desktop as follows:
Please select the profiling mode:
GUI mode (attach with JProfiler GUI) [1, Enter]
Offline mode (use config file to set profiling settings) [2]
1
Please enter a profiling port
[31757]
java.lang.NoSuchMethodError: javax.xml.parsers.SAXParserFactory.setSchema(Ljavax/xml/validation/Schema;)V
at org.jdom2.input.sax.XMLReaders.<init>(XMLReaders.java:124)
at org.jdom2.input.sax.XMLReaders.<clinit>(XMLReaders.java:95)
at org.jdom2.input.SAXBuilder.<init>(SAXBuilder.java:338)
at org.jdom2.input.SAXBuilder.<init>(SAXBuilder.java:221)
at com.jprofiler.a.h.a(ejt:500)
<snip so StackOverflow allows the post>
at com.jprofiler.a.i.g.a(ejt:38)
at com.jprofiler.frontend.attach.c.a(ejt:243)
at com.jprofiler.frontend.EnableApplication.a(ejt:118)
at com.jprofiler.frontend.EnableApplication.g(ejt:81)
at com.jprofiler.frontend.EnableApplication.main(ejt:238)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.exe4j.runtime.LauncherEngine.launch(Unknown Source)
at com.install4j.runtime.launcher.Launcher.main(Unknown Source)
Any suggestions on what to do? I installed JProfiler 8.0.5 (the current version) from the RPM and simply entered the jpenable command. Everything else is shown above. This is a rather old RHEL6 image, but I cannot upgrade to a more recent one.
I am at a loss for what to try next.
Any help would be greatly appreciated,
Mike
This is because of a conflicting version of one of the following files
xml-apis.jar
xmlParserAPIs.jar
xercesImpl-x.x.x.jar
jaxp-api.jar
in the extension directory ($JAVA_HOME/lib/ext) of the JRE. You would have to remove that file.
I am trying to build my project using Jenkins to deploy the artifacts to the nexus. I have a Jenkins setup on my macOSX.
below is the error, I am getting:
Parsing POMs
[maventest] $
/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java
-Xmx512m -XX:MaxPermSize=128m -Dfile.encoding=UTF-8 -cp /Users/Shared/Jenkins/Home/plugins/maven-plugin/WEB-INF/lib/maven3-agent-1.3.jar:/usr/share/maven/boot/plexus-classworlds-2.4.jar
org.jvnet.hudson.maven3.agent.Maven3Main /usr/share/maven
/Users/Shared/Jenkins/Home/war/WEB-INF/lib/remoting-2.26.jar
/Users/Shared/Jenkins/Home/plugins/maven-plugin/WEB-INF/lib/maven3-interceptor-1.3.jar
59985
<===[JENKINS REMOTING CAPACITY]===>channel started
channel stopped
ERROR: Failed to parse POMs java.io.IOException: Remote call on
Channel to Maven
[/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java,
-Xmx512m, -XX:MaxPermSize=128m, -Dfile.encoding=UTF-8, -cp, /Users/Shared/Jenkins/Home/plugins/maven-plugin/WEB-INF/lib/maven3-agent-1.3.jar:/usr/share/maven/boot/plexus-classworlds-2.4.jar,
org.jvnet.hudson.maven3.agent.Maven3Main, /usr/share/maven,
/Users/Shared/Jenkins/Home/war/WEB-INF/lib/remoting-2.26.jar,
/Users/Shared/Jenkins/Home/plugins/maven-plugin/WEB-INF/lib/maven3-interceptor-1.3.jar,
59985] failed at hudson.remoting.Channel.call(Channel.java:727) at
hudson.maven.ProcessCache$MavenProcess.call(ProcessCache.java:156) at
hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:770)
at
hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:586)
at hudson.model.Run.execute(Run.java:1593) at
hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:491) at
hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:247) Caused by:
java.lang.InternalError: Can't connect to window server - not enough
permissions. at java.lang.ClassLoader$NativeLibrary.load(Native
Method) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1827)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1724) at
java.lang.Runtime.loadLibrary0(Runtime.java:823) at
java.lang.System.loadLibrary(System.java:1045) at
sun.security.action.LoadLibraryAction.run(LoadLibraryAction.java:50)
at java.security.AccessController.doPrivileged(Native Method) at
java.awt.Toolkit.loadLibraries(Toolkit.java:1605) at
java.awt.Toolkit.(Toolkit.java:1627) at
java.awt.Color.(Color.java:263) at
hudson.util.ColorPalette.(ColorPalette.java:39) at
hudson.model.BallColor.(BallColor.java:56) at
hudson.model.Result.(Result.java:51) at
java.lang.Class.forName0(Native Method) at
java.lang.Class.forName(Class.java:171) at
com.sun.proxy.$Proxy8.(Unknown Source) at
sun.reflect.GeneratedSerializationConstructorAccessor41.newInstance(Unknown
Source) at
java.lang.reflect.Constructor.newInstance(Constructor.java:513) at
java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:929) at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1759)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1969)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1775)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:349)
at java.util.HashMap.readObject(HashMap.java:1030) at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597) at
java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:979)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1775)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1969)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1775)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:349)
at hudson.remoting.UserRequest.deserialize(UserRequest.java:182) at
hudson.remoting.UserRequest.perform(UserRequest.java:98) at
hudson.remoting.UserRequest.perform(UserRequest.java:48) at
hudson.remoting.Request$2.run(Request.java:326) at
hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138) at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:680) Finished: FAILURE
I already tried the below solution but it didn't work:
http://jenkins-ci.361315.n4.nabble.com/JIRA-Created-HUDSON-5584-java-io-IOException-Remote-call-on-Channel-to-Maven-td1475049.html
Configurations I have:
MAVEN_OPTS:-Xmx1024m
-XX:MaxPermSize=128m
-Dfile.encoding=UTF-8
-Djava.awt.headless=true
output of ps -ef | grep java: /usr/bin/java -Djava.awt.headless=true -jar /Applications/Jenkins/jenkins.war
build command:clean deploy -DaltDeploymentRepository=central::default::http://<user>:<pwd>#<host>:<port>/nexus/content/groups/public/
The solution I used was to apply Java 7. What you want to do is add 1.7 to Jenkins. Following these steps I was able to successfully build my project:
Go to the Oracle Java page and downloaded the 1.7_51 jdk for Mac.
Opened the dmg and ran the executable.
On the Mac, this installs the JDK to /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/
In Jenkins, go to 'Manage Jenkins' > 'Configure System'
Under the JDK heading, click the button that says JDK Installations
Under Name type 'JDK 1.7.0_51'
For JAVA_HOME type '/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/'
Select Save
Go to your project and select Configure
You should now have a JDK drop down near the top of the page.
Select the JDK you just configured under 'Manage Jenkins'
Run the build
After doing this, my build successfully ran without the 'Can't connect to window server - not enough permissions error.'
This line looks curious:
hudson.model.Executor.run(Executor.java:247) Caused by: java.lang.InternalError:
Can't connect to window server - not enough permissions. at java.lang.ClassLoader
$NativeLibrary.load(Native Method)
I would start with a simpler project, and then add complexity from that point, for the reason of just testing to make sure your basic assumptions are correct.
You might need to set the JVM property : -Djava.awt.headless=true . By doing that you will disable the (most likely unnecessary) gui libraries that are trying to load.