when trying to start eclipse, i receive the message in the image.
when trying to start other instance of eclipse, i receive a message saying: "failed to create the java virtual machine".
How can i solve it?
try starting eclipse with -clean option
./eclipse -clean
If it still doesn't start check ".log" file for error. This file should be located in "workspace/.metadata" folder. Publish error from log to your question.
Also check Java version and JAVA_HOME and PATH on your system are set accordingly. Java version should be at least 1.5
The message "failed to create the java virtual machine" usually implies the failure to allocate enough memory for starting the JVM. This is often due to unavailability of sufficient contiguous free memory in RAM, or incorrect min and max heap sizes.
From the screenshot, it appears that the problem might not be with the min and max heap sizes, so you might want to take a look at the amount of free memory available when starting Eclipse (although that is no indicator of whether all free memory is contiguous).
To begin fixing this issue, you could start Eclipse from the command-line and observe the error messages reported if any. Then you could proceed to calibrate the JVM settings that are better suited to your installation (heavy plugins will require more memory), or change to another JVM.
See also
Why does Eclipse crash with Xmx, XX:MaxPermSize above certain values?
What are the best JVM settings for Eclipse?
Go to C:\Program Files\Java\jre6\bin\client\ and make sure that jvm.dll exists there.
Either way, you might want to try re-installing or updating Java on your machine.
To modify file eclipse/eclipse.ini, try a smaller number in attribute -Xmx, and restart.
Check your version of Java. Oracle accidentally broke Eclipse when they updated the vendor field from 'Sun Microsystems' to 'Oracle'.
http://insideria.com/2010/08/oracle-breaks-eclipse-and-flex.html
Oracle was nice enough to change it back and release an update, which fixes Eclipse.
I had a similar problem when I installed JDK 64-bit version with an install of Eclipse 32-bit (didn't realize it until much searching and searching). Simple solution, but a shot none-the-less.
Related
I'm using the eclipse neon IDE and I put it on the path: /opt/eclipse/eclipse and i am using Ubuntu 16.04 and Java 8. The problem is that when I write in the eclipse editor, this is going too slow. For example, I just typed and in the editor it still does not end.
How can I solve it?
Thx!
Try Netbeans, or IntelliJ IDEA.
A quick browse over the Interwebs shows that quite a lot of people are complaining about Eclipse slowness. Some have every manner of trick and configuration change to help speed it up. OK, you can put yourself thru all that hassle if you want, or, you can just switch to something that already works fine out of the box.
I had Eclipse Oxygen for PHP running on a CentOS 7 VM with 2G allocated RAM. I admit, that's pretty low memory, but that's the way it has to be right now. Eclipse ran so slowly, I finally gave up and killed the process from the command line.
I installed the latest Netbeans 8.2, and it not only installed more cleanly (no Java error messages, and it put an icon on the desktop), it ran PERFECTLY without changing a thing!
I eventually changed a couple of parameters, but the point is, I didn't need to change a thing to get decent performance. Even on a low-ram system, it ran plenty fast enough.
Don't blame the hardware. Not everybody has the money to buy the latest and greatest and fastest machines available, and software developers should not expect it. With some exceptions, if your application can not run adequately on 2G of ram, you are doing something wrong.
The Eclipse developers are doing something terribly wrong.
I had faced a similar issue with eclipse oxygen.
After a some research over different forums I found the following solution.
Step 1 : Open eclipse.ini file. If you find difficulty in locating the file, see this question Where's the location of the eclipse.ini file?
Step 2 : In eclipse.ini search for below 2 variables
-Xms
-Xmx
Xms indicates minimum ram that should be allocated to eclipse.
Xmx indicates maximum ram that should be allocated to eclipse.
Step 3 :Increment both the values. You can set the value as per your choice. Below is my preference.
-Xms512m
-Xmx2048m
Here
m indicates megabytes, if you don't specify m it will consider bytes by default.
The easiest thing to do would be to re-install eclipse, and if that does not work you could try to download an older version of eclipse. It could also be slow because your computer is slow.
I have a Java app installed with Install4j.
The app started failing with the dreaded error "The JVM could not be started. The maximum heap size (-Xmx) might be too large or an antivirus or firewall tool could block the execution"
After investigation it turned out that Java did an automatic upgrade from 8.111 to 8.131 and install4j was still going to the old version. The fix was to edit \.install4j\inst_jre.cfg and change the contents from
c:\program files (x86)\java\jre1.8.0_111
to
c:\program files (x86)\java\jre1.8.0_131
However, that is not a very user friendly thing to have to do. Is there any way to have the install use something more flexible? Like going through C:\ProgramData\Oracle\Java\javapath? Or anything else.
Thanks
I am getting below error on starting SonarQube:
Error occured during initialixation of VM: Could not reserve enough space for memory heap
Also modified wrapper.conf underSonarQube conf folder, but didn't work.
Also changed java version: Java 8 to Java 7, didn't work
You do not enough available memory to run SonarQube. Try closing some applications.
If this is not enough check whether SonarQube's startup script specifies the amount of memory required, e.g. with options like -Xms=??? -Xmx=???. These indicate roughly the minimum and maximum amount of memory Java will acquire. Note the actual values and check with the task manager if you have enough memory available.
Issue was with version mismatch of plugins installed in sonarqube. I deleted jars for all plugins except java. This solved the issue.
I figured it out from sonar.log
Thanks
Its due to lack of memory. if you are trying that with ANT try the following
set ANT_OPTS=-XX:MaxPermSize=128m
I was trying to make a Minecraft server and got the following error on startup:
Error occured during initialization of VM
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine
Error: A fatal exception has occurred. Program will exit.
I tried everything I could find: I created CLASS and CLASSPATH environmental variables that went to my Java's bin folder. I re-installed java, making sure it was 64 bit, as my computer is. Still, I get this error. Does anyone know a solution?
You are attempting to allocate more RAM than your system will allow you to allocate.
In your startup script, lower the values of your Xmx/Xms arguments.
Run the JVM with -XX:MaxHeapSize=256m (or any big number), and possibly -Xmx512m
I've actually noticed this issue when you try and take a dump of a service running java.
Try using psexec -s to execute your dump
I'm not sure why this seems to work on some servers and not others
I had this same error. Running the cmd as Administrator resolved it.
I encountered this error when I was trying to build selenium webdriver. as suggested above by Rogue that we need to reduce the allocated memory in the arguments.
I changed java heap size arguments as below
java $JAVA_OPTS -Xmx256m -XX:MaxPermSize=512m -XX:ReservedCodeCacheSize=256m -jar third_party/jruby/jruby-complete.jar -X-C -S rake $*
I also faced this issue by My IntellijIDEA allocate more jvm memory space than system allocated.
My issued is resolved through just uninstall the JDK and install it again.
It happened to me also. My eclipse would not run. Uninstalled and reinstalled eclipse like 3 time and no luck. Came to this question during a google search, and Yasir's answer helped me out, because I also had IntelliJ installed into my DEV BOX recently. So deleted C:\Program Files\Java folder and reinstalled java into default install folder and it worked. I also had jdk in my system path from previous setup.
My issue was resolved after I reinstalled latest version of JDK.
Background
As this is the first question I have posted, I will try to break it down as well as possible, and I apologize for any incorrect formats. I should also point out that I am brand-new to Linux, Tomcat, and Java (all within the last few weeks), so if you do have an answer please dumb it down as much as you can. Thanks!
This question is actually several questions, but I feel the issues are somehow related so I will include them all. As for my environment, I am running an EC2 Amazon Linux instance. Details returned using
cat /proc/version are:
Linux version 2.6.35.14-97.44.amzn1.x86_64
(mockbuild#build-31006.build)
(gcc version 4.4.5 20110214 (Red Hat 4.4.5-6) (GCC)
java -version gives me:
java version "1.6.0_29" Java(TM) SE Runtime Environment (build
1.6.0_29-b11)
Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02, mixed mode)
Issue(s)
What would allow me to stop/restart Tomcat sometimes, but not
others? After I change configuration parameters and need to restart
Tomcat, I use /etc/init.d/tomcat6 restart or service tomcat6
restart with varying degrees of success: sometimes the nice green
OK, others the red FAILED. There seems to be no rhyme or reason to
why it works sometimes and not others. When it doesn't work I check
the status with service tomcat6 status, which yields something
like tomcat6 (pid ####) is running. Also worth noting is that my
Putty SSH session slows down significantly at the same time whenever
I am unable to stop Tomcat. I literally have to wait for each keystroke to be processed!
I cannot use any of the JVM-specific -XX parameters. I get an error
every time of Could not create the Java virtual machine. Of the
threads I've read about this, most surround heap memory allocation
issues, but I don't think that's my problem because when I run java
-XX, which should give me a list of available commands just like java -X does, I simply get:
Unrecognized option: -XX Could not create the Java virtual machine.
I should note that I had at least two versions of Java on this OS- it came with Open JDK, but I needed Sun Java as that was recommended for performance in Geoserver (which is the whole point of me learning all this). I read that it is not an issue to have two versions, as long as my JAVA_HOME path points to the correct directory, but is it possible that it was still somehow looking at something from the original configuration? That's what I thought, so to rule it out I did a yum remove java, which erased the original version (along with Tomcat due to the dependency, but whatevs, I can get it back later), ran java -version to make sure I still had the version I wanted. I did, then ran java -XX, hoping that it magically fixed itself after cleaning house with the unwanted OpenJDK removal, but NOPE, same error as before.
Conclusions
I am now assuming that there was no issue with old paths. I've also tried changing my JAVA_HOME variable to the appropriate path (/usr/java/jre1.6.0_29) in every conceivable location:
in bash_profile
in bashrc
java.conf
tomcat6.conf (well, before I deleted Tomcat, that is)
probably some other files. It's all a blur really.
export JAVA_HOME in the shell
... all with zero impact, with the exception of using export JAVA_HOME=/usr/java/jre1.6.0_29. Every time I ran echo $JAVA_HOME I would still get the original JAVA_HOME path, which I'm pretty sure is not what I want. Even when resetting the variable was successful (via export in the shell), I still got my -XX error. I also tried setting some JAVA_OPTS parameters, specifically for memory settings, then ran an echo $JAVA_OPTS that returned nothing.
I have spent a solid two days on this and am about ready to give up. I would really like to avoid reinstalling and reconfiguring a whole bunch of stuff if possible, not to mention I don't even know if that would fix my problem, but I would really, really like to know WHY I having these issues and whether or not they're related, so if any of you have suggestions on this or anything in general that I'm doing incorrectly, please let me know. Thanks!
I can't help you with the first issue but in regard to your second issue: "I cannot use any of the JVM-specific -XX parameters.":
the environment variable CATALINA_OPTS is used by tomcat when starting the JVM. So if you want to use 512mb of heap and 128mb of perm gen space you can issue the follwing command on a bash shell to start tomcat with some custom java options.
#> CATALINA_OPTS="$CATALINA_OPTS -Xmx512m -XX:MaxPermSize=128m" $TOMCAT_HOME/bin/catalina.sh run
you can also change the default parameters by changing CATALINA_OPTS in tomcat's startup script or you can add the paramenter to your environment (e.g. $HOME/.bashrc).
hope that helps.