Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine

Question

I am facing this problem since more than a month  here is what I see when I run java on command line     java -Xmx1300m  Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine    If I run with less memory it works fine    java -Xmx1240m Usage  java  -options  class  args      to execute a class  or java  -options  -jar jarfile  args      to execute a jar file                I spent a week trying to debug this and nothing worked  Finally I had my IT support guys replace the laptop  This happened a month ago on 10 23  Now  after a month  the same problem is back on my new system   My system configuration is      Win 7 Enterprise  64-bit   Service Pack 1  Intel R  Core TM  i7-2640M   CPU   2 80GHz 8 00 GB RAM   Java  java version  1 5 0 20  Java TM  2 Runtime Environment  Standard Edition  build 1 5 0 20-b02  Java HotSpot TM  Client VM  build 1 5 0 20-b02  mixed mode    We are a team of about 30 guys here and I am the only one facing this  All others have almost the same config and working fine for them   An important observation is Java works fine for some time and then this problem appears once it appears it doesn t go away  even if I re-install java    I faced this issue the 3rd time after the IT support guys re-imaged by laptop  It worked for a month and now the same problem is back   Everybody is completely clueless  I have started using 2 laptops now   -

User · Answer

If your computer is a 64bit  all you need to do is uninstall your Java x86 version and install a 64bit version  I had the same problem and this worked  Nothing further needs to be done

User · Answer

Anyway  here is how to fix it   Go to Start- Control Panel- System- Advanced tab - Environment Variables- System Variables- New   Variable name   JAVA OPTIONS  Variable value  -Xmx512M  taken from this link

User · Answer

Sometimes it may happen that you run multiple applications on the same java VM  In Case you have tried all the other solutions described above and it didnt work  Try Running your process by running it on a newly created java VM by passing vmargs  -agentlib jdwp transport dt socket server y address 10049 suspend n      Here address is what the vm takes

User · Answer

you can do update the User path as inside   JAVA OPTIONS   -Xmx512M Path   C  Program Files  x86  Java jdk1 8 0 231 bin C  Program Files x86  Java jdk1 8 0 231 jre bin for now it is working

User · Answer

Thanks I changed heap space from 2000MB to 1024MB and it worked

User · Answer

This might also occur if you are running on 64-bit Machine with 32-bit JVM  JDK   switch it to 64-bit JVM  Check your  Right Click on My Computer --  Properties  Control Panel System and Security System --  Advanced System Settings -- Advanced Tab--  Environment Variables --  JAVA HOME

User · Answer

I ve just seen this problem myself  Jboss AS7 with jdk1 5 0 09  Update System Property JAVA HOME to jdk1 7  to fix  I m using jdk1 7 0 67

User · Answer

Eureka   Finally I found a solution on this   This is caused by Windows update that stops any 32-bit processes from consuming more than 1200 MB on a 64-bit machine  The only way you can repair this is by using the System Restore option  on Win 7   Start    All Programs    Accessories    System Tools    System Restore   And then restore to a date on which your Java worked fine  This worked for me  What is surprising here is Windows still pushes system updates under the name of  Critical Updates  even when you disable all windows updates    amp      Windows  -

[java] Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine

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