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Hello I have got problem I was reading about some solutions and tried some of them and they helped a little. When i was starting Jboss Developer Studio or Eclipse Luna (32bit) I had error could not create Java Virtual Machine. Then in system environment I added _JAVA_OPTIONS with New Variable Value: -Xmx512M and this helped a bit: Now i can run Jboss Developer Studio and Eclipse but when i Start Server in JBoss Developer studio it still gives error: 

Error occurred during initialization of VM
Incompatible minimum and maximum heap sizes specified
Picked up _JAVA_OPTIONS: -Xmx512M

I dont know how to solve it. I was looking for reason in Internet and trid a few more things but they didnt help.

I will be very thankful for every help.

I have repaired it by adding in System Environment Variables 

_JAVA_OPTIONS
-Xmx512M -Xms64M -XX:MaxPermSize=512m

And then changing options in \jbdevstudio\runtimes\jboss-eap-6.3\bin appclient.conf.bat

rem # JVM memory allocation pool parameters - modify as appropriate.
set "JAVA_OPTS=-Xms64M -Xmx512M -XX:MaxPermSize=512M"

Now everything works for me.

Mureinik
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Kox
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    What is the value of `Xms` ? This is the initial heap size, your `Xms` is most likely larger than the max `Xmx` of 512 ... so set `java -Xms128m -Xmx512m` – Kenneth Clark May 19 '15 at 15:47
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    possible duplicate of [Incompatible initial and maximum heap sizes specified](http://stackoverflow.com/questions/9350437/incompatible-initial-and-maximum-heap-sizes-specified) – Kenneth Clark May 19 '15 at 15:50
  • In C:\users\jbdevstudio\runtimes\jboss-eap-6.3\bin In appclient.conf.bat I have: rem # JVM memory allocation pool parameters - modify as appropriate. set "JAVA_OPTS=-Xms64M -Xmx512M -XX:MaxPermSize=512M" In windows -> system environment variables I added _JAVA_OPTIONS -Xmx512M If i delete this then i cant even start eclipse/jboss dev studio with this i can start them – Kox May 19 '15 at 16:04
  • Removed wrong tag "virtualmachine" – Mureinik May 22 '15 at 11:11

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