VM初始化期间发生错误

Question

I lanched the command mvn -version just after reboot and I got:

Apache Maven 3.3.1 (cab6659f9874fa96462afef40fcf6bc033d58c1c; 2015-03-13T21:10:2
7+01:00)
Maven home: C:\apache-maven-3.3.1\bin\..
Java version: 1.7.0_45, vendor: Oracle Corporation
Java home: C:\Program Files (x86)\Java\jdk1.7.0_45\jre
Default locale: fr_FR, platform encoding: Cp1252
OS name: "windows 8", version: "6.2", arch: "x86", family: "windows"

and then lanched on my directory project the command:

  mvn -o clean install 

and I got

Error occurred 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.

After when I rexecute the command "mvn -version" I got the same error Any ideas why I got this strange behavior and how can I fix it? I already set the Maven variable:

 MAVEN_OPTS = -Xms512m -Xmx1024m -XX:PermSize=256m -XX:MaxPermSize=512m

Thanks in advance for your help!

Answer 1

行尾是否有引号？

MAVEN_OPTS = -Xmx1024m -XX:MaxPermSize=512m"

Answer 2

The error message means that you have not enough RAM to run the JVM with your requested memory settings. Probably after booting there are not many other applications running and so there are 1.5 GB RAM left, but after a while with additional programs running the requested 1.5 GB RAM are not accessible anymore. Try reducing your setting, eg to:

MAVEN_OPTS = -Xmx256m -XX:MaxPermSize=64m

This should be enough for running maven -version .