我正在使用以下命令启动的服务器。
mvn jetty:run
我想停止服务器，但是我无法运行 mvn jetty:stop，甚至无法运行 java -version，为什么？
[mirror@home wpse]$ mvn jetty:stop /////////////
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
[mirror@home wpse]$ java //////////////
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
[mirror@home wpse]$ java -version ///////////////
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
事实上我仍有大约 50M 的可用内存，为什么我无法运行 java -version？java -version 命令需要多少内存？
Mem: 1048800k total, 993728k used, 55072k free, 0k buffers
Swap: 0k total, 0k used, 0k free, 0k cached
问题是使用maven创建jvm时jvm堆的默认大小是多少？
如何使用 maven 时让 java 使用更小的堆？