English 中文(简体)
Maven的免费肥皂面积没有增加
原标题:Free heap size does not increase in Maven



When I run maven-jetty-plugin, I run next command:

mvn -DMAVEN_OPTS="-Xmx1024m -Xms512m" -Djetty.port=8080 jetty:run

but when I try to output free heap size with

Long heapFreeSize = Runtime.getRuntime().freeMemory();

It always outputs something about about 30000000.
I suppose it s size in bytes, so about 30 megabytes.
Why then free heap memory did not increase?

最佳回答

MAVEN_OPTS是一个环境变量,由Maven读成,用作引发java进程的指挥线论据。 指挥线论点控制着 Java的迫害如何开始,例如像记忆环境一样。

<代码>-D用于确定 Java系统财产,这与指挥线论点完全不同。 Java系统 财产可以按方案方式阅读,例如使用系统。

视窗:

SET MAVEN_OPTS="-Xmx1024m -Xms512m"
mvn -Djetty.port=8080 jetty:run

LC:

export MAVEN_OPTS="-Xmx1024m -Xms512m"
mvn -Djetty.port=8080 jetty:run
问题回答

我认为——DMAVEN_OPTS=“Xmx1024m-Xms512m”并不能正确指明这里的记忆。

1. 形成一个称为MAVEN_OPTS的“Xmx1024m-Xms512m”的现成变量





相关问题
Spring Properties File

Hi have this j2ee web application developed using spring framework. I have a problem with rendering mnessages in nihongo characters from the properties file. I tried converting the file to ascii using ...

Logging a global ID in multiple components

I have a system which contains multiple applications connected together using JMS and Spring Integration. Messages get sent along a chain of applications. [App A] -> [App B] -> [App C] We set a ...

Java Library Size

If I m given two Java Libraries in Jar format, 1 having no bells and whistles, and the other having lots of them that will mostly go unused.... my question is: How will the larger, mostly unused ...

How to get the Array Class for a given Class in Java?

I have a Class variable that holds a certain type and I need to get a variable that holds the corresponding array class. The best I could come up with is this: Class arrayOfFooClass = java.lang....

SQLite , Derby vs file system

I m working on a Java desktop application that reads and writes from/to different files. I think a better solution would be to replace the file system by a SQLite database. How hard is it to migrate ...

热门标签