maven-2 - 如何让 m2eclipse 识别 $M2_OPTS？

Question

看来 m2eclipse 无法识别我的 $M2_OPTS 变量。

我可以在 Eclipse 之外运行相同的构建(使用提高堆大小):

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 51 seconds
[INFO] Finished at: Tue Nov 10 00:00:02 EST 2009
[INFO] Final Memory: 72M/187M
[INFO] ------------------------------------------------------------------------

但是当我用 m2eclipse 运行它时，我总是内存不足:

[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Java heap space
[INFO] ------------------------------------------------------------------------
[INFO] Trace
  java.lang.OutOfMemoryError: Java heap space
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
    ...
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1 minute 27 seconds
[INFO] Finished at: Mon Nov 09 23:56:32 EST 2009
[INFO] Final Memory: 43M/81M
[INFO] ------------------------------------------------------------------------

有任何想法吗？

解决方案:将内存参数添加到 Java 首选项的已安装 JRE 选项卡中。

Answer 1

目前有一个关于此的问题，请参阅 MNGECLIPSE-1182 ，以及解决方法:

... you can specify default JVM arguments in Window / Preferences / Java / Installed JREs.

但实际上，这条评论让我很困惑:

[ It appears as though the current m2eclipse plugin still honors the M2_OPTS environment variable when using an external maven installation.

So I just defined both of them: MAVEN_OPTS for running mvn from command prompts and M2_OPTS for running maven from m2eclipse. E.g. set M2_OPTS=-Xmx256M -XX:MaxPermSize=128M

I'm using Maven 2.1.0 and Maven Integration for Eclipse version 0.9.9.200907071528 with Eclipse Galileo. ]