如何隐藏TieredCompilation警告? [英] How to hide TieredCompilation warning?

问题描述

我正在使用Linux Mint和OpenJDK. java -version显示如下:

I'm using Linux Mint and OpenJDK. java -version shows this:

java version "1.7.0_79"
OpenJDK Runtime Environment (IcedTea 2.5.6) (7u79-2.5.6-0ubuntu1.14.04.1)
OpenJDK Client VM (build 24.79-b02, mixed mode, sharing)

每当我运行基于Java的应用程序(如lein)时，都会收到此警告:

Whenever I run a Java-based app like lein, I get this warning:

OpenJDK Client VM warning: TieredCompilation is disabled in this release.

这与我的兴趣无关，所以我宁愿在命令输出中看不到它.如何隐藏或禁用它?

It's irrelevant to my interests, so I'd rather not see it in the command output. How can I hide or disable it?

推荐答案

问题出在Leiningen.它的默认安装在其安装的bash脚本中包含以下行(例如/usr/bin/lein):

The problem is in Leiningen. Its default installation contains the following line in the bash script it installs (eg. /usr/bin/lein):

export LEIN_JVM_OPTS="${LEIN_JVM_OPTS-"-XX:+TieredCompilation -XX:TieredStopAtLevel=1"}"

有两种选择:

1. 将+更改为-;
2. 完全注释掉该行.

1. change + to -;
2. comment out the line entirely.

选项2将更全面地禁用该警告.这是因为对于某些任务，Leiningen可执行文件(在~/.lein/self-installs中)即使在-TieredCompilation存在的情况下也将尝试启用它.

Option 2 will disable the warning more comprehensively. This is because for certain tasks the Leiningen executable (in ~/.lein/self-installs) will try to enable it anyway even in presence of -TieredCompilation.

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