我最近在我的 Ubuntu 18.04 机器上安装了 OpenJ9 jvm https://launchpad.net/~rpardini/+archive/ubuntu/adoptopenjdk并在我的终端中收到此通知:
** Missing executable /usr/lib/jvm/adoptopenjdk-11-jdk-
openj9/bin/jcmd even though man page /usr/lib/jvm/adoptopenjdk-
11-jdk-openj9/man/man1/jcmd.1.gz exists.
** This is probably a bug in AdoptOpenJDK and should be reported
upstream.
** Missing executable /usr/lib/jvm/adoptopenjdk-11-jdk-
openj9/bin/jinfo even though man page /usr/lib/jvm/adoptopenjdk-
11-jdk-openj9/man/man1/jinfo.1.gz exists.
** This is probably a bug in AdoptOpenJDK and should be reported
upstream.
** Missing executable /usr/lib/jvm/adoptopenjdk-11-jdk-
openj9/bin/jmap even though man page /usr/lib/jvm/adoptopenjdk-
11-jdk-openj9/man/man1/jmap.1.gz exists.
** This is probably a bug in AdoptOpenJDK and should be reported
upstream.
** Missing executable /usr/lib/jvm/adoptopenjdk-11-jdk-
openj9/bin/jstat even though man page /usr/lib/jvm/adoptopenjdk-
11-jdk-openj9/man/man1/jstat.1.gz exists.
** This is probably a bug in AdoptOpenJDK and should be reported
upstream.
** Missing executable /usr/lib/jvm/adoptopenjdk-11-jdk-
openj9/bin/jstatd even though man page
/usr/lib/jvm/adoptopenjdk-11-jdk-openj9/man/man1/jstatd.1.gz
exists.
** This is probably a bug in AdoptOpenJDK and should be reported
upstream.
我尝试运行 Spring Tool Suit，到目前为止没有出现问题。
我应该担心这个吗？ 如果我能做些什么来修复这些丢失的文件，请教我。我对 jvm 的工作原理了解甚少。 预先感谢您。
最佳答案
除非您需要 jinfo、jstat 或 jstatd，否则您可以安全地忽略来自 update-alternatives 的这些警告(OpenJ9 不提供这些命令)。我打开了一个问题 [1]，建议仅应包含提供的命令的手册页。
请注意，jcmd 和 jmap 已添加到最新版本的 OpenJ9 中。
关于java - 在 ubuntu 18.04 中安装 OpenJDK OpenJ9 后缺少可执行文件，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56678788/