私はDebian 9にopenjdk 9をインストールしようとしましたが、すべてがそのインストールを指すようにしました。しかし、何かがオフになっていて、java端末の基本コマンドが指す場所を更新したくありません。
簡単な方法でopenjdk9をインストールしました。sudo apt-get install openjdk-9-jre openjdk-9-jdk
私が実行したら、readlink $(which java)以下を指します。/etc/alternatives/java
私が実行したら、readklink /etc/alternatives/java以下を指します。/usr/lib/jvm/java-9-openjdk-amd64/bin/java
しかし、最も奇妙なことは、一度実行すると、端末で実行したときに得られる結果が正確に何であるかを指すreadlink -f $(which java)ことです。/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/javajava -version
openjdk version "1.8.0_151"
OpenJDK Runtime Environment (build 1.8.0_151-8u151-b12-1-b12)
OpenJDK 64-Bit Server VM (build 25.151-b12, mixed mode)
シンボリックdefault-javaリンクはopenjdk 8も指します。
しかし、javac -version端末では正しく見えます。
javac 9.0.1
update-alternativesjava次のようによく似合うようですjavac:
$ sudo update-alternatives --config java
There are 2 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-9-openjdk-amd64/bin/java 1091 auto mode
1 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java 1069 manual mode
* 2 /usr/lib/jvm/java-9-openjdk-amd64/bin/java 1091 manual mode
$ sudo update-alternatives --config javac
There are 2 choices for the alternative javac (providing /usr/bin/javac).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-9-openjdk-amd64/bin/javac 1091 auto mode
1 /usr/lib/jvm/java-8-openjdk-amd64/bin/javac 1069 manual mode
* 2 /usr/lib/jvm/java-9-openjdk-amd64/bin/javac 1091 manual mode
javaコマンドがシステムの残りの部分と一致することができない理由を知っている人はいますか？それとも、次に何を試すかについてのアイデアがありますか？
とても感謝しています。
スクリプトの編集と追加
resu@laptop/usr/lib/jvm
$ ls -l
total 12
lrwxrwxrwx 1 root root 24 Jan 6 2017 default-java -> java-1.8.0-openjdk-amd64
drwxr-xr-x 4 root root 4096 Dec 16 16:47 java-1.5.0-gcj-6-amd64
lrwxrwxrwx 1 root root 20 Oct 25 2016 java-1.8.0-openjdk-amd64 -> java-8-openjdk-amd64
lrwxrwxrwx 1 root root 20 Oct 26 19:44 java-1.9.0-openjdk-amd64 -> java-9-openjdk-amd64
drwxr-xr-x 7 root root 4096 Nov 26 01:18 java-8-openjdk-amd64
drwxr-xr-x 9 root root 4096 Dec 10 20:26 java-9-openjdk-amd64
lrwxrwxrwx 1 root root 34 Dec 31 20:09 java-latest -> /usr/lib/jvm/java-9-openjdk-amd64/
resu@laptop/usr/lib/jvm
$ cd /etc/alternatives/
resu@laptop/etc/alternatives
$ ls -l | grep java
lrwxrwxrwx 1 root root 50 Dec 31 20:06 appletviewer -> /usr/lib/jvm/java-9-openjdk-amd64/bin/appletviewer
lrwxrwxrwx 1 root root 60 Dec 31 20:06 appletviewer.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/appletviewer.1.gz
lrwxrwxrwx 1 root root 46 Jan 21 2017 extcheck -> /usr/lib/jvm/java-8-openjdk-amd64/bin/extcheck
lrwxrwxrwx 1 root root 56 Jan 21 2017 extcheck.1.gz -> /usr/lib/jvm/java-8-openjdk-amd64/man/man1/extcheck.1.gz
lrwxrwxrwx 1 root root 42 Dec 10 20:26 idlj -> /usr/lib/jvm/java-9-openjdk-amd64/bin/idlj
lrwxrwxrwx 1 root root 52 Dec 10 20:26 idlj.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/idlj.1.gz
lrwxrwxrwx 1 root root 56 Oct 8 17:17 itweb-settings -> /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/itweb-settings
lrwxrwxrwx 1 root root 66 Oct 8 17:17 itweb-settings.1.gz -> /usr/lib/jvm/java-8-openjdk-amd64/jre/man/man1/itweb-settings.1.gz
lrwxrwxrwx 1 root root 43 Dec 10 20:26 jaotc -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jaotc
lrwxrwxrwx 1 root root 41 Dec 10 20:26 jar -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jar
lrwxrwxrwx 1 root root 51 Dec 10 20:26 jar.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jar.1.gz
lrwxrwxrwx 1 root root 47 Dec 10 20:26 jarsigner -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jarsigner
lrwxrwxrwx 1 root root 57 Dec 10 20:26 jarsigner.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jarsigner.1.gz
lrwxrwxrwx 1 root root 42 Dec 31 20:06 java -> /usr/lib/jvm/java-9-openjdk-amd64/bin/java
lrwxrwxrwx 1 root root 52 Dec 31 20:06 java.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/java.1.gz
lrwxrwxrwx 1 root root 43 Dec 31 20:06 javac -> /usr/lib/jvm/java-9-openjdk-amd64/bin/javac
lrwxrwxrwx 1 root root 53 Dec 31 20:06 javac.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/javac.1.gz
lrwxrwxrwx 1 root root 45 Dec 10 20:26 javadoc -> /usr/lib/jvm/java-9-openjdk-amd64/bin/javadoc
lrwxrwxrwx 1 root root 55 Dec 10 20:26 javadoc.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/javadoc.1.gz
lrwxrwxrwx 1 root root 43 Dec 10 20:26 javah -> /usr/lib/jvm/java-9-openjdk-amd64/bin/javah
lrwxrwxrwx 1 root root 53 Dec 10 20:26 javah.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/javah.1.gz
lrwxrwxrwx 1 root root 43 Dec 10 20:26 javap -> /usr/lib/jvm/java-9-openjdk-amd64/bin/javap
lrwxrwxrwx 1 root root 53 Dec 10 20:26 javap.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/javap.1.gz
lrwxrwxrwx 1 root root 48 Oct 8 17:17 javaws -> /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/javaws
lrwxrwxrwx 1 root root 58 Oct 8 17:17 javaws.1.gz -> /usr/lib/jvm/java-8-openjdk-amd64/jre/man/man1/javaws.1.gz
lrwxrwxrwx 1 root root 42 Dec 10 20:26 jcmd -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jcmd
lrwxrwxrwx 1 root root 52 Dec 10 20:26 jcmd.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jcmd.1.gz
lrwxrwxrwx 1 root root 46 Dec 31 20:06 jconsole -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jconsole
lrwxrwxrwx 1 root root 56 Dec 31 20:06 jconsole.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jconsole.1.gz
lrwxrwxrwx 1 root root 41 Dec 10 20:26 jdb -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jdb
lrwxrwxrwx 1 root root 51 Dec 10 20:26 jdb.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jdb.1.gz
lrwxrwxrwx 1 root root 47 Dec 10 20:26 jdeprscan -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jdeprscan
lrwxrwxrwx 1 root root 43 Dec 10 20:26 jdeps -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jdeps
lrwxrwxrwx 1 root root 53 Dec 10 20:26 jdeps.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jdeps.1.gz
lrwxrwxrwx 1 root root 43 Dec 31 20:06 jexec -> /usr/lib/jvm/java-9-openjdk-amd64/lib/jexec
lrwxrwxrwx 1 root root 48 Dec 31 20:06 jexec-binfmt -> /usr/lib/jvm/java-9-openjdk-amd64/lib/jar.binfmt
lrwxrwxrwx 1 root root 42 Jan 21 2017 jhat -> /usr/lib/jvm/java-8-openjdk-amd64/bin/jhat
lrwxrwxrwx 1 root root 52 Jan 21 2017 jhat.1.gz -> /usr/lib/jvm/java-8-openjdk-amd64/man/man1/jhat.1.gz
lrwxrwxrwx 1 root root 43 Dec 10 20:26 jhsdb -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jhsdb
lrwxrwxrwx 1 root root 44 Dec 10 20:26 jimage -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jimage
lrwxrwxrwx 1 root root 43 Dec 10 20:26 jinfo -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jinfo
lrwxrwxrwx 1 root root 53 Dec 10 20:26 jinfo.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jinfo.1.gz
lrwxrwxrwx 1 root root 41 Dec 31 20:06 jjs -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jjs
lrwxrwxrwx 1 root root 51 Dec 31 20:06 jjs.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jjs.1.gz
lrwxrwxrwx 1 root root 43 Dec 10 20:26 jlink -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jlink
lrwxrwxrwx 1 root root 42 Dec 10 20:26 jmap -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jmap
lrwxrwxrwx 1 root root 52 Dec 10 20:26 jmap.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jmap.1.gz
lrwxrwxrwx 1 root root 42 Dec 10 20:26 jmod -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jmod
lrwxrwxrwx 1 root root 41 Dec 10 20:26 jps -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jps
lrwxrwxrwx 1 root root 51 Dec 10 20:26 jps.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jps.1.gz
lrwxrwxrwx 1 root root 48 Dec 10 20:26 jrunscript -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jrunscript
lrwxrwxrwx 1 root root 58 Dec 10 20:26 jrunscript.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jrunscript.1.gz
lrwxrwxrwx 1 root root 47 Jan 21 2017 jsadebugd -> /usr/lib/jvm/java-8-openjdk-amd64/bin/jsadebugd
lrwxrwxrwx 1 root root 57 Jan 21 2017 jsadebugd.1.gz -> /usr/lib/jvm/java-8-openjdk-amd64/man/man1/jsadebugd.1.gz
lrwxrwxrwx 1 root root 44 Dec 10 20:26 jshell -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jshell
lrwxrwxrwx 1 root root 44 Dec 10 20:26 jstack -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jstack
lrwxrwxrwx 1 root root 54 Dec 10 20:26 jstack.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jstack.1.gz
lrwxrwxrwx 1 root root 43 Dec 10 20:26 jstat -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jstat
lrwxrwxrwx 1 root root 53 Dec 10 20:26 jstat.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jstat.1.gz
lrwxrwxrwx 1 root root 44 Dec 10 20:26 jstatd -> /usr/lib/jvm/java-9-openjdk-amd64/bin/jstatd
lrwxrwxrwx 1 root root 54 Dec 10 20:26 jstatd.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/jstatd.1.gz
lrwxrwxrwx 1 root root 45 Dec 31 20:06 keytool -> /usr/lib/jvm/java-9-openjdk-amd64/bin/keytool
lrwxrwxrwx 1 root root 55 Dec 31 20:06 keytool.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/keytool.1.gz
lrwxrwxrwx 1 root root 64 Oct 8 17:18 mozilla-javaplugin.so -> /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so
lrwxrwxrwx 1 root root 50 Jan 21 2017 native2ascii -> /usr/lib/jvm/java-8-openjdk-amd64/bin/native2ascii
lrwxrwxrwx 1 root root 60 Jan 21 2017 native2ascii.1.gz -> /usr/lib/jvm/java-8-openjdk-amd64/man/man1/native2ascii.1.gz
lrwxrwxrwx 1 root root 42 Dec 31 20:06 orbd -> /usr/lib/jvm/java-9-openjdk-amd64/bin/orbd
lrwxrwxrwx 1 root root 52 Dec 31 20:06 orbd.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/orbd.1.gz
lrwxrwxrwx 1 root root 45 Dec 31 20:06 pack200 -> /usr/lib/jvm/java-9-openjdk-amd64/bin/pack200
lrwxrwxrwx 1 root root 55 Dec 31 20:06 pack200.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/pack200.1.gz
lrwxrwxrwx 1 root root 54 Oct 8 17:17 policyeditor -> /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/policyeditor
lrwxrwxrwx 1 root root 64 Oct 8 17:17 policyeditor.1.gz -> /usr/lib/jvm/java-8-openjdk-amd64/jre/man/man1/policyeditor.1.gz
lrwxrwxrwx 1 root root 48 Dec 31 20:06 policytool -> /usr/lib/jvm/java-9-openjdk-amd64/bin/policytool
lrwxrwxrwx 1 root root 58 Dec 31 20:06 policytool.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/policytool.1.gz
lrwxrwxrwx 1 root root 42 Dec 10 20:26 rmic -> /usr/lib/jvm/java-9-openjdk-amd64/bin/rmic
lrwxrwxrwx 1 root root 52 Dec 10 20:26 rmic.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/rmic.1.gz
lrwxrwxrwx 1 root root 42 Dec 31 20:06 rmid -> /usr/lib/jvm/java-9-openjdk-amd64/bin/rmid
lrwxrwxrwx 1 root root 52 Dec 31 20:06 rmid.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/rmid.1.gz
lrwxrwxrwx 1 root root 49 Dec 31 20:06 rmiregistry -> /usr/lib/jvm/java-9-openjdk-amd64/bin/rmiregistry
lrwxrwxrwx 1 root root 59 Dec 31 20:06 rmiregistry.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/rmiregistry.1.gz
lrwxrwxrwx 1 root root 47 Dec 10 20:26 schemagen -> /usr/lib/jvm/java-9-openjdk-amd64/bin/schemagen
lrwxrwxrwx 1 root root 57 Dec 10 20:26 schemagen.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/schemagen.1.gz
lrwxrwxrwx 1 root root 47 Dec 10 20:26 serialver -> /usr/lib/jvm/java-9-openjdk-amd64/bin/serialver
lrwxrwxrwx 1 root root 57 Dec 10 20:26 serialver.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/serialver.1.gz
lrwxrwxrwx 1 root root 48 Dec 31 20:06 servertool -> /usr/lib/jvm/java-9-openjdk-amd64/bin/servertool
lrwxrwxrwx 1 root root 58 Dec 31 20:06 servertool.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/servertool.1.gz
lrwxrwxrwx 1 root root 47 Dec 31 20:06 tnameserv -> /usr/lib/jvm/java-9-openjdk-amd64/bin/tnameserv
lrwxrwxrwx 1 root root 57 Dec 31 20:06 tnameserv.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/tnameserv.1.gz
lrwxrwxrwx 1 root root 47 Dec 31 20:06 unpack200 -> /usr/lib/jvm/java-9-openjdk-amd64/bin/unpack200
lrwxrwxrwx 1 root root 57 Dec 31 20:06 unpack200.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/unpack200.1.gz
lrwxrwxrwx 1 root root 43 Dec 10 20:26 wsgen -> /usr/lib/jvm/java-9-openjdk-amd64/bin/wsgen
lrwxrwxrwx 1 root root 53 Dec 10 20:26 wsgen.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/wsgen.1.gz
lrwxrwxrwx 1 root root 46 Dec 10 20:26 wsimport -> /usr/lib/jvm/java-9-openjdk-amd64/bin/wsimport
lrwxrwxrwx 1 root root 56 Dec 10 20:26 wsimport.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/wsimport.1.gz
lrwxrwxrwx 1 root root 41 Dec 10 20:26 xjc -> /usr/lib/jvm/java-9-openjdk-amd64/bin/xjc
lrwxrwxrwx 1 root root 51 Dec 10 20:26 xjc.1.gz -> /usr/lib/jvm/java-9-openjdk-amd64/man/man1/xjc.1.gz
resu@laptop/etc/alternatives
$ which java
/usr/bin/java
resu@laptop/etc/alternatives
$ type java
java is hashed (/usr/bin/java)
resu@laptop/etc/alternatives
$ readlink $(which java)
/etc/alternatives/java
resu@laptop/etc/alternatives
$ readlink -f $(which java)
/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
resu@laptop/etc/alternatives
$ java -version
openjdk version "1.8.0_151"
OpenJDK Runtime Environment (build 1.8.0_151-8u151-b12-1-b12)
OpenJDK 64-Bit Server VM (build 25.151-b12, mixed mode)
resu@laptop/etc/alternatives
$ javac -version
javac 9.0.1
resu@laptop/etc/alternatives
$ sudo update-alternatives --config java
There are 2 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-9-openjdk-amd64/bin/java 1091 auto mode
1 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java 1069 manual mode
* 2 /usr/lib/jvm/java-9-openjdk-amd64/bin/java 1091 manual mode
Press <enter> to keep the current choice[*], or type selection number: ^C
resu@laptop/etc/alternatives
$ sudo update-alternatives --config javac
There are 2 choices for the alternative javac (providing /usr/bin/javac).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-9-openjdk-amd64/bin/javac 1091 auto mode
1 /usr/lib/jvm/java-8-openjdk-amd64/bin/javac 1069 manual mode
* 2 /usr/lib/jvm/java-9-openjdk-amd64/bin/javac 1091 manual mode