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Thread: OpenJDK Help

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i installed ubuntu , didnt notice openjdk 6 installed. installed openjdk 7 via apt-get. , when ran javac command compile stuff without problems.

ran java command "unsupportedclassversionerror"...

java version:
code:
steve@ubuntu:~$ java -version  java version "1.6.0_23"  openjdk runtime environment (icedtea6 1.11pre) (6b23~pre11-0ubuntu1.11.10)  openjdk 64-bit server vm (build 20.0-b11, mixed mode)
java_home:

code:
$ echo $java_home  /usr/lib/jvm/java-7-openjdk-amd64
but when "whereis java" pointed "/usr/bin/java" which inturn points "/etc/alternatives/java" points "/usr/lib/jvm/java-6-openjdk/jre/bin/java"

tried setting classpath "/usr/lib/jvm/java-7-openjdk-amd64/lib" "classnotfoundexception"

please me resolve this. willing purge java outta pc , re installing afresh if nothing works out.

thanks lot helping out! cant thank guyz enuff!

anyway... how sorted things out.

used update-alernatives --configure java set default java openjdk 7.

removed openjdk 6 , javac , rest of development binaries gone.

reason jdk7 binaries not registered. installed them manually using,

update-alternatives --install <link> <name> <path> <priority>

got sorted out , javac -version gives java 1.7 correctly

again.


Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Installation & Upgrades [SOLVED] OpenJDK Help


Ubuntu

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