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CentOS 6.7에 디폴트로 설치되는 java를 찾아 실행시키기 때문이다.
update-alternatives 명령으로 확인해 보면 OpenJDK 1.7이 디폴트로 설정돼 있는 것을 확인할 수 있다.
# update-alternatives --config java
There are 2 programs which provide 'java'.
Selection Command
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*+ 1 /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java
2 /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java
Enter to keep the current selection[+], or type selection number:
# update-alternatives --install /usr/bin/java java /usr/local/jdk1.8.0_60/bin/java 3
# update-alternatives --config java
There are 3 programs which provide 'java'.
Selection Command
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*+ 1 /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java
2 /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java
3 /usr/local/jdk1.8.0_60/bin/java
Enter to keep the current selection[+], or type selection number: 3
# java –version
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)
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