摘要: 1.检查系统是否有open-jdk
[root@localhost Alex] rpm -qa | grep java
tzdata-java-2010c-1.fc12.noarch
java_cup-0.11a-1.fc12.noarch
java-1.5.0-gcj-1.5.0.0-29.fc12.i686
java-1.6.0-openjdk-1.6.0.0-33.b16.fc12.i686
java-1.6.0-openjdk-plugin-1.6.0.0-33.b16.fc12.i686
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