Install the JDK Development Version on CentOS
If you want access to Java tools like jar and javac, install the development version of the JDK. # yum install java-1.7.0-openjdk-devel Add the bin directory to your PATH so you can run the Java programs from anywhere. # PATH=$PATH:/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.25.x86_64/bin View the classes in a jar file. # jar tvf dt.jar 0 Mon Jul 01 09:51:04 EDT 2013 META-INF/ 71 Mon Jul 01 09:51:04 EDT 2013 META-INF/MANIFEST.MF 0 Mon Jul 01 09:51:00 EDT 2013 javax/ 0 Mon Jul 01 09:51:04 EDT 2013 javax/swing/ 4486 Mon Jul 01 09:51:04 EDT 2013 javax/swing/JSliderBeanInfo.class 3342 Mon Jul 01 09:51:04 EDT 2013 javax/swing/JFormattedTextFieldBeanInfo.class 3025 Mon Jul 01 09:51:04 EDT 2013 javax/swing/JMenuBarBeanInfo.class