Tomcat 5.5 and above doesn’t need the JDK May 10th, 2010

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Most of us who install Tomcat on our development machines wouldn’t have noticed that Tomcat versions before 5.5 required the full blown Java Development Kit (JDK) to be installed on the machine. Just installing the Java Runtime Environment (JRE) wasn’t enough. The JDK is meant for developers to be able to compile Java programs, and has the development tools such as the compiler, debugger and other development libraries. Tomcat versions prior to 5.5 used the Java compiler that comes with the JDK to compile JSP pages at runtime and consequently required a full blown JDK.

Tomcat versions 5.5 and above have a Java compiler (the Eclipse JDT Java compiler) packaged along with it. Now, this is used to compile the JSP pages dynamically instead of the JDK compiler. Hence, it is enough if we just install JRE starting from Tomcat version 5.5 and above.

Posted in Java, Server Side, Tomcat | Respond | Trackback.

11 Responses to “Tomcat 5.5 and above doesn’t need the JDK”

  1. 1. b mulert on August 25th, 2010 at 4:43 pm

    Will this only work on Intel platforms? How will they deal with those that want to deploy on PowerPC (AIX)?

  2. 2. Ganeshji Marwaha on August 25th, 2010 at 5:32 pm

    @bmulert – Why do you think the Eclipse JDT is unavailable for PowerPc?

  3. 3. Anonymous on August 25th, 2010 at 9:21 pm

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  4. 4. forex on October 16th, 2010 at 7:54 pm

    Will this only work on Intel platforms? How will they deal with those that want to deploy on PowerPC (AIX)?

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  9. 9. Spelen on January 15th, 2011 at 6:27 am

    Thanks for sharing your experience and thoughts, but Tomcat is still a lovely software i think.

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