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How do I silently install Java's SDK and the JRE?

Posted on 2006-06-23
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Last Modified: 2008-02-01
Hello all,

I'm trying to package up both Apache Tomcat and the JDK, along with my own web app into an installer package, so I can simplify deployment.

During the process, I execute 'j2sdk-1_4_2_08-windows-i586-p.exe "/s /v"/qn JAVAUPDATE=0"', to install the JDK silently. The JDK gets installed, but not the java runtime, so when Apache Tomcat is installed, it doesn't find the version of java to use, and won't start up.

But if I manually install j2sdk-1_4_2_08-windows-i586-p.exe, both the JDK and JRE are installed.  After that, I can install Tomcat, it picks up on the Java version, and runs fine.

So, any ideas as to what I'm missing? How can I silently install all the java components that Tomcat needs to run?

Any thoughts would be appreciated, I'm a little stuck on this one.

Thanks!
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Question by:Inward_Spiral
7 Comments
 
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Expert Comment

by:Mayank S
ID: 16969411
The JDK also contains a JRE. Set your JAVA_HOME environment variable to point to the root installation folder of JDK. %JAVA_HOME%\jre contains the JRE.
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Author Comment

by:Inward_Spiral
ID: 16969705
I'm setting both CATALINA_HOME and JAVA_HOME with VBScript during the install:

Set args=wscript.arguments
Set oShell = CreateObject("WScript.Shell")
Set oWshSystemEnv = oShell.Environment("SYSTEM")
oWshSystemEnv("CATALINA_HOME") = args(0)
oWshSystemEnv("JAVA_HOME") = args(1)

I've checked the registry, if I install Tomcat silently after a manual install of the JDK, I see a "Jvm" registry entry in "HKEY_LOCAL_MACHINE\SOFTWARE\Apache Software Foundation\Procrun 2.0\Tomcat5\Parameters\Java".

But if I silently install both of them, the "Jvm" entry isn't there, and the Tomcat service won't start up.

Messing with registry entries isn't always a good thing, anyone have a suggestion on how to get past this without registry hacks?

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by:Mayank S
ID: 16969868
Then it perhaps needs that entry to be present - otherwise maybe you can specify it as a parameter to Tomcat while starting up as an extra command-line argument.
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Expert Comment

by:ksivananth
ID: 16971876
make sure you make the registry entry for java when you are installing java in silent mode.
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Accepted Solution

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phuocnh earned 200 total points
ID: 16977852
Hi Inward_Spiral!
I have played with JDK so many times! :)
You install JDK in any box you have and copy entire the folder containing it into the destination box. That is enough.
So, when I made the installer I just packed entire JDK folder and set environment variables in tomcat start up script file (JAVA_HOME). I didn't have to set the registry because of the potential hazards.
Phuoc

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Author Comment

by:Inward_Spiral
ID: 17146143
Sorry for the delay, phuocnh's solution worked for my initial test, but I got pulled onto another project before I could add everything I wanted to the package.

I swear, if I had a dollar for every time that happened...
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