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Index › Programming Questions & Help › Programs › Bundle Java with the App
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Bundle Java with the App? (Read 882 times)
jeffg
Bundle Java with the App?
Jun 25th, 2009, 7:19am  
I'd like to copy my Processing App to several systems that rely on Java 1.4 for some app, and the IT staff has not approved installing a newer version of Java.  Is there any way to bundle a newer version of java with the processing app so that it doesn't rely on the system but uses it's own copy?
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jeffg
Re: Bundle Java with the App?
Reply #1 - Jun 25th, 2009, 9:29am  
From what I understand, Java is a self contained folder and does not need an installation, so long as you direct your jar files to use the specified folder.  So, I should be able to copy the JRE folder right into my sketch directory, and then somehow tell the sketch to use that copy.  Here is a simple example: jre/bin/java -jar myJar.jar

However, this doesn't work when I try to execute the jar on windows.  It's missing the main.. and I guess the arguments file.  I'd like to have this compiled right into the exe, where I tell it the JRE bin folder is in the sketch directory.
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PhiLho 
Re: Bundle Java with the App?
Reply #2 - Jun 25th, 2009, 1:08pm  
I do that in an application we develop at work: it comes with its own JRE, so it doesn't change anything on the install computer (it is installed with InnoSetup).
From memory, we start it with batch files with a line like:
<path to JRE>/bin/javaw.exe -Djava.ext.dirs=<path1 to libs>;<path 2 to other libs>;<path to the main jars> class.path.to.MainClass parameter for application
Works fine...
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jeffg
Re: Bundle Java with the App?
Reply #3 - Jun 25th, 2009, 2:19pm  
Thanks!  That did it. Smiley
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