deltalounge

For a lot of us the migration to Windows7 will be the first time we get easy access to a 64-bit desktop OS. One of the first things after an upgrade like that is to get your tools, like in my case JDeveloper, working again. First step is to download the jdevinstall jar, and the Sun JDK. The installation worked fine:

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java -jar jdevstudio11112install.jar

Running JDeveloper on 64-bit JVM

Running JDeveloper with the 64-bit JVM resulted in an error:

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Unable TO launch the Java Virtual Machine  
located at path:  
C:\Java\jdk1.6.0_18\jre\bin\server\jvm.dll

A solution is to use the 32-bit JVM. To do this change the SetJavaHome in thejdev.conf that is located in the {JDEV_HOME}\jdev\bin\jdev.conf.

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SetJavaHome C:\Java\jdk1.6.0_18_x86

Where the jdk1.6.0_18_x86 is a 32-bits JVM version.