Log warning on Java

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2014-06-03 09:16:58.429 WARNING - M2EE: Unsupported JVM (Java(TM) SE Runtime Environment 1.7.0_45). Use at your own risk. Please check https://world.mendix.com/display/refguide3/System+Requirements. not sure what to make of this (but hey, I used to be a blonde....) As usual it helps when getting some feedback to put a fresh perspective on things. I checked the parameters, and it started using the 1.7 Java instead of the 1.6 it was developed with. Before defaulted to 1.6, but we recently had another app (in V5) using 1.7 and that seems to have stuck.... Stopped, applied 1.6 as parameter, restarted, solved !!! @Bas & Bart, THX !
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2 answers
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Where did you get this log message?

  • If you got this in a cloud environment, please file a support ticket, including the full log of the app. I've seen this before and it's probably not related to your specific model, and your app will most likely function just fine, but better safe than sorry.
  • If it's an on-premise environment, you're probably trying to run an older Mendix app (<4.x) on a 1.7+ java, which is not supported, as the message says. Either upgrade Mendix or downgrade Java.
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Are you absolutely sure you're running on Mendix 4.4.4? Because I noticed the URL in your log message and it forwards you to the system requirements for Mendix 3. I did just check this code in our version control system for Mendix 4.4.4 and it does have the correct URL to https://world.mendix.com/display/refguide4/System+Requirements. Also, that code would actually support the JVM of this version, unlike what your warning seems to indicate. So if you're certain then something odd is going on concerning which container your application is running in.

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