-Dsun.lang.ClassLoader.allowArraySyntax=true what does this do?

According to Sun's bug database - Bug# 6434149, the documented work around for loading classes using loadClass() is as follows:
1) Add -Dsun.lang.ClassLoader.allowArraySyntax=true if you want to use a library for which you don't have the source with JDK6
2) Change loader.loadClass( name ) to Class.forName( name, false, loader ) if you own the code.
What does -Dsun.lang.ClassLoader.allowArraySyntax does exactly? Does it affect any other Java 1.6 existing functionalities? Is it safe to add?

Hello Rene,
no, it's not the same. The first one is more general, as you set the application to be unavailable before you do the upgrade. Obviously, you use it for any other maintenance task as well. We also use it to disable applications that shall only be available a few days per month.
The second attribute is set to mark the application of being imported (also if it's the first time) and hence it won't be accessible at that moment. Furthermore, you can't execute a second update/import at that time, which would be possible if you just set the flow status to unavailable.
-Udo

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