Finding the java version

[JkktBkkt]

This can fail to find the installed java, as sometimes (I think the reason is that there's only one version installed in my wine prefix), it appears to not create the "CurrentVersion" value.
I was able to create that value manually with value set to 25.0.1 (the only key present in HKEY_LOCAL_MACHINE\Software\JavaSoft\JDK\)
And then was able to launch integrated mode.

aurora/cpp/aurora.cpp

Line 31 in b9d9a4a

if (retval = RegGetValue(jKey, NULL, TEXT("CurrentVersion"), RRF_RT_REG_SZ, NULL, versionString, &bufsize)) {

[anthofoxo]

This was implemented as a windows only thing and wine is supposed to correctly emulate this.

All thats really needed is the java path. An option to search the system environment for a path can be added as a fallback

[JkktBkkt]

I think the issue here is the installer not creating the value CurrentVersion, the rest are getting created properly.

[anthofoxo]

It is supposed to create this key, this may be a windows specific thing that is done with installers and not on the installer itself.