Re: JRE not found, windows

[Nicholas Jankowski]

Interesting.  So DependencyWalker did find a bunch of stuff, much
windows core as you said (kernel32, user32, advapi32, wsock32, winmm,
version, psapi (all 64bit under /windows/system23)). At the end it
does show it can't find msvcr100.dll.  Looking in the Control Panel
"add/remove programs" list, it shows "Microsoft Visual C++ 2010 x86
Redistributable - 10.0.40219" (with an install date from before i
installed this win10 image, so I assume it came along with windows or
some other program)

Assuming something might need the x86 version, I downloaded both the
x86 and x64 versions from MS. uninstalled the x86, and then
reinstalled the x86 and the x64.

x86
https://www.microsoft.com/en-pk/download/details.aspx?id=8328

x64
https://www.microsoft.com/en-us/download/details.aspx?id=13523

Opening Octave, version -java now gives:

>> version -java
ans = Java 1.8.0_231-b11 with Oracle Corporation Java HotSpot(TM)
64-Bit Server VM mixed mode

in both zip and exe installations

THANK YOU

On Sun, Nov 10, 2019 at 9:14 AM Nicholas Jankowski <address@hidden> wrote:
>
> On Sun, Nov 10, 2019, 8:23 AM PhilipNienhuis <address@hidden> wrote:
>>
>> mmuetzel wrote
>> > Am 09. November 2019 um 18:54 Uhr schrieb "Nicholas Jankowski":
>> >> > 32- or 64-bit Octave? (you didn't say)
>> >> >
>> >> > AFAIK the command 'system("java -version")' also works in case of a bit
>> >> > width mismatch between Octave and Java as it is just a Windows command,
>> >> > outside Octave.
>> >> >
>> >> > Philip
>> >> >
>> >> >
>> >> both Octave and Java are 64bit.
>> >>
>> >> source files:
>> >> jre-8u231-windows-x64.exe
>> >> octave-5.1.0-w64.7z
>> >>
>> >> installed in usual locations.
>> >>
>> >> looking at how version checks for java,  i manually ran one of the checks
>> >>
>> >> >>  jname = javaMethod ("getProperty", "java.lang.System",
>> >> "java.vm.name");
>> >>
>> >> error: javaMethod: could not find library or dependencies: C:\Program
>> >> Files\Java\jre1.8.0_231\bin\server\jvm.dll
>> >>
>> >> yet i can cd to that folder and see it. i have no problem running Java
>> >> from outside octave, so I don't think its a permissions error.
>> >>
>> >> frustrating...
>> >
>> > This might be a red herring: But the error message is displayed for both
>> > ERROR_DLL_NOT_FOUND and ERROR_MOD_NOT_FOUND. The latter meaning that a
>> > dependency of jvm.dll couldn't be found.
>> > Can you use e.g. Dependency Walker [1] to determine whether this is the
>> > case? It should be ok to ignore all dependency warnings on "core
>> > libraries" (like "kernel32.dll", "user32.dll", etc.).
>> > I'm suspecting that the C runtime library might be not installed in the
>> > required version (or is somehow broken?).
>> > AFAICS, Java 8 depends on MSVC 10.0 (2010). See e.g. here [2] for download
>> > links of the currently supported versions of the VCR.
>> > I don't know though if it is possible to install Java without it checking
>> > that the necessary VCR is installed.
>> >
>> > Markus
>> >
>> > [1]: http://www.dependencywalker.com/
>> > [2]:
>> > https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads
>>
>> Good point Markus; that's the other thing I had in mind, a faulty Java
>> installation.
>> But if that is the case Nick may have other issues as well on that specific
>> Windows box. Java is so widely used and tested that it is probably hard to
>> get it mis-installed on the average Windows box.
>
>
> Thanks I'll check it out shortly.  I'm used to having issues in managed 
> windows boxes at work.  This is my personal, lightly used one at home that's 
> has a fairly vanilla win10 recently installed an hardly mucked around with.