Error when trying to run JaamSim from Eclipse

[mennova...@gmail.com]

Hi,

I just installed Java and Eclipse according the program manual, but I get some errors and the 3D view window does not open.

- Eclipse IDE for Java Developers

Version: 2020-03 (4.15.0)

I installed for Java:

- jdk-14

- jre1.8.0_241

I run it on Windows 10 Pro, 64-bit OS, x64 based

The errors I get:

java.lang.UnsatisfiedLinkError: Can't load library: C:\Users\menno\eclipse-workspace\JaamSim\natives\windows-amd64\\gluegen_rt.dll
 at java.lang.ClassLoader.loadLibrary(Unknown Source)
 at java.lang.Runtime.load0(Unknown Source)
 at java.lang.System.load(Unknown Source)
 at com.jogamp.common.jvm.JNILibLoaderBase.loadLibraryInternal(JNILibLoaderBase.java:625)
 at com.jogamp.common.jvm.JNILibLoaderBase.access$000(JNILibLoaderBase.java:64)
 at com.jogamp.common.jvm.JNILibLoaderBase$DefaultAction.loadLibrary(JNILibLoaderBase.java:107)
 at com.jogamp.common.jvm.JNILibLoaderBase.loadLibrary(JNILibLoaderBase.java:488)
 at com.jogamp.common.os.DynamicLibraryBundle$GlueJNILibLoader.loadLibrary(DynamicLibraryBundle.java:427)
 at com.jogamp.common.os.Platform$1.run(Platform.java:321)
 at java.security.AccessController.doPrivileged(Native Method)
 at com.jogamp.common.os.Platform.<clinit>(Platform.java:290)
 at com.jogamp.opengl.GLProfile.<clinit>(GLProfile.java:154)
 at com.jaamsim.render.Renderer.mainRenderLoop(Renderer.java:216)
 at com.jaamsim.render.Renderer.access$18(Renderer.java:210)
 at com.jaamsim.render.Renderer$1.run(Renderer.java:203)
 at java.lang.Thread.run(Unknown Source)

Exception in thread "RenderThread" java.lang.NoClassDefFoundError: Could not initialize class com.jogamp.common.os.Platform
 at com.jogamp.nativewindow.NativeWindowFactory$1.run(NativeWindowFactory.java:239)
 at java.security.AccessController.doPrivileged(Native Method)
 at com.jogamp.nativewindow.NativeWindowFactory.<clinit>(NativeWindowFactory.java:236)
 at com.jaamsim.render.Renderer.mainRenderLoop(Renderer.java:265)
 at com.jaamsim.render.Renderer.access$18(Renderer.java:210)
 at com.jaamsim.render.Renderer$1.run(Renderer.java:203)
 at java.lang.Thread.run(Unknown Source)

Can anyone advise me on how to fix this? JaamSim does start up, but does not show the 3D view GUI

Kind regards,

Menno

[mennova...@gmail.com]

It was solved:

I did tick the box 'system library' when defining the library name for JOGL2 (see step 2.4.3, bottom of page 5)

When I redid this step and did NON tick that particular box, then the problem was solved!

[Knut Arild Maråk]

Hi, 

I get the exact same error as you. Where did you untick the "system library" box? 

I've installed OpenJRE. I suspect that the error is related to settings set by the IT department, that auto-unpacking e.g. the gluegen_rt.dll file is prohibited.

Kind regards, 

Knut

[menno van schayk]

Hi Knut,

See below my email discussion with Harvey

Harvey 1st response:

'

You have not added the jogl libraries to your eclipse environment. In the jar/ folder, you need gluegen-rt.jar and jogl-all.jar added to your eclipse environment.

This is documented in the programming manual in the first chapter for further reference.

'

My response:

'

Hi Harvey,

Thanks for the quick reply. I did add the gluegen-rt.jar and jogl-all.jar added to my eclipse environment (as instructed in section 2.4.3):

See my eclipse IDE GUI above.

Any idea what could have gone wrong?

'

my 2nd response

'

I did tick the box 'system library' when defining the library name for JOGL2. Could this have done any harm?

'

Harvey 2nd response:

'

I wouldn't add it as a system library. But I'm not sure if that would make any difference.

'

My final response:

'

Hi Harvey,

I unticked the box and tried to Run and....No errors on opening :) and the 3D viewer opened. So it seemed to work!

Thanks for your help! 

'

Conclusion:

It was solved:

I did tick the box 'system library' when defining the library name for JOGL2 (see step 2.4.3, bottom of page 5)

When I redid this step and did NON tick that particular box, then the problem was solved!

Hopefully this helps! Kind regards,

Menno

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[Knut Arild Maråk]

Thanks for your help Menno. 

As I'd only like to run JaamSim and not compile it, I don't have ECLIPSE installed and I understood that I must find another solution than yours. I use Windows 10.

From other forum posts, I suspected that our IT-organization had prohibited auto-extract of dlls and other files when running the JaamSim .exe-file, which explains why the gluegen-rt.jar (and probably other files too) was not available. The solution was to manually extract the JaamSim .jar-file and put the extracted content in the same folder where I run JaamSim.exe from. That fixed the problem and it works as a charm now!

Best regards, 

Knut

[Harry King]

Knut,

You can download the JaamSim jar file directly from the Downloads page of the JaamSim website.

Harry