Ошибка no server jvm at

I’m running a java application that we distribute as a server-side system. I’m trying to write a launcher («write» is somewhat of an overstatement here, I’m basically just copying the Java.exe file so that we can get the desired name in the process explorer of windows). This exe is in our bin/ directory of our application file tree.

Now, we also have a jre/ directory in our file tree, which is where Java.exe actually resides (we ship our product with the Java environment). When I use Java.exe as the launcher, which is located in jrejre1.6.0_21bin, or if I place the copy (call this exectuable ‘Orange.exe’) I made in this directory, it works just fine. But, if I put my ‘Orange.exe’ in the bin directory, then I get the following error:

Error: no 'server' JVM at 'C:Program FilesJavajre6binserverjvm.dll'

I think I understand what is happening here — I want to use the server version of the jvm.dll file, which is in our jre directory. The problem is, I don’t understand WHY it doesn’t look in the jrejre1.6.0_21 directory in my application path. I’ve set my JAVA_HOME environment variable to this location. It seems like it’s defaulting to another, system-wide expected location.

Does anyone know how I can change this, so that it looks in my application-provided java environment directory? Ideally, this will be an environment variable, as I need to call this application with parameters using a batch file.

Solution 1

There is a little trick to get the server JVM up and running:

1. Copy «server» folder from the JDK’s JRE’s bin folder example: C:Program FilesJavajdk1.6.0jrebinserver
2. Paste the «server» folder to JRE’s bin folder example: C:Program FilesJavajre1.6.0bin
3. Done

See official readme for details.

Solution 2

I’ve just been struggling with this same problem in Eclipse and I noted that as suggested by the answer above the JBoss site has a thread on this issue saying the same as the answer above to copy files from the jdk to the jre folder.

I noticed that you can avoid having to do this if you define the runtime to be the jdk when you create the server. I didn’t find how to edit an existing server though.

Solution 3

AFAIK, the JRE usually doesn’t ship with a server VM (only the client VM). If you really need the server VM, you have to use the JDK installation.

See Oracle Java for Developers Download page for JRE’s with Server VM.

This will be a quick tip, as it is about a problem that one of my collegues faced with, few days ago.
During my research, I have seen that the information related with the error is not publically available or documented, so that I thought it maybe a good thing to write about it

The problem was encountered while doing an EBS 12.2.6 installation on Oracle Linux 7.3 (64bit).The error was seen during very basic Rapidwiz executions such as while executing RapidWizVersion or while executing wrapper scripts that calls java such as buildStage.sh.

Well, this error was actually a java/jvm error and it was displayed in the following format;

Error: no `server’ JVM at `<your_stage_location/startCD/Disk1/rapidwiz/jre/Linux_x64/1.6.0/lib/i386/server/libjvm.so’

Note: There may be other errors as well.

When ignored or skipped somehow, the installation may get stuck in the next stages.

Well… This error is caused by the filesystem, that EBS stage and installation directories reside, being XFS.
I wasn’t there when the problem was encountered but according to my research, I can say that it is caused by the enhancements that are done in modern XFS filesystems.
The most significant feature that will cause this issue is the 64 bit inodes. Especially when the filesystem size is more than 1 TB, these 64 bit inodes became a problem for 32 bit java.. (You see the above path , I mean the Rapidwiz java path path.. It says i386 there..)

Anyways, a workaround for this problem is to use another fileystem, like ext3 or ext4 on Linux. (tested & verified)

Note that, ext4 also supports 64 bit inodes, but it is off by default. following is from the manual;