[
https://issues.apache.org/jira/browse/DAEMON-129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12759199#action_12759199
]
Doug Kiley edited comment on DAEMON-129 at 9/24/09 11:22 AM:
-------------------------------------------------------------
Adam,
I don't have any particular knowledge of the jsvc code, but I have been poking
around for the last day. I could be way off base with what I've done so far,
but judging from the amount of people around the web asking for a fix and the
lack of a solution I bet the problem isn't a simple one.
Here's what I have found:
I got the same initial error message that you got. This led me to look for info
on what replaces libjvm_compat.dylib. Couldn't find anything on that.
Next I found myself in java.c. It looks like what eventually fails is a call to
JNI_CreateJavaVM which used to be in libjvm_compat.dylib. So now we need to
find a new place to load this from.
I wrote the following C program to run through the 6 choices of dylibs that
were in Libraries.
{noformat}
#include <stdio.h>
#include <dlfcn.h>
int main (int argc, const char * argv[]) {
/*
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libclient.dylib
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libhotspot.dylib
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libjawt.dylib
** works
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libjvm.dylib
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libserver.dylib
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libverify.dylib
** works
*/
void* hndl =
dlopen("/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libjawt.dylib",RTLD_GLOBAL|RTLD_NOW);
void* success = dlsym(hndl,"JNI_CreateJavaVM");
if (success != NULL)
{
printf("Found JNI_CreateJavaVM");
}
else
{
printf("NOT FOUND");
}
return 0;
}
{noformat}
As you can see I found two that worked. I couldn't find any info on the web
about the differences between libjawt and libverify.
I changed my java.c to load from libverify.dylib instead of
libjvm_compat.dylib. The only reason I picked liberify is because I found some
Linux forums that were using libverify.so -- this wasn't for jsvc, but some
other project.
My current state is that jsvc will build and it does execute, but it won't grab
any ports. I get 2 processes called jsvc, but they are both owned by root. It
should be that one is owned by root and the other by my Tomcat user.
I am working on getting the project into Xcode so that I can step through it
and see what's going on.
In debug.c I set log_debug_flag to true.
In tomcatctl I set JSVC_DEBUG="-debug -verbose".
I am not getting any error messages to the console or catalina.out/err.
I've tried my Utilities/Java Preferences in both 32 bit and 64 bit mode. No
difference either way.
I'm running Tomcat 5. Maybe I'll try 6 next.
I hope this has given someone else an idea on what to try next.
-Doug
was (Author: dougkiley):
Adam,
I don't have any particular knowledge of the jsvc code, but I have been poking
around for the last day. I could be way off base with what I've done so far,
but judging from the amount of people around the web asking for a fix and the
lack of a solution I bet the problem isn't a simple one.
Here's what I have found:
I got the same initial error message that you got. This led me to look for info
on what replaces libjvm_compat.dylib. Couldn't find anything on that.
Next I found myself in java.c. It looks like what eventually fails is a call to
JNI_CreateJavaVM which used to be in libjvm_compat.dylib. So now we need to
find a new place to load this from.
I wrote the following C program to run through the 6 choices of dylibs that
were in Libraries.
#include <stdio.h>
#include <dlfcn.h>
int main (int argc, const char * argv[]) {
/*
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libclient.dylib
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libhotspot.dylib
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libjawt.dylib
** works
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libjvm.dylib
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libserver.dylib
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libverify.dylib
** works
*/
void* hndl =
dlopen("/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Libraries/libjawt.dylib",RTLD_GLOBAL|RTLD_NOW);
void* success = dlsym(hndl,"JNI_CreateJavaVM");
if (success != NULL)
{
printf("Found JNI_CreateJavaVM");
}
else
{
printf("NOT FOUND");
}
return 0;
}
As you can see I found two that worked. I couldn't find any info on the web
about the differences between libjawt and libverify.
I changed my java.c to load from libverify.dylib instead of
libjvm_compat.dylib. The only reason I picked liberify is because I found some
Linux forums that were using libverify.so -- this wasn't for jsvc, but some
other project.
My current state is that jsvc will build and it does execute, but it won't grab
any ports. I get 2 processes called jsvc, but they are both owned by root. It
should be that one is owned by root and the other by my Tomcat user.
I am working on getting the project into Xcode so that I can step through it
and see what's going on.
In debug.c I set log_debug_flag to true.
In tomcatctl I set JSVC_DEBUG="-debug -verbose".
I am not getting any error messages to the console or catalina.out/err.
I've tried my Utilities/Java Preferences in both 32 bit and 64 bit mode. No
difference either way.
I'm running Tomcat 5. Maybe I'll try 6 next.
I hope this has given someone else an idea on what to try next.
-Doug
> jsvc unable to start in OS X Snow Leopard (10.6)
> ------------------------------------------------
>
> Key: DAEMON-129
> URL: https://issues.apache.org/jira/browse/DAEMON-129
> Project: Commons Daemon
> Issue Type: Bug
> Affects Versions: 1.0.1
> Environment: Mac OS X 10.6, Tomcat 6, JDK 1.6
> Reporter: Adam Singer
>
> After following the directions posted here
> (http://www.malisphoto.com/tips/tomcatonosx.html) I am unable to start up
> jsvc. Starting Tomcat 6 works just fine.
> When I attempt to start jsvc, it immediately exits with the following error:
> 02/09/2009 16:46:42 30987 jsvc error: Cannot load required shell library
> /Library/Java/Home/../Libraries/libjvm_compat.dylib
> 02/09/2009 16:46:42 30986 jsvc error: Service exit with a return value of 1
> Looking in my frameworks, it looks like "libjvm_compat.dylib" doesn't exist
> in Snow Leopard's installations of JDK 1.5 and 1.6. It looks like the
> reference to this file is made in java.c, but I'm not sure what to change
> this to. When changing it to simply "libjvm.dylib", I get this error:
> 03/09/2009 16:20:45 594 jsvc error: Cannot find JVM library entry point
> 03/09/2009 16:20:45 593 jsvc error: Service exit with a return value of 1
> Any thoughts would be much appreciated!
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
