Re: java.library.path / Unsatisfied Link Error problem with Linux Tomcat 5.5
Solved! I found the source of the problem after following your links below. Not only do you need to place the jar file in the tomcat/shared/lib folder, you need to place the .so there and then adjust the java.library.path on JAVA_OPTS to point there. My .so was originally living in a directory under my user. I also made sure that the .so is owned by the tomcat user and is set for execute privileges. Not sure if all those things are strictly necessary, but certainly the placement of the .so in the shared/lib folder is. Thanks very much to you all for continuing to generate ideas for me to try out!!! Konstantin Kolinko wrote: Is your third-party jar placed into the shared libraries folder as it should be? See http://wiki.apache.org/tomcat/HowTo#head-a4b7185ee95d0cf14a48f92c08d1eb66b561139d http://forum.java.sun.com/thread.jspa?threadID=780109 See also http://java.sun.com/docs/books/jni/html/design.html chapters 11.2.3 and 11.2.4. Is the script file /etc/init.d/tomcat editable for you? E.g., to define the JAVA_OPTS there? Or you are defining them in a profile file of the user that is su-ed to run the tomcat? Looking forward to your results with JSP. 2007/10/17, David Marshall [EMAIL PROTECTED]: I'm not doing a System.loadLibrary. The library is needed by a third-party jar that I am using. SInce it works from within Eclipse I know that their jar and the shared object (.so file) work correctly together and that the shared object is indeed in the correct location on library path. Its only when I deploy to the production version of Tomcat (on the same machine) that this stuff fails. At that point I don't have Eclipse's VM parameter setting abilities available to me and the only place to put it is in JAVA_OPTS. From the tomcat log file I can see that the java.library.path is set as intended. I'll try your JSP idea just to be 100% the path is set correctly. Filip Hanik - Dev Lists wrote: and that your library is valid, and that you are calling System.loadLibrary with the correct name Filip David Marshall wrote: Filip : Thanks. I didn't literally mean X. The library it won't load is called Netica. I just changed it to X to be more general. I hope I'm not just creating confusion for everyone. thanks dm Filip Hanik - Dev Lists wrote: I believe there is a -Djava.awt.headless=true or something like that, so that it doesn't try to load your X windows environment Filip David Marshall wrote: Using Tomcat 5.5 on Linux. I've set my environment variable with export JAVA_OPTS='-Djava.library.path=/path/to/my/sharedobjectfolder' After restarting tomcat and hitting my servlet (which depends on the .so file in the folder above) I get an UnsatisfiedLinkError no X found in java.library.path I've looked in catalina.out and see a message that says that The Apache Tomcat Native library cannot be found on java.library.path: /path/to/my/sharedobjectfolder. So it appears that Tomcat is using the path at least when it starts up. I've seen other Linux Tomcat users raising this same problem and not getting any answers. Within Eclipse I can run Tomcat and configure a VM parameter for java.library.path and my library is successfully found when the servlet runs so this issue only pertains to running tomcat directly from the startup scripts (e.g. /etc/init.d/tomcat start) What could be wrong? - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- David Marshall Staff Software Engineer Center For Knowledge Communication Computer Science Dept. University of Massachusetts - Amherst www.cs.umass.edu/~marshall - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- David Marshall Staff Software Engineer Center For Knowledge Communication Computer Science Dept. University of Massachusetts - Amherst www.cs.umass.edu/~marshall - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
java.library.path / Unsatisfied Link Error problem with Linux Tomcat 5.5
Using Tomcat 5.5 on Linux. I've set my environment variable with export JAVA_OPTS='-Djava.library.path=/path/to/my/sharedobjectfolder' After restarting tomcat and hitting my servlet (which depends on the .so file in the folder above) I get an UnsatisfiedLinkError no X found in java.library.path I've looked in catalina.out and see a message that says that The Apache Tomcat Native library cannot be found on java.library.path: /path/to/my/sharedobjectfolder. So it appears that Tomcat is using the path at least when it starts up. I've seen other Linux Tomcat users raising this same problem and not getting any answers. Within Eclipse I can run Tomcat and configure a VM parameter for java.library.path and my library is successfully found when the servlet runs so this issue only pertains to running tomcat directly from the startup scripts (e.g. /etc/init.d/tomcat start) What could be wrong? -- David Marshall Staff Software Engineer Center For Knowledge Communication Computer Science Dept. University of Massachusetts - Amherst www.cs.umass.edu/~marshall - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: java.library.path / Unsatisfied Link Error problem with Linux Tomcat 5.5
Filip : Thanks. I didn't literally mean X. The library it won't load is called Netica. I just changed it to X to be more general. I hope I'm not just creating confusion for everyone. thanks dm Filip Hanik - Dev Lists wrote: I believe there is a -Djava.awt.headless=true or something like that, so that it doesn't try to load your X windows environment Filip David Marshall wrote: Using Tomcat 5.5 on Linux. I've set my environment variable with export JAVA_OPTS='-Djava.library.path=/path/to/my/sharedobjectfolder' After restarting tomcat and hitting my servlet (which depends on the .so file in the folder above) I get an UnsatisfiedLinkError no X found in java.library.path I've looked in catalina.out and see a message that says that The Apache Tomcat Native library cannot be found on java.library.path: /path/to/my/sharedobjectfolder. So it appears that Tomcat is using the path at least when it starts up. I've seen other Linux Tomcat users raising this same problem and not getting any answers. Within Eclipse I can run Tomcat and configure a VM parameter for java.library.path and my library is successfully found when the servlet runs so this issue only pertains to running tomcat directly from the startup scripts (e.g. /etc/init.d/tomcat start) What could be wrong? - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- David Marshall Staff Software Engineer Center For Knowledge Communication Computer Science Dept. University of Massachusetts - Amherst www.cs.umass.edu/~marshall - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: java.library.path / Unsatisfied Link Error problem with Linux Tomcat 5.5
I'm not doing a System.loadLibrary. The library is needed by a third-party jar that I am using. SInce it works from within Eclipse I know that their jar and the shared object (.so file) work correctly together and that the shared object is indeed in the correct location on library path. Its only when I deploy to the production version of Tomcat (on the same machine) that this stuff fails. At that point I don't have Eclipse's VM parameter setting abilities available to me and the only place to put it is in JAVA_OPTS. From the tomcat log file I can see that the java.library.path is set as intended. I'll try your JSP idea just to be 100% the path is set correctly. Filip Hanik - Dev Lists wrote: and that your library is valid, and that you are calling System.loadLibrary with the correct name Filip David Marshall wrote: Filip : Thanks. I didn't literally mean X. The library it won't load is called Netica. I just changed it to X to be more general. I hope I'm not just creating confusion for everyone. thanks dm Filip Hanik - Dev Lists wrote: I believe there is a -Djava.awt.headless=true or something like that, so that it doesn't try to load your X windows environment Filip David Marshall wrote: Using Tomcat 5.5 on Linux. I've set my environment variable with export JAVA_OPTS='-Djava.library.path=/path/to/my/sharedobjectfolder' After restarting tomcat and hitting my servlet (which depends on the .so file in the folder above) I get an UnsatisfiedLinkError no X found in java.library.path I've looked in catalina.out and see a message that says that The Apache Tomcat Native library cannot be found on java.library.path: /path/to/my/sharedobjectfolder. So it appears that Tomcat is using the path at least when it starts up. I've seen other Linux Tomcat users raising this same problem and not getting any answers. Within Eclipse I can run Tomcat and configure a VM parameter for java.library.path and my library is successfully found when the servlet runs so this issue only pertains to running tomcat directly from the startup scripts (e.g. /etc/init.d/tomcat start) What could be wrong? - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- David Marshall Staff Software Engineer Center For Knowledge Communication Computer Science Dept. University of Massachusetts - Amherst www.cs.umass.edu/~marshall - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: java.library.path / Unsatisfied Link Error problem with Linux Tomcat 5.5
Yes. its in TOMCAT_HOME/shared/lib Konstantin Kolinko wrote: Is your third-party jar placed into the shared libraries folder as it should be? See http://wiki.apache.org/tomcat/HowTo#head-a4b7185ee95d0cf14a48f92c08d1eb66b561139d http://forum.java.sun.com/thread.jspa?threadID=780109 See also http://java.sun.com/docs/books/jni/html/design.html chapters 11.2.3 and 11.2.4. Is the script file /etc/init.d/tomcat editable for you? E.g., to define the JAVA_OPTS there? Or you are defining them in a profile file of the user that is su-ed to run the tomcat? Looking forward to your results with JSP. 2007/10/17, David Marshall [EMAIL PROTECTED]: I'm not doing a System.loadLibrary. The library is needed by a third-party jar that I am using. SInce it works from within Eclipse I know that their jar and the shared object (.so file) work correctly together and that the shared object is indeed in the correct location on library path. Its only when I deploy to the production version of Tomcat (on the same machine) that this stuff fails. At that point I don't have Eclipse's VM parameter setting abilities available to me and the only place to put it is in JAVA_OPTS. From the tomcat log file I can see that the java.library.path is set as intended. I'll try your JSP idea just to be 100% the path is set correctly. Filip Hanik - Dev Lists wrote: and that your library is valid, and that you are calling System.loadLibrary with the correct name Filip David Marshall wrote: Filip : Thanks. I didn't literally mean X. The library it won't load is called Netica. I just changed it to X to be more general. I hope I'm not just creating confusion for everyone. thanks dm Filip Hanik - Dev Lists wrote: I believe there is a -Djava.awt.headless=true or something like that, so that it doesn't try to load your X windows environment Filip David Marshall wrote: Using Tomcat 5.5 on Linux. I've set my environment variable with export JAVA_OPTS='-Djava.library.path=/path/to/my/sharedobjectfolder' After restarting tomcat and hitting my servlet (which depends on the .so file in the folder above) I get an UnsatisfiedLinkError no X found in java.library.path I've looked in catalina.out and see a message that says that The Apache Tomcat Native library cannot be found on java.library.path: /path/to/my/sharedobjectfolder. So it appears that Tomcat is using the path at least when it starts up. I've seen other Linux Tomcat users raising this same problem and not getting any answers. Within Eclipse I can run Tomcat and configure a VM parameter for java.library.path and my library is successfully found when the servlet runs so this issue only pertains to running tomcat directly from the startup scripts (e.g. /etc/init.d/tomcat start) What could be wrong? - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- David Marshall Staff Software Engineer Center For Knowledge Communication Computer Science Dept. University of Massachusetts - Amherst www.cs.umass.edu/~marshall - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- David Marshall Staff Software Engineer Center For Knowledge Communication Computer Science Dept. University of Massachusetts - Amherst www.cs.umass.edu/~marshall - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: java.library.path / Unsatisfied Link Error problem with Linux Tomcat 5.5
I have tried editing the tomcat scripts (catalina.sh) to set JAVA_OPTS in there and it didn't solve the problem. Currently I set the JAVA_OPTS in my user .bashrc and .bash_profile. So when I run the startup script the user is me ( I have to run the script with sudo). I'm verifying that JAVA_OPTS is set with a printenv before running tomcat start Is the script file /etc/init.d/tomcat editable for you? E.g., to define the JAVA_OPTS there? Or you are defining them in a profile file of the user that is su-ed to run the tomcat? Looking forward to your results with JSP. Thanks. I didn't literally mean X. The library it won't load is called Netica. I just changed it to X to be more general. I hope I'm not just creating confusion for everyone. thanks dm Filip Hanik - Dev Lists wrote: I believe there is a -Djava.awt.headless=true or something like that, so that it doesn't try to load your X windows environment Filip David Marshall wrote: Using Tomcat 5.5 on Linux. I've set my environment variable with export JAVA_OPTS='-Djava.library.path=/path/to/my/sharedobjectfolder' After restarting tomcat and hitting my servlet (which depends on the .so file in the folder above) I get an UnsatisfiedLinkError no X found in java.library.path I've looked in catalina.out and see a message that says that The Apache Tomcat Native library cannot be found on java.library.path: /path/to/my/sharedobjectfolder. So it appears that Tomcat is using the path at least when it starts up. I've seen other Linux Tomcat users raising this same problem and not getting any answers. Within Eclipse I can run Tomcat and configure a VM parameter for java.library.path and my library is successfully found when the servlet runs so this issue only pertains to running tomcat directly from the startup scripts (e.g. /etc/init.d/tomcat start) What could be wrong? - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- David Marshall Staff Software Engineer Center For Knowledge Communication Computer Science Dept. University of Massachusetts - Amherst www.cs.umass.edu/~marshall - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- David Marshall Staff Software Engineer Center For Knowledge Communication Computer Science Dept. University of Massachusetts - Amherst www.cs.umass.edu/~marshall - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: java.library.path / Unsatisfied Link Error problem with Linux Tomcat 5.5
The results of printing System.getProperty(java.library.path) in the jsp does show the correct path to my shared object Looking forward to your results with JSP. 2007/10/17, David Marshall [EMAIL PROTECTED]: I'm not doing a System.loadLibrary. The library is needed by a third-party jar that I am using. SInce it works from within Eclipse I know that their jar and the shared object (.so file) work correctly together and that the shared object is indeed in the correct location on library path. Its only when I deploy to the production version of Tomcat (on the same machine) that this stuff fails. At that point I don't have Eclipse's VM parameter setting abilities available to me and the only place to put it is in JAVA_OPTS. From the tomcat log file I can see that the java.library.path is set as intended. I'll try your JSP idea just to be 100% the path is set correctly. Filip Hanik - Dev Lists wrote: and that your library is valid, and that you are calling System.loadLibrary with the correct name Filip David Marshall wrote: Filip : Thanks. I didn't literally mean X. The library it won't load is called Netica. I just changed it to X to be more general. I hope I'm not just creating confusion for everyone. thanks dm Filip Hanik - Dev Lists wrote: I believe there is a -Djava.awt.headless=true or something like that, so that it doesn't try to load your X windows environment Filip David Marshall wrote: Using Tomcat 5.5 on Linux. I've set my environment variable with export JAVA_OPTS='-Djava.library.path=/path/to/my/sharedobjectfolder' After restarting tomcat and hitting my servlet (which depends on the .so file in the folder above) I get an UnsatisfiedLinkError no X found in java.library.path I've looked in catalina.out and see a message that says that The Apache Tomcat Native library cannot be found on java.library.path: /path/to/my/sharedobjectfolder. So it appears that Tomcat is using the path at least when it starts up. I've seen other Linux Tomcat users raising this same problem and not getting any answers. Within Eclipse I can run Tomcat and configure a VM parameter for java.library.path and my library is successfully found when the servlet runs so this issue only pertains to running tomcat directly from the startup scripts (e.g. /etc/init.d/tomcat start) What could be wrong? - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- David Marshall Staff Software Engineer Center For Knowledge Communication Computer Science Dept. University of Massachusetts - Amherst www.cs.umass.edu/~marshall - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- David Marshall Staff Software Engineer Center For Knowledge Communication Computer Science Dept. University of Massachusetts - Amherst www.cs.umass.edu/~marshall - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
