Re: Dependencies on extensions functionality
On 05/02/2012 15:03, Violeta Georgieva wrote: Hi, As I wrote I'm placing the extension jar in C:\apache-tomcat-7.0.25\ext. I tried the following: I specified C:\apache-tomcat-7.0.25\lib as value for catalina.ext.dirs property and now the web application is working. But then I have two questions: - Do we need catalina.ext.dirs at all if we can use only Tomcat's classpath dirs? Let's look through them instead of introducing additional property. I was going to ask you why you were using it! So is your interest purely academic? - Does this mean that we can use only Tomcat's classpath dirs and we cannot specify a custom directory for these extensions? It should work. (As per Konstantin's message) p Thanks Violeta 2012/2/5 Pid p...@pidster.com On 04/02/2012 21:02, Violeta Georgieva wrote: Hi, Here is how one can reproduce the scenario: 1. Start Tomcat 2. Put attached war in webapps folder 3. In the console the following error message is printed: In the example above, where have you placed the extension? Is it in one of Tomcat's classpath directories? p INFO: Deploying web application archive C:\apache-tomcat-7.0.25\webapps\test-web-app.war Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app][Web Application Manifest]: Required extension [test-jar] not found. Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app]: Failure to find [1] required extension(s). Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Error getConfigured Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/test-web-app] startup failed due to previous errors 4. Stop Tomcat 5. Create folder - C:\apache-tomcat-7.0.25\ext 6. Put the attached jar file in the folder created on step 5 7. Start Tomcat with additional VM argument -Dcatalina.ext.dirs=C:/apache-tomcat-7.0.25/ext 8. This time the application is deployed successfully. 9. Request http://localhost:8080/test-web-app/TestServlet 10. Internal Server Error is returned with the following Exception: java.lang.ClassNotFoundException: test.TestExtension org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1701) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546) test.TestServlet.doGet(TestServlet.java:28) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) I did not change any other Tomcat configuration so it is running with defaults. The scenario is that TestServlet (in war file) instantiates TestExtension (in jar file, placed in the ext directory). Regards Violeta 2012/2/4 Christopher Schultz ch...@christopherschultz.net mailto:ch...@christopherschultz.net Violetta, On 2/3/12 8:25 AM, Violeta Georgieva wrote: I have a web application that specifies in the Manifest that wants to use an extension. I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. What is the value of the catalina.ext.dirs system property? Where did you set it? Can you verify that it is set when the JVM actually starts? What files are in the directory or directories specified by catalina.ext.dir? Unfortunately when I request my application I'm receiving ClassNotFoundException. What class cannot be found? Is it found in any of the JAR files you have in your catalina.ext.dir (which is, of course, the whole point of the feature)? I verified that ExtensionValidator.validateApplication() succeeded to find the extension jar file. How did you verify this? Are there logs that suggest your JAR file is being scanned? Please provide them. What could be the problem? May be I'm missing some configuration? You might be, but you haven't provided any configuration to us, so we don't know if you're missing something. Clearly, something is misconfigured. -chris - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org mailto:users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org mailto:users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- [key:62590808] -- [key:62590808] signature.asc Description: OpenPGP digital signature
Re: Dependencies on extensions functionality
I was going to ask you why you were using it! So is your interest purely academic? I have existing applications that are moving to Tomcat from another application server. As dependencies on extensions is a standard mechanism for shared libraries, they use it in order to be independent from the application servers. 2012/2/6 Pid p...@pidster.com On 05/02/2012 15:03, Violeta Georgieva wrote: Hi, As I wrote I'm placing the extension jar in C:\apache-tomcat-7.0.25\ext. I tried the following: I specified C:\apache-tomcat-7.0.25\lib as value for catalina.ext.dirs property and now the web application is working. But then I have two questions: - Do we need catalina.ext.dirs at all if we can use only Tomcat's classpath dirs? Let's look through them instead of introducing additional property. I was going to ask you why you were using it! So is your interest purely academic? - Does this mean that we can use only Tomcat's classpath dirs and we cannot specify a custom directory for these extensions? It should work. (As per Konstantin's message) p Thanks Violeta 2012/2/5 Pid p...@pidster.com On 04/02/2012 21:02, Violeta Georgieva wrote: Hi, Here is how one can reproduce the scenario: 1. Start Tomcat 2. Put attached war in webapps folder 3. In the console the following error message is printed: In the example above, where have you placed the extension? Is it in one of Tomcat's classpath directories? p INFO: Deploying web application archive C:\apache-tomcat-7.0.25\webapps\test-web-app.war Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app][Web Application Manifest]: Required extension [test-jar] not found. Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app]: Failure to find [1] required extension(s). Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Error getConfigured Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/test-web-app] startup failed due to previous errors 4. Stop Tomcat 5. Create folder - C:\apache-tomcat-7.0.25\ext 6. Put the attached jar file in the folder created on step 5 7. Start Tomcat with additional VM argument -Dcatalina.ext.dirs=C:/apache-tomcat-7.0.25/ext 8. This time the application is deployed successfully. 9. Request http://localhost:8080/test-web-app/TestServlet 10. Internal Server Error is returned with the following Exception: java.lang.ClassNotFoundException: test.TestExtension org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1701) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546) test.TestServlet.doGet(TestServlet.java:28) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) I did not change any other Tomcat configuration so it is running with defaults. The scenario is that TestServlet (in war file) instantiates TestExtension (in jar file, placed in the ext directory). Regards Violeta 2012/2/4 Christopher Schultz ch...@christopherschultz.net mailto:ch...@christopherschultz.net Violetta, On 2/3/12 8:25 AM, Violeta Georgieva wrote: I have a web application that specifies in the Manifest that wants to use an extension. I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. What is the value of the catalina.ext.dirs system property? Where did you set it? Can you verify that it is set when the JVM actually starts? What files are in the directory or directories specified by catalina.ext.dir? Unfortunately when I request my application I'm receiving ClassNotFoundException. What class cannot be found? Is it found in any of the JAR files you have in your catalina.ext.dir (which is, of course, the whole point of the feature)? I verified that ExtensionValidator.validateApplication() succeeded to find the extension jar file. How did you verify this? Are there logs that suggest your JAR file is being scanned? Please provide them. What could be the problem? May be I'm missing some configuration? You might be, but you haven't provided any configuration to us, so we don't know if you're missing something. Clearly, something is misconfigured. -chris - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org mailto:users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org mailto:users-h...@tomcat.apache.org
Re: Dependencies on extensions functionality
On 06/02/2012 11:08, Violeta Georgieva wrote: I was going to ask you why you were using it! So is your interest purely academic? I have existing applications that are moving to Tomcat from another application server. As dependencies on extensions is a standard mechanism for shared libraries, they use it in order to be independent from the application servers. I see - in my experience this mechanism is rarely used in web applications. Interesting. p 2012/2/6 Pid p...@pidster.com On 05/02/2012 15:03, Violeta Georgieva wrote: Hi, As I wrote I'm placing the extension jar in C:\apache-tomcat-7.0.25\ext. I tried the following: I specified C:\apache-tomcat-7.0.25\lib as value for catalina.ext.dirs property and now the web application is working. But then I have two questions: - Do we need catalina.ext.dirs at all if we can use only Tomcat's classpath dirs? Let's look through them instead of introducing additional property. I was going to ask you why you were using it! So is your interest purely academic? - Does this mean that we can use only Tomcat's classpath dirs and we cannot specify a custom directory for these extensions? It should work. (As per Konstantin's message) p Thanks Violeta 2012/2/5 Pid p...@pidster.com On 04/02/2012 21:02, Violeta Georgieva wrote: Hi, Here is how one can reproduce the scenario: 1. Start Tomcat 2. Put attached war in webapps folder 3. In the console the following error message is printed: In the example above, where have you placed the extension? Is it in one of Tomcat's classpath directories? p INFO: Deploying web application archive C:\apache-tomcat-7.0.25\webapps\test-web-app.war Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app][Web Application Manifest]: Required extension [test-jar] not found. Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app]: Failure to find [1] required extension(s). Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Error getConfigured Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/test-web-app] startup failed due to previous errors 4. Stop Tomcat 5. Create folder - C:\apache-tomcat-7.0.25\ext 6. Put the attached jar file in the folder created on step 5 7. Start Tomcat with additional VM argument -Dcatalina.ext.dirs=C:/apache-tomcat-7.0.25/ext 8. This time the application is deployed successfully. 9. Request http://localhost:8080/test-web-app/TestServlet 10. Internal Server Error is returned with the following Exception: java.lang.ClassNotFoundException: test.TestExtension org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1701) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546) test.TestServlet.doGet(TestServlet.java:28) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) I did not change any other Tomcat configuration so it is running with defaults. The scenario is that TestServlet (in war file) instantiates TestExtension (in jar file, placed in the ext directory). Regards Violeta 2012/2/4 Christopher Schultz ch...@christopherschultz.net mailto:ch...@christopherschultz.net Violetta, On 2/3/12 8:25 AM, Violeta Georgieva wrote: I have a web application that specifies in the Manifest that wants to use an extension. I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. What is the value of the catalina.ext.dirs system property? Where did you set it? Can you verify that it is set when the JVM actually starts? What files are in the directory or directories specified by catalina.ext.dir? Unfortunately when I request my application I'm receiving ClassNotFoundException. What class cannot be found? Is it found in any of the JAR files you have in your catalina.ext.dir (which is, of course, the whole point of the feature)? I verified that ExtensionValidator.validateApplication() succeeded to find the extension jar file. How did you verify this? Are there logs that suggest your JAR file is being scanned? Please provide them. What could be the problem? May be I'm missing some configuration? You might be, but you haven't provided any configuration to us, so we don't know if you're missing something. Clearly, something is misconfigured. -chris - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org mailto:users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org mailto:users-h...@tomcat.apache.org
Re: Dependencies on extensions functionality
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Pid, On 2/6/12 6:48 AM, Pid wrote: On 06/02/2012 11:08, Violeta Georgieva wrote: I was going to ask you why you were using it! So is your interest purely academic? I have existing applications that are moving to Tomcat from another application server. As dependencies on extensions is a standard mechanism for shared libraries, they use it in order to be independent from the application servers. I see - in my experience this mechanism is rarely used in web applications. Interesting. Yeah, I had never heard of it. Also, the whole metadata-scanning thing seems totally unnecessary: the webapp tries to load a class, and the ClassLoader figures it out. The fact that the metadata exists doesn't really help much. I haven't looked at the validation code, though, so it's possible that the container is supposed to refuse to deploy the webapp if an appropriate extension isn't available. That obviously wasn't happening in Violeta's case because the deployment succeeded but then she got a CNFE. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk8wGqYACgkQ9CaO5/Lv0PAxhQCfQ2NBq+vrLxIREvKp8mFROnw5 mOUAn194PtKwYxvxKv1BJrTAkmnCksfu =X6VY -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Dependencies on extensions functionality
Actually as I wrote in the mail with the scenario: , when I do not specify the catalina.ext.dirs, deployment fails INFO: Deploying web application archive C:\apache-tomcat-7.0.25\webapps\test-web-app.war Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app][Web Application Manifest]: Required extension [test-jar] not found. Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app]: Failure to find [1] required extension(s). Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Error getConfigured Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/test-web-app] startup failed due to previous errors then when I specify catalina.ext.dirs then it fails with CNFE 2012/2/6 Christopher Schultz ch...@christopherschultz.net -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Pid, On 2/6/12 6:48 AM, Pid wrote: On 06/02/2012 11:08, Violeta Georgieva wrote: I was going to ask you why you were using it! So is your interest purely academic? I have existing applications that are moving to Tomcat from another application server. As dependencies on extensions is a standard mechanism for shared libraries, they use it in order to be independent from the application servers. I see - in my experience this mechanism is rarely used in web applications. Interesting. Yeah, I had never heard of it. Also, the whole metadata-scanning thing seems totally unnecessary: the webapp tries to load a class, and the ClassLoader figures it out. The fact that the metadata exists doesn't really help much. I haven't looked at the validation code, though, so it's possible that the container is supposed to refuse to deploy the webapp if an appropriate extension isn't available. That obviously wasn't happening in Violeta's case because the deployment succeeded but then she got a CNFE. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk8wGqYACgkQ9CaO5/Lv0PAxhQCfQ2NBq+vrLxIREvKp8mFROnw5 mOUAn194PtKwYxvxKv1BJrTAkmnCksfu =X6VY -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Dependencies on extensions functionality
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Violeta, On 2/6/12 1:31 PM, Violeta Georgieva wrote: Actually as I wrote in the mail with the scenario: when I do not specify the catalina.ext.dirs, deployment fails INFO: Deploying web application archive C:\apache-tomcat-7.0.25\webapps\test-web-app.war Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app][Web Application Manifest]: Required extension [test-jar] not found. Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app]: Failure to find [1] required extension(s). Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Error getConfigured Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/test-web-app] startup failed due to previous errors then when I specify catalina.ext.dirs then it fails with CNFE Gotcha: so, the validation works properly, but the catalina.ext.dirs doesn't actually get added to the classpath. Oops. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk8wHqkACgkQ9CaO5/Lv0PBXdQCgkvcmuAnGBEmcbrUUtPySGqmS dJUAoJ1KGf/flTDzmNd0JigGEO+7muMD =dog/ -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Dependencies on extensions functionality
Gotcha: so, the validation works properly, but the catalina.ext.dirs doesn't actually get added to the classpath. Oops. that's correct 2012/2/6 Christopher Schultz ch...@christopherschultz.net -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Violeta, On 2/6/12 1:31 PM, Violeta Georgieva wrote: Actually as I wrote in the mail with the scenario: when I do not specify the catalina.ext.dirs, deployment fails INFO: Deploying web application archive C:\apache-tomcat-7.0.25\webapps\test-web-app.war Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app][Web Application Manifest]: Required extension [test-jar] not found. Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app]: Failure to find [1] required extension(s). Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Error getConfigured Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/test-web-app] startup failed due to previous errors then when I specify catalina.ext.dirs then it fails with CNFE Gotcha: so, the validation works properly, but the catalina.ext.dirs doesn't actually get added to the classpath. Oops. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk8wHqkACgkQ9CaO5/Lv0PBXdQCgkvcmuAnGBEmcbrUUtPySGqmS dJUAoJ1KGf/flTDzmNd0JigGEO+7muMD =dog/ -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Dependencies on extensions functionality
On 04/02/2012 21:02, Violeta Georgieva wrote: Hi, Here is how one can reproduce the scenario: 1. Start Tomcat 2. Put attached war in webapps folder 3. In the console the following error message is printed: In the example above, where have you placed the extension? Is it in one of Tomcat's classpath directories? p INFO: Deploying web application archive C:\apache-tomcat-7.0.25\webapps\test-web-app.war Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app][Web Application Manifest]: Required extension [test-jar] not found. Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app]: Failure to find [1] required extension(s). Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Error getConfigured Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/test-web-app] startup failed due to previous errors 4. Stop Tomcat 5. Create folder - C:\apache-tomcat-7.0.25\ext 6. Put the attached jar file in the folder created on step 5 7. Start Tomcat with additional VM argument -Dcatalina.ext.dirs=C:/apache-tomcat-7.0.25/ext 8. This time the application is deployed successfully. 9. Request http://localhost:8080/test-web-app/TestServlet 10. Internal Server Error is returned with the following Exception: java.lang.ClassNotFoundException: test.TestExtension org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1701) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546) test.TestServlet.doGet(TestServlet.java:28) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) I did not change any other Tomcat configuration so it is running with defaults. The scenario is that TestServlet (in war file) instantiates TestExtension (in jar file, placed in the ext directory). Regards Violeta 2012/2/4 Christopher Schultz ch...@christopherschultz.net mailto:ch...@christopherschultz.net Violetta, On 2/3/12 8:25 AM, Violeta Georgieva wrote: I have a web application that specifies in the Manifest that wants to use an extension. I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. What is the value of the catalina.ext.dirs system property? Where did you set it? Can you verify that it is set when the JVM actually starts? What files are in the directory or directories specified by catalina.ext.dir? Unfortunately when I request my application I'm receiving ClassNotFoundException. What class cannot be found? Is it found in any of the JAR files you have in your catalina.ext.dir (which is, of course, the whole point of the feature)? I verified that ExtensionValidator.validateApplication() succeeded to find the extension jar file. How did you verify this? Are there logs that suggest your JAR file is being scanned? Please provide them. What could be the problem? May be I'm missing some configuration? You might be, but you haven't provided any configuration to us, so we don't know if you're missing something. Clearly, something is misconfigured. -chris - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org mailto:users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org mailto:users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- [key:62590808] signature.asc Description: OpenPGP digital signature
Re: Dependencies on extensions functionality
On 04/02/2012 16:44, Violeta Georgieva wrote: Hi, The Dependencies on Extensions mechanism is described in Servlet Spec 3.0 - chapter 10.7.1. It appears to be first documented in Tomcat for Servlet 2.3. In the web application's Manifest file one should describe the following: Extension-List: extension extension-Extension-Name: name extension-Specification-Version: version extension-Implementation-Version: version extension-Implementation-Vendor-Id: vendor in the jar file's Manifest (this is the extension), one should specify: Extension-Name: name Specification-Version: version Implementation-Version: version Implementation-Vendor-Id: vendor I'm curious, what kind of extension are you creating and what for? p So from the spec we have The container must provide a directory for these libraries. The files placed within this directory must be available across all Web applications. The location of this directory is container-specific. The class loader the servlet container uses for loading these library files must be the same for all Web applications within the same JVM. This class loader instance must be somewhere in the chain of parent class loaders of the Web application class loader. From Tomcat sources I can see that while starting web app context (StandardContext.startInternal()) the extensions are checked for availability (ExtensionValidator.validateApplication). I can see again in the ExtensionValidator that catalina.ext.dirs also is scanned while scanning for container level extensions. Unfortunately I cannot find a place where this extensions are made available for web applications. Regards Violeta 2012/2/3 Pid p...@pidster.com On 03/02/2012 13:25, Violeta Georgieva wrote: Hi, I'm using Tomcat 7.0.23 on Windows. I have a web application that specifies in the Manifest that wants to use an extension. How does it do that? I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. How is that property processed? Unfortunately when I request my application I'm receiving ClassNotFoundException. I verified that ExtensionValidator.validateApplication() succeeded to find the extension jar file. What could be the problem? May be I'm missing some configuration? No idea. What are extensions? How is that JAR file added to the/a classloader? p Thanks in advance. Regards Violeta -- [key:62590808] -- [key:62590808] signature.asc Description: OpenPGP digital signature
Re: Dependencies on extensions functionality
here is a link to the attached example https://docs.google.com/open?id=0B-HUwAvkRIKJZTNhMDE1ZjEtY2M0Yy00YjZkLWE4NjktYjAwZWIzMzU2NzQw 2012/2/5 Casper Wandahl Schmidt kalle.pri...@gmail.com Den 05-02-2012 08:18, Violeta Georgieva skrev: I'm attaching again the examples cause I think that one of them was not attached very well. The list strips attachments so you need to upload the files somewhere (eg. rapidshare) and give us a link to download it :) 2012/2/4 Violeta Georgieva miles...@gmail.com mailto:miles...@gmail.com Hi, Here is how one can reproduce the scenario: 1. Start Tomcat 2. Put attached war in webapps folder 3. In the console the following error message is printed: INFO: Deploying web application archive C:\apache-tomcat-7.0.25\**webapps\test-web-app.war Feb 4, 2012 10:41:44 PM org.apache.catalina.util.**ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-**app][Web Application Manifest]: Required extension [test-jar] not found. Feb 4, 2012 10:41:44 PM org.apache.catalina.util.**ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-**app]: Failure to find [1] required extension(s). Feb 4, 2012 10:41:44 PM org.apache.catalina.core.**StandardContext startInternal SEVERE: Error getConfigured Feb 4, 2012 10:41:44 PM org.apache.catalina.core.**StandardContext startInternal SEVERE: Context [/test-web-app] startup failed due to previous errors 4. Stop Tomcat 5. Create folder - C:\apache-tomcat-7.0.25\ext 6. Put the attached jar file in the folder created on step 5 7. Start Tomcat with additional VM argument -Dcatalina.ext.dirs=C:/apache-**tomcat-7.0.25/ext 8. This time the application is deployed successfully. 9. Request http://localhost:8080/test-**web-app/TestServlethttp://localhost:8080/test-web-app/TestServlet 10. Internal Server Error is returned with the following Exception: java.lang.**ClassNotFoundException: test.TestExtension org.apache.catalina.loader.**WebappClassLoader.loadClass(** WebappClassLoader.java:1701) org.apache.catalina.loader.**WebappClassLoader.loadClass(** WebappClassLoader.java:1546) test.TestServlet.doGet(**TestServlet.java:28) javax.servlet.http.**HttpServlet.service(**HttpServlet.java:621) javax.servlet.http.**HttpServlet.service(**HttpServlet.java:722) I did not change any other Tomcat configuration so it is running with defaults. The scenario is that TestServlet (in war file) instantiates TestExtension (in jar file, placed in the ext directory). Regards Violeta 2012/2/4 Christopher Schultz ch...@christopherschultz.net mailto:chris@**christopherschultz.net ch...@christopherschultz.net -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Violetta, On 2/3/12 8:25 AM, Violeta Georgieva wrote: I have a web application that specifies in the Manifest that wants to use an extension. I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. What is the value of the catalina.ext.dirs system property? Where did you set it? Can you verify that it is set when the JVM actually starts? What files are in the directory or directories specified by catalina.ext.dir? Unfortunately when I request my application I'm receiving ClassNotFoundException. What class cannot be found? Is it found in any of the JAR files you have in your catalina.ext.dir (which is, of course, the whole point of the feature)? I verified that ExtensionValidator.**validateApplication() succeeded to find the extension jar file. How did you verify this? Are there logs that suggest your JAR file is being scanned? Please provide them. What could be the problem? May be I'm missing some configuration? You might be, but you haven't provided any configuration to us, so we don't know if you're missing something. Clearly, something is misconfigured. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org http://gpgtools.org/ Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk8tdnIACgkQ9CaO5/**Lv0PCjtQCgkh8h231IQe4SZjkz2J0V** zQh1 r3IAnidzPXJfRdV1TEu3b+**qf0jiplsfA =Lv/W -END PGP SIGNATURE- --**--** - To unsubscribe, e-mail: users-unsubscribe@tomcat.**apache.orgusers-unsubscr...@tomcat.apache.org
Re: Dependencies on extensions functionality
Hi, As I wrote I'm placing the extension jar in C:\apache-tomcat-7.0.25\ext. I tried the following: I specified C:\apache-tomcat-7.0.25\lib as value for catalina.ext.dirs property and now the web application is working. But then I have two questions: - Do we need catalina.ext.dirs at all if we can use only Tomcat's classpath dirs? Let's look through them instead of introducing additional property. - Does this mean that we can use only Tomcat's classpath dirs and we cannot specify a custom directory for these extensions? Thanks Violeta 2012/2/5 Pid p...@pidster.com On 04/02/2012 21:02, Violeta Georgieva wrote: Hi, Here is how one can reproduce the scenario: 1. Start Tomcat 2. Put attached war in webapps folder 3. In the console the following error message is printed: In the example above, where have you placed the extension? Is it in one of Tomcat's classpath directories? p INFO: Deploying web application archive C:\apache-tomcat-7.0.25\webapps\test-web-app.war Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app][Web Application Manifest]: Required extension [test-jar] not found. Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app]: Failure to find [1] required extension(s). Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Error getConfigured Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/test-web-app] startup failed due to previous errors 4. Stop Tomcat 5. Create folder - C:\apache-tomcat-7.0.25\ext 6. Put the attached jar file in the folder created on step 5 7. Start Tomcat with additional VM argument -Dcatalina.ext.dirs=C:/apache-tomcat-7.0.25/ext 8. This time the application is deployed successfully. 9. Request http://localhost:8080/test-web-app/TestServlet 10. Internal Server Error is returned with the following Exception: java.lang.ClassNotFoundException: test.TestExtension org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1701) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546) test.TestServlet.doGet(TestServlet.java:28) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) I did not change any other Tomcat configuration so it is running with defaults. The scenario is that TestServlet (in war file) instantiates TestExtension (in jar file, placed in the ext directory). Regards Violeta 2012/2/4 Christopher Schultz ch...@christopherschultz.net mailto:ch...@christopherschultz.net Violetta, On 2/3/12 8:25 AM, Violeta Georgieva wrote: I have a web application that specifies in the Manifest that wants to use an extension. I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. What is the value of the catalina.ext.dirs system property? Where did you set it? Can you verify that it is set when the JVM actually starts? What files are in the directory or directories specified by catalina.ext.dir? Unfortunately when I request my application I'm receiving ClassNotFoundException. What class cannot be found? Is it found in any of the JAR files you have in your catalina.ext.dir (which is, of course, the whole point of the feature)? I verified that ExtensionValidator.validateApplication() succeeded to find the extension jar file. How did you verify this? Are there logs that suggest your JAR file is being scanned? Please provide them. What could be the problem? May be I'm missing some configuration? You might be, but you haven't provided any configuration to us, so we don't know if you're missing something. Clearly, something is misconfigured. -chris - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org mailto:users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org mailto:users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- [key:62590808]
Re: Dependencies on extensions functionality
2012/2/5 Violeta Georgieva miles...@gmail.com: Hi, As I wrote I'm placing the extension jar in C:\apache-tomcat-7.0.25\ext. I tried the following: I specified C:\apache-tomcat-7.0.25\lib as value for catalina.ext.dirs property and now the web application is working. But then I have two questions: - Do we need catalina.ext.dirs at all if we can use only Tomcat's classpath dirs? Let's look through them instead of introducing additional property. Good question. Please file a bug in Bugzilla. You can include a link to this thread. Searching the sources for catalina.ext.dirs it is mentioned in ExtensionValidator.java source only. It is never mentioned in User Guide or Configuration Reference. It should be added to docs/config/systemprops.html and maybe mentioned in docs/class-loader-howto.html Searching just for ext.dirs you see one more place, AntCompiler.java, that uses just java.ext.dirs and not catalina one. So maybe you had to redefine the java.ext.dirs property, like catalina.sh does with java.endorsed.dirs. I wonder how did you found this catalina.ext.dirs property. From Javadoc? - Does this mean that we can use only Tomcat's classpath dirs and we cannot specify a custom directory for these extensions? You can. You can reconfigure classpath in the conf/catalina.properties file. Best regards, Konstantin Kolinko - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Dependencies on extensions functionality
Hi, Here is the bug that I created: https://issues.apache.org/bugzilla/show_bug.cgi?id=52607 I didn't find catalina.ext.dirs property in the documentation. I just attached the debugger and checked the sources while executing the scenario ;-) Thanks and Regards Violeta 2012/2/5 Konstantin Kolinko knst.koli...@gmail.com 2012/2/5 Violeta Georgieva miles...@gmail.com: Hi, As I wrote I'm placing the extension jar in C:\apache-tomcat-7.0.25\ext. I tried the following: I specified C:\apache-tomcat-7.0.25\lib as value for catalina.ext.dirs property and now the web application is working. But then I have two questions: - Do we need catalina.ext.dirs at all if we can use only Tomcat's classpath dirs? Let's look through them instead of introducing additional property. Good question. Please file a bug in Bugzilla. You can include a link to this thread. Searching the sources for catalina.ext.dirs it is mentioned in ExtensionValidator.java source only. It is never mentioned in User Guide or Configuration Reference. It should be added to docs/config/systemprops.html and maybe mentioned in docs/class-loader-howto.html Searching just for ext.dirs you see one more place, AntCompiler.java, that uses just java.ext.dirs and not catalina one. So maybe you had to redefine the java.ext.dirs property, like catalina.sh does with java.endorsed.dirs. I wonder how did you found this catalina.ext.dirs property. From Javadoc? - Does this mean that we can use only Tomcat's classpath dirs and we cannot specify a custom directory for these extensions? You can. You can reconfigure classpath in the conf/catalina.properties file. Best regards, Konstantin Kolinko - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Dependencies on extensions functionality
Hi, The Dependencies on Extensions mechanism is described in Servlet Spec 3.0 - chapter 10.7.1. In the web application's Manifest file one should describe the following: Extension-List: extension extension-Extension-Name: name extension-Specification-Version: version extension-Implementation-Version: version extension-Implementation-Vendor-Id: vendor in the jar file's Manifest (this is the extension), one should specify: Extension-Name: name Specification-Version: version Implementation-Version: version Implementation-Vendor-Id: vendor So from the spec we have The container must provide a directory for these libraries. The files placed within this directory must be available across all Web applications. The location of this directory is container-specific. The class loader the servlet container uses for loading these library files must be the same for all Web applications within the same JVM. This class loader instance must be somewhere in the chain of parent class loaders of the Web application class loader. From Tomcat sources I can see that while starting web app context (StandardContext.startInternal()) the extensions are checked for availability (ExtensionValidator.validateApplication). I can see again in the ExtensionValidator that catalina.ext.dirs also is scanned while scanning for container level extensions. Unfortunately I cannot find a place where this extensions are made available for web applications. Regards Violeta 2012/2/3 Pid p...@pidster.com On 03/02/2012 13:25, Violeta Georgieva wrote: Hi, I'm using Tomcat 7.0.23 on Windows. I have a web application that specifies in the Manifest that wants to use an extension. How does it do that? I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. How is that property processed? Unfortunately when I request my application I'm receiving ClassNotFoundException. I verified that ExtensionValidator.validateApplication() succeeded to find the extension jar file. What could be the problem? May be I'm missing some configuration? No idea. What are extensions? How is that JAR file added to the/a classloader? p Thanks in advance. Regards Violeta -- [key:62590808]
Re: Dependencies on extensions functionality
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Violetta, On 2/3/12 8:25 AM, Violeta Georgieva wrote: I have a web application that specifies in the Manifest that wants to use an extension. I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. What is the value of the catalina.ext.dirs system property? Where did you set it? Can you verify that it is set when the JVM actually starts? What files are in the directory or directories specified by catalina.ext.dir? Unfortunately when I request my application I'm receiving ClassNotFoundException. What class cannot be found? Is it found in any of the JAR files you have in your catalina.ext.dir (which is, of course, the whole point of the feature)? I verified that ExtensionValidator.validateApplication() succeeded to find the extension jar file. How did you verify this? Are there logs that suggest your JAR file is being scanned? Please provide them. What could be the problem? May be I'm missing some configuration? You might be, but you haven't provided any configuration to us, so we don't know if you're missing something. Clearly, something is misconfigured. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk8tdnIACgkQ9CaO5/Lv0PCjtQCgkh8h231IQe4SZjkz2J0VzQh1 r3IAnidzPXJfRdV1TEu3b+qf0jiplsfA =Lv/W -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Dependencies on extensions functionality
Hi, Here is how one can reproduce the scenario: 1. Start Tomcat 2. Put attached war in webapps folder 3. In the console the following error message is printed: INFO: Deploying web application archive C:\apache-tomcat-7.0.25\webapps\test-web-app.war Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app][Web Application Manifest]: Required extension [test-jar] not found. Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app]: Failure to find [1] required extension(s). Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Error getConfigured Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/test-web-app] startup failed due to previous errors 4. Stop Tomcat 5. Create folder - C:\apache-tomcat-7.0.25\ext 6. Put the attached jar file in the folder created on step 5 7. Start Tomcat with additional VM argument -Dcatalina.ext.dirs=C:/apache-tomcat-7.0.25/ext 8. This time the application is deployed successfully. 9. Request http://localhost:8080/test-web-app/TestServlet 10. Internal Server Error is returned with the following Exception: java.lang.ClassNotFoundException: test.TestExtension org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1701) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546) test.TestServlet.doGet(TestServlet.java:28) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) I did not change any other Tomcat configuration so it is running with defaults. The scenario is that TestServlet (in war file) instantiates TestExtension (in jar file, placed in the ext directory). Regards Violeta 2012/2/4 Christopher Schultz ch...@christopherschultz.net -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Violetta, On 2/3/12 8:25 AM, Violeta Georgieva wrote: I have a web application that specifies in the Manifest that wants to use an extension. I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. What is the value of the catalina.ext.dirs system property? Where did you set it? Can you verify that it is set when the JVM actually starts? What files are in the directory or directories specified by catalina.ext.dir? Unfortunately when I request my application I'm receiving ClassNotFoundException. What class cannot be found? Is it found in any of the JAR files you have in your catalina.ext.dir (which is, of course, the whole point of the feature)? I verified that ExtensionValidator.validateApplication() succeeded to find the extension jar file. How did you verify this? Are there logs that suggest your JAR file is being scanned? Please provide them. What could be the problem? May be I'm missing some configuration? You might be, but you haven't provided any configuration to us, so we don't know if you're missing something. Clearly, something is misconfigured. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk8tdnIACgkQ9CaO5/Lv0PCjtQCgkh8h231IQe4SZjkz2J0VzQh1 r3IAnidzPXJfRdV1TEu3b+qf0jiplsfA =Lv/W -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org test-jar.jar Description: application/java-archive - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Dependencies on extensions functionality
Den 05-02-2012 08:18, Violeta Georgieva skrev: I'm attaching again the examples cause I think that one of them was not attached very well. The list strips attachments so you need to upload the files somewhere (eg. rapidshare) and give us a link to download it :) 2012/2/4 Violeta Georgieva miles...@gmail.com mailto:miles...@gmail.com Hi, Here is how one can reproduce the scenario: 1. Start Tomcat 2. Put attached war in webapps folder 3. In the console the following error message is printed: INFO: Deploying web application archive C:\apache-tomcat-7.0.25\webapps\test-web-app.war Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app][Web Application Manifest]: Required extension [test-jar] not found. Feb 4, 2012 10:41:44 PM org.apache.catalina.util.ExtensionValidator validateManifestResources INFO: ExtensionValidator[/test-web-app]: Failure to find [1] required extension(s). Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Error getConfigured Feb 4, 2012 10:41:44 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/test-web-app] startup failed due to previous errors 4. Stop Tomcat 5. Create folder - C:\apache-tomcat-7.0.25\ext 6. Put the attached jar file in the folder created on step 5 7. Start Tomcat with additional VM argument -Dcatalina.ext.dirs=C:/apache-tomcat-7.0.25/ext 8. This time the application is deployed successfully. 9. Request http://localhost:8080/test-web-app/TestServlet 10. Internal Server Error is returned with the following Exception: java.lang.ClassNotFoundException: test.TestExtension org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1701) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546) test.TestServlet.doGet(TestServlet.java:28) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) I did not change any other Tomcat configuration so it is running with defaults. The scenario is that TestServlet (in war file) instantiates TestExtension (in jar file, placed in the ext directory). Regards Violeta 2012/2/4 Christopher Schultz ch...@christopherschultz.net mailto:ch...@christopherschultz.net -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Violetta, On 2/3/12 8:25 AM, Violeta Georgieva wrote: I have a web application that specifies in the Manifest that wants to use an extension. I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. What is the value of the catalina.ext.dirs system property? Where did you set it? Can you verify that it is set when the JVM actually starts? What files are in the directory or directories specified by catalina.ext.dir? Unfortunately when I request my application I'm receiving ClassNotFoundException. What class cannot be found? Is it found in any of the JAR files you have in your catalina.ext.dir (which is, of course, the whole point of the feature)? I verified that ExtensionValidator.validateApplication() succeeded to find the extension jar file. How did you verify this? Are there logs that suggest your JAR file is being scanned? Please provide them. What could be the problem? May be I'm missing some configuration? You might be, but you haven't provided any configuration to us, so we don't know if you're missing something. Clearly, something is misconfigured. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org http://gpgtools.org/ Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk8tdnIACgkQ9CaO5/Lv0PCjtQCgkh8h231IQe4SZjkz2J0VzQh1 r3IAnidzPXJfRdV1TEu3b+qf0jiplsfA =Lv/W -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org mailto:users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org mailto:users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Dependencies on extensions functionality
On 03/02/2012 13:25, Violeta Georgieva wrote: Hi, I'm using Tomcat 7.0.23 on Windows. I have a web application that specifies in the Manifest that wants to use an extension. How does it do that? I specify catalina.ext.dirs to point to the directory where I placed my extensions jar files. How is that property processed? Unfortunately when I request my application I'm receiving ClassNotFoundException. I verified that ExtensionValidator.validateApplication() succeeded to find the extension jar file. What could be the problem? May be I'm missing some configuration? No idea. What are extensions? How is that JAR file added to the/a classloader? p Thanks in advance. Regards Violeta -- [key:62590808] signature.asc Description: OpenPGP digital signature
