I have 2 java web apps that need to connect to SQL Server Database using Windows Integrated Authentication.
The first one that is loaded works fine but the second one throws the exception:
Native Library sqljdbc_auth.dll already loaded in another classloader
The error above occurs when I place the sqljdbc_auth.dll in one of the folders:
C:\WINDOWS\system32\
C:\Program Files\Apache Software Foundation\Tomcat 7.0\bin\
If I place the sqljdbc_auth.dll in one of the folders below:
/WEB-INF/lib directory of each web application
C:\Program Files\Apache Software Foundation\Tomcat 7.0\lib\
Both apps throw the exception:
Failed to load the sqljdbc_auth.dll cause :- no sqljdbc_auth in java.library.path
I am using this code to load the driver:
Class.forName("jdbc:sqlserver://<HOST>;databaseName=<DBNAME>;integratedSecurity=true;");
How can I solve it?
Each web application has its own Classloader (isolating them). When you call the Class.forName() method, there is a static block which is trying to load the shared library (dll file) - so both your web apps are trying to load the shared lib, hence the error message when the second one attempts to load.
The JDBC jar you have for sqlserver should be moved from being bundled with your wars, to the tomcat 7.0/lib folder and copy the sqljdbc_auth.dll to tomcat/bin folder - this way it will be in the tomcat parent classloader, and the class will only be loaded once.
|----------------------------------|
| sqljdbc*.jar --> tomcat*/lib |
|----------------------------------|
| sqljdbc_auth.dll --> tomcat*/bin |
|----------------------------------|
I think you are on the right track.
For command line startup you can easily solve the no sqljdbc_auth in java.library.path issue by setting the environment variable
CATALINA_OPTS=-Djava.library.path=/path/to/dll
If you are running tomcat as a service, change the Options parameter under
HKEY_LOCAL_MACHINE\SOFTWARE\Apache Software Foundation\Procrun 2.0\Tomcat7\Parameters\Java
to include:
-Djava.library.path=/path/to/dll
The same error occurs in Jasper Studio.
Probably not the best solution but place the sqljdbc4.jar in C:\Program Files (x86)\TIBCO\Jaspersoft Studio-6.1.0.final\features\jre.win32.win32.x86.feature_1.7.0.u80\jre\lib\ext and the sqljdbc_auth.dll in C:\Program Files (x86)\TIBCO\Jaspersoft Studio-6.1.0.final\features\jre.win32.win32.x86.feature_1.7.0.u80\jre\bin
And it will work.
Related
I am trying to set up On Demand Server in my local machine and when ever I am deploying the application on tomcat server I am getting below error message on browser. I have updated the PATH variable also.
root cause
java.lang.UnsatisfiedLinkError: ars3wapi32 (Not found in java.library.path)
java.lang.ClassLoader.loadLibraryWithPath(ClassLoader.java:1007)
java.lang.ClassLoader.loadLibraryWithClassLoader(ClassLoader.java:971)
java.lang.System.loadLibrary(System.java:470)
com.ibm.edms.od.ArsWWWInterface.<clinit>(ArsWWWInterface.java:15)
java.lang.J9VMInternals.initializeImpl(Native Method)
java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
com.ibm.edms.od.ODServer.<init>(ODServer.java:45)
com.ibm.edms.od.ODServer.<init>(ODServer.java:61)
com.uklife.web.ondemand.utils.DownloadUtils.getAFPDocumentFromOnDemand(DownloadUtils.java:80)
com.uklife.web.ondemand.utils.Utils.getDocument(Utils.java:288)
com.uklife.web.ondemand.servlet.OnDemandDocAccess.doGet(OnDemandDocAccess.java:81)
javax.servlet.http.HttpServlet.s`enter code here`ervice(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722
)
Here is a guide the solution (for Windows and OnDemand V9.5).
First of all, you need to install ODWEK on the machine where you want to run your java app. Please install in the default folder, this whole thing is tricky enough as it is...
Set the environment variable "PATH" in Windows, add "C:\Program Files\IBM\OnDemand\V9.5\bin"
Set CLASSPATH in your development environment - point out the ODApi.jar file and ALSO point "Native library..." to the \bin folder above. (You can also call the program and setting the CLASSPATH in the call as a parameter: -Djava.library.path="C:\Program Files\IBM\OnDemand\V9.5\www\api\ODapi.jar"
Copy the file ars3wapi64.dll from C:\Program Files\IBM\V9.5\www to C:\Program Files\IBM\OnDemand\V9.5\bin
Ensure that all of these files are in the bin-catalog above:
**ars3wapi64.dll**
icudt53.dll
icuin53.dll
icuio53.dll
icule53.dll
iculx53.dll
icuuc53.dll
arsgsk64.dll
If you are getting the error "java.lang.UnsatisfiedLinkError: ars3wapi32 (Not found in java.library.path)" one of the above is most likely incorrect.
OR you could be using different versions of ODWEK and OnDemand.
More on how to set CLASSPATH in Eclipse: How to set the java.library.path from Eclipse
I need help figuring out why a couple of my web applications are intermittently throwing 404 errors when trying to bring up a JSP. One of them has the JSP accessed directly and the other has a servlet that is forwarding to a JSP. The pages work most of the time, but occasionally will throw a 404. If the user refreshes their browser 1-3 times, the page starts working again without any changes required.
Here is a sample of the error as seen in the web browser (Chrome):
type: Status report
message: /app_root/my_page.jsp
description: The requested resource is not available
The problem seems to be related to recompiling the JSP pages. The .war file and expanded directory haven't changed. There are always three errors in the logs that correspond to each 404 error:
WARNING: Failed to delete generated class file [D:\Apache Software Foundation\Tomcat 7.0\work\Catalina\localhost\app_root\org\apache\jsp\my_005fpage_jsp.class]
May 19, 2015 6:32:24 AM org.apache.jasper.compiler.Compiler removeGeneratedFiles
WARNING: Failed to delete generated Java file [D:\Apache Software Foundation\Tomcat 7.0\work\Catalina\localhost\app_root\org\apache\jsp\my_005fpage_jsp.java]
May 19, 2015 6:32:24 AM org.apache.jasper.compiler.Compiler generateJava
WARNING: Failed to delete generated Java file [D:\Apache Software Foundation\Tomcat 7.0\work\Catalina\localhost\app_root\org\apache\jsp\my_005fpage_jsp.java]
I'm running Java 1.7 on Tomcat 7.0.53. Tomcat is running on a Windows 2008 R2 server.
Here is what I've tried so far, based on the information I've found from google. However, the 404's continue.
Disabled Windows indexing on the entire Tomcat directory
Turned off development mode in my production environment
Increased modificationTestInterval in my QA environment from the default (4 seconds) to 3600 (1 hour) [Note: it is currently set to 0 to try to help me reproduce the issue]
Changed the owner on the Tomcat work directory to be the same id as the id that the service is running as.
I am in the process of getting anti-virus turned off on the work directory to see if that helps.
While this issue is occurring on my prod and QA servers, it doesn't occur for me on my local Tomcat instance. In fact, I have yet to see the problem from my workstation even when running the QA and Prod applications. The issue has only been seen by other people.
The Tomcat container caches .java and .class files generated by the JSP parser, which are used by the web application. Sometimes these get corrupted or cannot be found. This may occur after a patch or upgrade that contains modifications to JSPs.
Solution is to just simply delete the work directory and restart the tomcat
I had the same problem after deploying a .war on our live server. These are the steps that I followed to solve the problem:
1) Shut down the tomcat server
2) Go to <your tomcat directory> -> work -> Catalina -> localhost -> <your project> -> org -> apache -> jsp ->
3) Manually delete both .class and .java
4) Delete the .war file and the deployed folder from the website that is having the issue on the webapps folder.
5) Export a new .war, and put it into the webapps folder.
6) Start up the tomcat service again.
Once the server is finished deploying, it will auto re-generate the deleted files in the "work" directory and the website should be available again without the intermittent 404 error.
I hope it works for you too.
Check the authority of this file or folder. Generally this problem is caused by lack of access to folders.
I´m trying to work with eclipse and export my web apps made in netbeans, i just add a new server, download glassfish tools, and shows me an error:
Unable to start server due following issues:
Launch process failed with exit code 1
Launching GlassFish on Felix platform
ERROR: Error creating bundle cache. (java.lang.Exception: Unable to create bundle cache lock file: java.io.FileNotFoundException: C:\Program Files (x86)\glassfish-4.1\glassfish\domains\domain1\osgi-cache\felix\cache.lock (Acceso denegado))
java.lang.Exception: Unable to create bundle cache lock file: java.io.FileNotFoundException: C:\Program Files (x86)\glassfish-4.1\glassfish\domains\domain1\osgi-cache\felix\cache.lock (Acceso denegado)
any help?
I guess this is a problem with the access rights.
If the file cache.lock is in the folder which is mentioned in the error message, you should check if it is in use by another process.
Even if you start Eclipse as Administrator, it may not start Glassfish as Administrator.
To fix the problem, you can move your Glassfish installation to a folder where you have write access without the Adminstrator account. Update the location of the Glassfish installation in Eclipse. This should make it work.
Check if cache.lock is being used/if it currently exists.
Check if glassfish is currently running.
I wrote a java servlet program but when i run it, It was showing the Exception java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
My code
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
conn = DriverManager.getConnection(url, "username", "pass");
I am using Oracle 10.2.0. I added also ojdbc14.jar and ojdbc14_g.jar.
When I give the below command to command line. I get Error: Main method not found in class oracle.jdbc.driver.OracleDriver
I added also ojdbc14.jar and ojdbc14_g.jar
When adding third party libraries to your application, you must be sure they are in the Build Path of your application. In case of web applications, every third party library must be inside the WEB-INF/lib of the application so when deployed to the server (Tomcat, JBoss, etc.) they can be recognized and loaded when running your application.
Steps to rectify (if running from command prompt)
Step 1- Copy the ojdbc6 jar file from
C:\oraclexe\app\oracle\product\11.2.0\server\jdbc\lib (Note- this path may differ as per the installation).
Step 2- Paste the ojdbc6 jar file in the Location
C:\Program Files\Java\jre1.8.0_45\lib\ext (Note- this path may differ as per the installation).
Step 3- Now run the programme java -cp . . It should successfully run without any error.
Tomcat fails to start even if i remove all my applications from the WEBAPPS directory leaving everything just like after the OS installation.
The log (catalina.out) says:
Using CATALINA_BASE: /usr/share/tomcat5
Using CATALINA_HOME: /usr/share/tomcat5
Using CATALINA_TMPDIR: /usr/share/tomcat5/temp
Using JRE_HOME:
Created MBeanServer with ID: -dpv07y:fl4s82vl.0:hydrogenium.timberlinecolorado.com:1
java.lang.NoClassDefFoundError: org.apache.catalina.core.StandardService
at java.lang.Class.initializeClass(libgcj.so.7rh)
at java.lang.Class.initializeClass(libgcj.so.7rh)
at java.lang.Class.initializeClass(libgcj.so.7rh)
at java.lang.Class.newInstance(libgcj.so.7rh)
at org.apache.catalina.startup.Bootstrap.init(bootstrap.jar.so)
at org.apache.catalina.startup.Bootstrap.main(bootstrap.jar.so)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.modeler.Registry not found in org.apache.catalina.loader.StandardClassLoader{urls=[file:/var/lib/tomcat5/server/classes/,file:/usr/share/java/tomcat5/catalina-cluster-5.5.23.jar,file:/usr/share/java/tomcat5/catalina-storeconfig-5.5.23.jar,file:/usr/share/java/tomcat5/catalina-optional-5.5.23.jar,file:/usr/share/java/tomcat5/tomcat-coyote-5.5.23.jar,file:/usr/share/java/tomcat5/tomcat-jkstatus-ant-5.5.23.jar,file:/usr/share/java/tomcat5/tomcat-ajp-5.5.23.jar,file:/usr/share/java/tomcat5/servlets-default-5.5.23.jar,file:/usr/share/java/tomcat5/servlets-invoker-5.5.23.jar,file:/usr/share/java/tomcat5/catalina-ant-jmx-5.5.23.jar,file:/usr/share/java/tomcat5/tomcat-http-5.5.23.jar,file:/usr/share/java/tomcat5/tomcat-util-5.5.23.jar,file:/usr/share/java/tomcat5/tomcat-apr-5.5.23.jar,file:/usr/share/eclipse/plugins/org.eclipse.jdt.core_3.2.1.v_677_R32x.jar,file:/usr/share/java/tomcat5/servlets-webdav-5.5.23.jar,file:/usr/share/java/tomcat5/catalina-5.5.23.jar], parent=org.apache.catalina.loader.StandardClassLoader{urls=[file:/var/lib/tomcat5/common/classes/,file:/var/lib/tomcat5/common/i18n/tomcat-i18n-ja.jar,file:/var/lib/tomcat5/common/i18n/tomcat-i18n-fr.jar,file:/var/lib/tomcat5/common/i18n/tomcat-i18n-en.jar,file:/var/lib/tomcat5/common/i18n/tomcat-i18n-es.jar,file:/usr/share/java/tomcat5/naming-resources-5.5.23.jar,file:/usr/share/eclipse/plugins/org.eclipse.jdt.core_3.2.1.v_677_R32x.jar,file:/usr/share/java/tomcat5/naming-factory-5.5.23.jar], parent=gnu.gcj.runtime.SystemClassLoader{urls=[file:/usr/lib/jvm/java/lib/tools.jar,file:/usr/share/tomcat5/bin/bootstrap.jar,file:/usr/share/tomcat5/bin/commons-logging-api.jar,file:/usr/share/java/mx4j/mx4j-impl.jar,file:/usr/share/java/mx4j/mx4j-jmx.jar], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}}}
at java.net.URLClassLoader.findClass(libgcj.so.7rh)
at java.lang.ClassLoader.loadClass(libgcj.so.7rh)
at java.lang.ClassLoader.loadClass(libgcj.so.7rh)
at java.lang.Class.initializeClass(libgcj.so.7rh)
...5 more
Seems like you've implemented a JMX service and tried to install it on your server.xml file but forgot to add the apache commons modeler jar to the server/lib directory (therefore the ClassNotFoundException for org.apache.commons.modeler.Registry). Check your server.xml file for anything you might have added, and try to add the proper jar file to your server classpath.
This screams class path issue, to me. Where exactly is your tomcat installed? (Give us command line printouts of where the home directory is.) Also, how are you starting it?
Seems like you need to have the jar for commons-modeler into $CATALINA_HOME/common/lib. You get the same kind of error when trying to setup JDBC datasources if you didn't put the driver's jar file into tomcat's server classpath.
Check your JAVA_HOME/JRE_HOME setting. You might want to use a different JVM rather than the one that is installed with the OS