Hi Mark, Many Thanks for your response. I was able to resolve this issue by writing the below code just before JNDI Look Up:
Thread l_thread = Thread.currentThread(); l_thread.setContextClassLoader(this.getClass().getClassLoader()); initialContext = new InitialContext(); .... I have a questions based on the discussions on the thread link you provided: If this is something to do with ForkJoin Pool, then why it is happening only in Tomcat why not in other application servers as I mentioned in my initial post. Regards, Priyam On Sat, Mar 17, 2018 at 2:22 AM, Mark Thomas <ma...@apache.org> wrote: > On 16/03/18 12:06, Priyam Srivastava wrote: > > I have a scenario where we have to run some random number of independent > > tasks to load data from DB. So I am using Java's fork Join framework to > > create those task and then invoke them. > > See: > https://bz.apache.org/bugzilla/show_bug.cgi?id=60620 and the various > threads linked from there. > > Mark > > > > > > Each task opens its own connection using datasource and closes it. > > > > But in Tomcat, I am getting below error at line: > > > > initialContext = new InitialContext(); > > > > javax.naming.NoInitialContextException: Cannot instantiate class: > > org.apache.naming.java.javaURLContextFactory > > at javax.naming.spi.NamingManager.getInitialContext(Unknown Source) > > ~[?:1.8.0_161] > > at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source) > > ~[?:1.8.0_161] > > at javax.naming.InitialContext.init(Unknown Source) ~[?:1.8.0_161] > > at javax.naming.InitialContext.<init>(Unknown Source) ~[?:1.8.0_161] > > at com.dummy.test.TestClass.compute(TestClass.java:71) [classes/:?] > > at java.util.concurrent.RecursiveAction.exec(Unknown Source) > [?:1.8.0_161] > > at java.util.concurrent.ForkJoinTask.doExec(Unknown Source) > [?:1.8.0_161] > > at java.util.concurrent.ForkJoinPool$WorkQueue.execLocalTasks(Unknown > > Source) [?:1.8.0_161] > > at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(Unknown Source) > > [?:1.8.0_161] > > at java.util.concurrent.ForkJoinPool.runWorker(Unknown Source) > [?:1.8.0_161] > > at java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source) > > [?:1.8.0_161] > > Caused by: java.lang.ClassNotFoundException: > > org.apache.naming.java.javaURLContextFactory > > > > This error seems to be coming only in Tomcat and when I run the same code > > in Wildfly/Glassfish or JBOSS EAP, everything works fine. > > > > On the other hand if I change my code and run these tasks using Thread > > instead of Fork Join framework, I don't face this issue in Tomcat. > > > > So why this error is coming in Tomcat only? > > > > Note: I am getting this error after deploying in Tomcat and hitting app > URL > > from Postman. The so called missing class is already there in > > jar catalina.jar present inside <Tomcat_Home>/lib > > > > Environment Details: > > > > Java Version: 1.8 > > Tomcat Version: 8.5, 9.0.6 > > OS: Windows 10 Pro 64 bit > > Database: Oracle 11g and MySQL 5.7 > > > > I have uploaded a dummy code to simulate this issue in Git. Please refer > to > > the readme.txt for full details there. > > > > Git URL: > > https://github.com/wambling/my-project.git > > > > Regards, > > Priyam > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
