Dynamic Plug-in Java Version

[frank.li]

Hi,

I met the UrlOsgiClassLoader.java:212 problem again.

I would like to know if I build the dynamic plug-in using Java 1.7 + gradlew 1.8, can  I deploy it on Java 1.8 version + tomcat 8 dotCMS?
I have this question because the build can be deployed on Java 1.7 + tomcat 8 environment, but not java 1.8 + tomcat 8


Here is the execption:
 Error injecting context for overriding
java.lang.NullPointerException
    at com.dotmarketing.osgi.UrlOsgiClassLoader.reload(UrlOsgiClassLoader.java:212)
    at com.dotmarketing.osgi.UrlOsgiClassLoader.reload(UrlOsgiClassLoader.java:97)
    at com.dotmarketing.osgi.GenericBundleActivator.injectContext(GenericBundleActivator.java:293)
    at com.dotmarketing.osgi.GenericBundleActivator.injectContext(GenericBundleActivator.java:250)
    at com.dotmarketing.osgi.GenericBundleActivator.publishBundleServices(GenericBundleActivator.java:133)
    at com.dotmarketing.osgi.cookie.Activator.start(Activator.java:14)
    at com.dotcms.repackage.org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:645)
    at com.dotcms.repackage.org.apache.felix.framework.Felix.activateBundle(Felix.java:2146)
    at com.dotcms.repackage.org.apache.felix.framework.Felix.startBundle(Felix.java:2064)
    at com.dotcms.repackage.org.apache.felix.framework.BundleImpl.start(BundleImpl.java:955)
    at com.dotcms.repackage.org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:1175)
    at com.dotcms.repackage.org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:1153)
    at com.dotcms.repackage.org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:458)
    at com.dotcms.repackage.org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:263)
    at com.dotcms.repackage.org.apache.felix.framework.Felix.activateBundle(Felix.java:2196)
    at com.dotcms.repackage.org.apache.felix.framework.Felix.startBundle(Felix.java:2064)
    at com.dotcms.repackage.org.apache.felix.framework.BundleImpl.start(BundleImpl.java:955)
    at com.dotcms.repackage.org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:1175)
    at com.dotcms.repackage.org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:1153)
    at com.dotcms.repackage.org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:458)
    at com.dotcms.repackage.org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:263)

[Jason Tesser]

I have used it on Java 8 but maybe something about your java 8 environment. 

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[Frank]

Thanks Jason,

I found some clues, but problem still there.

if I comment this line
publishBundleServices(context);
in the following class file, it will be deployed successfully, but override
does not work.
this only happened in java 1.8 + tomcat 8, not java 1.7 + tomcat 8(comment
or not, both will work).

hope someone can give me a further instruction.

Thanks a lot.


public class Activator extends GenericBundleActivator {

@SuppressWarnings ("unchecked")
public void start ( BundleContext context ) throws Exception {
//Initializing services...
initializeServices( context );
publishBundleServices(context);
}

public void stop ( BundleContext context ) throws Exception {
unpublishBundleServices();
}

}



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[frank.li]

On Tuesday, October 6, 2015 at 8:21:35 PM UTC-4, frank.li wrote:

Thanks Jason,

  Oh: this is related to class override.
 

[Falzone, Chris]

Well you cannot compile the classes and create jar in 1.7 jdk and then deploy it to a server running against 1.8 java.  That would certainly cause issues.  Have you tried compiling against 1.8 and then deploying?  

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[Jason Tesser]

That could be it Chris but in his case I think it has to do with his environment and the JDK instrumentation 

[frank.li]

Hi Chris,

Thank you for your reply.
I have installed same jdk vesion which is runing on dotCMS server ("1.8.0_60").
I ran "gradlew jar", deployed the jar file, problem still there(same error message).

do you have any other idea?
Thanks again.

Frank

[frank.li]

Hi Chris,

I have upgrade my build environment and dotCMS servers to Java 1.8.

There are two dotCMS servers.
one is Java1.8 + Tocmat 8 + dotCMS 3.2.2, the dynamic plugin file can be deployed and run properly on this.
but the same file can not be deployed and run on the server with Java1.8 + Tocmat 8 + dotCMS 3.2.4

Tomorrow, I will upgrade 3.2.2 to 3.2.4 and do another test.

Frank

[pawankum...@gmail.com]

Hi Chris,
             I want to call the post method of my dynamic plugin via following client side view:
    

<form   action="/app/spring/examplecontroller" method='post'>
                                <div class='new-row'>
                                    <select class='form-control' name="hotelName">
                                        <option>Select Your Hotel</option>
                                        <option>The Leela Palace,Bangalore</option>
                                    </select>
                                </div>
                                <div class='new-row'>
                                    <div class='in-bl-2'>
                                        <input type='text' class='form-control chk-in' placeholder='25-09-2015' name="chkInDate"/>
                                    </div>
                                    <div class='in-bl-2'>
                                        <input type='text' class='form-control chk-out' placeholder='27-09-2015' name="chkInOutDate" />
                                    </div>
                                </div>
                                <div class='new-row'>
                                    <div class='in-bl-3'>
                                        <select class='form-control' name="rooms">
                                            <option>Rooms</option>
                                            <option>1</option>
                                        </select>
                                    </div>
                                    <div class='in-bl-3'>
                                        <select class='form-control' name="adults">
                                            <option>Adults</option>
                                            <option>2</option>
                                        </select>
                                    </div>
                                    <div class='in-bl-3'>
                                        <select class='form-control' name="childrens">
                                            <option>Children</option>
                                             <option>1</option>
                                        </select>
                                    </div>
                                </div>
                                <div class='new-row'>
                                    <input type='submit' class='btn' value='Check Availability' />
                                </div>
                            </form>

   I uploaded my dynamic plugin, it is working correct but the problem is , when I call the POST method , it is being called along with the call GET method 3 times in total repeatative 4 times the request is going how to control that method , here is my controller and giving the messages regarding GET method,
package com.dotmarketing.osgi.spring;

import com.dotmarketing.util.Logger;

import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;

/**
 * Created by Jonathan Gamba
 * Date: 6/18/12
 */

@EnableWebMvc
@Configuration
@RequestMapping ("/examplecontroller")
@Controller
public class ExampleController {

    @RequestMapping(method = RequestMethod.GET, produces={"application/json","application/xml"}, consumes="text/html")
    public ModelAndView helloWorld() {
        Logger.info( this.getClass(), "Received request to hello" );
        String myMessage = "Hello World,GET Spring 3.1 and dotCMS!";
        // This will resolve to /application/spring/helloworld.dot, and put the String myMessage in the map with key "message"
        return new ModelAndView("helloworld", "msg", myMessage);
    }

 @RequestMapping(method = RequestMethod.POST,produces={"application/json","application/xml"}, consumes="text/html")
    public String helloWorldPost(Model model) {
        Logger.info( this.getClass(), "Received request  to hello1" );
        String myMessage = "Hello World,POST Spring 3.1 and dotCMS!1";
        // This will resolve to /application/spring/helloworld.dot, and put the String myMessage in the map with key "message"
         model.addAttribute("msg",myMessage);
        return "helloworld";
    }


    @RequestMapping(value = "/{userName}", method = RequestMethod.GET)
    public String getHello(@PathVariable String userName, Model model) {

        Logger.info( this.getClass(), "Received request to hello user" );

        // set the message
        String aMessage = (userName != null)
                ? "Hello EDIT " + userName + ", welcome to Spring  3.1 and dotCMS!  "
                : "Hello Total Stranger, welcome to Spring  3.1 and dotCMS!  ";

        // Attach message to the Model
        model.addAttribute("message", aMessage);

        // This will resolve to /application/spring/helloworld.dot
        return "helloworld";
    }

}


  here is the log file generated;-
2015-10-08 11:47:08,741 INFO  com.dotmarketing.business.DotGuavaCacheAdministratorImpl - ***     Building Cache : csscache, size:100, toDisk:true,Concurrency:32
2015-10-08 11:56:43,578 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request  to hello1
2015-10-08 11:56:43,686 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 11:56:43,900 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 11:56:43,900 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 11:59:00,662 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request  to hello1
2015-10-08 11:59:00,736 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 11:59:00,957 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 11:59:00,960 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 12:00:41,037 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request  to hello1
2015-10-08 12:00:41,114 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 12:00:41,410 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 12:00:41,411 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 12:01:03,205 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request  to hello1
2015-10-08 12:01:03,290 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 12:01:03,500 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 12:01:03,500 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 12:01:41,897 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request  to hello1
2015-10-08 12:01:41,969 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 12:01:42,145 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 12:01:42,145 INFO  com.dotmarketing.osgi.spring.ExampleController - Received request to hello
2015-10-08 12:09:44,543 INFO  com.dotmarketing.business.ajax.PermissionAjax - ##=> permissionMap: {inode=5e6aaea0-60f7-4c07-82e9-34cdcac67972, roleId=654b0931-1027-41f7-ad4d-173115ed8ec1, permission=15, id=12490, type=individual, isBitPermission=true}
2015-10-08 12:09:44,543 INFO  com.dotmarketing.business.ajax.PermissionAjax - ##=> permissionMap: {inode=5e6aaea0-60f7-4c07-82e9-34cdcac67972, roleId=999cd6bf-5cef-4729-8543-696086143884, permission=1, id=12442, type=individual, isBitPermission=true}

[Falzone, Chris]

The reason you see three times is because you are doing it in the dotCMS Page Editor, logged in.  In the page editor it will render every page 3 times, once for each view of the page (Live/Preview/Edit).  So that is totally expected.  I am not familiar enough with sprint to know why it would also be calling your post and get methods each time you submit the form.  

[frank.li]

Thanks everybody.

I found the problem.
when I solved the "Tomcat – java.lang.OutOfMemoryError: PermGen space" issue, I put a new file "setenv.sh" in the "tomcat-8.0.18/bin" directory.
removed this file, dynamic plug-in would be Ok.

Frank