I am trying to create a servlet and that servlet will take the process id as an

Karthik over 8 years ago

I am trying to create a servlet and that servlet will take the process id as an input and redirect the user who is accessing the servlet to open a specific task of the given process id. However, it gives me 404 and writes the below log

Caused by: java.lang.ClassCastException: com.karthik.integration.OpenHomePage cannot be cast to javax.servlet.http.HttpServlet
at com.atlassian.plugin.servlet.descriptors.ServletModuleDescriptor.getModule(ServletModuleDescriptor.java:50)
at com.atlassian.plugin.servlet.DelegatingPluginServlet.<init>(DelegatingPluginServlet.java:33)
at com.atlassian.plugin.servlet.DefaultServletModuleManager$LazyLoadedServletReference.create(DefaultServletModuleManager.java:461)
at com.atlassian.plugin.servlet.DefaultServletModuleManager$LazyLoadedServletReference.create(DefaultServletModuleManager.java:447)
at com.atlassian.util.concurrent.LazyReference$Sync.run(LazyReference.java:326)
at com....

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0 Karthik over 8 years ago

...atlassian.util.concurrent.LazyReference.getInterruptibly(LazyReference.java:146)
... 120 more
2016-03-02 02:41:37,164 [ajp-/0.0.0.0:8009-4] ERROR com.appiancorp.ap2.PortalResponse - Error: 404 Message: Could not find servlet for: /suite/plugins/servlet/OpenHomePage

My class extends HttpServlet though I get the above said exception.

public class OpenCDDHomePage extends HttpServlet {

          private static final long serialVersionUID = 1L;

          /**
           *
           */
Please help me in resolving this
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0 Eduardo Fuentes
Appian Employee
over 8 years ago

Can you attach your plug-in? (feel free to remove any logic you don't want to share)
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0 Karthik over 8 years ago

@Eduardo, here is the plugin. I hope it will help you in debugging.
com.karthik.crm.plugins.crmplugins-1.0.8.jar
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0 Eduardo Fuentes
Appian Employee
over 8 years ago

When do you get that error (ClassCastException)? When deploying? or when invoking? I was able to deploy it.
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0 Karthik over 8 years ago

It was successfully deployed at my server too, however it gave classcast exception during invocation. I could fix it by loading the jars at lib-compile instead of lib. Thanks!
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0 Karthik over 8 years ago

I am trying to get the active tasks of an instance using the below code. There is an active task at a process which is nested two levels from the parent process. And the below code is not capturing the active task that I am looking for. How can I get the tasks of a subprocess?

TaskSummary[] tss = (TaskSummary[]) pes.getCurrentTasksForProcess(
                                                  cddProcessId,
                                                  ProcessExecutionService.UNATTENDED_AND_ATTENDED_TASKS, 0,
                                                  Constants.COUNT_ALL, TaskSummary.SORT_BY_ASSIGNED_TIME,
                                                  Constants.SORT_ORDER_DESCENDING).getResults();
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0 Eduardo Fuentes
Appian Employee
over 8 years ago

Glad it's working now. You can continue the conversation about your code in the other post forum.appian.com/.../e-198760
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0 tejar4065 over 1 year ago

any solution for the above issue
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0 atonal3106 over 1 year ago

The following code describes the steps required to create a Servlet to process a request.

Class Name: src/main/java/com/oracle/jdbc/samples/web/WebController.java

Github Location: WebController.java

Description: This is the main servlet that controls all the flows of the application. For every new functionality of the application, we will be adding the code to handle the new requests and responses in doPost() and processResponse() respectively.

Steps to be Performed:

6. Create a servlet WebController.java and reportError() method

7. Create a method processRequest() – This method processes both GET and POST HTTP requests.

8. Create a method doGet() – Add details to get the employee details from the database and show the results in JSON. JSON will be the output format of the results that is shown on the HTML.

9. Create a method getServletInfo() – To display some generic information about the servlet.

10. Create a logger to log exceptions and other error messages.
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0 tejar4065 over 1 year ago in reply to atonal3106

any example which u developed
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