SOA 12c DBAdapter : Exception occured during invocation of JCA binding: Could not create/access the TopLink Session.

Recently created a new DataSource and adapter JNDI and when trying to test I got the below error:

Exception occurred when binding was invoked. Exception occurred during invocation of JCA binding: “JCA Binding execute of Reference operation ‘merge’ failed due to: Could not create/access the TopLink Session. This session is used to connect to the datastore. Caused by Exception [EclipseLink-7060] (Eclipse Persistence Services – 2.3.1.v20111018-r10243): org.eclipse.persistence.exceptions.ValidationException Exception Description: Cannot acquire data source [jdbc/Demo_DB]. Internal Exception: javax.naming.NameNotFoundException: Unable to resolve ‘jdbc.Demo_DB’. Resolved ‘jdbc’; remaining name ‘DemoDB’. You may need to configure the connection settings in the deployment descriptor (i.e. DbAdapter.rar#META-INF/weblogic-ra.xml) and restart the server. This exception is considered not retriable, likely due to a modelling mistake. “. The invoked JCA adapter raised a resource exception. Please examine the above error message carefully to determine a resolution.


The solution was simple. Either you can;

1. Cross verify the DataSource name in the adapter JNDI connection pool and make sure to update the DBAdapter.

or

2. Check if your DataSource is targeted to the soa_server. If not, target it.


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SOA 12c : Error JTA transaction is not in active state/The action "update action" cannot be performed on the instance

Today while I was testing a service I was seeing errors intermittently on EM instances.
My service was invoking a sync partner link and even with successful response the error was  happening.

Well turns out the error was due to the default JTA setting to 30 seconds.

Error:
JTA transaction is not in active state.
bpel engine can not execute activities without an active transaction. please debug the invoked subsystem on why the transaction  is not in active status. the bpel instance id is "448".
The reason was The execution of this instance "448" for process "App/ProjectBPEL!1.0*soa_3cd6576b-91bd-4992-afaf-3620d3509180" is supposed to be in an active jta transaction, the current transaction status is "MARKED_ROLLBACK" .
Consult the system administrator regarding this error.

or

Cannot access instance.
The action "update action" cannot be performed on the instance "9579" because of its current state ("unknown").
The current instance state did not allow the requested action to be performed.
Consult the product documentation for a list of all the permissible actions that can be performed on an instance when it is in the "unknown" state.

Solution:
1. Login to WebLogic console.
2. Navigate to JTA settings
3. Increase your JTA to a higher value.

JTA values can depend on the processing time that your partner may take in a sync exchange set globally.

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SOA 12c : Change BPEL Preference Property at Runtime on EM

Here is what you can do if you want to update your bpel.preference.variable value on 12c Enterprise Manager.

Example, if you have set variable as below in your composite.xml:

<property name="bpel.preference.Email">test@test.com</property>

  

1. Login to EM [http://hostname:port/em]

2. On Left Navigator, navigate to WebLogic Domain > soa_domain

 

 

3. Right-click and select 'System MBean Browser'

4. On next page, left pane scroll at the bottom and expand oracle.soa.config

5. Navigate under that to Server: soa_server > SCAComposite > Your composite[version]

6. Expand and select SCAComposite.SCAComponent > Click on your component

7. On the left pane, under Attributes column click on Properties

8. Under Key expand Element for Email and change the contents of value field.

9. Apply.

The new values should now reflect.

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SOA 12c : Clear MDS cache

Sometimes when we have made changes to the MDS the changes do not reflect. Even when we redeploy the composite its the same.
The below action helps other than restarting the server.

1. Start System MBean Browser; In Domain, pull down the WebLogic Domain menu and choose 'System MBean Browser'

2. Browse for the Application Defined Beans:
3. Expand it and navigate to oracle.mds.lcm, choose server (AdminServer or SOAServer1)




4. Navigate to the node Application em (AdminServer) or soa-infra (SOAServer) -> MDSAppRuntime > MDSAppRuntime. Click on the tab Operations, and then on clearCache
5. Click on Invoke

This should help in reflecting the MDS changes.

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SOA 12c SOAPUI : How to add OWSM WS-Security Username Token

Lately I was trying to test a service that was using an OWSM Username Service Token policy using SOAPUI and was getting the below error:

<env:Fault xmlns:ns0="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
         <faultcode>ns0:InvalidSecurity</faultcode>
         <faultstring>InvalidSecurity : error in processing the WS-Security security header</faultstring>
         <faultactor/>
</env:Fault>


I had added Basic Authorization with the required credentials.

Well the reason was quite simple.

I had not added the username token to the SOAP Header. Hence it was able to validate the security.

Here is what you must do:

Let the Basic Authorization be as is.
1. Right-click on your request message in SOAPUI
2. Select 'Add WSS Username Token'



3. Select Password Text and click on OK.



You can see that the Token is added to the Header




4. Test


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OSB 12c FileAdapter : Physical/Logical Output Directory has invalid value BINDING.JCA-11043

Once trying to deploy a OSB FileAdapter service and activating the changes I received the below Error:

Error(s) found in module 'FileAdapterService'.
Invalid JCA transport endpoint configuration, exception: BINDING.JCA-11043
Invalid Interaction parameter.
Invalid Interaction parameter.
Interaction parameter Physical/Logical Output Directory has invalid value {/placeholder}.
Please correct the value of the interaction parameter and redeploy the process.
 at FileAdapter.biz

Cause -
The issue is typically caused by a invalid directory definition in the business service.
Means, the file path that you have defined in the adapter is invalid.

Solution -
Correct the file path definition, check if the path is valid and has the right permissions.


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SOA 12c BPEL : Invoke Partner Service using SOAP Header

If you have to invoke a partner service which requires username and password to be populated in the SOAP Header custom elements you can follow the below steps as I did.

Before we come to the BPEL part, validate the custom elements that should be part of the schema definition and WSDL binding:

1. Your target service schema will have a header element like below:

<schema elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.w3.org/2001/XMLSchema" xmlns="http://www.w3.org/2001/XMLSchema">
<element name="Header">
     <complexType>
        <sequence>
            <element name="username" type="string"/>
            <element name="password" type="string"/>
         </sequence>
     </complexType>
</element>
</schema>

2. In the target service WSDL below declaration should be made

a. Message: (check your namespace and edit accordingly below)

<message name="InputHeaderMessage">
    <part name="header" element="tns:header"/>
</message>

b. Binding:

<binding name="HeaderTest" type="tns:HeaderTest">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/>
<operation name="process">
<soap:operation style=document soapAction="http://xmlns.oracle.com/HeaderTestApp/HeaderTestBPEL"/>
  <input>
    <soap:header message="tns:InputHeaderMessage" part="header" use="literal"/>
    <soap:body parts="payload" use="literal"/>
  </input>
</operation>
</binding>

3. Create 2 preference variables in composite.xml

    <property name="bpel.preference.username">test</property>
    <property name="bpel.preference.password">test1</property>

4. Now coming to BPEL, we will first create a variable varHeader of type Element and select the header element from the schema.

5. Add Assign activity in BPEL and assign the preference value to the variables username and password.

    ora:getPreference("username") - $varHeader.username
    ora:getPreference("password") - $varHeader.password

6. Add Invoke activity below, connect to the target partnerLink.
7. Open the invoke activity, click on Header tab and select the variable varHeader

          

8. Save, Deploy and Test.


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SOA 12c DBAdapter : JCA Binding execute of Reference operation 'insert' failed Caused by java.sql.SQLException: Attempt to set connection harvestable to false but the connection is already closed.

Recently when trying to test a DBAdapter service I came across this issue. You can follow the same steps as I did to resolve the problem.

Error:
com.oracle.bpel.client.BPELFault: faultName:
{{http://schemas.oracle.com/bpel/extension}remoteFault} messageType:
{{http://schemas.oracle.com/bpel/extension}RuntimeFaultMessage} parts: {{ summary=Exception occurred when binding was invoked.
 Exception occurred during invocation of JCA binding: "JCA Binding execute of Reference operation 'insert' failed due to:
 DBWriteInteractionSpec Execute Failed Exception. insert failed. Descriptor name: [EmpTemp.Emp_Temp]
Caused by java.sql.SQLException: Attempt to set connection harvestable to false but the connection is already closed.

Actual Reason:
DS that you are using is stale.
Means, lately the DBMS that you are connecting to, was restarted or refreshed and WebLogic Server lost the connection to it.

Why this happened?
You have not yet configured the pool to test connections, so once the connection is dead,
WLS still knows nothing about that, and will save and serve up dead connections until the pool is rebuilt.

Do one or both of the below things:

Solution: Enable test-connection-on-reserve (so that is does not happen again).
Or
Implement Work-around: Reset the datasource from the console after the DBMS is back up.

When you reset the database connections in a JDBC data source, WebLogic Server closes and recreates all available database connections in the pool of connections in the data source.

To reset database connections in a JDBC data source:

1. Navigate to the data source that you want to reset:
2. Select the Control tab.
3. On the Control page, select the instances of the data source that you want to reset.
    Date source instances are listed by the server on which they are deployed.
4. Click the Reset button.
5. Click Yes to confirm the action.

     Results are displayed at the top of the page, and the Status of Last Action is changed to SUCCESS for each data source that you selected to reset.


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SOA 12c JDeveloper : Configure Microsoft SQL Server Driver for DBAdapter

Here is what you should do if you want to create a database connection to Microsoft SQL Server.

Firstly, obtain the library for the SQLServer JDBC driver library bundle.
You can use the below link.
http://www.microsoft.com/en-us/download/details.aspx?id=21599

Unzip the archive.
Inside you will find sqljdbc4.jar, which will be the library we will use.

1. In JDeveloper, navigate to Tools > Preferences
2. Under Preferences, left margin, expand Database
3. Select 'JDBC Driver Options'



4. Click on +
5. Below, browse the Library
6. On 'Select Library', click on New
7. Enter library name, sqljdbc4.jar [no-spaces] and click on 'Add Entry'
8. Locate the library that we downloaded and extracted; sqljdbc4.jar
9. Click on OK, again OK and come back to Preferences page
10. Enter the driver class as 'com.microsoft.sqlserver.jdbc.SQLServerDriver'
11. Click on OK.

12. Now go to Resource palette,  and create a New Database connection.
13. Select 'Connection Type' as SQLServer
14. Provide all the connection details of the SQLServer you want to connect to
15. Test your connection.
16. Click OK and you are done.

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