Re: [iPlanet-JATO] Re: Translation hangs tool (retitled Custom Superclasses and warning T008)

Question

Sonal,
I believe that you are misinterpreting the documentation.
I understand that PgCommon has to extend ViewBeanBase. I tried to
make the following changes in PgCommon and compiled it. Then I ran
the extraction which threw up the following error:
I believe that you are confusing extraction issues with translation issues.
The warning message that indicates the need for a class mapping strategy to
address custom superclasses in the original project is a TRANSLATION time
warning.
T008 No mapping found for [<ndClassType>]
Falling back to [Object]. Please add entry for [<ndClassType>] to
class mapping file, restart the toolbox and re-run the translation.
As such, the remedy for this warning is detailed in the documentation under
the heading
Extraction/Translation Error & Warning Messages
3.3 Notes on MigrationClassMappings.properties
It sounds to me that you have misinterpreted the instructions and have
attempted to modify the original PgCommon declaration, and then re-extract.
This is incorrect. This implies that you see this as an extraction tool
situation, which it is not. This is a translation tool consideration, and as
such does not require any adjustment of the original NetDynamics' object. So
please, return to the original PgCommon declaration, and recompile. Then run
the extraction tool. Then run the translation tool, and make note of the
translation tool warnings and deal with them.
As indicated in the documentation (although perhaps not clearly enough), the
solution to warning T008 is not to make your original PgCommon extend
ViewBeanBase, but rather to adjust the MigrationClassMappings.properties so
that the TRANSLATION tool will take your class mappings into account when it
translates the ND objects into JATO objects.
Specifically, if you add the following entry into the
MigrationClassMappings.properties file:
PgCommon PgCommonViewBean
then the translation tool will cause all classes which previously extended
PgCommon to be translated into new classes which now extend
PgCommonViewBean.
Your final step is to adjust PgCommonViewBean's constructor. Note, we are
talking about PgCommonViewBean here (i.e. the output of the Translation
tool, not the original ND object).
Change it from this:
public PgCommonViewBean()
super(PAGE_NAME);
setDefaultDisplayURL(DEFAULT_DISPLAY_URL);
registerChildren();
initialize();
TO THIS
public PgCommonViewBean(String name)
// Adjust the constructor because this is a superclass
// of the other viewbeans. It is NOT a stand along page
// Therefore its constructor should be adjusted to pass the
// page name argument up to the ViewBeanBase class
super(name);
/* Delete the following lines, they are not needed if this is acting as a
superclass of other viewbeans.
setDefaultDisplayURL(DEFAULT_DISPLAY_URL);
registerChildren();
initialize();
----- Original Message -----
From: "Todd Fast" <toddwork@c...>
Sent: Wednesday, April 25, 2001 5:16 PM
Subject: Re: [iPlanet-JATO] Re: Translation hangs tool
Sonal--
Have you tried recompiling the entire application? It sounds as if theremay
be a problem with incompatible versions of PgCommon and PgReplaceCDSIDwhich
I assume extends it. Blow away all your project class files and recompile
in the ND Studio before trying again.
Also, make sure there are no .ser files hanging around in your project
directory.
Todd
----- Original Message -----
From: <ssingh@n...>
Sent: Wednesday, April 25, 2001 6:56 AM
Subject: [iPlanet-JATO] Re: Translation hangs tool
Todd/Charles,
Thans for all the help.
The client has a small application, in which all pages extend from
PgCommon. PgCommon extends CSpPage. I read through the "Notes on
MigrationClassMappings.properties" file in iMT1.1.1 documentation.
I understand that PgCommon has to extend ViewBeanBase. I tried to
make the following changes in PgCommon and compiled it. Then I ran
the extraction which threw up the following error:
java.lang.VerifyError: (class: prHRAdminDE/PgReplaceCDSID, method:
stLinkToHome_onBeforeDisplayEvent signature:
(Lspider/event/CSpDisplayEvent;)I) Incompatible object argument for
function call
at java.lang.ClassLoader.resolveClass0(Native Method)
at java.lang.ClassLoader.resolveClass(ClassLoader.java:545)
at spider.util.CSpClassLoader.loadClass(CSpClassLoader.java,
Compiled Code)
at spider.util.CSpClassLoader.loadClassWithPackage
(CSpClassLoader.java:291)
at spider.util.CSpClassLoader.loadClassWithPackage
(CSpClassLoader.java:217)
at spider.util.CSpClassName.instantiate(CSpClassName.java:180)
at spider.intrp.CSpIntrpModel.createModel
(CSpIntrpModel.java:945)
at spider.intrp.CSpIntrpModel.createNodeObject
(CSpIntrpModel.java:282)
at spider.intrp.CSpIntrpModel.open(CSpIntrpModel.java:500)
at spider.CSpProject.readPostV40ChildObjects(CSpProject.java,
Compiled Code)
at spider.CSpProject.readObject(CSpProject.java:806)
at spider.intrp.CSpIntrpModel.createNodeObject
(CSpIntrpModel.java:293)
at spider.intrp.CSpIntrpModel.open(CSpIntrpModel.java:500)
at spider.intrp.CSpIntrpModel.open(CSpIntrpModel.java:479)
at spider.CSpider.instantiateFirstProjectInstance
(CSpider.java:6404)
at spider.CSpider.createAndSetNewProjectInstance
(CSpider.java:6187)
at spider.CSpider.allocateProjectUserContext
(CSpider.java:5471)
at spider.CSpider.preloadProjects(CSpider.java, Compiled Code)
at spider.CSpider.initialize(CSpider.java:542)
at com.iplanet.moko.netdyn.extract.PseudoCP.createProjects
(PseudoCP.java:136)
at com.iplanet.moko.netdyn.extract.PseudoCP.initialize
(PseudoCP.java:106)
at com.iplanet.moko.netdyn.extract.PseudoCP.<init>
(PseudoCP.java, Compiled Code)
at com.iplanet.moko.netdyn.tools.ExtractTool.invoke
(ExtractTool.java, Compiled Code)
at com.iplanet.moko.tools.gui.ToolInvocationThread.run
(ToolInvocationThread.java, Compiled Code)
===================================
Any more documentation availbale on how to migrate a common base
page? I beleive that it would be a fairly common issue in NetD
migrations.
===================================
New PgCommon
public class PgCommon extends ViewBeanBase implements ViewBean
//]]SPIDER_CLASS END
//[[SPIDER_EVENTS BEGIN
public static boolean DEBUG = true;
//[[SPIDER_EVENT<this_onAfterInitEvent>
public PgCommon()
super("PgCommon");
public void this_onAfterInitEvent(CSpInitEvent event){
Properties props =
HRAdminProperties.getInstance();
DEBUG = (props.getProperty
("hronlineadmin.debug").equals("TRUE"))?true:false;
//CSpLog.setSendErrorsToHtml(false);
//return (PROCEED);
//]]SPIDER_EVENT<this_onAfterInitEvent>
//]]SPIDER_EVENTS END

Answer 1