Intermittent bug: Business Components from Tables wizard exception

Hi JDev team
Just to flag an exception I periodically get in JDev 11g TP with the Business Components from Tables wizard, once I've pressed Finish in the wizard:
java.lang.NullPointerException
     at oracle.jbo.dt.ui.pkg.PKEntityThread.createRelatedViewLinks(PKEntityThread.java:1085)
     at oracle.jbo.dt.ui.pkg.PKEntityThread.createTableViews(PKEntityThread.java:966)
     at oracle.jbo.dt.ui.pkg.PKEntityThread.createObjects(PKEntityThread.java:424)
     at oracle.jbo.dt.jdevx.ui.pkg.XPKComponentWizardEntityThread.createObjects(XPKComponentWizard.java:454)
     at oracle.jbo.dt.ui.pkg.PKEntityThread.run(PKEntityThread.java:396)It is raised when the dialog displays showing the work JDev is doing after completing the wizard to create my business components.
I'm not able to consistently reproduce this issue, though I've encountered it several times. Don't quote me, but it appears to happen the first time I use the wizard in a new JDev session, but is not reproducible again in the same session. However it doesn't always happen when I restart JDev and I'm sorry I can't be more precise.
Hopefully the exception trace will give you enough information to track this issue down.
Regards,
CM.

Hi Ric
Unfortunately not really, it's a basic schema we use to test new software. One unusual thing is a hierarchical fk on the same table. But as I said the exception doesn't always occur, but annoyingly does seem to occur when I'm demoing the 11g TP version to clients. I was just hoping the stack trace would help out.
I'll keep an eye on it and if I can work out why it's occurring I'll update this post.
Thanks for following this up.
Cheers,
CM.

Similar Messages

Error While Create Business Components From Tables Wizard -- need help asap

Hi , i have created a view and while create Business Components through wizard for that view i am getting following error.
ENTITY CREATION FAILED FOR THE FOLLOWING DATABASE OBJECT
NO PRIMARY KEY ATTRIBUTES AND DOES NOT SUPPORT ROWID . USE ENTITY WIZARD TO CREATE THE ENTITY OBJECT.
very urgent.
Regards
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thanks shay .
Jdeveloper version :: 10.1.3.1.0
view Syntax is :
SELECT
oh.order_number||'- ('||ol.line_number||'-'||ol.shipment_number||')' so_line,
oh.cust_po_number customer_po,
ol.flow_status_code status,
ol.shipping_method_code carrier,
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0 refer
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NO Links or Associations created with the "Business Components From Tables"

Hello,
I have a strange problem. I'm working on a Fusion Web Applicaiton. In the Model project, I try to create some Business Components from Tables with the help of the provided wizard.
I select one of my IDE Connections, and I choose two of my tables as Entity Objects (*PATIENTS* and COUNTRIES - more details about them bellow), and also as Updatable View Objects. For Read-Only View Objects I select some other tables, afterwards I choose to create a default Application Module, and I press Finish without creating a Business Diagram. Everything works perfectly except of the fact that the wizzard has created everything but the Links and the Associations between my tables.
To be more precise, COUNTRIES is a simple table, only two columns - ID and NAME, and PATIENTS has some columns like ID, NAME, ADDRESS, DATE_OF_ADMISSION, COUNTRY_ID, where COUNTRY_ID is a foreign key to the COUNTRIES table. Both columns, PATIENTS.COUNTRY_ID and COUNTRIES.ID are NUMBERs. I was expectig the wizard to create a Link and a Association for this foreign key constraint I have between this two tables.
On the other hand, following one of the tutorials I've found, *"Developing RIA Web Applications with Oracle ADF"*, I've noticed that when I was creating Business Components from Tables based on the HR schema, all the Links and Associations were created as they were expected. I've also tried to create the same Business Components from Tables in my own project, and all the Links and Associations were in place. Somehow, it's not working for my particular schema (the one that contains PATIENTS and COUNTRIES).
Is there something I do wrong? I've made sure that all the FK constraints are enabled, alive and kicking. From my point of view, the tables are working and behavig as they should, but I can't understand why that feature of automatically creating the Links and Associations works on the HR schema but not on mine.
Please help!
Bogdan.
PS: I am using Oracle JDeveloper Studio Edition Version 11.1.1.1.0, Oracle SQL Developer Version 1.5.5, and Oracle 10g Express Edition installed on localhost.

Hello John,
Of course I can post the scripts.
The schema name is "TEST". But you should know that there are some extra columns in the PATIENTS table, I've not mentioned before. As you can tell from the scripts bellow, the PATIENTS table has the following columns: ID (number), NAME (varchar2), COUNTRY (number), GENDER (number), ADMISSIONDATE (date), DIAGNOSTIC (number), FIRSTNAME (varchar2), SALARY (number). There are actually 3 FK constraints, I've only mentioned one for the simplifying the example. The first FK constraint is towards COUNTRIES, the second one is towards GENDERS, and the final one is towards DIAGNOSTICS. All this 3 tables have only two columns (ID as number, and GENDER as varchar2). I will post the scripts for all.
Here is the output of the Export DDL to Clipboard from SQL Developer for the COUNTRIES table:
CREATE TABLE "TEST"."COUNTRIES"
(     "ID" NUMBER NOT NULL ENABLE,
     "NAME" VARCHAR2(1000 BYTE) NOT NULL ENABLE,
     CONSTRAINT "COUNTRIES_UK1" UNIQUE ("NAME")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE,
     CONSTRAINT "COUNTRIES_PK" PRIMARY KEY ("ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE
) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."COUNTRIES_PK" ON "TEST"."COUNTRIES" ("ID")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."COUNTRIES_UK1" ON "TEST"."COUNTRIES" ("NAME")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE OR REPLACE TRIGGER "TEST"."COUNTRIES_TRG"
BEFORE INSERT ON COUNTRIES
FOR EACH ROW
BEGIN
SELECT COUNTRIES_SEQ.NEXTVAL INTO :NEW.ID FROM DUAL;
END;
ALTER TRIGGER "TEST"."COUNTRIES_TRG" ENABLE;
Here is the same output for the GENDERS table:
CREATE TABLE "TEST"."GENDERS"
(     "ID" NUMBER NOT NULL ENABLE,
     "NAME" VARCHAR2(50 BYTE) NOT NULL ENABLE,
     CONSTRAINT "GENDERS_PK" PRIMARY KEY ("ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE,
     CONSTRAINT "GENDERS_UK1" UNIQUE ("NAME")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE
) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."GENDERS_PK" ON "TEST"."GENDERS" ("ID")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."GENDERS_UK1" ON "TEST"."GENDERS" ("NAME")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE OR REPLACE TRIGGER "TEST"."GENDERS_TRG"
BEFORE INSERT ON GENDERS
FOR EACH ROW
BEGIN
SELECT GENDERS_SEQ.NEXTVAL INTO :NEW.ID FROM DUAL;
END;
ALTER TRIGGER "TEST"."GENDERS_TRG" ENABLE;
Here is the same output for the DIAGNOSTICS table:
CREATE TABLE "TEST"."DIAGNOSTICS"
(     "ID" NUMBER NOT NULL ENABLE,
     "NAME" VARCHAR2(1000 BYTE) NOT NULL ENABLE,
     CONSTRAINT "DIAGNOSTICS_PK" PRIMARY KEY ("ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE,
     CONSTRAINT "DIAGNOSTICS_UK1" UNIQUE ("NAME")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE
) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."DIAGNOSTICS_PK" ON "TEST"."DIAGNOSTICS" ("ID")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."DIAGNOSTICS_UK1" ON "TEST"."DIAGNOSTICS" ("NAME")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE OR REPLACE TRIGGER "TEST"."DIAGNOSTICS_TRG"
BEFORE INSERT ON DIAGNOSTICS
FOR EACH ROW
BEGIN
SELECT DIAGNOSTICS_SEQ.NEXTVAL INTO :NEW.ID FROM DUAL;
END;
ALTER TRIGGER "TEST"."DIAGNOSTICS_TRG" ENABLE;
And finally, here is the same output for the PATIENTS table:
CREATE TABLE "TEST"."PATIENTS"
(     "ID" NUMBER NOT NULL ENABLE,
     "NAME" VARCHAR2(1000 BYTE) NOT NULL ENABLE,
     "COUNTRY" NUMBER,
     "GENDER" NUMBER,
     "ADMISSIONDATE" DATE,
     "DIAGNOSTIC" NUMBER,
     "FIRSTNAME" VARCHAR2(1000 BYTE),
     "SALARY" NUMBER,
     CONSTRAINT "PATIENTS_PK" PRIMARY KEY ("ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE,
     CONSTRAINT "PATIENTS_UK1" UNIQUE ("NAME", "ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE,
     CONSTRAINT "PATIENTS_GENDERS_FK1" FOREIGN KEY ("GENDER")
     REFERENCES "TEST"."GENDERS" ("ID") ENABLE,
     CONSTRAINT "PATIENTS_DIAGNOSTICS_FK1" FOREIGN KEY ("DIAGNOSTIC")
     REFERENCES "TEST"."DIAGNOSTICS" ("ID") ENABLE,
     CONSTRAINT "PATIENTS_COUNTRIES_FK1" FOREIGN KEY ("COUNTRY")
     REFERENCES "TEST"."COUNTRIES" ("ID") ENABLE
) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE INDEX "TEST"."PATIENTS_INDEX1" ON "TEST"."PATIENTS" ("NAME")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."PATIENTS_PK" ON "TEST"."PATIENTS" ("ID")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."PATIENTS_UK1" ON "TEST"."PATIENTS" ("NAME", "ID")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE OR REPLACE TRIGGER "TEST"."PATIENTS_TRG"
BEFORE INSERT ON PATIENTS
FOR EACH ROW
BEGIN
SELECT PATIENTS_SEQ.NEXTVAL INTO :NEW.ID FROM DUAL;
END;
ALTER TRIGGER "TEST"."PATIENTS_TRG" ENABLE;
If a complete DB dump would be more helpful, please let me know. I am willing to provide any details.
Thanks for your support.

Business Components from Tables

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Edited by: nbo on Jun 3, 2012 2:53 AM

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Thanks

Hi,
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Hi,
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Environment Win XP 5.1.2600 Spanish; Jdeveloper 10132 with this table
SQL> desc linea;
Name                                      Null?    Type
CODPROV                             NOT NULL VARCHAR2(3)
CODLINE                               NOT NULL VARCHAR2(3)
LINEA                                    NOT NULL VARCHAR2(30)
CODSLINE                                             NUMBER(5)
ESTADO                                                 CHAR(1)Codprov,Codline is PK
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package model;
import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.NamedQuery;
@Entity
@NamedQuery(name = "Linea.findAll", query = "select o from Linea o")
public class Linea implements Serializable {
    public Linea() {
package model;
import java.io.Serializable;
public class LineaPK implements Serializable {
    public LineaPK() {
    public boolean equals(Object other) {
        if (other instanceof LineaPK) {
            final LineaPK otherLineaPK = (LineaPK) other;
            final boolean areEqual = true;
            return areEqual;
        return false;
    public int hashCode() {
        return super.hashCode();
}The same with Jdev 10133. any ideas?? the code for the wizard have not changed between 10132 and 10133?
Thanks
Alex Urzola R.

It works for hr.departments; indeed the wizards generates some other entities in my project but generates this empty class with that table "Lineas" (which have a composite key) and when i ask to generate several entities aside with this one, it skip the generation of some other entity also.
Note I'm Using JDK 1.5.0_08-b03 which is NOT part of neither 10132 nor 10133 dist.

Possible Bug: Business Components and packaging preferences

I'm using JDev 11g TP2
When I set up package preferences for business components, it is completely ignoring the package I setup for the Entity object.
Example:
From the menu Tools>Preferences
Under the section Business Components>Packages.
I set the following:
Business Component: left blank - it uses the default [prefix].model
Entity: entity
Association: entity.association
View Object: view
View Link: view.links
the rest have been left at default settings.
Then I create a new diagram so I can add existing database tables to the application. I drag and drop the selected tables from the application resources to the diagram. It creates the entity objects in the [prefix].model package, not the [prefix].model.entity package like I was expecting. However the associations get created correctly in the [prefix].model.entity.association package.
Is this possibly a bug, or just a training issue for me?
Thanks

No worries Ric. Unfortunately I don't have access to your latest builds but I'll still raise the issues in case they are relevant.
Regards,
CM.

ADF Business Components - Cascading Tables

I am using Oracle Jdeveloper 11.1.1.4.0
I have tried an approach to cascade two tables using ADF Business Components.
A single column is declared as Foreign key.
I have used 2 drop downs. During the value change of the first drop down, the values of second sholud be populated from data base.
How to achieve this using cascading tables.
Kindly help.

Hi,
For creating cascading(dependent) LOV in adf,list of values in ADF Application using BC4J as model.please follow below links,
https://blogs.oracle.com/aramamoo/entry/how_to_create_multi_level
http://mjabr.wordpress.com/2011/04/01/cascade-list-of-values/
Best Regards
Siva Sankar

Intermittent bug: Business Components from Tables wizard exception

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