NullPointerException was thrown while extracting a value from an instance

Dear all,
We have got a null point exception during commit call. According to the stack trace shown below, it seems that it is a problem due to instance variable accessor. As we know toplink use reflection to access the instance variable value. I am curious whether the exception we got is related to any class-loader setting. Thanks a lot.
=================
Stack Trace:
Exception [TOPLINK-69] (OracleAS TopLink - 10g (9.0.4.5) (Build 040930)): oracle
.toplink.exceptions.DescriptorException
Exception Description: A NullPointerException was thrown while extracting a valu
e from the instance variable [versionID] in the object [com.oocl.csc.frm.pom.tes
t.model.Company].
Internal Exception: java.lang.NullPointerException
Mapping: oracle.toplink.mappings.DirectToFieldMapping[versionID-->COMPANY.VERSIO
NID]
Descriptor: Descriptor(com.oocl.csc.frm.pom.test.model.Company --> [DatabaseTabl
e(COMPANY)])
at oracle.toplink.exceptions.DescriptorException.nullPointerWhileGetting
ValueThruInstanceVariableAccessor(DescriptorException.java:1022)
at oracle.toplink.internal.descriptors.InstanceVariableAttributeAccessor
.getAttributeValueFromObject(InstanceVariableAttributeAccessor.java:68)
at oracle.toplink.mappings.DatabaseMapping.getAttributeValueFromObject(D
atabaseMapping.java:304)
at oracle.toplink.mappings.DirectToFieldMapping.iterate(DirectToFieldMap
ping.java:355)
at oracle.toplink.internal.descriptors.ObjectBuilder.iterate(ObjectBuild
er.java:1438)
at oracle.toplink.internal.descriptors.DescriptorIterator.iterateReferen
ceObjects(DescriptorIterator.java:258)
at oracle.toplink.internal.descriptors.DescriptorIterator.startIteration
On(DescriptorIterator.java:407)
at oracle.toplink.publicinterface.UnitOfWork.discoverUnregisteredNewObje
cts(UnitOfWork.java:1368)
at oracle.toplink.publicinterface.UnitOfWork.discoverAllUnregisteredNewO
bjects(UnitOfWork.java:1290)
at oracle.toplink.publicinterface.UnitOfWork.assignSequenceNumbers(UnitO
fWork.java:326)
at oracle.toplink.publicinterface.UnitOfWork.collectAndPrepareObjectsFor
Commit(UnitOfWork.java:664)
at oracle.toplink.publicinterface.UnitOfWork.commitToDatabaseWithChangeS
et(UnitOfWork.java:1130)
at oracle.toplink.publicinterface.UnitOfWork.commitRootUnitOfWork(UnitOf
Work.java:956)
at oracle.toplink.publicinterface.UnitOfWork.commit(UnitOfWork.java:771)
====================
====================
Mapping Description:
<?xml version = '1.0' encoding = 'UTF-8'?>
<project>
<project-name>POM-TEST</project-name>
<login>
<database-login>
<platform>oracle.toplink.oraclespecific.Oracle9Platform</platform>
<driver-class>oracle.jdbc.driver.OracleDriver</driver-class>
<connection-url>jdbc:oracle:thin:@sjcngdb2:1521:cdrfrmdv</connection-ur
l>
<user-name>pomowner</user-name>
<password>BB742416276274A47F360CCDD2711570</password>
<uses-native-sequencing>false</uses-native-sequencing>
<sequence-preallocation-size>50</sequence-preallocation-size>
<sequence-table>SEQUENCE</sequence-table>
<sequence-name-field>SEQ_NAME</sequence-name-field>
<sequence-counter-field>SEQ_COUNT</sequence-counter-field>
<should-bind-all-parameters>false</should-bind-all-parameters>
<should-cache-all-statements>false</should-cache-all-statements>
<uses-byte-array-binding>true</uses-byte-array-binding>
<uses-string-binding>false</uses-string-binding>
<uses-streams-for-binding>false</uses-streams-for-binding>
<should-force-field-names-to-upper-case>false</should-force-field-names
-to-upper-case>
<should-optimize-data-conversion>true</should-optimize-data-conversion>
<should-trim-strings>true</should-trim-strings>
<uses-batch-writing>false</uses-batch-writing>
<uses-jdbc-batch-writing>true</uses-jdbc-batch-writing>
<uses-external-connection-pooling>false</uses-external-connection-pooli
ng>
<uses-external-transaction-controller>false</uses-external-transaction-
controller>
<type>oracle.toplink.sessions.DatabaseLogin</type>
</database-login>
</login>
<java-class>com.oocl.csc.frm.pom.test.model.Company</java-class>
<tables>
<table>COMPANY</table>
</tables>
<primary-key-fields>
<field>COMPANY.COMPANY_KEY</field>
</primary-key-fields>
<descriptor-type-value>Normal</descriptor-type-value>
<identity-map-class>oracle.toplink.internal.identitymaps.SoftCacheWeakI
dentityMap</identity-map-class>
<remote-identity-map-class>oracle.toplink.internal.identitymaps.SoftCac
heWeakIdentityMap</remote-identity-map-class>
<identity-map-size>100</identity-map-size>
<remote-identity-map-size>100</remote-identity-map-size>
<should-always-refresh-cache>false</should-always-refresh-cache>
<should-always-refresh-cache-on-remote>false</should-always-refresh-cac
he-on-remote>
<should-only-refresh-cache-if-newer-version>false</should-only-refresh-
cache-if-newer-version>
<should-disable-cache-hits>false</should-disable-cache-hits>
<should-disable-cache-hits-on-remote>false</should-disable-cache-hits-o
n-remote>
<alias>Company</alias>
<copy-policy>
<descriptor-copy-policy>
<type>oracle.toplink.internal.descriptors.CopyPolicy</type>
</descriptor-copy-policy>
</copy-policy>
<instantiation-policy>
<descriptor-instantiation-policy>
<type>oracle.toplink.internal.descriptors.InstantiationPolicy</ty
pe>
</descriptor-instantiation-policy>
</instantiation-policy>
<query-manager>
<descriptor-query-manager>
<existence-check>Check cache</existence-check>
</descriptor-query-manager>
</query-manager>
<event-manager>
<descriptor-event-manager empty-aggregate="true"/>
</event-manager>
<mappings>
<database-mapping>
<attribute-name>companyKey</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.COMPANY_KEY</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>contact</attribute-name>
<read-only>false</read-only>
<reference-class>com.oocl.csc.frm.pom.test.model.Contact</referen
ce-class>
<is-private-owned>false</is-private-owned>
<uses-batch-reading>false</uses-batch-reading>
<indirection-policy>
<mapping-indirection-policy>
<type>oracle.toplink.internal.indirection.NoIndirectionPoli
cy</type>
</mapping-indirection-policy>
</indirection-policy>
<uses-joining>false</uses-joining>
<foreign-key-fields>
<field>COMPANY.CONTACT_OID</field>
</foreign-key-fields>
<source-to-target-key-field-associations>
<association>
<association-key>COMPANY.CONTACT_OID</association-key>
<association-value>CONTACT.POID</association-value>
</association>
</source-to-target-key-field-associations>
<type>oracle.toplink.mappings.OneToOneMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>createdBy</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.CREATED_BY</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>creationClientID</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.CREATION_CLIENTID</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>creationTime</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.CREATION_TIME</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>employeeList</attribute-name>
<read-only>false</read-only>
<reference-class>com.oocl.csc.frm.pom.test.model.Person</referenc
e-class>
<is-private-owned>false</is-private-owned>
<uses-batch-reading>false</uses-batch-reading>
<indirection-policy>
<mapping-indirection-policy>
<type>oracle.toplink.internal.indirection.NoIndirectionPoli
cy</type>
</mapping-indirection-policy>
</indirection-policy>
<container-policy>
<mapping-container-policy>
<container-class>com.oocl.csc.frm.pom.impl.FWPersistentArra
yList</container-class>
<type>oracle.toplink.internal.queryframework.ListContainerP
olicy</type>
</mapping-container-policy>
</container-policy>
<relation-table>EMPLOYEMENT</relation-table>
<source-key-fields>
<field>COMPANY.COMPANY_KEY</field>
</source-key-fields>
<source-relation-key-fields>
<field>EMPLOYEMENT.EMPLOYER_KEY</field>
</source-relation-key-fields>
<target-key-fields>
<field>PERSON.POID</field>
</target-key-fields>
<target-relation-key-fields>
<field>EMPLOYEMENT.EMPLOYEE_ID</field>
</target-relation-key-fields>
<type>oracle.toplink.mappings.ManyToManyMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>lastUpdateClientID</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.LAST_UPDATE_CLIENTID</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>lastUpdatedBy</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.LAST_UPDATED_BY</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>lastUpdateTime</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.LAST_UPDATE_TIME</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>name</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.NAME</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>partner</attribute-name>
<read-only>false</read-only>
<reference-class>com.oocl.csc.frm.pom.test.model.Company</referen
ce-class>
<is-private-owned>false</is-private-owned>
<uses-batch-reading>false</uses-batch-reading>
<indirection-policy>
<mapping-indirection-policy>
<type>oracle.toplink.internal.indirection.NoIndirectionPoli
cy</type>
</mapping-indirection-policy>
</indirection-policy>
<uses-joining>false</uses-joining>
<foreign-key-fields>
<field>COMPANY.PARTNER</field>
</foreign-key-fields>
<source-to-target-key-field-associations>
<association>
<association-key>COMPANY.PARTNER</association-key>
<association-value>COMPANY.COMPANY_KEY</association-value>
</association>
</source-to-target-key-field-associations>
<type>oracle.toplink.mappings.OneToOneMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>persistentCtxt</attribute-name>
<read-only>false</read-only>
<reference-class>com.oocl.csc.frm.pom.impl.FWPOMPersistentContext
</reference-class>
<is-null-allowed>false</is-null-allowed>
<aggregate-to-source-field-name-associations>
<association>
<association-key>OWNERID</association-key>
<association-value>COMPANY.OWNERID</association-value>
</association>
<association>
<association-key>ROOTID</association-key>
<association-value>COMPANY.ROOTID</association-value>
</association>
</aggregate-to-source-field-name-associations>
<type>oracle.toplink.mappings.AggregateObjectMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>poid</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.POID</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>version</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.VERSION</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>versionID</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.VERSIONID</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
</mappings>
<type>oracle.toplink.publicinterface.Descriptor</type>
</descriptor>
</descriptors>
</project>
====================
====================
Session Creation Method:
SessionBroker broker = (SessionBroker) manager.getSession(brokerName, Thread.currentThread().getContextClassLoader());
broker.getLogin().getPlatform().getConversionManager().setLoader(Thread.currentThread().getContextClassLoader());
====================
===================
Class Hierarchy:
Object extends> ..xxx.. extends> FWObject extends> Company
The problematic attribute -- versionID -- is defined at "FWObject" level.
===================
===================
Environment Configuration:
Application Server version: 10.1.2
TopLink version : 9.0.4.5
TopLink classpath: specified at container level
FWObject classpath: specified at container level
Company classpath: specified at application level
===================
Thanks and regards,
William

Dear All,
We have loaded the toplink.jar to container level instead of application level. Don't know whether it is a possible source of error. Moreover, what is the purpose of loading antlr.jar? What is this jar for?
Thanks and regards,
William

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Process exited.

Hi,
I got the answer to my question. The tables were not populated. So I ran the script - populateSchemaTables.sql, and got the data into the tables. The error is gone!
Lin

Error while fetching the values from database

hiii all,
I have a dynpro project where i am using JDBC codes to fetch data from tables. I have used 2SQL queries...in the first query i am fetching values from 2tables and taking the result from this i run another query.As a result i expect 19591 records as the output....
1)when i put while loop for 19000, 19000records are being within 1min.....
2)when i put while loop for 20000, exception is thrown as :
ArrayIndexOutOfboundsException : size:19591,i:19591
i is variable for while loop
3)when i dont put any condition for while loop, itz taking unlimited time and output is not displayed....
please do help out...

group_rs1 = group_st1.executeQuery("SELECT A.JOINT_ID,C.LINE_ID FROM EALPS_DRWREVSPLJTS A,EALPS_DRW_REV_SPL B,EALPS_DRW_REV_LINE C WHERE"
                                                            + " B.SPOOL_ID=A.SPOOL_ID AND B.LINE_ID=C.LINE_ID");
                         //group_rs1=group_st1.executeQuery("SELECT D.TESTLEVELNO FROM EALPS_EALPS_DRWREVSPLJTS A,WELDTESTCRIT D WHERE D.WELD_TEST_CRIT_ID=A.WELDTEST_CRI_ID ");
                         //wdComponentAPI.getMessageManager().reportSuccess("connection.toString ="+conn.toString());
          int index1=0;
          while(group_rs1.next())
               arr_joint_id.add((group_rs1.getString(1)));
               arr_line_id.add(group_rs1.getString(2));
                                             index1++;
          for(int i = 0; i <arr_joint_id.size(); i++)
               String joint_id = arr_joint_id.get(i).toString();
               group_rs = group_st.executeQuery("SELECT A.SIZE_NBMM,A.ISFIELDJOINT,A.WELDTEST_CRI_ID,D.TESTLEVELNO,E.COMPLETE FROM EALPS_DRWREVSPLJTS A,EALPS_WELDTESTCRIT D,EALPS_ACTV_SEQ E WHERE"
                                                                                                    + " A.JOINT_ID='" + joint_id +"' OR D.WELD_TEST_CRIT_ID=A.WELDTEST_CRI_ID OR E.JOINT_ID=A.JOINT_ID");
          int index = 0;
                                   while(group_rs.next())
                                             //wdComponentAPI.getMessageManager().reportSuccess("inside while loop");
                                        arr_size.add(new Float(group_rs.getFloat(1)));
                                        arr_isfieldjoint.add(group_rs.getString(2));
                                        arr_weldtest_cri_id.add(new Long(group_rs.getLong(3)));
                                        arr_testlevelno.add(group_rs.getString(4));
                                        arr_complete.add(group_rs.getString(5));
                                   index++;
thanks a lot for pointing out my mistake that i was taking the last resultset and performing operations on that only....
please go thru my code,i have changed them....now i am taking all the values from each of the record-sets...............but now itz taking infinite time after which the page is exprining....can u plzz suggest.............

Error Thrown while assinging the value into OBJECT TYPE

Hi Oracle Experts:
i was create one Oracle OBJECT, that object contain only one variable, and i created one function which is return the object(system date), but while i complied that procedure i was thrown the error message like ORA-06530: Reference to uninitilized composite .
can any one tell me how can i use the object variable in the select statement into clause .
Below i pasted my code.
CREATE OR REPLACE TYPE str_batch IS OBJECT
sys_date DATE
CREATE OR REPLACE FUNCTION F_Ln_Getodperd
p_s_actype VARCHAR2,
p_s_acno VARCHAR2,
p_n_bal NUMBER,
p_d_prodt DATE
)RETURN str_batch
IS
lstr_od str_batch ;
BEGIN
SELECT SYSDATE INTO lstr_od.sys_date FROM dual; -- Error(Error message shown in below)
dbms_output.put_line('');
RETURN lstr_od;
END;
Error:
ORA-06530: Reference to uninitilized composite
Thanks in advance
Arun M M

Hi Mr. Saubhik
Below i Paste my original source code. Still am facing the same problem while i execute the function. can you please tell me the solution for this.
OBJECT :
CREATE OR REPLACE TYPE str_batch IS OBJECT
batchno NUMBER,
batchslno NUMBER,
act_type VARCHAR2(20),
act_no VARCHAR2(20),
curr_code VARCHAR2(10),
amount NUMBER(23,5),
MOD VARCHAR2(10),
drcr VARCHAR2(2),
cheqno VARCHAR2(20),
cheqdt DATE,
sts VARCHAR2(4),
operid NUMBER,
narr VARCHAR2(300),
srno VARCHAR2(10),
rem_type VARCHAR2(10)
Function :
CREATE OR REPLACE FUNCTION F_Ln_Getodperd
p_s_actype IN VARCHAR2,
p_s_acno IN VARCHAR2,
p_n_bal IN NUMBER,
p_d_prodt IN DATE
)RETURN str_batch
IS
lstr_od str_batch ;
-- Variable Declaration
     v_n_perd     NUMBER;
     v_n_lnperd     NUMBER;
     v_n_mon NUMBER;
     v_n_effmon NUMBER;
     v_n_instno NUMBER;
     v_n_odno NUMBER;
     v_n_actual NUMBER(23,5);
     v_n_diff     NUMBER(23,5);
     v_n_inst     NUMBER(23,5);
     v_d_first     DATE;
     v_d_exp DATE;
     v_d_oddt     DATE;
     v_d_lastprod DATE;
     v_s_instmode VARCHAR2(10);
     v_s_inst     VARCHAR2(10);
     v_s_branch VARCHAR2(10);
     v_s_errm VARCHAR2(20000);
BEGIN
SELECT F_Get_Brcode INTO v_s_branch FROM dual;
     SELECT pay_c_final,lon_d_expiry, lon_d_lastprod
     INTO     v_s_inst,v_d_exp, v_d_lastprod
     FROM      LOAN_MAST
     WHERE branch_c_code = v_s_branch AND
          act_c_type      = p_s_actype AND
          act_c_no      = p_s_acno;
     IF (p_d_prodt > v_d_exp) THEN
          SELECT CEIL(MONTHS_BETWEEN(p_d_prodt,v_d_exp)) INTO lstr_od.batchslno FROM dual;
          lstr_od.cheqdt := v_d_exp;
          SELECT v_d_lastprod - p_d_prodt INTO lstr_od.batchslno FROM dual;
          --lstr_od.batchslno = DaysAfter(DATE(ldt_lastprod), DATE(adt_prodt))
     ELSE
          IF (v_s_inst = 'N') THEN
               IF p_d_prodt > v_d_exp THEN
                    SELECT CEIL(MONTHS_BETWEEN(p_d_prodt,v_d_exp)) INTO lstr_od.batchslno FROM dual;
                    lstr_od.cheqdt := v_d_exp;
               ELSE
                    lstr_od.batchslno := 1;
               END IF;
          ELSIF (v_s_inst = 'Y') THEN
               SELECT first_d_due,lon_c_instperd,lon_n_perd
               INTO v_d_first,v_s_instmode,v_n_lnperd
               FROM LOAN_MAST
               WHERE branch_c_code = v_s_branch AND
                    act_c_type      = p_s_actype AND
                    act_c_no          = p_s_acno;
          SELECT CEIL(MONTHS_BETWEEN(p_d_prodt,v_d_first)) INTO v_n_mon FROM dual;
               IF v_n_mon > 0 THEN
                    SELECT NVL(ln_n_balance,0),NVL(ln_n_instlamt,0),NVL(ln_n_instlno,0)
                    INTO v_n_actual,v_n_inst,v_n_instno
                    FROM LOAN_INST_SCH
                    WHERE act_c_type = p_s_actype AND
                         act_c_no     = p_s_acno AND
                         ln_d_effdate = (SELECT MAX(ln_d_effdate)
                                                       FROM     LOAN_INST_SCH
                                                       WHERE act_c_type = p_s_actype AND
                                                                 act_c_no = p_s_acno AND
                                                                 ln_d_effdate < p_d_prodt);
                    IF (p_n_bal > v_n_actual) THEN
                         IF v_n_inst > 0 THEN
                         lstr_od.batchslno := (p_n_bal - v_n_actual) / v_n_inst;
                         END IF;
                    ELSE
                         lstr_od.batchslno := 1;
                    END IF;
                    IF lstr_od.batchslno = 0 THEN
                    lstr_od.batchslno := 1;
                    END IF;
                    --FOR FULL OD
                    IF (v_n_mon > v_n_lnperd) THEN
                    lstr_od.batchslno := (v_n_mon - v_n_lnperd) + lstr_od.batchslno;
                    END IF;
                    IF v_s_instmode = 'Q' THEN
                    lstr_od.batchslno := lstr_od.batchslno * 3;
                    ELSIF v_s_instmode = 'H' THEN
                    lstr_od.batchslno := lstr_od.batchslno * 6;
                    ELSIF v_s_instmode = 'Y' THEN
                    lstr_od.batchslno := lstr_od.batchslno * 12;
                    END IF;
                    SELECT p_d_prodt - lstr_od.batchslno INTO lstr_od.cheqdt FROM dual;
                    IF v_s_instmode = 'M' THEN
                    v_n_odno := v_n_instno - lstr_od.batchslno; -- TO get OD DATE
                         SELECT ln_d_effdate
                         INTO lstr_od.cheqdt
                         FROM LOAN_INST_SCH
                         WHERE act_c_type = p_s_actype AND
                              act_c_no     = p_s_acno AND
                              ln_n_instlno = v_n_odno;
                         IF SQLCODE = -1 THEN
                         lstr_od.batchslno := -1;
                         RETURN lstr_od;
                         END IF;
                    END IF;
                    ELSE
                    lstr_od.batchslno := 1;
                    END IF;
          END IF;
          END IF;
RETURN lstr_od;
EXCEPTION
WHEN OTHERS THEN
v_s_errm := SQLERRM;
dbms_output.put_line(SQLERRM);
lstr_od.batchslno := -1;
RETURN lstr_od;
END;
/

NPE thrown while launching AK Pages from Apps Homepage

Hi,
Tech. Stack
Product/Component Version
OA Framework 11.5.10 3CU
Oracle Applications Extension 9.0.3.8.13 - build 1372
Business Components 9.0.3.13.87
UIX (Cabo) 2_2_22
BiBeans Runtime 3.1.0.70 nondebug BI Beans OAF 11.5.10 Production Release
MDS 9.0.5.4.89_554
XML Oracle XDK Java 9.0.4.0.0 Production
AOL/J Applications Object Library, Core Java Roll Up Patch J
Servlet 2.2
Java 1.4.2_04
JDBC Driver 9.2.0.6.0
Database Oracle Database 10g Enterprise Edition Release 10.1.0.4.0 - Prod
Operating System Linux 2.4.21-27.0.2.1.7.ELhugemem
Browser Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 1.1.4322)
Issue
NPE is thrown while launching pages (tied to resp. menu) from the Apps Home Page. Also occurs while accessing the workflow notifications.
Exception Stack
oracle.apps.fnd.framework.OAException: Application: FND, Message Name: FND_GENERIC_MESSAGE. Tokens: MESSAGE = java.lang.NullPointerException;
     at oracle.apps.fnd.framework.OAException.wrapperException(OAException.java:891)
     at oracle.apps.fnd.framework.webui.OAPageErrorHandler.prepareException(OAPageErrorHandler.java:1145)
     at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:1959)
     at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:501)
     at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:422)
## Detail 0 ##
java.lang.NullPointerException
     at oracle.jbo.pcoll.PCollManager.register(PCollManager.java:495)
     at oracle.jbo.pcoll.PCollection.<init>(PCollection.java:94)
     at oracle.jbo.pcoll.PCollManager.createCollection(PCollManager.java:403)
     at oracle.jbo.pcoll.PCollManager.createCollection(PCollManager.java:410)
     at oracle.jbo.server.QueryCollection.initQC(QueryCollection.java:172)
     at oracle.jbo.server.QueryCollection.<init>(QueryCollection.java:113)
     at oracle.jbo.server.ViewRowSetImpl.initQueryCollection(ViewRowSetImpl.java:413)
     at oracle.jbo.server.ViewRowSetImpl.execute(ViewRowSetImpl.java:567)
     at oracle.jbo.server.ViewRowSetImpl.execute(ViewRowSetImpl.java:544)
     at oracle.jbo.server.ViewRowSetImpl.executeDetailQuery(ViewRowSetImpl.java:619)
     at oracle.jbo.server.ViewObjectImpl.executeDetailQuery(ViewObjectImpl.java:3311)
     at oracle.jbo.server.ViewObjectImpl.executeQuery(ViewObjectImpl.java:3298)
     at oracle.apps.fnd.framework.server.OAViewObjectImpl.executeQuery(OAViewObjectImpl.java:444)
     at oracle.apps.fnd.framework.webui.OAWebBeanFactoryImpl.getAppShortName(OAWebBeanFactoryImpl.java:5359)
     at oracle.apps.fnd.framework.webui.OAWebBeanFactoryImpl.getWebBeanTypeDataFromJRAD(OAWebBeanFactoryImpl.java:3720)
     at oracle.apps.fnd.framework.webui.OAWebBeanFactoryImpl.getRootApplicationModuleClass(OAWebBeanFactoryImpl.java:3460)
     at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:992)
     at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:501)
     at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:422)
     at oa_html._OA._jspService(_OA.java:88)
Observations
This behavior is intermittent and occurs only while launching the Pages that point to the AK Regions. OAF Pages work fine.
Bouncing the Middle tier, resolves the issue for now. But crops up again in a few days.
It happens only in one instance, the other instances are working fine. All of them equate for tech-stack level.
Code Insight
Seems like the PCollManager.mCols is null. This is set to null only while releasing the connection.
Not sure as to how the connection gets released here. If this is the case, why is it happening only in this instance?
Also how does it work fine for other OAF Pages?
Thanks,
Srinath Mani.

Hi Mani,
Recommend you try the OA Framework forum: OA Framework
Regards,
John

Extracting all values from multiple menus

Hello all,
Basically I have a jsp that consists of three of what FrontPage calls drop down boxes but I will hereafter call list boxes, each containing a number of options extracted from a database; these values can be moved from one box to another using java script. When I hit a submit button I wish to be able to extract all the values from two of these lists and add them into a database. I know how to extract selected values but I need all the values of both lists regardless of what the user selects and I need the contents of each kept distinct.
Any help provided will be appreciated and I apologize if this question is something all the forum vets have already seen before.
Philip

Only the values that are selected will be submitted
with the form. So, add a call to your form tag's
onSubmit event to call a function like this:<form name='myForm' onsubmit='selectAll()'>
<script language='javascript'>
function selectAll() {
for(i=0; i<myForm.mySelectList.options.length; i++)
myForm.mySelectList.options.selected = true;
// do the same for the other two select lists
</script>
Thanks for the tip, but unfortunately this means that the two list boxes that I want will become intermingled. Is there a way to keep the information in the two lists seperate?
Philip

How to extract the values from WPBP table

Hi experts,
We are in preparation of a custom report.
In the report we want to have a value from WPBP table.
We want to extract the value of Capacity utilization level from WPBP table.
Could you please let me know the way to extract the value.
Please advice.
Regards,
Sairam.

Hi Sairam,
Why do you try to get capacity utilization level from WBPB. Even if there is split in payroll capacity utilizatian level in WPBP shows the value in IT0008 basic pay.
So instead you can get the required information from table PA0008 Field for capacity utilization level is BSGRD
Regards;
Okan

NullPointerException was thrown while extracting a value from an instance

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