DCA-29000: Unexpected Exception Caught: Java.lang.NullPointerException (Doc ID 2945745.1)

Last updated on APRIL 30, 2023

Applies to:

Symptoms

An ADF JPA application started reporting NPE exceptions after migrating to ADF 12.2.1.4.0.  The issue occurs when calling the create action.

This issue was noticed in three different scenarios -- when calling three different ADF Classes, namely OperationBinding, MethodExpression & RowIterator.

Scenario 1:

Exception message:

oracle.adf.model.adapter.AdapterException: DCA-29000: Unexpected exception caught: java.lang.NullPointerException, msg=null
at oracle.adf.model.adapter.dataformat.BeanHandler.getStructure(BeanHandler.java:127)
at oracle.adf.model.adapter.bean.JavaBeanDataControl.getDefinition(JavaBeanDataControl.java:181)
at oracle.adf.model.adapter.bean.JavaBeanDataControl.getStructureDefinition(JavaBeanDataControl.java:150)
at oracle.adf.model.adapter.bean.JavaBeanDataControl.findAccessorDefinition(JavaBeanDataControl.java:224)
at oracle.adf.model.adapter.bean.JavaBeanDataControl.getAssociatedMethodName(JavaBeanDataControl.java:253)
at oracle.adfinternal.model.adapter.ejb.EjbDCDefinitionDataControl.getAddMethodName(EjbDCDefinitionDataControl.java:54)
at oracle.adf.model.adapter.bean.UpdatableBeanDataControl.createRowData(UpdatableBeanDataControl.java:177)
at oracle.adf.model.adapter.bean.JavaBeanDataControl.createRowData(JavaBeanDataControl.java:461)
at oracle.adf.model.bean.DCBeanDataControl.createRowData(DCBeanDataControl.java:810)
at oracle.adf.model.bean.DCDataVO.doCreateData(DCDataVO.java:1095)
at oracle.adf.model.bean.DCDataRow.createRowData(DCDataRow.java:264)
:::::::::
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:272)
at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:352)
at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:337)
at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:57)
at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:655)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:420)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:360)
Caused by: java.lang.NullPointerException
at oracle.adfinternal.model.adapter.bean.BeanStructureDefinitionBuilder.addDefs(BeanStructureDefinitionBuilder.java:478)
at oracle.adfinternal.model.adapter.bean.BeanStructureDefinitionBuilder.findOrCreateStructureDef(BeanStructureDefinitionBuilder.java:462)
at oracle.adfinternal.model.adapter.bean.BeanStructureDefinitionBuilder.findOrCreateStructureDef(BeanStructureDefinitionBuilder.java:431)
at oracle.adfinternal.model.adapter.bean.BeanStructureDefinitionBuilder.addStructureDef(BeanStructureDefinitionBuilder.java:750)
at oracle.adfinternal.model.adapter.bean.BeanStructureDefinitionBuilder.addDefs(BeanStructureDefinitionBuilder.java:523)
:::::::::
at oracle.adfinternal.model.adapter.bean.BeanStructureDefinitionBuilder.addDefs(BeanStructureDefinitionBuilder.java:511)
at oracle.adfinternal.model.adapter.bean.BeanStructureDefinitionBuilder.findOrCreateStructureDef(BeanStructureDefinitionBuilder.java:462)
at oracle.adfinternal.model.adapter.bean.BeanStructureDefinitionBuilder.buildStructure(BeanStructureDefinitionBuilder.java:400)
at oracle.adf.model.adapter.dataformat.BeanHandler.getStructure(BeanHandler.java:119)
... 154 more

Changes

ADF was upgraded from 12.1.3.0.0 to 12.2.1.4.0

Cause

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