Check your OJB.properties (PersistentFieldClass). You seems to be using PersistentFieldIntrospectorImpl which require JavaBeans-style getters and setters.
#---------------------------------------------------------------------------------------- # Meta data / mapping settings #---------------------------------------------------------------------------------------- # The PersistentFieldClass property defines the implementation class # for PersistentField attributes used in the OJB MetaData layer. # By default the best performing attribute/refection based implementation # is selected (PersistentFieldDirectAccessImpl). # # - PersistentFieldDirectAccessImpl # is a high-speed version of the access strategies. # It does not cooperate with an AccessController, # but accesses the fields directly. Persistent # attributes don't need getters and setters # and don't have to be declared public or protected # - PersistentFieldPrivilegedImpl # Same as above, but does cooperate with AccessController and do not # suppress the java language access check. # - PersistentFieldIntrospectorImpl # uses JavaBeans compliant calls only to access persistent attributes. # No Reflection is needed. But for each attribute xxx there must be # public getXxx() and setXxx() methods. # - PersistentFieldDynaBeanAccessImpl # implementation used to access a property from a # org.apache.commons.beanutils.DynaBean. ----- Original Message ----- From: "ANDRES FELIPE RINCON ZAPATA" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, February 03, 2004 4:11 PM Subject: IllegarlArgumentException Error I am a newbie in OJB. I was working with EJB entity beans and Jboss or Websphere in other projects. Last two weeks I was creating the persistent java classes and the repository files; I configured the conection for MSSql Server database; then I ran a simple unit test expectig a single row but it always returns an error. I was searching in the mail archive for similar questions but I didnīt find anything. All I know is that the connection is Ok and the repository and properties files are in the classpath. Any help will be appreciated. Thanks in advance. [DEFAULT] ERROR: Error in [PersistentFieldPropertyImpl], java.lang.IllegalArgumentException [DEFAULT] ERROR: Declaring class [com.ecip.ojb.AtributoImpl] [DEFAULT] ERROR: Property Name [idAtributo] [DEFAULT] ERROR: Property Type [java.lang.Integer] [DEFAULT] ERROR: anObject was class [com.ecip.ojb.AtributoImpl] [DEFAULT] ERROR: aValue was null [DEFAULT] ERROR: Error invoking method:getIdAtributo in object:com.ecip.ojb.AtributoImpl org.apache.ojb.broker.metadata.MetadataException: Error invoking method:getIdAtributo in object:com.ecip.ojb.AtributoImpl at org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldIntrospectorImpl.doGet(Unknown Source) at org.apache.ojb.broker.metadata.fieldaccess.AbstractPersistentField.get(Unknown Source) at org.apache.ojb.broker.query.QueryByCriteria.buildCriteria(Unknown Source) at org.apache.ojb.broker.query.QueryByCriteria.<init>(Unknown Source) at com.ecip.example.OjbExample.readAtributoId(OjbExample.java:40) at com.ecip.ojb.AtributoImplTest.testReadAtributoId1(AtributoImplTest.java:87) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at junit.framework.TestCase.runTest(TestCase.java:154) at junit.framework.TestCase.runBare(TestCase.java:127) at junit.framework.TestResult$1.protect(TestResult.java:106) at com.parasoft.eclipse.checker.java.unit.internal.core.test.RemoteTestRunner$1.runProtected(RemoteTestRunner.java:308) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118) at jtest.IndependentTestSuite$TestRunnerThread.run(IndependentTestSuite.java:249) Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) ... 17 more [DEFAULT] ERROR: Error in [PersistentFieldPropertyImpl], java.lang.IllegalArgumentException [DEFAULT] ERROR: Declaring class [com.ecip.ojb.AtributoImpl] [DEFAULT] ERROR: Property Name [atributo] [DEFAULT] ERROR: Property Type [java.lang.String] [DEFAULT] ERROR: anObject was class [com.ecip.ojb.AtributoImpl] [DEFAULT] ERROR: aValue was null [DEFAULT] ERROR: Error invoking method:getAtributo in object:com.ecip.ojb.AtributoImpl org.apache.ojb.broker.metadata.MetadataException: Error invoking method:getAtributo in object:com.ecip.ojb.AtributoImpl at org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldIntrospectorImpl.doGet(Unknown Source) at org.apache.ojb.broker.metadata.fieldaccess.AbstractPersistentField.get(Unknown Source) at org.apache.ojb.broker.query.QueryByCriteria.buildCriteria(Unknown Source) at org.apache.ojb.broker.query.QueryByCriteria.<init>(Unknown Source) at com.ecip.example.OjbExample.readAtributoId(OjbExample.java:40) at com.ecip.ojb.AtributoImplTest.testReadAtributoId1(AtributoImplTest.java:87) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at junit.framework.TestCase.runTest(TestCase.java:154) at junit.framework.TestCase.runBare(TestCase.java:127) at junit.framework.TestResult$1.protect(TestResult.java:106) at com.parasoft.eclipse.checker.java.unit.internal.core.test.RemoteTestRunner$1.runProtected(RemoteTestRunner.java:308) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118) at jtest.IndependentTestSuite$TestRunnerThread.run(IndependentTestSuite.java:249) Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) ... 17 more [DEFAULT] ERROR: Error in [PersistentFieldPropertyImpl], java.lang.IllegalArgumentException [DEFAULT] ERROR: Declaring class [com.ecip.ojb.AtributoImpl] [DEFAULT] ERROR: Property Name [descripcion] [DEFAULT] ERROR: Property Type [java.lang.String] [DEFAULT] ERROR: anObject was class [com.ecip.ojb.AtributoImpl] [DEFAULT] ERROR: aValue was null [DEFAULT] ERROR: Error invoking method:getDescripcion in object:com.ecip.ojb.AtributoImpl org.apache.ojb.broker.metadata.MetadataException: Error invoking method:getDescripcion in object:com.ecip.ojb.AtributoImpl at org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldIntrospectorImpl.doGet(Unknown Source) at org.apache.ojb.broker.metadata.fieldaccess.AbstractPersistentField.get(Unknown Source) at org.apache.ojb.broker.query.QueryByCriteria.buildCriteria(Unknown Source) at org.apache.ojb.broker.query.QueryByCriteria.<init>(Unknown Source) at com.ecip.example.OjbExample.readAtributoId(OjbExample.java:40) at com.ecip.ojb.AtributoImplTest.testReadAtributoId1(AtributoImplTest.java:87) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at junit.framework.TestCase.runTest(TestCase.java:154) at junit.framework.TestCase.runBare(TestCase.java:127) at junit.framework.TestResult$1.protect(TestResult.java:106) at com.parasoft.eclipse.checker.java.unit.internal.core.test.RemoteTestRunner$1.runProtected(RemoteTestRunner.java:308) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118) at jtest.IndependentTestSuite$TestRunnerThread.run(IndependentTestSuite.java:249) Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) ... 17 more --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
