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Date: Fri, 17 Jun 2011 13:53:48 +0000 (UTC)
From: "Jason Tholstrup (JIRA)" <jira@apache.org>
To: java-dev@axis.apache.org
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Subject: [jira] [Commented] (AXIS2-5072) BeanUtil bombs on missing setter
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    [ https://issues.apache.org/jira/browse/AXIS2-5072?page=3Dcom.atlassian=
.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D1305=
1076#comment-13051076 ]=20

Jason Tholstrup commented on AXIS2-5072:
----------------------------------------

I'd ask that you reconsider opening this issue as I believe you are misinte=
rpreting the JavaBeans specification. =20

    The javabeans specification allows for properties to have only a read m=
ethod or only a write method.  In my case, I have a getter and setter pair =
that require an additional parameter (this was not in the sample as I went =
for simplicity).  It is my expectation that since this does not constitute =
a property (it does not meet javaBeans specs) that it would be ignored.  In=
 the axis2-1.3 code this was the case.  Other Apache projects follow this i=
nterpretation as well. For example, BeanUtils (in commons-BeanUtils) would =
simply skip this property if you were to copy one instance of Event to anot=
her instance.

    Beans are allowed to expose methods which are not properties and read-o=
nly and write-only are perfectly acceptable.  From the javaBeans specificat=
ion (http://www.oracle.com/technetwork/java/javase/documentation/spec-13600=
4.html)=20

Section 2.2
The three most important features of a Java Bean are the set of properties =
it exposes, the set of methods it allows other components to call, and the =
set of events it fires.


Section 8.3.1

By default, we use design patterns to locate properties by looking for meth=
ods of the form:
public <PropertyType> get<PropertyName>(); public void set<PropertyName>(<P=
ropertyType> a);
If we discover a matching pair of =E2=80=9Cget<PropertyName>=E2=80=9D and =
=E2=80=9Cset<PropertyName>=E2=80=9D methods that take and return the same t=
ype, then we regard these methods as defining a read-write property whose n=
ame will be =E2=80=9C<propertyName>=E2=80=9D. We will use the =E2=80=9Cget<=
PropertyName>=E2=80=9D method to get the property value and the =E2=80=9Cse=
t<PropertyName>=E2=80=9D method to set the property value. The pair of meth=
ods may be located either in the same class or one may be in a base class a=
nd the other may be in a derived class.

If we find only one of these methods, then we regard it as defining either =
a read-only or a write- only property called =E2=80=9C<propertyName>=E2=80=
=9D

By default we assume that properties are neither bound nor constrained (see=
 Section 7). So a simple read-write property =E2=80=9Cfoo=E2=80=9D might be=
 represented by a pair of methods:
public Wombat getFoo(); public void setFoo(Wombat w);


Thanks,
Jason

> BeanUtil bombs on missing setter
> --------------------------------
>
>                 Key: AXIS2-5072
>                 URL: https://issues.apache.org/jira/browse/AXIS2-5072
>             Project: Axis2
>          Issue Type: Bug
>          Components: adb
>    Affects Versions: 1.6.0
>         Environment: OSX
>            Reporter: Jason Tholstrup
>            Assignee: Sagara Gunathunga=20
>              Labels: adb, beanutil
>             Fix For: 1.7.0
>
>
> First off, thanks for all your work on axis.
> I am currently upgrading from Axis2 1.3 to version 1.6  and I've run into=
 an issue.  BeanUtil bombs out on a missing setter property that is not in =
my WSDL when building response objects on my server side code (see stack tr=
ace below).  This "modifiedAttribute" property has a signature of isModifie=
dAttribute(int index) and is not included in any wsdl yet this section stil=
l throws an error.  Is there a reason elsewhere in the code where it makes =
sense to throw an exception if a property does not have a getter and a sett=
er?  To me the appropriate decision would seem to be to ignore anything tha=
t did not have both.  This seems to be the decision that my 1.3 version of =
the code went with since I wasn't seeing this issue before.  Any thoughts w=
ould be appreciated.=20
> Thanks,
> Jason Tholstrup
> 14:24:32.129 ERROR [http-8080-8]  o.a.a.rpc.receivers.RPCMessageReceiver.=
invokeBusinessLogic line:210 - org.apache.axis2.AxisFault: Property 'modifi=
edAttribute' in bean class 'com.nicusa.db.tables.Item'is not readable.
> java.lang.RuntimeException: org.apache.axis2.AxisFault: Property 'modifie=
dAttribute' in bean class 'com.nicusa.db.tables.Item'is not readable.
> =09at org.apache.axis2.databinding.utils.BeanUtil.getPropertyQnameList(Be=
anUtil.java:276) ~[axis2-adb-1.6.0.jar:1.6.0]
> =09at org.apache.axis2.databinding.utils.BeanUtil.getPropertyQnameList(Be=
anUtil.java:129) ~[axis2-adb-1.6.0.jar:1.6.0]
> =09at org.apache.axis2.databinding.utils.BeanUtil.getPullParser(BeanUtil.=
java:72) ~[axis2-adb-1.6.0.jar:1.6.0]
> =09at org.apache.axis2.databinding.utils.reader.ADBXMLStreamReaderImpl.pr=
ocessProperties(ADBXMLStreamReaderImpl.java:994) ~[axis2-adb-1.6.0.jar:1.6.=
0]
> =09at org.apache.axis2.databinding.utils.reader.ADBXMLStreamReaderImpl.ne=
xt(ADBXMLStreamReaderImpl.java:850) ~[axis2-adb-1.6.0.jar:1.6.0]
> =09at org.apache.axis2.util.StreamWrapper.next(StreamWrapper.java:71) ~[a=
xis2-kernel-1.6.0.jar:1.6.0]
> =09at org.apache.axiom.om.impl.builder.StAXOMBuilder.parserNext(StAXOMBui=
lder.java:681) ~[axiom-api-1.2.11.jar:1.2.11]
> =09at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.j=
ava:214) ~[axiom-api-1.2.11.jar:1.2.11]
> =09at org.apache.axiom.om.impl.llom.OMSerializableImpl.build(OMSerializab=
leImpl.java:78) ~[axiom-impl-1.2.11.jar:1.2.11]
> =09at org.apache.axiom.om.impl.llom.OMElementImpl.build(OMElementImpl.jav=
a:722) ~[axiom-impl-1.2.11.jar:1.2.11]
> =09at org.apache.axiom.om.impl.llom.OMElementImpl.detach(OMElementImpl.ja=
va:700) ~[axiom-impl-1.2.11.jar:1.2.11]
> =09at org.apache.axiom.om.impl.llom.OMNodeImpl.setParent(OMNodeImpl.java:=
105) ~[axiom-impl-1.2.11.jar:1.2.11]
> =09at org.apache.axiom.om.impl.llom.OMElementImpl.addChild(OMElementImpl.=
java:296) ~[axiom-impl-1.2.11.jar:1.2.11]
> =09at org.apache.axiom.om.impl.llom.OMElementImpl.addChild(OMElementImpl.=
java:212) ~[axiom-impl-1.2.11.jar:1.2.11]
> =09at org.apache.axis2.rpc.receivers.RPCUtil.processResponse(RPCUtil.java=
:105) ~[axis2-adb-1.6.0.jar:1.6.0]
> =09at org.apache.axis2.rpc.receivers.RPCUtil.processResponseAsDocLitWrapp=
ed(RPCUtil.java:456) ~[axis2-adb-1.6.0.jar:1.6.0]
> =09at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLog=
ic(RPCMessageReceiver.java:153) ~[axis2-adb-1.6.0.jar:1.6.0]
> =09at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusin=
essLogic(AbstractInOutMessageReceiver.java:40) [axis2-kernel-1.6.0.jar:1.6.=
0]
> =09at org.apache.axis2.receivers.AbstractMessageReceiver.receive(Abstract=
MessageReceiver.java:110) [axis2-kernel-1.6.0.jar:1.6.0]
> =09at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:181) [ax=
is2-kernel-1.6.0.jar:1.6.0]
> =09at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostR=
equest(HTTPTransportUtils.java:172) [axis2-transport-http-1.6.0.jar:na]
> =09at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java=
:146) [axis2-transport-http-1.6.0.jar:na]
> =09at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) [servl=
et-api.jar:na]
> =09at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) [servl=
et-api.jar:na]
> =09at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Ap=
plicationFilterChain.java:290) [catalina.jar:6.0.29]
> =09at org.apache.catalina.core.ApplicationFilterChain.doFilter(Applicatio=
nFilterChain.java:206) [catalina.jar:6.0.29]
> =09at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrappe=
rValve.java:233) [catalina.jar:6.0.29]
> =09at org.apache.catalina.core.StandardContextValve.invoke(StandardContex=
tValve.java:191) [catalina.jar:6.0.29]
> =09at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve=
.java:127) [catalina.jar:6.0.29]
> =09at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve=
.java:102) [catalina.jar:6.0.29]
> =09at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineV=
alve.java:109) [catalina.jar:6.0.29]
> =09at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.j=
ava:298) [catalina.jar:6.0.29]
> =09at org.apache.coyote.http11.Http11Processor.process(Http11Processor.ja=
va:857) [tomcat-coyote.jar:6.0.29]
> =09at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.pro=
cess(Http11Protocol.java:588) [tomcat-coyote.jar:6.0.29]
> =09at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:=
489) [tomcat-coyote.jar:6.0.29]
> =09at java.lang.Thread.run(Thread.java:680) [na:1.6.0_24]
> Caused by: org.apache.axis2.AxisFault: Property 'modifiedAttribute' in be=
an class 'com.nicusa.db.tables.Item'is not readable.
> =09at org.apache.axis2.databinding.utils.BeanUtil.getPropertyQnameList(Be=
anUtil.java:189) ~[axis2-adb-1.6.0.jar:1.6.0]
> =09... 35 common frames omitted

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