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RE: [aspectj-users] FW: NoSuchMethodError: aspectOf()
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Hi Andy,
Thank you for the detailed explanation. My aspect works now.
Thanks,
Roger
-----Original Message-----
From: aspectj-users-bounces@xxxxxxxxxxx [mailto:aspectj-users-bounces@xxxxxxxxxxx] On Behalf Of Andy Clement
Sent: Sunday, November 01, 2009 7:49 PM
To: aspectj-users@xxxxxxxxxxx
Subject: Re: [aspectj-users] FW: NoSuchMethodError: aspectOf()
Hi Roger,
There are three paths to think about with AspectJ:
classpath: for resolving references found in any of the code the compiler/weaver are processing. This path is not searched for aspects, and the contents of it are not woven and not copied to the output folder.
inpath: input .class files for weaving. Contents of this path *are* woven and *are* copied to the output folder, it is also searched for aspects.
aspectpath: input aspect .class files for weaving. Contents of this path are not woven and are not copied to the output folder, but it is searched for aspects.
Your annotation style aspect is compiled by javac and then passed in via aspectpath. Unfortunately as I have written above, the contents of aspect path are not woven - so your aspect is never 'finished off'.
You have a few options:
1) compile the aspect with iajc rather than javac.
2) after compiling with javac, add a step to pass it through iajc to finish it off.
3) pass it on inpath to your existing iajc call.
Each has pros/cons. (1) you may have written the aspect using annotations in the first place to avoid using iajc initially. (2) adds extra compile step to your process. (3) the woven aspect will go into the output folder. So the aspect class files will be 'mixed up' with your woven application.
cheers,
Andy
2009/10/31 Roger Huang <rhuang@xxxxxxxxxxxxxxx>:
> Hi Andy,
>
> Thank you very much for looking at my problem.
>
> Yes I included the aspect in my call to iajc.
>
> Below is a portion of my build.xml (target Pdm.war) and the output of
> "ant Pdm.war".
>
> Login.java is my aspect expressed in @AspectJ notation.
>
>
>
> <target name="Pdm.war" depends="prepare">
>
> <!-- compile core concern classes -->
>
> <javac
>
> srcdir ="${dir.dm}/src"
>
> destdir
> ="${dir.build}/java/classes">
>
> <classpath>
>
> <fileset dir="${dir.dm}/lib"
> includes="*.jar"/>
>
> <fileset
> dir="${dir.dm}/lib/crystal">
>
> <include
> name="CrystalCommon2.jar"/>
>
> <include
> name="CrystalReportsRuntime.jar"/>
>
> </fileset>
>
> <fileset
> file="${dir.build}/servlet.jar"/>
>
> </classpath>
>
> </javac>
>
>
>
> <!-- jar the core concern classes -->
>
> <jar
>
> basedir
> ="${dir.build}/java/classes"
>
>
> destfile="${dir.build}/java/DMCoreConcerns.jar"
>
> />
>
>
>
> <!-- compile the aspect classes -->
>
> <javac
>
> srcdir
> ="${dir.dm}/src-aspects-aspectj"
>
> destdir ="${dir.build}/aspects/classes/"
>
> debug ="true"
>>
>
> <classpath>
>
> <fileset
> dir="${log4j.dir}">
>
> <include
> name="log4j-1.2.8.jar"/>
>
> </fileset>
>
> <pathelement
> location="${dir.build}/java/DMCoreConcerns.jar"/>
>
> </classpath>
>
> </javac>
>
> <!-- jar the aspect classes -->
>
> <jar
>
> basedir
> ="${dir.build}/aspects/classes"
>
>
> destfile="${dir.build}/aspects/DMAspects.jar"
>
> />
>
> <!-- Weave the core concern classes with the
> aspects
> -->
>
> <aspectj:iajc
>
> inpath
> ="${dir.build}/java/classes"
>
> aspectPath
> ="${dir.build}/aspects/DMAspects.jar"
>
> destDir
> ="${dir.build}/WEB-INF/classes"
>
> classpath
> ="${aspectj.lib.dir}/aspectjrt.jar"
>
> source ="1.5"
>
> XlintFile
> ="${dir.build}/xlint.properties"
>
> verbose ="true"
>
> showWeaveInfo="true"
>
> />
>
> <!-- Create the war -->
>
> <jar jarfile="${dir.dist}/PdmWar/Pdm.war">
>
> <fileset
> dir="${dir.dm}/WebFiles"/>
>
> <zipfileset dir="${dir.dm}/lib"
> prefix="WEB-INF/lib">
>
> <include
> name="*.jar"/>
>
> <include
> name="*.zip"/>
>
> <exclude
> name="sapjco.*"/>
>
> </zipfileset>
>
> <zipfileset
> dir="${dir.dm}/lib/crystal" prefix="WEB-INF/lib"/>
>
> <zipfileset dir="${dir.dm}/config"
> prefix="WEB-INF/classes"/>
>
> <zipfileset dir="${dir.mappingFiles}"
> prefix="WEB-INF/classes">
>
> <patternset
> refid="bundledMappingFiles"/>
>
> <include
> name="DST*.xsd"/>
>
> </zipfileset>
>
> <zipfileset dir="${dir.dm}/PropertyFile"
> prefix="WEB-INF/classes"/>
>
> <zipfileset dir="${dir.dm}/src"
> prefix="WEB-INF/classes"
> includes="**/*.properties"/>
>
> <fileset dir="${dir.build}"
> includes="WEB-INF/"/>
>
> <fileset
> dir="${dir.build}/aspects" includes="DMAspects.jar"/>
>
> <zipfileset
> dir="${dir.build}/aspects/classes" prefix="WEB-INF/classes"/>
>
> </jar>
>
> </target>
>
> Buildfile: build.xml
>
> [echo] Release build for Windows XP.
>
>
>
> init:
>
>
>
> prepare:
>
>
>
> Pdm.war:
>
> [aspectj:iajc] ajc [-d, C:\DataManager\Trunk\build\WEB-INF\classes,
> -source, 1.5, -Xlintfile, C:\DataManager\Trunk\build\xlint.properties,
> -verbose, -showWeaveInfo, -classpath, C:\Program
> Files\aspectj1.6\lib\aspectjrt.jar,
> -aspectpath, C:\DataManager\Trunk\build\aspects\DMAspects.jar,
> -inpath, C:\DataManager\Trunk\build\java\classes]
>
> [aspectj:iajc] info directory classpath entry does not exist:
> C:\Program Files\Java\jdk1.5.0_20\jre\lib\i18n.jar
>
> [aspectj:iajc] info directory classpath entry does not exist:
> C:\Program Files\Java\jdk1.5.0_20\jre\lib\sunrsasign.jar
>
> [aspectj:iajc] info zipfile classpath entry does not exist: C:\Program
> Files\Java\jdk1.5.0_20\jre\classes
>
> [aspectj:iajc] info Pipelining compilation
>
> [aspectj:iajc] info weaver operating in reweavable mode. Need to
> verify any required types exist.
>
> ...
>
>
>
> [aspectj:iajc] weaveinfo Join point
> 'method-call(com.foo.athens.beans.LoginData
> com.foo.athens.dao.LoginDAO.login(com.foo.athens.beans.LoginData))' in
> Type 'com.foo.athens.action.LoginAction' (no debug info available)
> advised by before advice from 'com.foo.logging.Login'
> (DMAspects.jar!Login.class(from
> Login.java))
>
> [aspectj:iajc] weaveinfo Join point
> 'method-call(com.foo.athens.beans.LoginData
> com.foo.athens.dao.LoginDAO.login(com.foo.athens.beans.LoginData))' in
> Type 'com.foo.athens.action.LoginAction' (no debug info available)
> advised by after advice from 'com.foo.logging.Login'
> (DMAspects.jar!Login.class(from
> Login.java))
>
> [aspectj:iajc] weaveinfo Join point
> 'method-call(com.foo.athens.beans.LoginData
> com.foo.athens.dao.LoginDAO.login(com.foo.athens.beans.LoginData))' in
> Type 'com.foo.athens.action.LoginAction' (no debug info available)
> advised by afterThrowing advice from 'com.foo.logging.Login'
> (DMAspects.jar!Login.class(from Login.java))
>
> [aspectj:iajc] info woven class com.foo.athens.action.LoginAction
> (from
> C:\DataManager\Trunk\build\java\classes\com\foo\athens\action\LoginAct
> ion.class)
>
> ...
>
> [aspectj:iajc] info Compiler took 3813ms
>
> [jar] Building jar:
> C:\DataManager\Trunk\Install\DataManager\PdmWar\Pdm.war
>
>
>
> BUILD SUCCESSFUL
>
> Total time: 9 seconds
>
>
>
>
>
> Thanks,
>
> Roger Huang
>
>
>
> -----Original Message-----
> From: aspectj-users-bounces@xxxxxxxxxxx
> [mailto:aspectj-users-bounces@xxxxxxxxxxx] On Behalf Of Andy Clement
> Sent: Friday, October 30, 2009 5:32 PM
> To: aspectj-users@xxxxxxxxxxx
> Subject: Re: [aspectj-users] FW: NoSuchMethodError: aspectOf()
>
>
>
> Hi Roger,
>
>
>
> Are you definetly including the aspect itself in the call to iajc?
>
> Annotation style aspects (when @Pointcut/etc are used) can be compiled
>
> with javac, but they must be given to the weaver at some point in
>
> order for the missing methods to be added - for example 'aspectOf()'.
>
>
>
> cheers,
>
> Andy
>
>
>
> 2009/10/30 Roger Huang <rhuang@xxxxxxxxxxxxxxx>:
>
>> Any ideas why I am get the NoSuchMethodError below?
>
>>
>
>>
>
>>
>
>> The method specified by the pointcut is in
>
>> com.foo.action.LoginAction.execute.
>
>>
>
>> The aspect is defined in com.foo.logging.Login. (see below)
>
>>
>
>> My code which is being advised does not call the aspect's aspectOf()
>> method.
>
>>
>
>>
>
>>
>
>> I use build-time bytecode weaving using the ant <iajc> task.
>
>>
>
>>
>
>>
>
>> The app is a Struts-based web app.
>
>>
>
>>
>
>>
>
>>
>
>>
>
>> Dev environment:
>
>>
>
>> Java 1.5
>
>>
>
>> Ant 1.7.1
>
>>
>
>> AspectJ 1.6.6
>
>>
>
>>
>
>>
>
>> Thanks,
>
>>
>
>> Roger
>
>>
>
>>
>
>>
>
>>
>
>>
>
>> javax.servlet.ServletException: Servlet execution threw an exception
>
>>
>
>>
>> com.hyperformix.athens.filter.AthensLoginFilter.doFilter(Unknown
>
>> Source)
>
>>
>
>> root cause
>
>>
>
>> java.lang.NoSuchMethodError:
>
>> com.foo.logging.Login.aspectOf()Lcom/foo/logging/Login;
>
>>
>
>> com.foo.action.LoginAction.execute(Unknown Source)
>
>>
>
>>
>
>>
>> org.apache.struts.action.RequestProcessor.processActionPerform(Reques
>> tProcessor.java:421)
>
>>
>
>>
>
>>
>> org.apache.struts.action.RequestProcessor.process(RequestProcessor.ja
>> va:226)
>
>>
>
>>
>
>> org.apache.struts.action.ActionServlet.process(ActionServlet.java:116
>> 4)
>
>>
>
>>
>
>> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
>
>>
>
>> javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
>
>>
>
>> javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
>
>>
>
>> com.foo.athens.filter.AthensLoginFilter.doFilter(Unknown
>> Source)
>
>>
>
>>
>
>>
>
>>
>
>>
>
>>
>
>>
>
>>
>
>>
>
>> @Aspect
>
>>
>
>> public class Login {
>
>>
>
>>
>
>>
>
>> static Logger log =
>> Logger.getLogger(Login.class.getName());
>
>>
>
>> String userName;
>
>>
>
>> String roleName;
>
>>
>
>>
>
>>
>
>> @Pointcut("call (* com.foo.LoginDAO.login(com.foo.
>> Data) )
>
>> && args(data)")
>
>>
>
>> public void login(Data data) {}
>
>>
>
>>
>
>>
>
>> @Before("login(data)")
>
>>
>
>> public void loginBefore(Data data)
>
>>
>
>> {
>
>>
>
>> userName = data.getUserName();
>
>>
>
>> roleName = data.getRoleName();
>
>>
>
>> BasicConfigurator.configure();
>
>>
>
>> log.info("User " + userName + " with
>> role "
>
>> + roleName + " about to login");
>
>>
>
>> }
>
>>
>
>>
>
>>
>
>> }
>
>>
>
>> Roger Huang
>
>>
>
>>
>
>>
>
>> _______________________________________________
>
>> aspectj-users mailing list
>
>> aspectj-users@xxxxxxxxxxx
>
>> https://dev.eclipse.org/mailman/listinfo/aspectj-users
>
>>
>
>>
>
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>
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>
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>
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>
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