SAL and AO dependecies

[Peter Faber]

Hi,

I'm trying to set up a plugin for Jira 5.1.8 using both SAL and Active Objects (AO).

Unfortunately, if I try to import the ao service i get following error:

[INFO] [talledLocalContainer] org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ao': FactoryBean threw exception on object creation; nested exception is
 java.lang.LinkageError: loader constraint violation: loader (instance of org/springframework/osgi/context/internal/classloader/ChainedClassLoader) previously initiated loading for a different type with name "com/atlassian/sal/api/transaction/TransactionCallback"

I guess it has to do with OSGi not beeing able to resolve a conflict between SAL and AO.

Here's my atlassian-plugin.xml:

<atlassian-plugin> 
...

    <ao key="ao-module">
        <entity>${project.groupId}.${project.artifactId}.ao.WorklogScheduler</entity>
    </ao>

    <component-import key="translator" interface="com.atlassian.sal.api.message.I18nResolver" />
    <component-import key="ao" name="Active Objects service" interface="com.atlassian.activeobjects.external.ActiveObjects">
        <description>Component to access Active Objects functionality from the plugin</description>
        </component-import>
    <component-import key="applicationProperties" interface="com.atlassian.sal.api.ApplicationProperties" />

</atlassian-plugin>

And my pom.xml:

...

    <dependencies>
        <dependency>
            <groupId>com.atlassian.jira</groupId>
            <artifactId>jira-api</artifactId>
            <version>${jira.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>com.atlassian.activeobjects</groupId>
            <artifactId>activeobjects-plugin</artifactId>
            <version>${ao.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>com.atlassian.sal</groupId>
            <artifactId>sal-api</artifactId>
            <version>${sal.version}</version>
            <scope>provided</scope>
        </dependency>
        
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.10</version>
            <scope>test</scope>
        </dependency>

    <build>
        <plugins>
            <plugin>
                <groupId>com.atlassian.maven.plugins</groupId>
                <artifactId>maven-jira-plugin</artifactId>
                <version>${amps.version}</version>
                <extensions>true</extensions>
                <configuration>
                    <pluginArtifacts>

                        <pluginArtifact>
                            <groupId>com.atlassian.activeobjects</groupId>
                            <artifactId>activeobjects-plugin</artifactId>
                            <version>${ao.version}</version>
                        </pluginArtifact>
                        <pluginArtifact>
                            <groupId>com.atlassian.activeobjects</groupId>
                            <artifactId>activeobjects-jira-spi</artifactId>
                            <version>${ao.version}</version>
                        </pluginArtifact>
                    </pluginArtifacts>
                    <productVersion>${jira.version}</productVersion>
                    <productDataVersion>${jira.version}</productDataVersion>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <properties>
        <jira.version>5.1.8</jira.version>
        <amps.version>4.1.2</amps.version>
        <sal.version>2.6.0</sal.version>
        <ao.version>0.19.7</ao.version>

    </properties>

Any help greatly appreciated!

[Peter Faber · Accepted solution]

Seems that my IDE packaged some dependencies in my plugin.jar which coaused the conflict.

Deleting the target directory and rebuilding from scratch (altlas-run) solved the problem

[ConradR]

atlas-clean is always a good idea for those kind of conflicts! :)

[Anton Kozyr]

I'm experiencing very similar problem but atlas-clean / atlas-run doesn't help.

Here is an error message:

[INFO] [talledLocalContainer] org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ao': FactoryBean threw exception on object creation; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of org/springframework/osgi/context/internal/classloader/ChainedClassLoader) previously initiated loading for a different type with name "net/java/ao/RawEntity"

The bit from pom.xml:

<properties>
        <confluence.version>4.3.7</confluence.version>
        <confluence.data.version>4.3.7</confluence.data.version>
        <amps.version>4.1.6</amps.version>
        <ao.version>0.20</ao.version>
    </properties>

And here is configuration of AO from atlassian-plugin.xml:

<component-import key="ao" name="Active Objects service" interface="com.atlassian.activeobjects.external.ActiveObjects">
		<description>Component to access Active Objects functionality from the plugin</description>
	</component-import>

	<ao key="ao-module">
		<description>Module configuring the Active Object service</description>
		<entity>com.ourcompany.atlassian.OurEntity</entity>
	</ao>

OurEntity implements RawEntity (I think it's where I get this LinkageError), but how else I can implement entity then? I can use Entity, but I need String ID. If I remove both configuration elements from atlassian-plugin.xml, plugin fails to initialise one of components, because of dependency on ActiveObjects bean.

[MaximeC]

It works for me, thank you Lukasz

I added net.java.ao, in my obr generation descriptor (in my pom.xml) and it works.

<instructions>

<Import-Package>
			javax.xml.datatype,
			javax.xml.parsers,
			org.xml.sax,
			org.w3c.dom,
			javax.ws.rs,
			javax.xml.bind,
			net.java.ao,
		*;resolution:=optional,
		</Import-Package>
		<Private-Package>
			com.atlassian.upm.license.storage.lib*
            			</Private-Package>
	(...)

[Łukasz_Krupa]

I face the same problem and the reason was a missing import for net.java.ao package.

You can search MANIFEST.MF for net.java.ao and extend it appropriately to you package version.

[Anton Kozyr]

I'm experiencing very similar problem but atlas-clean / atlas-run doesn't help.

Here is an error message:

[INFO] [talledLocalContainer] org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ao': FactoryBean threw exception on object creation; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of org/springframework/osgi/context/internal/classloader/ChainedClassLoader) previously initiated loading for a different type with name "net/java/ao/RawEntity"

The bit from pom.xml:

<properties>
        <confluence.version>4.3.7</confluence.version>
        <confluence.data.version>4.3.7</confluence.data.version>
        <amps.version>4.1.6</amps.version>
        <ao.version>0.20</ao.version>
    </properties>

And here is configuration of AO from atlassian-plugin.xml:

<component-import key="ao" name="Active Objects service" interface="com.atlassian.activeobjects.external.ActiveObjects">
		<description>Component to access Active Objects functionality from the plugin</description>
	</component-import>

	<ao key="ao-module">
		<description>Module configuring the Active Object service</description>
		<entity>com.ourcompany.atlassian.OurEntity</entity>
	</ao>

OurEntity implements RawEntity (I think it's where I get this LinkageError), but how else I can implement entity then? I can use Entity, but I need String ID. If I remove both configuration elements from atlassian-plugin.xml, plugin fails to initialise one of components, because of dependency on ActiveObjects bean.