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Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www

Hi so I've been trying to write an admin space screen using the servlet method. the tutorial can be found here at this link https://developer.atlassian.com/server/confluence/writing-a-space-admin-screen/ 

I'm running spring scanner version 2.0.0 and confluence version 7.5.2

However my plugin won't enable.

in my atlassian-confluence.log it says the following:

2020-08-25 12:53:35,304 ERROR [ThreadPoolAsyncTaskExecutor::Thread 28] [internal.dependencies.startup.DependencyWaiterApplicationContextExecutor] fail Unable to create application context for [com.atlassian.yay5.servletonly5], unsatisfied dependencies: none
-- referer: http://ud22:1990/confluence/plugins/servlet/upm | url: /confluence/rest/plugins/1.0/com.atlassian.yay5.servletonly5-key | traceId: 07208aa0fa616b23 | userName: admin
org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.atlassian.com/schema/atlassian-scanner/2]
Offending resource: URL [bundle://301.0:0/META-INF/spring/plugin-context.xml]

below you will also find some other documents that might help.

 pom.xml

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

<modelVersion>4.0.0</modelVersion>
<groupId>com.atlassian.yay5</groupId>
<artifactId>servletonly5</artifactId>
<version>1.0.0-SNAPSHOT</version>

<organization>
<name>Example Company</name>
<url>http://www.example.com/</url>
</organization>

<name>servletonly5</name>
<description>This is the com.atlassian.yay5:servletonly5 plugin for Atlassian Confluence.</description>
<packaging>atlassian-plugin</packaging>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.atlassian.confluence</groupId>
<artifactId>confluence</artifactId>
<version>${confluence.version}</version>
<scope>provided</scope>
</dependency>

<dependency>
<groupId>com.atlassian.plugin</groupId>
<artifactId>atlassian-spring-scanner-annotation</artifactId>
<version>${atlassian.spring.scanner.version}</version>
<scope>provided</scope>
</dependency>

<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
<scope>provided</scope>
</dependency>

<!-- WIRED TEST RUNNER DEPENDENCIES -->
<dependency>
<groupId>com.atlassian.plugins</groupId>
<artifactId>atlassian-plugins-osgi-testrunner</artifactId>
<version>${plugin.testrunner.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>jsr311-api</artifactId>
<version>1.1.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.2.2-atlassian-1</version>
</dependency>

<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.atlassian.sal</groupId>
<artifactId>sal-api</artifactId>
<version>4.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.atlassian.templaterenderer</groupId>
<artifactId>atlassian-template-renderer-api</artifactId>
<version>4.0.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.1.8.RELEASE</version>
<scope>provided</scope>
</dependency>

</dependencies>

<build>
<plugins>
<plugin>
<groupId>com.atlassian.maven.plugins</groupId>
<artifactId>confluence-maven-plugin</artifactId>
<version>${amps.version}</version>
<extensions>true</extensions>
<configuration>
<productVersion>${confluence.version}</productVersion>
<productDataVersion>${confluence.data.version}</productDataVersion>
<enableQuickReload>true</enableQuickReload>
<!--log output-->
<output>${project.build.directory}/confluence/home/logs/atlassian-confluence.log</output>

<!-- See here for an explanation of default instructions: -->
<!-- https://developer.atlassian.com/docs/advanced-topics/configuration-of-instructions-in-atlassian-plugins -->
<instructions>
<Atlassian-Plugin-Key>${atlassian.plugin.key}</Atlassian-Plugin-Key>

<!-- Add package to export here -->
<Export-Package>
com.atlassian.yay5.api,
</Export-Package>

<!-- Add package import here -->
<Import-Package>
com.atlassian.confluence.plugin.descriptor.web.conditions,*;resolution:="optional",
com.atlassian.confluence.content.ui,*;resolution:="optional",
com.atlassian.confluence.themes,*;resolution:="optional",
com.atlassian.confluence.status.service,*;resolution:="optional",
com.atlassian.confluence.security.login,*;resolution:="optional",
com.atlassian.confluence.mail.notification,*;resolution:="optional",
com.atlassian.confluence.labels,*;resolution:="optional",
com.atlassian.confluence.setup.settings,*;resolution:="optional",
com.atlassian.confluence.content.service,*;resolution:="optional",
com.atlassian.confluence.license,*;resolution:="optional",
org.springframework.osgi.*;resolution:="optional",
org.eclipse.gemini.blueprint.*;resolution:="optional",
*
</Import-Package>

<!-- Ensure plugin is spring powered -->
<Spring-Context>*</Spring-Context>
</instructions>
</configuration>
</plugin>

<plugin>
<groupId>com.atlassian.plugin</groupId>
<artifactId>atlassian-spring-scanner-maven-plugin</artifactId>
<version>${atlassian.spring.scanner.version}</version>
<executions>
<execution>
<goals>
<goal>atlassian-spring-scanner</goal>
</goals>
<!-- process-classes seems to be skipped if you are using scala
so perhaps use prepare-package -->
<phase>process-classes</phase>
</execution>
</executions>
<configuration>
<!-- Enable this to get build-time logging of annotations atlassian-spring-scanner-maven-plugin has noticed -->
<verbose>false</verbose>
</configuration>
</plugin>
</plugins>
</build>

<properties>
<confluence.version>7.5.2</confluence.version>
<confluence.data.version>7.5.2</confluence.data.version>
<amps.version>8.0.2</amps.version>
<plugin.testrunner.version>2.0.1</plugin.testrunner.version>
<atlassian.spring.scanner.version>2.0.0</atlassian.spring.scanner.version>
<!-- This property ensures consistency between the key in atlassian-plugin.xml and the OSGi bundle's key. -->
<atlassian.plugin.key>${project.groupId}.${project.artifactId}</atlassian.plugin.key>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>

</project>

plugin-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:atlassian-scanner="http://www.atlassian.com/schema/atlassian-scanner/2"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.atlassian.com/schema/atlassian-scanner/2
http://www.atlassian.com/schema/atlassian-scanner/2/atlassian-scanner.xsd">
<atlassian-scanner:scan-indexes/>
</beans>

 I've followed everything in the atlassian-spring-scanner 2.x read me. I am very confused any help would be greatly appreciated.

1 answer

Hi,

Did you resolve this. I was happily running and testing my plugin, then out of the blue I started to get the same error, I made no changes to the pom or the plugin-conext.xml file.

I have had this working for many years and today it just started to fail, I have no idea why???

Talk about frustrating....

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