Getting maven build errors when trying to run atlassian plugin

[Deleted user]

Hi,

I'm new to Atlassian plugins so I thought I would start by compiling and running the hello world plugin that atlassian provides as a tutorial: https://developer.atlassian.com/server/framework/atlassian-sdk/create-a-helloworld-plugin-project/

I have JDK 9 and MVN 3.3 running. I've followed all the instructions on that tutorial, however, I am presented with the following errors and am unable to understand what is going wrong:

[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[WARNING] The POM for com.atlassian.maven.plugins:maven-confluence-plugin:jar:6.3.15 is missing, no dependency information available
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[ERROR] Unresolveable build extension: Plugin com.atlassian.maven.plugins:maven-confluence-plugin:6.3.15 or one of its dependencies could not be resolved: Failure to find com.atlassian.maven.plugins:maven-confluence-plugin:jar:6.3.15 in https:/
/repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced @
[ERROR] Unknown packaging: atlassian-plugin @ line 19, column 16

 Below is my POM file: 

 <?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.test</groupId>
 <artifactId>myPlugin</artifactId>
 <version>1.0.0-SNAPSHOT</version>

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

 <name>myPlugin</name>
 <description>This is the com.atlassian.test:myPlugin 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>compile</scope>
 </dependency>

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

 <build>
 <plugins>
 <plugin>
 <groupId>com.atlassian.maven.plugins</groupId>
 <artifactId>maven-confluence-plugin</artifactId>
 <version>${amps.version}</version>
 <extensions>true</extensions>
 <configuration>
 <productVersion>${confluence.version}</productVersion>
 <productDataVersion>${confluence.data.version}</productDataVersion>
 <enableQuickReload>true</enableQuickReload>
 <enableFastdev>false</enableFastdev>

 <!-- 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.test.api,
 </Export-Package>

 <!-- Add package import here -->
 <Import-Package>
 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>
 <phase>process-classes</phase>
 </execution>
 </executions>
 <configuration>
 <scannedDependencies>
 <dependency>
 <groupId>com.atlassian.plugin</groupId>
 <artifactId>atlassian-spring-scanner-external-jar</artifactId>
 </dependency>
 </scannedDependencies>
 <verbose>false</verbose>
 </configuration>
 </plugin>
 </plugins>
 </build>

 <properties>
 <confluence.version>6.7.1</confluence.version>
 <confluence.data.version>6.7.1</confluence.data.version>
 <amps.version>6.3.15</amps.version>
 <plugin.testrunner.version>1.2.3</plugin.testrunner.version>
 <atlassian.spring.scanner.version>1.2.13</atlassian.spring.scanner.version>
 <!-- This key is used to keep the consistency between the key in atlassian-plugin.xml and the key to generate bundle. -->
 <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>

 Any help would be appreciated, thanks!

[Minh Tran]

@[deleted] Can you tell me the output of this command atlas-version?

[Deleted user]

ATLAS Version:    6.3.10
ATLAS Home:       C:\Applications\Atlassian\atlassian-plugin-sdk-6.3.10
ATLAS Scripts:    C:\Applications\Atlassian\atlassian-plugin-sdk-6.3.10\bin
ATLAS Maven Home: C:\Applications\Atlassian\atlassian-plugin-sdk-6.3.10\apache-maven-3.2.1
AMPS Version:     6.3.15
--------
Executing: "C:\Applications\Atlassian\atlassian-plugin-sdk-6.3.10\apache-maven-3.2.1\bin\mvn.bat" --version -gs C:\Applications\Atlassian\atlassian-plugin-sdk-
6.3.10\apache-maven-3.2.1/conf/settings.xml
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256M; support was removed in 8.0
Apache Maven 3.2.1 (ea8b2b07643dbb1b84b6d16e1f08391b666bc1e9; 2014-02-14T11:37:52-06:00)
Maven home: C:\Applications\Atlassian\atlassian-plugin-sdk-6.3.10\apache-maven-3.2.1
Java version: 1.8.0_161, vendor: Oracle Corporation
Java home: C:\Program Files\Java\jdk1.8.0_161\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "dos"

 I was able to get past these errors by switching to jdk 1.8 and adding in the maven respository as a plugin repo in the pom file of my project.

[Minh Tran]

Right, the platform now is supported to JDK8. Using JDK9 may cause some weird things

[Manish Sinha]

Hello,

I build the project using: atlas-create-confluence-plugin

as well as importing the project into Eclipse from this link(

Adding a custom action to Confluence) 

https://bitbucket.org/atlassian_tutorial/confluence-custom-action-tutorial/get/master.zip?_ga=2.111115909.1233932827.1534180808-30292495.1533050977

I am getting the same error:

org.apache.maven.project.ProjectBuildingException: Some problems were encountered while processing the POMs:
[ERROR] Unresolveable build extension: Plugin com.atlassian.maven.plugins:maven-confluence-plugin:6.3.15 or one of its dependencies could not be resolved: Failure to find com.atlassian.maven.plugins:maven-confluence-plugin:jar:6.3.15 in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced @
[ERROR] Unknown packaging: atlassian-plugin @ line 19, column 16

I am using Java 8.

Please guide me how to resolve it.

Thanks,

Manish