Problem when creating an all-in-one project in Eclipse

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nettania
Active Member II

Problem when creating an all-in-one project in Eclipse

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Hi,

I am currently trying to get first experiences in developing extensions for alfresco. Meanwhile I already successfully created and Aikau Client Im am stucking in creating an All-In-One project.

I am using Eclipse with OpenJDK 12 on my mac. I used this guide https://docs.alfresco.com/sdk2.0/tasks/alfresco-sdk-rad-eclipse-aio-project.html to create an all-in-one project in eclipse. I I try to run the porject, I did not change anything I get the following error:

Exception in thread "main" java.util.ServiceConfigurationError: sun.util.locale.provider.LocaleDataMetaInfo: Unable to load sun.util.resources.cldr.provider.CLDRLocaleDataMetaInfo
	at java.base/java.util.ServiceLoader.fail(ServiceLoader.java:583)
	at java.base/java.util.ServiceLoader.loadProvider(ServiceLoader.java:855)
	at java.base/java.util.ServiceLoader$ModuleServicesLookupIterator.hasNext(ServiceLoader.java:1077)
	at java.base/java.util.ServiceLoader$2.hasNext(ServiceLoader.java:1300)
	at java.base/java.util.ServiceLoader$3.hasNext(ServiceLoader.java:1385)
	at java.base/sun.util.cldr.CLDRLocaleProviderAdapter$1.run(CLDRLocaleProviderAdapter.java:89)
	at java.base/sun.util.cldr.CLDRLocaleProviderAdapter$1.run(CLDRLocaleProviderAdapter.java:86)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:552)
	at java.base/sun.util.cldr.CLDRLocaleProviderAdapter.<init>(CLDRLocaleProviderAdapter.java:86)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
	at java.base/java.lang.reflect.ReflectAccess.newInstance(ReflectAccess.java:166)
	at java.base/jdk.internal.reflect.ReflectionFactory.newInstance(ReflectionFactory.java:404)
	at java.base/java.lang.Class.newInstance(Class.java:590)
	at java.base/sun.util.locale.provider.LocaleProviderAdapter.forType(LocaleProviderAdapter.java:176)
	at java.base/sun.util.locale.provider.LocaleProviderAdapter.findAdapter(LocaleProviderAdapter.java:279)
	at java.base/sun.util.locale.provider.LocaleProviderAdapter.getAdapter(LocaleProviderAdapter.java:250)
	at java.base/java.util.Calendar.createCalendar(Calendar.java:1692)
	at java.base/java.util.Calendar.getInstance(Calendar.java:1660)
	at java.base/java.text.SimpleDateFormat.initializeCalendar(SimpleDateFormat.java:676)
	at java.base/java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:620)
	at java.base/java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:599)
	at org.apache.maven.cli.CLIReportingUtils.formatTimestamp(CLIReportingUtils.java:157)
	at org.apache.maven.cli.CLIReportingUtils.createMavenVersionString(CLIReportingUtils.java:99)
	at org.apache.maven.cli.MavenCli.populateProperties(MavenCli.java:1676)
	at org.apache.maven.cli.MavenCli.properties(MavenCli.java:596)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:278)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:192)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
	at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1426)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)
Caused by: java.lang.LinkageError: loader 'platform' attempted duplicate class definition for sun.util.resources.cldr.provider.CLDRLocaleDataMetaInfo. (sun.util.resources.cldr.provider.CLDRLocaleDataMetaInfo is in module jdk.localedata of loader 'platform')
	at java.base/java.lang.ClassLoader.defineClass2(Native Method)
	at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1108)
	at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:183)
	at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:761)
	at java.base/jdk.internal.loader.BuiltinClassLoader.findClassInModuleOrNull(BuiltinClassLoader.java:682)
	at java.base/jdk.internal.loader.BuiltinClassLoader.findClass(BuiltinClassLoader.java:563)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:633)
	at java.base/java.lang.Class.forName(Class.java:491)
	at java.base/java.util.ServiceLoader.loadProvider(ServiceLoader.java:853)
	... 37 more

I understand the error but I do not know where I can find the duplicate class definition. This is a base class which is part of Open-JDK and I can´t find the duplicate jar in the project. 

Can someone give me an hint, how to resolve this problem.

Florian

1 Solution

Accepted Solutions
abhinavmishra14
Advanced

Re: Problem when creating an all-in-one project in Eclipse

Jump to solution

The link is pointing to SDK2.x.

If you are using ACS 6.x, you should be generating SDK4.x archetype. 

Generate the new project by following these steps:

1- Open commond prompt and execute following maven command:

mvn archetype:generate -Dfilter=org.alfresco:

or

mvn archetype:generate -Dfilter="org.alfresco:"

2- You will be asked to choose the archetype. SELECT '2'

Choose archetype:
1: remote -> org.alfresco.maven.archetype:activiti-jar-archetype (DEPRECATED - UNSUPPORTED - EXPERIMENTAL)
2: remote -> org.alfresco.maven.archetype:alfresco-allinone-archetype (Sample multi-module project for All-in-One development on the Alfresco platform. Includes modules for Platform/Repository JAR and Share JAR)
3: remote -> org.alfresco.maven.archetype:alfresco-amp-archetype (Sample project with full support for lifecycle and rapid development of Repository AMPs (Alfresco Module Packages))
4: remote -> org.alfresco.maven.archetype:alfresco-platform-jar-archetype (Sample project with full support for lifecycle and rapid development of Platform/Repository JARs and AMPs (Alfresco Module Packages))
5: remote -> org.alfresco.maven.archetype:alfresco-share-jar-archetype (Share project with full support for lifecycle and rapid development of JARs and AMPs (Alfresco Module
        Packages))
6: remote -> org.alfresco.maven.archetype:share-amp-archetype (Share project with full support for lifecycle and rapid development of AMPs (Alfresco Module
        Packages))

3- Select '14' for the SDK version as 4.1.0

Choose org.alfresco.maven.archetype:alfresco-allinone-archetype version:
1: 2.0.0-beta-1
2: 2.0.0-beta-2
3: 2.0.0-beta-3
4: 2.0.0-beta-4
5: 2.0.0
6: 2.1.0
7: 2.1.1
8: 2.2.0
9: 3.0.0
10: 3.0.1
11: 3.1.0
12: 4.0.0-beta-1
13: 4.0.0
14: 4.1.0
Choose a number: 14:

4- Provide 'groupId'

Define value for property 'groupId':

e.g. com.demo.aio.sdk4

5- Provide the 'artifactId' (name of your project)

Define value for property 'artifactId':

e.g.: sdk4-aio-project

6- Provide package:

Define value for property 'package' com.demo.aio.sdk4: :

Keep as is. Press enter.

7- You will be asked to confirm the properties:

Confirm properties configuration:
groupId: com.demo.aio.sdk4
artifactId: sdk4-aio-project
version: 1.0-SNAPSHOT
package: com.demo.aio.sdk4
 Y: :

Press 'Y', if everything looks good. A sample project will be generated. 

8- Import them in eclipse and get started.

Note: SDK4.x is based on docker and docker-compose.

In Addition, check to see if there JDK is properly configured in your eclipse. 

Note: JDK 11 is recommended for SDK4.1.0

Have a look at this doc as well: https://hub.alfresco.com/t5/alfresco-content-services-hub/alfresco-sdk-4-0/ba-p/289257

~Abhinav
(ACSCE, AWS SAA, GAIQ)

View solution in original post

2 Replies
abhinavmishra14
Advanced

Re: Problem when creating an all-in-one project in Eclipse

Jump to solution

The link is pointing to SDK2.x.

If you are using ACS 6.x, you should be generating SDK4.x archetype. 

Generate the new project by following these steps:

1- Open commond prompt and execute following maven command:

mvn archetype:generate -Dfilter=org.alfresco:

or

mvn archetype:generate -Dfilter="org.alfresco:"

2- You will be asked to choose the archetype. SELECT '2'

Choose archetype:
1: remote -> org.alfresco.maven.archetype:activiti-jar-archetype (DEPRECATED - UNSUPPORTED - EXPERIMENTAL)
2: remote -> org.alfresco.maven.archetype:alfresco-allinone-archetype (Sample multi-module project for All-in-One development on the Alfresco platform. Includes modules for Platform/Repository JAR and Share JAR)
3: remote -> org.alfresco.maven.archetype:alfresco-amp-archetype (Sample project with full support for lifecycle and rapid development of Repository AMPs (Alfresco Module Packages))
4: remote -> org.alfresco.maven.archetype:alfresco-platform-jar-archetype (Sample project with full support for lifecycle and rapid development of Platform/Repository JARs and AMPs (Alfresco Module Packages))
5: remote -> org.alfresco.maven.archetype:alfresco-share-jar-archetype (Share project with full support for lifecycle and rapid development of JARs and AMPs (Alfresco Module
        Packages))
6: remote -> org.alfresco.maven.archetype:share-amp-archetype (Share project with full support for lifecycle and rapid development of AMPs (Alfresco Module
        Packages))

3- Select '14' for the SDK version as 4.1.0

Choose org.alfresco.maven.archetype:alfresco-allinone-archetype version:
1: 2.0.0-beta-1
2: 2.0.0-beta-2
3: 2.0.0-beta-3
4: 2.0.0-beta-4
5: 2.0.0
6: 2.1.0
7: 2.1.1
8: 2.2.0
9: 3.0.0
10: 3.0.1
11: 3.1.0
12: 4.0.0-beta-1
13: 4.0.0
14: 4.1.0
Choose a number: 14:

4- Provide 'groupId'

Define value for property 'groupId':

e.g. com.demo.aio.sdk4

5- Provide the 'artifactId' (name of your project)

Define value for property 'artifactId':

e.g.: sdk4-aio-project

6- Provide package:

Define value for property 'package' com.demo.aio.sdk4: :

Keep as is. Press enter.

7- You will be asked to confirm the properties:

Confirm properties configuration:
groupId: com.demo.aio.sdk4
artifactId: sdk4-aio-project
version: 1.0-SNAPSHOT
package: com.demo.aio.sdk4
 Y: :

Press 'Y', if everything looks good. A sample project will be generated. 

8- Import them in eclipse and get started.

Note: SDK4.x is based on docker and docker-compose.

In Addition, check to see if there JDK is properly configured in your eclipse. 

Note: JDK 11 is recommended for SDK4.1.0

Have a look at this doc as well: https://hub.alfresco.com/t5/alfresco-content-services-hub/alfresco-sdk-4-0/ba-p/289257

~Abhinav
(ACSCE, AWS SAA, GAIQ)

View solution in original post

bip1989
Established Member

Re: Problem when creating an all-in-one project in Eclipse

Jump to solution

Had similar issue sometimes back. Thanks for sharing these steps