topic Re: Alfresco SDK 4.0 build issue on Open JDK 11 in Alfresco Forum

Alfresco SDK 4.0 build issue on Open JDK 11

nikhilesh_s1vak — Wed, 27 Jan 2021 07:23:34 GMT

I have been trying to set up the development environment in Alfresco SDK 4.0 with Open JDK 11. I have downloaded the all in one project as mentioned in the documentation and even referred jeff pott's material (https://ecmarchitect.com/alfresco-developer-series-tutorials/maven-sdk/tutorial/tutorial.html#alfresco-maven-sdk).

I have applied enterprise license and able to start and test the application. But when i put my customized code in the project structure i faced lot of compilation issues which i have fixed eventaully. But there are few stubborn issues which are related Java modules are giving me a tough time.

Below issues are failing the build.

The package com.xxxx.xxxx.entities is accessible from more than one module: <unnamed>, xxxx.alfresco ( In imports declaration)

The package com.com.xxxx.xxxx.entities conflicts with a package accessible from another module: xxxx.alfresco (In Package declration)

I have understood that this issue is related to JDK modules and fixed it by excluding the unnecessary jar in the pom.xm (for 3rd party jars such as xml and w3c). But the above problems arises when i try to build my customized code.

Below is my development environment i have used:

Alfresco/SDK Version: 6.2 Enterprise/ SDK 4.0
Eclipse Version : 4.18
Java Version : Open JDK 11.0.1
Maven Version : Apache Maven 3.6.3

Re: Alfresco SDK 4.0 build issue on Open JDK 11

EddieMay — Wed, 27 Jan 2021 10:50:02 GMT

Hi @nikhilesh_s1vak

Can I just check which version of Alfresco you are using - is it 6.0 (as tagged) or 6.2 (as mentioned in your dev environment description)?

Thanks,

Re: Alfresco SDK 4.0 build issue on Open JDK 11

nikhilesh_s1vak — Wed, 27 Jan 2021 10:57:02 GMT

Thanks EddieMay for the response. It is 6.2 enterprise.

Re: Alfresco SDK 4.0 build issue on Open JDK 11

andrealigios — Wed, 27 Jan 2021 11:47:23 GMT

Hello @nikhilesh_s1vak ,

I think you might have been fooled by your IDE,
as described here: https://stackoverflow.com/a/55572922/1654265

I would try:

running it from the CLI
then fixing Eclipse with the ModulePath/ClassPath workarounds described in the answer above
eventually, running it from another IDE like IntelliJ CE, probably more JPMS-friendly

Hope that helps

Re: Alfresco SDK 4.0 build issue on Open JDK 11

nikhilesh_s1vak — Thu, 28 Jan 2021 10:02:22 GMT

Hello @andrealigios, Thanks for the response. I have referred the above link and tried to run it from CLI also but the build fails throwing the compilation errors.

I resolved the similar issue with 3rd party Jars (example: xml api) but this happens with alfresco.reposiotry and alfresco.data.model.api jars.

Re: Alfresco SDK 4.0 build issue on Open JDK 11

andrealigios — Thu, 28 Jan 2021 22:58:31 GMT

Hi @nikhilesh_s1vak,
let's take a step back and try as follows (all from the CLI):

```
java -version > output.txt
```
```
mvn -version >> output.txt
```

git clone https://github.com/Alfresco/alfresco-sdk.git sdk-4.2

or (if you want to use SSH instead of HTTPS):

git clone git@github.com:Alfresco/alfresco-sdk.git sdk-4.2

cd sdk-4.2
mvn clean install -Pmaven.test.skip=true
mvn archetype:generate -Dfilter=org.alfresco:

Answer to the questions (eg. "2" - All-In-One Archetype, "15" - SDK 4.2.0, and then proper groupId and artifactId), apply the license properly, etc.

Do what's described in the Working with Enterprise guide, hence turn your generated project's pom.xml into:

<alfresco.bomDependencyArtifactId>acs-packaging</alfresco.bomDependencyArtifactId>

<docker.acs.image>quay.io/alfresco/alfresco-content-repository</docker.acs.image>

<alfresco.platform.version>6.2.2.10</alfresco.platform.version>
<alfresco.share.version>6.2.2.2</alfresco.share.version> 

<keystore.settings></keystore.settings>

Add your custom code, then run it by appending:
```
>> output.txt
```
at the end of the command.

If the problem is still there at this point, please post here the output.txt file so we can have a look at it.

If instead the problem is gone, then the culprit was likely a dirty cache or the fact that the right version of the SDK to use today is 4.1 or 4.2.

Hope that helps

Re: Alfresco SDK 4.0 build issue on Open JDK 11

nikhilesh_s1vak — Mon, 01 Feb 2021 16:47:08 GMT

Hi @andrealigios,

I have tried the below steps but faced issues while executing them.

Command: java -version > output.txt

Java version is not captured in the ouptu.txt

Command: mvn clean install -Penterprise-62-tests >> output.txt

This command doesn't capture anything to output.txt file

Command: mvn archetype:generate -DarchetypeCatalog=local >> output.txt

This command never excutes and nothing shows up in the CLI (waits indefinitely)

I have removed the file output from the above command and executed only the below part

Command: mvn archetype:generate -DarchetypeCatalog=local

This is not taking any input and asking the same question again as below:
Choose archetype:
Your filter doesn't match any archetype (hint: enter to return to initial list)
Choose a number or apply filter (format: [groupId:]artifactId, case sensitive contains): :

Please guide me where i am going wrong.

Re: Alfresco SDK 4.0 build issue on Open JDK 11

andrealigios — Tue, 02 Feb 2021 16:07:34 GMT

Which OS are you on? Which CLI are you using?

What does it mean that it doesn't capture the ouptut in the output.txt file? That you see the output but the file remains empty, that the file is not even created, or that you don't even see the output of those commands?
Do you have write permission on that folder? On Linux & Mac you can do:

>> ~/output.txt

to create the file in your user's home, where you definitely have write permissions.

Please, ensure you've followed all the steps above (especially the git clone) and then describe more deeply what happens next, thank you.

Re: Alfresco SDK 4.0 build issue on Open JDK 11

nikhilesh_s1vak — Wed, 03 Feb 2021 11:49:17 GMT

Hi @andrealigios ,

Which OS are you on? Which CLI are you using?

I am on Windows 10 Pro and using Window Command prompt(cmd.exe)

The file(output.txt) is created but the file remains empty. I see output of commands on the console but the file is empty. The only information i could see in the file is the maven version output (mvn -version >> output.txt) .

The git clone is successful but executing the below mentioned command doesn't show anything on the console.

mvn clean install -Penterprise-62-tests >> output.txt

So i have removed the output.txt from the above command and executed the command (mvn clean install -Penterprise-62-tests) which gave me 401 unauthorized exception. I fixed that by keeping an entry in the settings.xml and executed the same command again which downloads all the dependencies.

I have generated the all-in-one archetype as well without writing the resonse to output.txt file. But when i try to write the response to output.txt file, console doesn't show anything and the file remains empty.

Re: Alfresco SDK 4.0 build issue on Open JDK 11

andrealigios — Wed, 03 Feb 2021 14:14:49 GMT

Can you please try running the Command Prompt as an Administrator?
To do that, Right Click on the Command Prompt icon, then select Run as administrator:

If it doesn't work, can you try:
```
dir > test.txt
```
and see if it works?
If it still doesn't work, can you please try running it from Powershell?
Apart from creating or not the output.txt file, can you try adding your custom code to this newly created all-in-one SDK-4.1 project, and see if you get the same error as before?

About the repository in the settings.xml you're right, for the Enterprise version it is needed.
I'll ensure we'll document it better if it's not already so.

Re: Alfresco SDK 4.0 build issue on Open JDK 11

nikhilesh_s1vak — Wed, 03 Feb 2021 14:44:05 GMT

Hi @andrealigios,

Thanks for the swift response. Please find below inline comments for your questitons.

Can you please try running the Command Prompt as an Administrator?
To do that, Right Click on the Command Prompt icon, then select Run as administrator:
- Yes, i ran the command prompt as an administrator
If it doesn't work, can you try: dir > test.txt and see if it works?
- It works and the dir info is written to the file.
- But when i executed the java -version > test.txt, the file remains empty.
If it still doesn't work, can you please try running it from Powershell?
- Yeah i have tried in powershell but the result is same.
Apart from creating or not the output.txt file, can you try adding your custom code to this newly created all-in-one SDK-4.1 project, and see if you get the same error as before?
- Sure i will do it and let you know the result.

Re: Alfresco SDK 4.0 build issue on Open JDK 11

andrealigios — Wed, 03 Feb 2021 15:16:33 GMT

What if you do:

"java -version" > test.txt

?

Unluckily, I've no Windows here and cannot try it myself, but I suspect it's something like that...

Re: Alfresco SDK 4.0 build issue on Open JDK 11

nikhilesh_s1vak — Thu, 04 Feb 2021 06:01:41 GMT

The command supposed to be as below:

java -version 2>output.txt

Re: Alfresco SDK 4.0 build issue on Open JDK 11

nikhilesh_s1vak — Thu, 04 Feb 2021 15:17:10 GMT

Hi @andrealigios ,

The build was successfull with all in one archetype though i had issues with integration-tests. I have applied the enterprise license and verified the application.

But when i run after adding the custom code the build fails throwing compilation errors. I am trying to import the project to Eclipse to understand the errors. But i think those issues are mostly the same issues which i was facing earlier.

But i will update you soon once the import is successful. Kindly let me know how can i upload the output.txt file here?

Re: Alfresco SDK 4.0 build issue on Open JDK 11

andrealigios — Thu, 04 Feb 2021 17:41:23 GMT

You can use a service like https://pastebin.com/ , or even paste its content here in a code block, as you prefer.

Re: Alfresco SDK 4.0 build issue on Open JDK 11

nikhilesh_s1vak — Fri, 05 Feb 2021 07:12:43 GMT

Hi @andrealigios

Please find the below pastebin links of the output.txt response.

Before adding the custom code:

https://pastebin.com/8gMdbDHR

After adding the custom code:

https://pastebin.com/duhD0C9t

Re: Alfresco SDK 4.0 build issue on Open JDK 11

nikhilesh_s1vak — Tue, 09 Feb 2021 05:24:53 GMT

Hi @andrealigios ,

Did you get a chance to look into it?

Re: Alfresco SDK 4.0 build issue on Open JDK 11

andrealigios — Tue, 09 Feb 2021 10:20:30 GMT

Hi @nikhilesh_s1vak , yes I've had a look at it on Friday but then got very busy with the release of the new Alfresco SDK 4.2, which is almost ready.

Can you please tell me the exact version of Platform/Repo you're using (6.2.x.x)?

In Q4 2020, the Alfresco Platform has undergone a major structural refactoring, and your code might need to be revised in order to work against versions newer than November 2020.

Please provide me with this information, I'll have a look again at your log ASAP.

Re: Alfresco SDK 4.0 build issue on Open JDK 11

nikhilesh_s1vak — Tue, 09 Feb 2021 11:34:01 GMT

Hi @andrealigios

We are using Alfresco enterprise 6.2.0 version.

Re: Alfresco SDK 4.0 build issue on Open JDK 11

andrealigios — Wed, 10 Feb 2021 09:28:26 GMT

I see your custom code is quite big since by default it compiles 128 files:

[INFO] Compiling 128 source files to C:\Nikhilesh\Work\Alfresco\alfresco 6.2\sdk-4.1\alfsdk41\alfsdk41-platform\target\classes

Unless the code is all related to a single functionality, I suggest you (as a golden rule) split it into smaller parts and start adding them one by one, testing when it stops working.

That said, the "Cannot find Symbol" error has several possible causes, but since we're talking about migrating from Java 8 or earlier to Java 9 or higher, which is where JPMS kicked in, you must probably just include a few libraries (and eventually refactor the imports with the help of your IDE, if they're changed) in the pom.xml.

Libraries that were included by default before and are not in the JDK anymore now.

For example, it happened to Java EE, and now if you need "javax" components you need to import them, eg.:

    <artifactId>javax.annotation-api</artifactId>

which in modern Java is not available by default.

While Maven simply complains, your IDE should also help you identify immediately what the problem is.

Please ensure that Eclipse (or IntelliJ CE) is properly configured to compile your project against Java 11 and not other versions, then take a look at all the red flags it should raise.

At that point, it should really be a matter of identifying where the missing classes are gone in JDK11, and how to bring them back (likely by declaring them explicitly in pom.xml)

Please let me know if it helped.