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swagger-api / swagger-codegen

swagger-codegen contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition.
http://swagger.io
Apache License 2.0
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[ANY] Maven build fails for client generation and no jar file is created. #8989

Open sergio-alifano opened 5 years ago

sergio-alifano commented 5 years ago
Description

I'm following the Readme file (Getting Started) to generate a PHP client. The following error happens after running mvn clean package

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] swagger-codegen-project 3.0.3 ...................... SUCCESS [  9.209 s]
[INFO] swagger-codegen (core library) ..................... FAILURE [01:08 min]
[INFO] swagger-codegen (executable) ....................... SKIPPED
[INFO] swagger-codegen (maven-plugin) ..................... SKIPPED
[INFO] swagger-generator 3.0.3 ............................ SKIPPED
,
       "summary": "Finds Pets by tags",
       "description": "Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.",
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------

The swagger-codegen-cli.jar file does not get generated, so running the next command:

java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate \
   -i http://petstore.swagger.io/v2/swagger.json \
   -l php \
   -o /var/tmp/php_api_client

produces 

Error: Unable to access jarfile modules/swagger-codegen-cli/target/swagger-codegen-cli.jar
Swagger-codegen version

ANY

Swagger declaration file content or url

ANY

Command line used for generation
git clone https://github.com/swagger-api/swagger-codegen
cd swagger-codegen
mvn clean package
java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate \
   -i http://petstore.swagger.io/v2/swagger.json \
   -l php \
   -o /var/tmp/php_api_client
Related issues/PRs

https://github.com/swagger-api/swagger-codegen/issues/8734

HugoMario commented 5 years ago

hello @sergio-alifano , i just checked this and worked find for me. can you please try again? in case it's still failure, please share more details about the build failure.

sergio-alifano commented 5 years ago

Hi @HugoMario, thanks for checking. Unfortunately, I'm still getting the error. I tried on 2 different machines with the same result (windows10 and MacOS). There's clearly something that I'm missing if this is not happening to you.

Here's the configuration on my Windows10

Apache Maven 3.5.4 (1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T13:33:14-05:00)
Maven home: C:\apache-maven-3.5.4-bin\apache-maven-3.5.4\bin\..
Java version: 10.0.2, vendor: Oracle Corporation, runtime: C:\Program Files\Java\jdk-10.0.2
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 10", version: "10.0", arch: "amd64", family: "windows"

The error that I'm getting seems to be related to a plugin: 

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test (test-testng) on project swagg
er-codegen: There are test failures.

I don't know if it's a configuration related issue, but the same happens on MacOS, so I'm not sure what the problem is.

Maybe there are other steps involved before building the project?

HugoMario commented 5 years ago

@sergio-alifano i tried on a windows machine with java 10 and got your error, i think the java version you're using is no supported by maven-surefire-plugin. i switched to java 8 and worked fine for me.

Can you try with java 8? i think the surefire plugin needs update, but meantime i think you can work with java 8, in case it works for you.

sergio-alifano commented 5 years ago

@HugoMario thanks! Downgrading to Java 8 fixed the issue.

HugoMario commented 5 years ago

i'll continue figuring out how make it works with java 10, don't like the idea to be stuck in one java version.

NicoBoos commented 5 years ago

For Ubuntu 18.04 with openjdk version "10.0.2", I resolved this issue by doing the following steps:

Installing openjdk 8: sudo apt install openjdk-8-jdk

Use the openjdk 8 instead of the default one: JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64/ mvn clean package and it will work!

sptremblay commented 5 years ago

@HugoMario have you found the issue with java 10 and is it fixed ?

tejaskale commented 5 years ago

I get the following errors when trying to build with Java-9:

Running TestSuite
java.lang.RuntimeException: java.io.IOException: Can not attach to current VM
    at mockit.internal.startup.AgentLoader.attachToRunningVM(AgentLoader.java:150)
    at mockit.internal.startup.AgentLoader.loadAgent(AgentLoader.java:60)
    at mockit.internal.startup.Startup.initializeIfPossible(Startup.java:200)
    at mockit.integration.testng.TestNGRunnerDecorator.onExecutionStart(TestNGRunnerDecorator.java:348)
    at org.testng.TestNG.runExecutionListeners(TestNG.java:1055)
    at org.testng.TestNG.run(TestNG.java:1002)
    at org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:132)
    at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.executeMulti(TestNGDirectoryTestSuite.java:193)
    at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.execute(TestNGDirectoryTestSuite.java:94)
    at org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:147)
    at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
    at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
    at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
Caused by: java.io.IOException: Can not attach to current VM
    at jdk.attach/sun.tools.attach.HotSpotVirtualMachine.<init>(HotSpotVirtualMachine.java:75)
    at jdk.attach/sun.tools.attach.VirtualMachineImpl.<init>(VirtualMachineImpl.java:56)
    at jdk.attach/sun.tools.attach.AttachProviderImpl.attachVirtualMachine(AttachProviderImpl.java:58)
    at jdk.attach/com.sun.tools.attach.VirtualMachine.attach(VirtualMachine.java:207)
    at mockit.internal.startup.AgentLoader.attachToRunningVM(AgentLoader.java:144)
    ... 12 more
[main] INFO io.swagge

https://bugs.eclipse.org/bugs/show_bug.cgi?id=534460#c10

strarsis commented 4 years ago

It works with JDK 8 on WSL 1 (Ubuntu):

# apt install -y openjdk-8-jdk
# update-alternatives --config java
# mvn clean package
rhysstubbs commented 4 years ago

It works with JDK 8 on WSL 1 (Ubuntu):

# apt install -y openjdk-8-jdk
# update-alternatives --config java
# mvn clean package

Thank you, I had tried installing Java 8 and changing the JAVA_HOME value but it was the update-alternatives --config java that got it working!

strarsis commented 4 years ago

@rhysstubbs: FWITW, swagger has been superseded by OpenAPI: https://github.com/OpenAPITools/openapi-generator The OpenAPI generator doesn't have to be build like this and can be run from a docker image.

HugoMario commented 4 years ago

@strarsis really?

strarsis commented 4 years ago

@HugoMario: From what I read and know and use, yes.

https://www.blazemeter.com/blog/whats-new-in-swagger-open-api3

OpenAPI 3 is the successor of the widely used OpenAPI/Swagger 2.0 format [...]

moballiachi commented 4 years ago

Hi guys, is ti bit late to comment?? lol ;) ... I had the same error and I was be able to fix with changing java version... some case swagger needs a maven version running over java 8 so, to fix please:

sudo yum install java-1.8.0-devel sudo /usr/sbin/alternatives --config java enter number of java 8 in prompted input sudo /usr/sbin/alternatives --config javac enter number of java 8 in prompted input

[INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] [INFO] swagger-codegen-project ............................ SUCCESS [ 2.274 s] [INFO] swagger-codegen (core library) ..................... SUCCESS [ 55.627 s] [INFO] swagger-codegen (executable) ....................... SUCCESS [ 9.299 s] [INFO] swagger-codegen (maven-plugin) ..................... SUCCESS [ 14.746 s] [INFO] swagger-generator .................................. SUCCESS [ 14.082 s] [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------

check it this [https://docs.aws.amazon.com/neptune/latest/userguide/iam-auth-connect-prerq.html]

enjoy your quarantine