java.lang.NoSuchMethodError: org.yaml.snakeyaml.Yaml.loadAs

[dzmitrys-dev]

I tried to use JFairy in my project (TestNG 6.8.5) and got

java.lang.NoSuchMethodError: org.yaml.snakeyaml.Yaml.loadAs(Ljava/io/InputStream;Ljava/lang/Class;)Ljava/lang/Object;
at eu.codearte.fairyland.data.DataMaster.readResources(DataMaster.java:92)
at eu.codearte.fairyland.Fairy.(Fairy.java:35)
at eu.codearte.fairyland.Fairy.create(Fairy.java:72)
at eu.codearte.fairyland.Fairy.create(Fairy.java:61)
at eu.codearte.fairyland.Fairy.create(Fairy.java:50)
at org.stormnetdev.inputdata.testdata.DataProvider.(DataProvider.java:6)
at org.stormnetdev.pageobjects.sampletest.GoogleHomePage.performRandomPersonSearchQuery(GoogleHomePage.java:24)
at org.stormnetdev.tests.sampletest.SampleTest.sampleTest(SampleTest.java:12)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
at org.testng.TestRunner.privateRun(TestRunner.java:767)
at org.testng.TestRunner.run(TestRunner.java:617)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
at org.testng.SuiteRunner.run(SuiteRunner.java:240)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)
at org.testng.TestNG.run(TestNG.java:1057)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175)

[jkubrynski]

Which version of SnakeYaml do you use?

[dzmitrys-dev]

Ive installed jfairy via maven, so it loaded SnakeYaml 1.13, testng 6.8.8 uses SnakeYaml 1.12

Here is my pom fragment

<dependency>
    <groupId>org.jfairy</groupId>
    <artifactId>jfairy</artifactId>
    <version>0.2.4</version>
</dependency>
<dependency>
    <groupId>org.testng</groupId>
    <artifactId>testng</artifactId>
    <version>6.8.8</version>
</dependency>

[jkubrynski]

This method is available in SnakeYAML since version 1.9 - it looks like you have some old version in your classpath. Could you paste effective pom output?

[dzmitrys-dev]

Sure, thank you for fast response

4.0.0
com.stormnetdev
webtestautomationframework
0.0.1-SNAPSHOT


org.jfairy
jfairy
0.2.4
compile


org.testng
testng
6.8.8
compile





false

central
Central Repository
http://repo.maven.apache.org/maven2





never


false

central
Central Repository
http://repo.maven.apache.org/maven2



/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/src
/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/src/main/scripts
/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/src/test/java
/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/target/classes
/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/target/test-classes


/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/src/main/resources




/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/src/test/resources


/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/target
webtestautomationframework-0.0.1-SNAPSHOT



maven-antrun-plugin
1.3


maven-assembly-plugin
2.2-beta-5


maven-dependency-plugin
2.1


maven-release-plugin
2.0





maven-compiler-plugin
3.1


default-compile
compile

compile


1.7
1.7



default-testCompile
test-compile

testCompile


1.7
1.7




1.7
1.7



maven-clean-plugin
2.4.1


default-clean
clean

clean





maven-resources-plugin
2.5


default-testResources
process-test-resources

testResources



default-resources
process-resources

resources





maven-jar-plugin
2.3.2


default-jar
package

jar





maven-surefire-plugin
2.10


default-test
test

test





maven-install-plugin
2.3.1


default-install
install

install





maven-deploy-plugin
2.7


default-deploy
deploy

deploy





maven-site-plugin
3.0


default-site
site

site


/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/target/site


org.apache.maven.plugins
maven-project-info-reports-plugin





default-deploy
site-deploy

deploy


/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/target/site


org.apache.maven.plugins
maven-project-info-reports-plugin






/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/target/site


org.apache.maven.plugins
maven-project-info-reports-plugin







/Users/dzmitrysukhau/Workspace Eclipse/webtestautomationframework/target/site

[jkubrynski]

I need one more thing - output of the
$ mvn dependency:tree

[dzmitrys-dev]

Please note that http://mvnrepository.com/artifact/org.yaml/snakeyaml here 1.13 is listed as the latest version and was downloaded automatically after adding

org.jfairy
jfairy
0.2.4
compile

[dzmitrys-dev]

[INFO] com.stormnetdev:webtestautomationframework:jar:0.0.1-SNAPSHOT
[INFO] +- org.jfairy:jfairy:jar:0.2.4:compile
[INFO] | +- joda-time:joda-time:jar:2.3:compile
[INFO] | +- org.slf4j:slf4j-api:jar:1.7.5:compile
[INFO] | +- com.google.guava:guava:jar:15.0:compile
[INFO] | +- org.yaml:snakeyaml:jar:1.13:compile (version selected from constraint [1.0,2.0))
[INFO] | +- com.google.inject:guice:jar:3.0:compile
[INFO] | | +- javax.inject:javax.inject:jar:1:compile
[INFO] | | - aopalliance:aopalliance:jar:1.0:compile
[INFO] | - org.apache.commons:commons-lang3:jar:3.1:compile
[INFO] - org.testng:testng:jar:6.8.8:compile
[INFO] +- org.beanshell:bsh:jar:2.0b4:compile
[INFO] - com.beust:jcommander:jar:1.27:compile
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS

I hope this would help

[jkubrynski]

It's really strange - version 1.13 of SnakeYaml works great with JFairy so there is probably bug that I cannot see. Could you share this project, that I can build it locally?

[dzmitrys-dev]

https://bitbucket.org/stormcore/webtestautomationframework/commits/all
there are some maven-managed dependencies, project can be run only in eclipse with testng plugin, try org.stormnetdev.tests.sampletest to run as testng test

it fails when I try to execute DataProvider.dataGenerator.company().name() in org.stormnetdev.pageobjects.sampletest.GoogleHomePage which executes

package org.stormnetdev.inputdata.testdata;
import org.jfairy.Fairy;
public class DataProvider {
public static Fairy dataGenerator = Fairy.create();
public static Fairy getGenerator() {
return dataGenerator;
}
}

[jkubrynski]

Hmmm - when you use maven it's good to keep all maven conventions that tests could be executed from Maven, eg:

• production files should be in /src/main/java
• test files should be under /src/test/java

I've checked and everything is ok - probably your eclipse classpath has some incorrect snakeyaml version ( < 1.9) and uses it when running tests.