Why Maven does not work with SurefireExecutionException:> Unable to set parameter in parallel with value

Hi, I'm working on a tutorial here using Windows XP and recent builds.

http://binil.wordpress.com/2006/12/08/automated-smoke-tests-with-selenium-cargo-testng-and-maven/

Can someone please tell me what these tags are.

<parallel>true</parallel>
<threadCount>10</threadCount>

When I use these tags, I get a failure:

-------------------------------------------------------  
T E S T S
------------------------------------------------------- 
Running TestSuite
org.apache.maven.surefire.booter.SurefireExecutionException:
Cannot set option parallel with value
true; nested exception is
java.lang.reflect.InvocationTargetException:
null; nested exception is
org.apache.maven.surefire.util.NestedRuntimeException:
Cannot set option parallel with value
true; nested exception is
java.lang.reflect.InvocationTargetException:
null
org.apache.maven.surefire.util.NestedRuntimeException:
Cannot set option parallel with value
true; nested exception is
java.lang.reflect.InvocationTargetException:
null
java.lang.reflect.InvocationTargetException
 at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)  at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at
java.lang.reflect.Method.invoke(Method.java:585)
 at
org.apache.maven.surefire.testng.conf.AbstractDirectConfigurator$Setter.invoke(AbstractDirectConfigurator.java:117)
 at
org.apache.maven.surefire.testng.conf.AbstractDirectConfigurator.configure(AbstractDirectConfigurator.java:63)
 at
org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:71)
 at
org.apache.maven.surefire.testng.TestNGXmlTestSuite.execute(TestNGXmlTestSuite.java:92)
 at
org.apache.maven.surefire.Surefire.run(Surefire.java:177)
 at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)  at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at
java.lang.reflect.Method.invoke(Method.java:585)
 at
org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:338)
 at
org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:997)
Caused by:
java.lang.NullPointerException  at
org.testng.TestNG.setParallel(TestNG.java:347)
 ... 15 more [INFO]
------------------------------------------------------------------------ 
[ERROR] BUILD FAILURE [INFO]
------------------------------------------------------------------------
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3 answers

From the surefire-plugin document :

parallel ( TestNG). , TestNG , , , , .

threadCount ( TestNG) , . .

, TestNG . surefire :

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-surefire-plugin</artifactId>
  <version>2.4.2</version>
  <configuration>
    <parallel>methods</parallel>
    <threadCount>10</threadCount>
  </configuration>
</plugin>
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true parallel; methods ( )

+1

This can also happen if you are using an older version of TestNG.

Try updating your dependency to TestNG, for example:

<dependency>
  <groupId>org.testng</groupId>
  <artifactId>testng</artifactId>
  <version>5.11</version>
  <classifier>jdk15</classifier>
  <scope>test</scope>
</dependency>

PS: Many people usually use version 5.1.

Greetings

S. Ali Tokmen http://ali.tokmen.com/

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