Could not run main class in src/test/java due to ClassNotFoundException

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Could not run main class in src/test/java due to ClassNotFoundException

Baha Baniya
Hi

When I run mvn exec:java : 

I get error:

java.lang.ClassNotFoundException: np.com.bahadur.ExecTest
    at java.net.URLClassLoader.findClass (URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass (ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass (ClassLoader.java:357)
    at org.codehaus.mojo.exec.ExecJavaMojo$1.run (ExecJavaMojo.java:270)
    at java.lang.Thread.run (Thread.java:748)





pom.xml 

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

<modelVersion>4.0.0</modelVersion>
<groupId>replicate</groupId>
<artifactId>exec-sample</artifactId>
<version>1.1.0-SNAPSHOT</version>

<name>Baha Replicate</name>
<description>replicate exec</description>


<build>
<plugins>

<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>


<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.6.0</version>
<executions>
<execution>
<id>generate-test-json-data</id>
<phase>generate-test-resources</phase>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>np.com.bahadur.ExecTest</mainClass>
<classpathScope>test</classpathScope>
</configuration>
</plugin>
</plugins>
</build>

</project>



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Re: Could not run main class in src/test/java due to ClassNotFoundException

Tommy Svensson
Hello Baha,

You need a dependency to a jar containing the `np.com.bahadur.ExecTest` class.

According to: https://www.mojohaus.org/exec-maven-plugin/java-mojo.html the dependency should have scope ’runtime’ unless you set the ’classpathScope’ parameter to something else. 

Your pom has no dependencies at all.

Regards,
Tommy


Från: Baha Baniya [hidden email]
Svara: Baha Baniya [hidden email]
Datum: 12 juli 2018 at 14:24:23
Till: [hidden email] [hidden email]
Ämne:  Could not run main class in src/test/java due to ClassNotFoundException

Hi

When I run mvn exec:java : 

I get error:

java.lang.ClassNotFoundException: np.com.bahadur.ExecTest
    at java.net.URLClassLoader.findClass (URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass (ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass (ClassLoader.java:357)
    at org.codehaus.mojo.exec.ExecJavaMojo$1.run (ExecJavaMojo.java:270)
    at java.lang.Thread.run (Thread.java:748)





pom.xml 

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

<modelVersion>4.0.0</modelVersion>
<groupId>replicate</groupId>
<artifactId>exec-sample</artifactId>
<version>1.1.0-SNAPSHOT</version>

<name>Baha Replicate</name>
<description>replicate exec</description>


<build>
<plugins>

<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>


<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.6.0</version>
<executions>
<execution>
<id>generate-test-json-data</id>
<phase>generate-test-resources</phase>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>np.com.bahadur.ExecTest</mainClass>
<classpathScope>test</classpathScope>
</configuration>
</plugin>
</plugins>
</build>

</project>


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Re: Could not run main class in src/test/java due to ClassNotFoundException

Baha Baniya
Thank you for the Response, Tommy. I already had a classpathScope test as shown in baha_baniya / exec-maven-plugin-sample / source / pom.xml — Bitbucket.

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baha_baniya / exec-maven-plugin-sample / source / pom.xml — Bitbucket


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Just figured out - I have to run class after test-compile phase in which phase test classes are generated. Bound exec:java  to  process-test-classes (previously it was  process-test-resources) and it worked. 




Regards,
Baha 
 

    On Friday, 13 July 2018, 1:25:51 am AEST, Tommy Svensson <[hidden email]> wrote:  
 
 #yiv7925638447 body{font-family:Helvetica, Arial;font-size:13px;}Hello Baha,
You need a dependency to a jar containing the `np.com.bahadur.ExecTest` class.
According to: https://www.mojohaus.org/exec-maven-plugin/java-mojo.html the dependency should have scope ’runtime’ unless you set the ’classpathScope’ parameter to something else. 
Your pom has no dependencies at all.
Regards,Tommy
 
Från: Baha Baniya <[hidden email]>
Svara: Baha Baniya <[hidden email]>
Datum: 12 juli 2018 at 14:24:23
Till: [hidden email] <[hidden email]>
Ämne:  Could not run main class in src/test/java due to ClassNotFoundException

 
Hi
When I run mvn exec:java : 
I get error:
java.lang.ClassNotFoundException: np.com.bahadur.ExecTest    at java.net.URLClassLoader.findClass (URLClassLoader.java:381)    at java.lang.ClassLoader.loadClass (ClassLoader.java:424)    at java.lang.ClassLoader.loadClass (ClassLoader.java:357)    at org.codehaus.mojo.exec.ExecJavaMojo$1.run (ExecJavaMojo.java:270)    at java.lang.Thread.run (Thread.java:748)




pom.xml 
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion> <groupId>replicate</groupId> <artifactId>exec-sample</artifactId> <version>1.1.0-SNAPSHOT</version>
 <name>Baha Replicate</name> <description>replicate exec</description>

 <build> <plugins>
 <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.7.0</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin>

 <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>exec-maven-plugin</artifactId> <version>1.6.0</version> <executions> <execution> <id>generate-test-json-data</id> <phase>generate-test-resources</phase> <goals> <goal>java</goal> </goals> </execution> </executions> <configuration> <mainClass>np.com.bahadur.ExecTest</mainClass> <classpathScope>test</classpathScope> </configuration> </plugin> </plugins> </build>
</project>


project structure 



Full project here baha_baniya / exec-maven-plugin-sample / source / — Bitbucket


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baha_baniya / exec-maven-plugin-sample / source / — Bitbucket


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How to fix this issue?

Regards,
Baha 

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