Maven "class file for ... not found" compilation error

Question

I have a Maven project. When I try to build it with Maven, I get this error:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2. 3.2:compile (default-compile) on project myProject: Compilation failure: Compilation failure: [ERROR] ClassA.java:[32,38] cannot access ClassB [ERROR] class file for ClassB not found

ClassB is inside another artifact, and that artifact is in the local repository. In fact, I have no problems building this project with the m2eclipse Maven plugin. It's only when I run mvn compile that the build fails.

What do I have to do to build from the command line?

cyber-monk · Accepted Answer · 2012-03-13 23:46:41Z

5

Eclipse might be bypassing your pom dependencies and 'helping' you by finding a dependency that is not in your pom. Then when you run from command line eclipse isn't there to help anymore. I would double check your pom that you explicitly state dependency. You can also try

mvn dependency:analyze

for more info.

answered Mar 13, 2012 at 23:46

cyber-monk

5,6107 gold badges36 silver badges42 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

cyber-monk Over a year ago

posting your pom.xml file and you src tree would help (linux tree command)

krevelen Over a year ago

I had the same problem after some compile issues upstream during a full mvn clean install. The problem was Eclipse resolves from its own workspace but maven had to work with an incomplete or faulty local repository. Solution: perform a mvn clean install on the full project again (from the command line), which according to m2eclipse will yield no more compile errors upstream

khmarbaise · Accepted Answer · 2012-03-14 17:44:51Z

That looks like you have defined a usual class within the src/test/java instead of the src/main/java area which is sometimes the problem cause the eclipse things behaves a little bit different.

achuan · Accepted Answer · 2012-06-05 03:10:03Z

add to pom.xml:

<build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.6</source> <target>1.6</target> <encoding>UTF-8</encoding> <compilerArguments> <extdirs>src\main\webapp\WEB-INF\lib</extdirs> </compilerArguments> </configuration> </plugin> </plugins> </build>

Collectives™ on Stack Overflow

Maven "class file for ... not found" compilation error

3 Answers 3

2 Comments

Comments

1 Comment

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

Comments

1 Comment

Related