maven compilation failure

Question

I have a weird problem - Some class file couldn\'t be read during maven build.

1. I have a project A and project B.
2. Project

Answer 1

It also matters the order of the dependencies. I've had the same issue. And basically I had to put first the scope test and then scope compile dependencies in the pom.xml. If I put first the scope compile and then the scope test it will fail.

Answer 2

I had the same issue (even though the project was compiling/working fine in Eclipse), it was not when using the command line build. The reason was that I wasn't using the correct folder structure for mvn: "src/main/java/com" etc. It is looking at these folders by default (I was using "/scr/main/com" etc. which caused issues).

Answer 3

Try to use:

mvn clean package install

This command should install your artifacts in you local maven repo.

PS: I see that this is an old question, but it may be helpful for somebody in the future.

Answer 4

go to the maven repository and open the jar [tip: you can use winzip] of the source module to verify the specific class present.

In my case it is not. Then I found below.

if you are using the plugin org.apache.felix/maven-bundle-plugin

Make sure source module has export-package defined

example: com.xxx.camel.dao

Answer 5

The error is pretty clear: "cannot find symbol". Some dependencies can't be resolved (you even have the line and column in the trace of the reference that can't be resolved):

V:/dhs_tss_build_view/dhs_tssproject/tss/tsscommon-server/src/main/java/us/mn/state/dhs/tss/common/oblix/da/wsdl/OblixLoginAc
cess.java:[51,60] cannot find symbol
symbol  : class BusinessException
location: class us.mn.state.dhs.tss.common.oblix.da.wsdl.OblixLoginAccess

V:/dhs_tss_build_view/dhs_tssproject/tss/tsscommon-server/src/main/java/us/mn/state/dhs/tss/common/app/da/ldap/BaseLdapImpl.j
ava:[187,14] cannot find symbol
symbol  : class Phone
location: class us.mn.state.dhs.tss.common.app.da.ldap.BaseLdapImpl

V:/dhs_tss_build_view/dhs_tssproject/tss/tsscommon-server/src/main/java/us/mn/state/dhs/tss/common/app/da/ldap/BaseLdapImpl.j
ava:[204,14] cannot find symbol
symbol  : class Phone
location: class us.mn.state.dhs.tss.common.app.da.ldap.BaseLdapImpl

Below a couple of things to verify:

• Check or recheck that these classes are in the jar A (same version as in the pom)
• Check or recheck the import statement in B sources (should match the package of classes in A)
• Check or recheck B's pom.xml and especially the declaration of the dependency on A (it's version)
• Check that the dependency on A is not excluded transitively somewhere in B's pom
• Is A a SNAPSHOT dependency? If no, delete A from your local repository and rebuild

Maven is working fine, you have a mistake somewhere.

Answer 6

I had the same problem...

How to fix - add the following properties in to the pom.xml

<properties>
    <!--  compiler settings -->
    <maven.compiler.source>1.6</maven.compiler.source>
    <maven.compiler.target>1.6</maven.compiler.target>
</properties>