maven-dependency-plugin target/classes - Access is denied

Question

I have a multi module project with a parent project A, and two childs project B and C. Project B has a dependency on project C. I use the maven-dependency-plugin to copy the dependencies of B to a lib/ directory in the target/ directory. So, I can use the maven-assembly-plugin to include this lib/ directory in the final zip. The problem is I get the following error when I run mvn clean package on project B:

at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209) ... 19 more

Caused by: java.io.FileNotFoundException: D:\path-to-projects-directory\C\target\classes (Access is denied)

at java.io.FileInputStream.open(Native Method)

at java.io.FileInputStream.(FileInputStream.java:120)

at org.codehaus.plexus.util.io.FileInputStreamFacade.getInputStream(FileInputStreamFacade.java:36)

at org.codehaus.plexus.util.FileUtils.copyStreamToFile(FileUtils.java:1141)

at org.codehaus.plexus.util.FileUtils.copyFile(FileUtils.java:1048)

at org.apache.maven.plugin.dependency.AbstractDependencyMojo.copyFile(AbstractDependencyMojo.java:192) ... 23 more

Someone has an idea?

I've done some research on the web and I found that there is such an issue (see http://jira.codehaus.org/browse/MWAR-192 , that's for the wars but I have the similar problem with JAR). It seems that the target/classes directory of project C can't be accessed to create the C.jar (the C.jar must be included in the lib/ directory of project B).

Thanks

sounds odd, why don't you just state your dependencies in your pom.xml's and let maven do the assembling? — definitely undefinable
– definitely undefinable, Commented Jan 11, 2012 at 22:57
@definitelyundefinable I state the dependencies of project B in the POM of B. But, one of these dependencies is the project C and it must be packaged before to be included in the target/lib/ of B. And, when it tries to create C.jar, it needs to copy the target/classes to the JAR and it seems that target/classes can't be accessed. — manash
– manash, Commented Jan 12, 2012 at 9:34
@Raghuram Outside Eclipse, I need to first deploy project C, but i don't like the fact that I need to deploy all my dependencies (in this case project C only, but may be more) before packaging the dependent project. So, I wanted to use Workspace resolution feature of the Eclipse Maven plugin (m2e). — manash
– manash, Commented Jan 12, 2012 at 9:37

Betlista · Accepted Answer · 2012-10-31 10:36:38Z

4

I just ran into this issue as well using the configuration

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-jar-plugin</artifactId>
    <version>2.3.2</version>
    <configuration>
        <archive>
            <index>true</index>
            <manifest>
                <addClasspath>true</addClasspath>
            </manifest>
            <manifestEntries>
                <mode>development</mode>
                <url>${project.url}</url>
                <key>value</key>
            </manifestEntries>
        </archive>
    </configuration>
    ...
</plugin>

provided from the manifest customization example at http://maven.apache.org/plugins/maven-jar-plugin/examples/manifest-customization.html. I diagnosed it to the <index>true</index> as the problem went away when that part was commented out, and verified that this was an issue for versions 2.3.2, 2.3.1, 2.3, 2.2, 2.1 of the maven jar plugin.

According to the maven plugin jira -- see https://jira.codehaus.org/browse/MJAR-69 -- it's just been fixed

edited Oct 31, 2012 at 10:36

Betlista

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answered Jan 26, 2012 at 11:41

I-Lin Kuo

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1 Comment

manash Over a year ago

This is not the same issue. See issues.sonatype.org/browse/MNGECLIPSE-1224.

David Bradley · Accepted Answer · 2016-12-09 16:16:53Z

1

I just ran across this, the readOnly element apparently can cause an access denied message. The readOnly element is deprecated anyway, but I happened to use it from an older example.

answered Dec 9, 2016 at 16:16

David Bradley

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4b0 · Accepted Answer · 2020-04-20 03:30:11Z

1

I have the same issue.I have solved it in this way:

Right-click on traget folder > Properties > uncheck the Read-only option and tried problem solved.

enter image description here

edited Apr 20, 2020 at 3:30

4b0

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answered Apr 20, 2020 at 3:20

Sri

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Adrian C · Accepted Answer · 2021-08-09 14:33:20Z

0

i tried several things to resolve this problem:

changing permissions on the folder
removing the read-only attribute
deleting the folder from explorer
deleting the folder from elevated command prompt

no success.

Then i rebooted the machine and the target folder was magically gone.

answered Aug 9, 2021 at 14:33

Adrian C

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Pang · Accepted Answer · 2023-12-13 01:55:21Z

0

The issue got resolved for me by just deleting the file from the eclipse problems view.

Attached the screenshot below.

Just right click on the error and click on Delete. This should fix it.

edited Dec 13, 2023 at 1:55

Pang

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answered Jan 18, 2022 at 11:36

Harish Pandalangatt

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