Maven Version range and Nexus 3.2 fails

[Henrik Lynggaard Hansen]

Hi

We are trying to build a Maven project that specifies its dependencies with maven ranges.

One of its dependencies is like this:

<dependency>

<groupId>com.oracle.servicebus</groupId>

<artifactId>client</artifactId>

<version>[12.1.3,12.1.4)</version>

<type>pom</type>

</dependency>

which as far as I can tell is a legal version range, however when the request hits nexus it fails with an internal server error

Caused by: java.net.URISyntaxException: Illegal character in path at index 30: /com/oracle/servicebus/client/[12.2.1,12.2.2)/client-[12.2.1,12.2.2).pom

at java.net.URI$Parser.fail(URI.java:2848) [na:1.8.0_112]

at java.net.URI$Parser.checkChars(URI.java:3021) [na:1.8.0_112]

at java.net.URI$Parser.parseHierarchical(URI.java:3105) [na:1.8.0_112]

at java.net.URI$Parser.parse(URI.java:3063) [na:1.8.0_112]

at java.net.URI.<init>(URI.java:588) [na:1.8.0_112]

at java.net.URI.create(URI.java:850) [na:1.8.0_112]

This is despite the URL being requested has URL encoded [ to %5B

I am not sure if this is a bug in Maven, Nexus or the pom.xml as I don't know which part actually does the resolving of version range

Can someone help with clues

Best regards

Henrik Lynggaard

[Peter Lynch]

This is more likely a Maven plugin problem not written to expect version ranges. In order to tell you would need to give someone the entire error message that maven fails with. I suggest posting your question with more detail on the Apache Maven users list or the plugin authors issue tracker.

A Maven version that supports versions ranges will not send a remote request to a remote server that includes a version range in the URL - therefore this can't be a Nexus problem.

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[Henrik Lynggaard Hansen]

Hi

I thought something as central as version resolution and range handling was central to maven, sounds a bit strange that the individual plugin needs to handle that?

I don't have the error message right at this moment, but I can tell you that it tries to download the URL:

http://files.cdpipeline.example.com:10002/repository/maven-group-public/com/oracle/servicebus/client/%5B12.2.1,12.2.2)/client-%5B12.2.1,12.2.2).pom

which results in a 500 Internal server error.

Doing the same in a browser gives:

"javax.servlet.ServletException: java.lang.IllegalArgumentException: Illegal character in path at index 30: /com/oracle/servicebus/client/[12.2.1,12.2.2)/client-[12.2.1,12.2.2).pom"

The thing we are trying to do is run dependency:go-offline in order to ensure all dependencies are available locally ref:https://maven.apache.org/plugins/maven-dependency-plugin/go-offline-mojo.html

I would have assumed this to be a fairly core plugin and certainly for it to understand ranges but then again I would expect that to be core maven

Best regards

Henrik

[Rich Seddon]

Maven doesn't send the version range over to a remote repository.  That's a violation of the maven repository protocol.  The problem is in your build, it should be resolving the version range by downloading the appropriate maven-metadata.xml files, and then requesting a specific version from Nexus.

This is not a problem in Nexus.

Regards,

Rich

On Tuesday, October 17, 2017 at 6:29:16 PM UTC-5, Henrik Lynggaard Hansen wrote:

Hi

I thought something as central as version resolution and range handling was central to maven, sounds a bit strange that the individual plugin needs to handle that?

I don't have the error message right at this moment, but I can tell you that it tries to download the URL:

http://files.cdpipeline.example.com:10002/repository/maven-group-public/com/oracle/servicebus/client/%5B12.2.1,12.2.2)/client-%5B12.2.1,12.2.2).pom

which results in a 500 Internal server error.

Doing the same in a browser gives:

"javax.servlet.ServletException: java.lang.IllegalArgumentException: Illegal character in path at index 30: /com/oracle/servicebus/client/[12.2.1,12.2.2)/client-[12.2.1,12.2.2).pom"

The thing we are trying to do is run dependency:go-offline in order to ensure all dependencies are available locally ref:https://maven.apache.org/plugins/maven-dependency-plugin/go-offline-mojo.html

I would have assumed this to be a fairly core plugin and certainly for it to understand ranges but then again I would expect that to be core maven

Best regards

Henrik

[Brian Fox]

What Rich said..

The maven-metadata.xml files list out the versions of the dependency at hand and then maven will pick a version using an algorithm and then make a request to the repo. Maven was originally built to work against just a dumb http file system so no resolution remotely is done. It's possible that it can't find the maven-metadata.xml file or some other weird bug is causing the resolution to fail to pick a version. I can't ever recall seeing this.

To view this discussion on the web visit https://groups.google.com/a/glists.sonatype.com/d/msgid/nexus-users/d1af226f-42fc-474b-9be3-d7de0cc66de3%40glists.sonatype.com.