Maven release process consistently failing : svn: E175013: Access to '/svn/tester/!svn/bc/170' forbidden - maven

Question

I have been banging my head for quite a while now and I have actually learnt lots of this issues on stackoverflow an pretty sure I covered some of the common mistakes(besides,I have done several releases with bitbucket and github) that were starring at me. But still I have not been able to release anything. I feel like it's time to shout for a little help :)
I use a self hosted subversion managed by usvn and a sonatype private nexus repository. I have a multi module maven project arrange in a parent and sub module model.
Below is the snippet of the parent pom that is relevant
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.12</version>
<configuration>
<excludes>
<exclude>**/*ITest.java</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>${project.build.sourceEncoding} </encoding>
<meminitial>128m</meminitial>
<maxmem>512m</maxmem>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.4.3</version>
<configuration>
<encoding>${project.build.sourceEncoding} </encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-release-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<preparationGoals>clean verify -DenableIT=true</preparationGoals>
<tagBase>https://repo.mysvnserver.com/svn/tester/tags</tagBase>
</configuration>
</plugin>
<plugin>
<groupId>com.mysema.maven</groupId>
<artifactId>maven-apt-plugin</artifactId>
<version>1.0</version>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.9</version>
</plugin>
</plugins>
</pluginManagement>
</build>
<distributionManagement>
<repository>
<id>dal</id>
<url>http://nexus.mynexusserver.com/nexus/content/repositories/releases</url>
</repository>
</distributionManagement>
<scm>
<connection>scm:svn:https://username#repo.mysvnserver.com/svn/tester</connection>
<developerConnection>scm:svn:https://username#repo.mysvnserver.com/svn/tester</developerConnection>
<url>https://repo.mysvnserver.com/usvn/project/tester/browser</url>
<tag>tester</tag>
</scm>
Below is my settings.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<settings >
<localRepository>/home/joseph/.m2/repository</localRepository>
<servers>
<server>
<username>username</username>
<password>password</password>
<id>nexus</id>
</server>
<server>
<username>username</username>
<password>password</password>
<id>dal</id>
</server>
</servers>
<mirrors>
<mirror>
<!--This sends everything else to /public -->
<id>nexus</id>
<mirrorOf>central</mirrorOf>
<url>http://nexus.mynexusserver.com/nexus/content/repositories/public/</url>
</mirror>
</mirrors>
<profiles>
<profile>
<id>nexus</id>
<!--Enable snapshots for the built in central repo to direct -->
<!--all requests to nexus via the mirror -->
<repositories>
<repository>
<id>central</id>
<url>http://central</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>dal</id>
<url>http://nexus.mynexusserver.com/nexus/content/repositories/releases</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>central</id>
<url>http://central</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
</profiles>
<activeProfiles>
<!--make the profile active all the time -->
<activeProfile>nexus</activeProfile>
</activeProfiles>
</settings>
Since it would probably too much to put the output here , please find it on paste.ee .
I am more convince this is either configuration issue on subversion side because things looks fairly ok to me. Can anyone point out something I am missing?
Thanks

Answer 1

The SCM part of your POM looks not related to an actual SVN branch (or the trunk) of a project. For the SCM-linked part of the release plugin to work, I guess an SCM configuration closer to what is described in the SCM plugin should be made. A project POM SCM information should describe where to get the source code related to that exact project version, not the root project location.
I guess that without this, SVN can trigger unexpected authorization issues as you are in fact trying to access an URL where you might not have set permissions.