also tried with just released maven 3.6.0 - same behavior. On 11/1/2018 9:34 AM, Marshall Schor wrote: > Hi, > > I can get parent pom relative path to work from a top level pom referencing a > subfolder at the 1st level. > > But it fails for me when the top level includes a <module> sub project > contained > in another 1st level folder next to the parent pom's folder, where that > project's pom references the parent-pom using ../parent/pom.xml. > > I include here a trivial example, with the folder structure and the poms. You > can see the failure by typing mvn help:effective-pom after cd'ing to the top > project's folder. > > Here's the folder structure: > mvntst <- top folder > parent <- subfolder having parent pom > subproj <- subfolder having a sub project > > Using maven version 3.5.4 (current), running on Windows 10, with Java 8 > > The three poms: > > in mvntst folder (the top level folder) > > <?xml version="1.0" encoding="UTF-8"?> > <project xmlns="http://maven.apache.org/POM/4.0.0"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 > http://maven.apache.org/xsd/maven-4.0.0.xsd";> > <modelVersion>4.0.0</modelVersion> > <groupId>mvntst</groupId> > <artifactId>top</artifactId> > <packaging>pom</packaging> > <parent> > <groupId>mvntst</groupId> > <artifactId>parent</artifactId> > <version>1.0.0</version> > <relativePath>parent/pom.xml</relativePath> <!-- works, finds the > parent --> > </parent> > <modules> > <module>subproj</module> > </modules> > </project> > > in parent subfolder: > > <?xml version="1.0" encoding="UTF-8"?> > <project xmlns="http://maven.apache.org/POM/4.0.0"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 > http://maven.apache.org/xsd/maven-4.0.0.xsd";> > <modelVersion>4.0.0</modelVersion> > <groupId>mvntst</groupId> > <artifactId>parent</artifactId> > <version>1.0.0</version> > <packaging>pom</packaging> > </project> > > in subproj subfolder: > > <?xml version="1.0" encoding="UTF-8"?> > <project xmlns="http://maven.apache.org/POM/4.0.0"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 > http://maven.apache.org/xsd/maven-4.0.0.xsd";> > <modelVersion>4.0.0</modelVersion> > <groupId>mvntst</groupId> > <artifactId>subproj</artifactId> > <parent> > <groupId>mvntst</groupId> > <artifactId>parent</artifactId> > <version>1.0.0</version> > <relativePath>../parent/pom.xml</relativePath> <!-- fails --> > </parent> > </project> > > In doing various tests: if the top pom is missing its relative-path, you get > an > expected > Non-resolvable parent POM for mvntst:top:[unknown-version]: Failure to find > mvntst:parent:pom:1.0.0 > > putting in the relative-path into the top fixes this, and results in finding > the > parent for the top level. > If you don't have a <modules> section in the top level, the mvn > help:effective-pom works OK. > > Putting in the <modules> section gives the error: > Non-resolvable parent POM for mvntst:subproj:[unknown-version]: Failure to > find > mvntst:parent:pom:1.0.0 > > Adding the <version> to the artifact IDs for the top and subproj doesn't help, > except to change the error message to include the version instead of > [unknown-version] > > Any idea why relative-path works for the top level pom referencing a direct > subfolder, but the subproject's reference fails? Is this not supported by > maven? > > Thanks. -Marshall > > P.S., a great improvement for maven would be to have the error message for > this > which says: > 'parent.relativePath' points at wrong local POM > be augmented to say why. For example, > the relative path resolved to xxxxxxxx, and there was no file there, or > the relative path resolved to xxxxxxxx, and that file was not a "pom" xml > file, or > the relative path resolved to xxxxxxxx, and the pom found there didn't pass > this validation test (saying what exactly failed) > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@maven.apache.org > For additional commands, e-mail: users-h...@maven.apache.org > >
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