Unable to resolve ${env.HOSTNAME}
---------------------------------
Key: MNG-4202
URL: http://jira.codehaus.org/browse/MNG-4202
Project: Maven 2
Issue Type: Bug
Affects Versions: 2.1.0, 2.0.10, 2.0.9
Environment: Mac OS X _Leopard_ 10.5.7 with JDK 1.5.0_16
CentOS 5.2 with JDK 1.5.0_17 & 1.6.0_12
Reporter: Pete de Zwart
Priority: Critical
Empirical test. Using the following POM, you will be able to resolve the
environment variable {{$FOO}}:
{noformat}
<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/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>test</groupId>
<artifactId>test</artifactId>
<packaging>pom</packaging>
<version>1.1-SNAPSHOT</version>
<modules>
<module>${env.FOO}</module>
</modules>
</project>
{noformat}
If we then assign the value {{BAR}} to {{$FOO}}, we can observer that the
environment has been set in the shell:
{noformat}
pdzw...@fosters:/tmp[18:57:46](1,0)$ export FOO=BAR
pdzw...@fosters:/tmp[18:58:48](1,0)$ echo $FOO
BAR
{noformat}
Now, running {{mvn clean}} using this POM, we expect that an exception will be
thrown regarding {{$PWD/BAR}} not existing:
{noformat}
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error building POM (may not be this project's POM).
Project ID: unknown
Reason: Could not find the model file '/private/tmp/BAR'. for project unknown
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.reactor.MavenExecutionException: Could not find the model file
'/private/tmp/BAR'. for project unknown
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:432)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:300)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:137)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:356)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.project.ProjectBuildingException: Could not find
the model file '/private/tmp/BAR'. for project unknown
at
org.apache.maven.project.DefaultMavenProjectBuilder.readModel(DefaultMavenProjectBuilder.java:1585)
at
org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFileInternal(DefaultMavenProjectBuilder.java:506)
at
org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:200)
at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:632)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:515)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:588)
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:419)
... 11 more
Caused by: java.io.FileNotFoundException: /private/tmp/BAR (No such file or
directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:106)
at
hidden.org.codehaus.plexus.util.xml.XmlReader.<init>(XmlReader.java:124)
at
hidden.org.codehaus.plexus.util.xml.XmlStreamReader.<init>(XmlStreamReader.java:67)
at
hidden.org.codehaus.plexus.util.ReaderFactory.newXmlReader(ReaderFactory.java:113)
at
org.apache.maven.project.DefaultMavenProjectBuilder.readModel(DefaultMavenProjectBuilder.java:1580)
... 17 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Tue Jun 16 18:59:37 EST 2009
[INFO] Final Memory: 1M/3M
[INFO] ------------------------------------------------------------------------
{noformat}
Excellent. Now, try this with {{$env.HOSTNAME}}, here is the POM:
{noformat}
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>test</groupId>
<artifactId>test</artifactId>
<packaging>pom</packaging>
<version>1.1-SNAPSHOT</version>
<modules>
<module>${env.HOSTNAME}</module>
</modules>
</project>
{noformat}
Here is what is currently assigned to {{$HOSTNAME}}:
{noformat}
pdzw...@fosters:/tmp[19:00:10](1,0)$ echo $HOSTNAME
Fosters.sydney.atlassian.com
{noformat}
No, run maven again, and we expect that the directory
{{$PWD/Fosters.sydney.atlassian.com}} does not exist:
{noformat}
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error building POM (may not be this project's POM).
Project ID: unknown
Reason: Could not find the model file '/private/tmp/${env.HOSTNAME}'. for
project unknown
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.reactor.MavenExecutionException: Could not find the model file
'/private/tmp/${env.HOSTNAME}'. for project unknown
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:432)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:300)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:137)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:356)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.project.ProjectBuildingException: Could not find
the model file '/private/tmp/${env.HOSTNAME}'. for project unknown
at
org.apache.maven.project.DefaultMavenProjectBuilder.readModel(DefaultMavenProjectBuilder.java:1585)
at
org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFileInternal(DefaultMavenProjectBuilder.java:506)
at
org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:200)
at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:632)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:515)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:588)
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:419)
... 11 more
Caused by: java.io.FileNotFoundException: /private/tmp/${env.HOSTNAME} (No such
file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:106)
at
hidden.org.codehaus.plexus.util.xml.XmlReader.<init>(XmlReader.java:124)
at
hidden.org.codehaus.plexus.util.xml.XmlStreamReader.<init>(XmlStreamReader.java:67)
at
hidden.org.codehaus.plexus.util.ReaderFactory.newXmlReader(ReaderFactory.java:113)
at
org.apache.maven.project.DefaultMavenProjectBuilder.readModel(DefaultMavenProjectBuilder.java:1580)
... 17 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Tue Jun 16 19:01:25 EST 2009
[INFO] Final Memory: 1M/3M
[INFO] ------------------------------------------------------------------------
{noformat}
OOOOKKKAAAAY..... let's take a closer look at that shall we:
{noformat}
Reason: Could not find the model file '/private/tmp/${env.HOSTNAME}'. for
project unknown
{noformat}
And closer:
{noformat}
'/private/tmp/${env.HOSTNAME}'
{noformat}
Some extra special magic is going on there; I suspect that this specific
environment variable is being filtered out for some reason. So, let's try the
following:
* {{${env.HOSTNAM}}}
{noformat}
pdzw...@fosters:/tmp[19:06:53](1,146)$ cat pom.xml && HOSTNAM=$HOSTNAME mvn
clean
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>test</groupId>
<artifactId>test</artifactId>
<packaging>pom</packaging>
<version>1.1-SNAPSHOT</version>
<modules>
<module>${env.HOSTNAM}</module>
</modules>
</project>
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error building POM (may not be this project's POM).
Project ID: unknown
Reason: Could not find the model file
'/private/tmp/Fosters.sydney.atlassian.com'. for project unknown
...
{noformat}
* {{${env.HOSTNAMEE}}}
{noformat}
pdzw...@fosters:/tmp[19:07:31](1,146)$ cat pom.xml && HOSTNAMEE=$HOSTNAME mvn
clean
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>test</groupId>
<artifactId>test</artifactId>
<packaging>pom</packaging>
<version>1.1-SNAPSHOT</version>
<modules>
<module>${env.HOSTNAMEE}</module>
</modules>
</project>
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error building POM (may not be this project's POM).
Project ID: unknown
Reason: Could not find the model file
'/private/tmp/Fosters.sydney.atlassian.com'. for project unknown
...
{noformat}
* {{${env.HOSTNAMO}}}
{noformat}
pdzw...@fosters:/tmp[19:07:59](1,146)$ cat pom.xml && HOSTNAMO=$HOSTNAME mvn
clean
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>test</groupId>
<artifactId>test</artifactId>
<packaging>pom</packaging>
<version>1.1-SNAPSHOT</version>
<modules>
<module>${env.HOSTNAMO}</module>
</modules>
</project>
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error building POM (may not be this project's POM).
Project ID: unknown
Reason: Could not find the model file
'/private/tmp/Fosters.sydney.atlassian.com'. for project unknown
{noformat}
Thanks for coming in today maven.
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