Develop Reference

The POM for org.picketlink.distribution:picketlink-jbas7:jar:2.8.0. is missing, no dependency information available

I'm trying to run the picketlink quickstarts from:
https://github.com/jboss-developer/jboss-picketlink-quickstarts
More specifically:
https://github.com/jboss-developer/jboss-picketlink-quickstarts/tree/master/picketlink-federation-saml-idp-basic
But in each attempt to install the maven dependencies I get the next error:
Could not find artifact org.picketlink.distribution:picketlink-jbas7:jar:2.8.0.Beta1-SNAPSHOT
Here is the whole log after my $ mvn clean package jboss-as:deploy
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building PicketLink Quickstart: picketlink-federation-saml-idp-basic 2.8.0.Beta1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for org.picketlink.distribution:picketlink-jbas7:jar:2.8.0.Beta1-SNAPSHOT is missing, no dependency information available
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.650 s
[INFO] Finished at: 2015-10-17T01:39:15-05:00
[INFO] Final Memory: 6M/80M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project picketlink-federation-saml-idp-basic: Could not resolve dependencies for project org.picketlink.quickstarts:picketlink-federation-saml-idp-basic:war:2.8.0.Beta1-SNAPSHOT: Could not find artifact org.picketlink.distribution:picketlink-jbas7:jar:2.8.0.Beta1-SNAPSHOT -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
I've seen that you might need to add a settings.xml to your maven folder, but I don't know how to make or what to put in that file.

As you already said, maven is telling you that org.picketlink.distribution:picketlink-jbas7:jar:2.8.0.Beta1-SNAPSHOT dependency is missing and I believe this is because you didn't install it previously.
As I can see jboss-picketlink-quickstarts is a bunch of projects which have a parent pom.xml where you can find your project as a module:
<module>picketlink-federation-saml-idp-basic</module>
So, you have to clone the whole jboss-picketlink-quickstarts project and run mvn install from the parent project.
This will lead you with all dependencies that you will need resolved into your local maven repository (usually ~/.m2/repository).
Try it, it will solve your dependency. Some times you have to call maven with -U to force -SNAPSHOT dependencies.
Hope it helps!

Error running Google App Engine quickstart : POM for com.google.appengine:appengine-maven-plugin:jar:1.9.24 is missing

Any help getting me past this error would be appreciated. Google searches don't seem to turn up any helpful results.
I am on a Macbook Pro running OSX Yosemite and using the Java 1.7.0_71 with Maven 3.3. Maven was installed via HomeBrew.
To get an introduction of Google App Engine, I followed the instructions for the quickstart from https://cloud.google.com/appengine/docs/java/gettingstarted/introduction and reach the page instructions at https://cloud.google.com/appengine/docs/java/gettingstarted/ui_and_code without issue.
After creating the guestbook.jsp file and running mvn appengine:devserver I get the following build failure.
[INFO] Scanning for projects...
[WARNING] The POM for com.google.appengine:appengine-maven-plugin:jar:1.9.24 is missing, no dependency information available
[WARNING] Failed to retrieve plugin descriptor for com.google.appengine:appengine-maven-plugin:1.9.24: Plugin com.google.appengine:appengine-maven-plugin:1.9.24 or one of its dependencies could not be resolved: Failure to find com.google.appengine:appengine-maven-plugin:jar:1.9.24 in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-metadata.xml
Downloading: https://repo.maven.apache.org/maven2/org/codehaus/mojo/maven-metadata.xml
Downloaded: https://repo.maven.apache.org/maven2/org/codehaus/mojo/maven-metadata.xml (20 KB at 4.3 KB/sec)
Downloaded: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-metadata.xml (13 KB at 2.2 KB/sec)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 6.435 s
[INFO] Finished at: 2015-07-22T21:10:29-04:00
[INFO] Final Memory: 10M/245M
[INFO] ------------------------------------------------------------------------
[ERROR] No plugin found for prefix 'appengine' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (/Users/nissandookeran/.m2/repository), central (https://repo.maven.apache.org/maven2)] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/NoPluginFoundForPrefixException

Version 1.9.24 of the Appengine Maven Plugin hasn't been deployed to Maven Central yet, for whatever reason. Probably the easiest thing to do is to open your pom.xml, find the <version> of appengine-maven-plugin that it's using, and make it use 1.9.23 instead of ${appengine.version} or 1.9.24 or whatever it's using.

If it is due to a new version you can try also to run mvn appengine:devserver -U

You have to include the following in the pom file
<plugin>
<groupId>com.google.cloud.tools</groupId>
<artifactId>appengine-maven-plugin</artifactId>
<version>1.9.48</version>
</plugin>

Oracle JDBC 7 as Maven dependency

I'm attempting to add Oracle JDBC to my project as a maven dependency. I've followed multiple tutorials online which suggest various means to add a third party dependency.
I've opted for the local installation method, but like (this person) I'm experiencing issues.
I run the following command to install the jar:
mvn install:install-file -Dfile={lib/ojdbc7.jar} -DgroupId=com.oracle -DartifactId=ojdbc7 -Dversion=12.1.0.1 -Dpackaging=jar
and it succeeds with:
[INFO] --- maven-install-plugin:2.3:install-file (default-cli) # standalone-pom ---
[INFO] Installing /home/<myfolder>/{lib/ojdbc7.jar} to /home/<myname>/.m2/repository/com/oracle/ojdbc7/12.1.0.1/ojdbc7-12.1.0.1.jar
I have then added the following to my pom:
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc7</artifactId>
<version>12.1.0.1</version>
</dependency>
and yet when I compile I get the following:
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.307s
[INFO] Finished at: Sat May 02 20:40:07 NZST 2015
[INFO] Final Memory: 8M/56M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project xxx: Could not resolve dependencies for project com.xxx:xxx:jar:1.0-SNAPSHOT: Failure to find com.oracle:ojdbc7:jar:12.1.0.1 in http://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
I've played around with the -U and -o flags to no avail. I have also tried installing the jar by first cding into the lib directory (as suggested by Raghuram on the other question) with no change.

Solution
Manually place this ojdbc7-12.1.0.1.jar file in your Local Maven/Cache Repository.
Use mvn deploy goal while you are using 3rd Party Jar/Proprietary JAR Files in your Local Maven Repository.

creating new project in java with maven

I wanna create a java project with maven, when I type this command in cmd instead of creating a project it gives some error, I guess it is because of some internet problems but I don't know how to solve it. I don't use any proxy and I've tried this command even when my pc's firewall was turned off.
the command I write in cmd is:
mvn archetype:generate -DgroupId=com.companyname.bank -DartifactId=consumerBanking -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
the rezult is:
[INFO] Scanning for projects...
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.5/maven-clean-plugin-2.5.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-clean-plugin:2.5: Plugin org.apache.maven.plugins:maven-clean-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.5
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-install-plugin/2.4/maven-install-plugin-2.4.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-install-plugin:2.4: Plugin org.apache.maven.plugins:maven-install-plugin:2.4 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-install-plugin:jar:2.4
.
.
.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.167 s
[INFO] Finished at: 2012-05-18T21:09:38-07:00
[INFO] Final Memory: 3M/254M
[INFO] ------------------------------------------------------------------------
[ERROR] No plugin found for prefix 'archetype' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (C:\Users\a\.m2\repository), central (https://repo.maven.apache.org/maven2)] -> [Help 1]
[ERROR]

You're posting this in 2014, but the log says:
[INFO] Finished at: 2012-05-18T21:09:38-07:00
If your local clock is wrong, SSL won't work because the certificate will appear to be invalid, and your connection to https://repo.maven.apache.org/ will fail.
Fix your clock.

Magnolia project archetype can not resolve vaadin dependencies

I'm trying to create a Magnolia project archetype:
I'm running
mvn archetype:generate -DarchetypeCatalog=http://nexus.magnolia-cms.com/content/groups/public/
I choose
5: http://nexus.magnolia-cms.com/content/groups/public/ -> info.magnolia.maven.archetypes:magnolia-project-archetype (An archetype to create a Magnolia project (a parent pom and a webapp))
archetype version I choose 1.1.0
Define value for property 'magnolia-version': 5.0.4
When I run the maven build, the webapp build fails because it cant find some vaadin libraries
[WARNING] The POM for org.vaadin.addons:icepush:jar:0.5.3 is missing, no dependency information available
[WARNING] The POM for org.vaadin.addons:cssinject:jar:2.0.3 is missing, no dependency information available
[WARNING] The POM for org.vaadin.addons:gwt-graphics:jar:1.0.0 is missing, no dependency information available
[WARNING] The POM for org.vaadin.addons:ckeditor-wrapper-for-vaadin:jar:7.8.3 is missing, no dependency information available
[WARNING] The POM for org.vaadin.addon:easyuploads:jar:7.0.0 is missing, no dependency information available
[WARNING] The POM for org.vaadin.addons:refresher:jar:1.2.1.7 is missing, no dependency information available
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] myapp (parent pom) ............................. SUCCESS [0.394s]
[INFO] myapp: webapp .................................. FAILURE [1.305s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.962s
[INFO] Finished at: Wed Sep 18 13:53:45 CEST 2013
[INFO] Final Memory: 7M/121M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project myapp-webapp: Could not resolve dependencies for project myapp-webapp:war:1.0-SNAPSHOT: The following artifacts could not be resolved: org.vaadin.addon:easyuploads:jar:7.0.0, org.vaadin.addons:refresher:jar:1.2.1.7, org.vaadin.addons:cssinject:jar:2.0.3, org.vaadin.addons:icepush:jar:0.5.3, org.vaadin.addons:gwt-graphics:jar:1.0.0, org.vaadin.addons:ckeditor-wrapper-for-vaadin:jar:7.8.3: Failure to find org.vaadin.addon:easyuploads:jar:7.0.0 in http://nexus.magnolia-cms.com/content/groups/public was cached in the local repository, resolution will not be reattempted until the update interval of magnolia.public has elapsed or updates are forced -> [Help 1]
[ERROR]
Do I need to add some maven repository ?

Solved it by adding following repository in my pom.xml
<repository>
<id>vaadin-addons</id>
<url>http://maven.vaadin.com/vaadin-addons</url>
</repository>