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Maven compiling with dependencies not in POM

I'm trying to build a Maven project from work, which has servlet-api 3.1.0 as a provided dependency:
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
But then fails to compile because it cannot find getRequestURL() from javax.servlet.http.HttpServletRequest.
Later, I found out it's using an older version of servlet-api which I never included in my POM:
Downloading from central: https://repo.maven.apache.org/maven2/javax/servlet/servlet-api/2.2/servlet-api-2.2.jar
Downloaded from central: https://repo.maven.apache.org/maven2/javax/servlet/servlet-api/2.2/servlet-api-2.2.jar (41 kB at 63 kB/s)
Maybe that version of servlet-api is comming from a dependency, but I don't know from which one, they are a lot.
How can I override that version with the one I added in the project's POM?

You can try couple of things.
Try mvn dependency:tree to see if it is getting downloaded as part of another dependency.
If you don’t see the dependency getting downloaded as part of another dependency, clean you local repository( it might be inside .m2 directory) and do a clean install of your application.
you can also share your pom.xml so that others can take a look and help.

Import JAR files to spring using maven

I tried to import some JAR files to my maven spring project using maven install plugin.
I placed the JARs in a lib folder in my base directory (where the POM.XML file is) and installed them one by one manually by running mvn install.
My xml looks like:
EDIT:
<dependency>
<groupId>com.keydoxWeb</groupId>
<artifactId>keydox</artifactId>
<version>1.0</version>
<scope>system</scope>
<systemPath>myPath\codecs.jar</systemPath>
</dependency>
<!-- and so on.. -->
Still telling me this error:
"Should use a variable instead of a hard coded path"

To import jars to your local repo, you generally would not have to or want to edit a pom.xml file. Rather there are shell commands that you can use to import the jars to your local maven repo (typically located at ~/.m2). Said commands are described here -- looks like this:
mvn install:install-file -Dfile=<path-to-file> -DgroupId=<group-id> \
-DartifactId=<artifact-id> -Dversion=<version> -Dpackaging=<packaging>
Once you do this, you'll also have to bring the dependencies into your projects pom.xml as explicit dependencies. That will look like this:
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.6.0</version>
</dependency>
...
</dependencies>
Hope it helps!

Usually you do not have to import jars manually - they are installed by maven into local repository. And eclipse needs to know where this maven repository is. You may regenerate eclipse project files via
mvn eclipse:eclipse
(or switch to IntelliJ IDEA which opens maven projects natively)

Maven dependency for Tableau Data Extractor API?

I am trying to create a maven dependency to use the Tableau Data Extractor API. I have followed the suggestions here https://community.tableau.com/thread/172839 as I cant find any official documentation
I download and extract the API here https://www.tableau.com/data-extract-api.
and follow the suggestions
The above post suggests running the following commands
mvn install:install-file -Dfile=jna.jar -DgroupId=com.sun.jna -DartifactId=jna -Dversion=3.5.1 -Dpackaging=jar
mvn install:install-file -Dfile=tableauextract.jar -DgroupId=com.tableausoftware -DartifactId=tableau-extract -Dversion=9.1.0 -Dpackaging=jar
mvn install:install-file -Dfile=tableaucommon.jar -DgroupId=com.tableausoftware -DartifactId=tableau-common -Dversion=9.1.0 -Dpackaging=jar
mvn install:install-file -Dfile=tableauserver.jar -DgroupId=com.tableausoftware -DartifactId=tableau-server -Dversion=9.1.0 -Dpackaging=jar
Then add dependencies to pom.xml:
<dependency>
<groupId>com.tableausoftware</groupId>
<artifactId>tableau-extract</artifactId>
<version>9.1.0</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>com.tableausoftware</groupId>
<artifactId>tableau-common</artifactId>
<version>9.1.0</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>com.tableausoftware</groupId>
<artifactId>tableau-server</artifactId>
<version>9.1.0</version>
<type>jar</type>
</dependency>
I am not very familiar with maven and probably wrong, but i think the API has been updated and now contains only these 2 jars instead of the 4 above
dataextract.jar
jna.jar
I dont see any reference to the tableaucommon or tableauserver jars. Does anyone know if they are still needed, where can I get them?

Missing artifact com.oracle:ojdbc6:jar:11.2.0.3

I am a beginner to Maven project. In my project, I am getting the error Missing artifact com.oracle:ojdbc6:jar:11.2.0.3, even though the jar was present in my repository at the correct folder. Can anyone help with this, please?

Unfortunately, due to the binary license, there is no public repository with the Oracle Driver JAR, so you cannot just add it to your pom file.
You have to add this jar manually:
First, you have to download ojdbc6.jar from here
click jar (2.6 MB) on the middle of the page.
Then put ojdbc6.jar in some folder in your project (let's use lib).
Then you have to add this in your dependencies section in your pom.xml:
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc</artifactId>
<version>11.2.0</version>
<scope>system</scope>
<systemPath>${basedir}/lib/ojdbc6.jar</systemPath>
</dependency>
Another option is to install this jar in your local maven repository:
mvn install:install-file -Dfile=path/to/ojdbc6.jar -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=11.2.0 -Dpackaging=jar
And then you will be able to reference this dependency like this:
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0</version>
</dependency>
You have to choose what's best for you.

Remove the ojdbc6 folder from the .m2 repository completely and then maven update the project in enclipse that solved my problem

<repositories>
<repository>
<id>spring-releases</id>
<url>https://repo.spring.io/libs-release</url>
</repository>
</repositories>
Should solve the issue if you are using spring boot

Once you face the issue . Check in your maven user settings path . This will be a path something like :
C:\Users\ user name\ .m2\repository
Open the location and go to oracle\ojdbc6\11.2.0.3 folder and put the .jar on that location .Return back to eclipse perform maven update and your issue will be gone.

How to add maven dependencies for mahout and hadoop?

I am doing a project that has dependencies on some classes from the mahout and hadoop core jars. I was using javac with the classpath option to include them before, but someone suggested to me that I should use maven to build my project instead. However, I am not sure how to add the dependencies to these jar files which are located in my /usr/local directory.

<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-core</artifactId>
<version>0.20.205.0</version> <!-- or whatever version -->
</dependency>
<dependency>
<groupId>org.apache.mahout</groupId>
<artifactId>mahout-core</artifactId>
<version>0.5</version>
</dependency>

Add this to your pom:
<dependencies>
<dependency>
<groupId>org.apache.mahout</groupId>
<artifactId>mahout-core</artifactId>
<version>0.5</version>
</dependency>
<dependency>
<groupId>some.group</groupId>
<artifactId>hadoop</artifactId>
<version>some.version</version>
</dependency>
</dependencies>
If you have a copy of the jar to be used for say the hadoop example above, execute this command:
mvn install:install-file -Dfile=/some/path/my-hadoop.jar -DgroupId=some.group -DartifactId=hadoop -Dversion=some.version -Dpackaging=jar

Have a look at the maven documentation, especially the part on dependency management. If you want to use Maven you should get to know the basics (one of which is dependency management).
Basially you define your project's dependencies in the <dependencies> section of your pom. Look up maven central (the most common online repository) for the dependencies you want or search for other online repositories that might contain them.
If you can't find them, add the dependencies you want anyways (think of a sensible group id, artifact id and version) and try to compile. Maven will complain about the dependencies missing and provide a basic command to put those dependencies into the local repository. Copy those commands and fill in the appropriate path to the jar file and maven will deploy that dependency in your local repository.
Note that you should first look for the dependencies in an online repository since otherwise you'd have to manually deploy each new version in your local repo.