getClass().getResourceAsStream() in maven project

Question

The pom.xml of my maven project looks as follows:

<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>groupId</groupId>   <artifactId>artifactId</artifactId>   <version>0.0.1-SNAPSHOT</version>    <build>    <sourceDirectory>src/main/java</sourceDirectory>    <resources>     <resource>      <directory>src/main/resources</directory>     </resource>    </resources>   </build> </project> 

In the src/main/resources directory I have a file called test. In the src/main/java directory I have a class that contains the following line:

System.out.println(this.getClass().getResourceAsStream("test")); 

When the line of code is run within Eclipse, I get as output

java.io.BufferedInputStream@1cd2e5f  

When I export the project as .jar and run it I get as output

 null 

Did I configure anything wrong?

Answer 1

Under <build><resources> make sure to have the <include> as below This will explicitly tell maven to fetch these files and include it in the build.

   <build>      <resources>         <resource>             <directory>${basedir}/src/main/resources</directory>             <includes>                 <include>**/*</include>             </includes>         </resource>      </resources>      ...   </build> 

Answer 2

I was facing this same problem.

When you are trying to get the resource like this:
getClass().getResourceAsStream("test")

You are trying to find the resource relative to that package.

To get the resource from the src/main/resources directory, you have to put a slash before the resource name.
getClass().getResourceAsStream("/test")