Question

propsdatabase = new Properties();
InputStream dbin = getClass().getResourceAsStream("/properties/database.properties");
propsdatabase.load(dbin);

I am reading my database connection details via a properties file which is named ‘database.properties’ in a folder named ‘properties’. Jus below the root directory.

The code was perfectly working fine when the jar was exported in Eclipse.

But I used Maven project in IntelliJ to get the jar . It throws NUll pointer exception .

Since the Value of dbin is NULL.(I printed and checked also).

I conclude that the path is not recognised to read the file.

Now The things are fine with IntelliJ .

While doing an export as jar in Eclipse the jar although contains propertioes folder IT is not detected. pl help

Answer 1

The reason that getResourceAsStream is returning null is that the /properties/database.properties file is not in the Maven classpath.

Move your properties folder to under /src/main/resources folder and when Maven creates a jar file, the /properties/database.properties resource will be included, and you’ll stop getting the NPE.