getResourceAsStream returning null despite called file being in same dir as class getResourceAsStream is called in

Question

I imported an Android sample coded by Amazon involving AWS\'s DynamoDB which I got from here and was presumably written for Eclipse: https://github.com/awslabs/aws-sdk-andro

Answer 1

For up to a day I was struggling with this as well. And finally I was able to resolve this very neatly. The problem is not in the JAVA but in the all project structure. E.g. in Android Studio the whole project is under src/main/java whereas main is a flavour of the project. So if you've file(-s) to read from in source's package (e.g.) com/my/example/app you have to edit the build.gradle file for read (clazz.getResourceAsStream(file)) to work properly. I.e. under android define sourceSets like this:

android {
    /* ... Your stuff ... */

    sourceSets {
        // Lets have two flavours to make it more clear
        main {
            resources.srcDirs = ['src/main/java']
        }

        flavourFoo {
            resources.srcDirs = ['src/flavourFoo/java']
        }
    }
}

Hope this helps!

Answer 2

Created a dir called resources under /src/main/ and placed AwsCredentials.properties there and used

properties.load( PropertyLoader.class.getClassLoader().getResourceAsStream( "AwsCredentials.properties" ) );

instead of

properties.load( this.getClass().getResourceAsStream("AwsCredentials.properties" ) );

Not as elegant as I would like, but it works.