ninja-core/src/main/java/ninja/AssetsController.java
private String assetsDirInDevModeWithoutTrailingSlash() {
        String srcDir  = System.
                getProperty("user.dir")
                + File.separator
                + "src"
                + File.separator
                + "main"
                + File.separator
                + "java";
        return srcDir + File.separator + ASSETS_DIR;
    }
private String assetsDirInDevModeWithoutTrailingSlash() {
        String srcDir  = System.
                getProperty("user.dir")
                + File.separator
                + "src"
                + File.separator
                + "main"
                + File.separator
                + "java";
        return srcDir + File.separator + ASSETS_DIR;
    }
Used in dev mode: Streaming directly from src dir without jetty reload.