Play Framework and Java8 - spring

Question

I have one Java 8 project and this project is a dependency of Play Web app.
Now whenever I try to instantiate classes rom Java 8 project in Play 2.2.3 web app, it gives me following error:
play.PlayExceptions$CompilationException: Compilation error[error: cannot access MongoOperations]
at play.PlayReloader$$anon$1$$anonfun$reload$2$$anonfun$apply$14$$anonfun$apply$16.apply(PlayReloader.scala:304) ~[na:na]
at play.PlayReloader$$anon$1$$anonfun$reload$2$$anonfun$apply$14$$anonfun$apply$16.apply(PlayReloader.scala:304) ~[na:na]
How should let play compile code with Java 8 when I say 'Play "run 8080"' ? Why play isn't able to access the class in Java 8 project ?
FYI: My JAVA_HOME is pointing to JAVA 8.
Here is how my build.sbt looks like.
Note that 'content-aggregator' is my local artifact installed in my local maven repo.
name := "web"
version := "1.0-SNAPSHOT"
resolvers += "Maven central" at "http://repo1.maven.org/maven2"
libraryDependencies ++= Seq(
javaJdbc,
javaEbean,
cache,
"de.undercouch" % "bson4jackson" % "2.1.0" force(),
"com.fasterxml.jackson.core" % "jackson-databind" % "2.1.0" force(),
"com.fasterxml.jackson.core" % "jackson-annotations" % "2.1.0" force(),
"com.fasterxml.jackson.core" % "jackson-core" % "2.1.0" force(),
"org.mongodb" % "mongo-java-driver" % "2.11.3",
"com.techr" % "content-aggregator" % "0.0.1-SNAPSHOT",
"org.jongo" % "jongo" % "1.0",
"uk.co.panaxiom" %% "play-jongo" % "0.6.0-jongo1.0"
)
play.Project.playJavaSettings
In 'content-aggregator'(Java 8) project I am using Spring and have injected beans by autowiring.
MongoOperations is autowired in one of the classes and play is yelling about it.
SpringMongoConfig.java is a class from this project which is marked as #configuration annotation.
Now in Play project I have created config class which imports content-aggregator's config class.
#Configuration
#Import(SpringMongoConfig.class)
public class SpringConfig {
}