Preparing to use neo4j bolt with Play Framework - scala

Question

I want to access a Neo4j DB from my Play Framework application in addition to a MySQL DB. The MySQL access is working properly. In preparation to code for accessing Neo4j via Bolt, I have:
Added a reference to the Driver in the project build.sbt:
libraryDependencies ++= Seq(
jdbc,
cache,
ws,
specs2 % Test,
"org.mindrot" % "jbcrypt" % "0.3m",
"mysql" % "mysql-connector-java" % "5.1.38",
"org.neo4j" % "neo4j-bolt" % "3.0.1"
)
and I restarted activator and watched it apparently resolve/retrieve the dependency that I can now find in ~/.ivy2/...
I have also placed a reference to my database in the application.conf as seen in this snippet:
db.default = {
driver: com.mysql.jdbc.Driver
url: "jdbc:mysql://127.0.0.1/borg"
username: "borg"
password: "XXXXX"
}
# Bolt port # defaults to 7687 I hope
db.neo4j = {
driver: org.neo4j.jdbc.Driver
url: "jdbc:neo4j:bolt://neo.myco.com"
username: "neo4j"
password: "XX"
}
I have not yet written any Scala code to attempt accessing the DB. Simply adding this specification to application.conf causes the application to fail when anything is retrieved from the site with messages as seen in the following stacktrace. I note a message about "Driver not found [org.neo4j.jdbc.Driver}]", which curiously has a right brace in a peculiar location. I wonder if that is a red herring. Any insights or experience out there?
CreationException: Unable to create injector, see the following errors:
1) Error in custom provider, Configuration error: Configuration error[Cannot connect to database [neo4j]]
while locating play.api.db.DBApiProvider
while locating play.api.db.DBApi for field
at play.api.db.NamedDatabaseProvider.dbApi(DBModule.scala:80)
while locating play.api.db.NamedDatabaseProvider
at com.google.inject.util.Providers$GuicifiedProviderWithDependencies.initialize(Providers.java:149)
at play.api.db.DBModule$$anonfun$namedDatabaseBindings$1.apply(DBModule.scala:34):
Binding(interface play.api.db.Database qualified with QualifierInstance(#play.db.NamedDatabase(value=default)) to ProviderTarget(play.api.db.NamedDatabaseProvider#746bce08)) (via modules: com.google.inject.util.Modules$OverrideModule -> play.api.inject.guice.GuiceableModuleConversions$$anon$1)
Caused by: Configuration error: Configuration error[Cannot connect to database [neo4j]]
at play.api.Configuration$.configError(Configuration.scala:178)
at play.api.Configuration.reportError(Configuration.scala:829)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:48)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:42)
at scala.collection.immutable.List.foreach(List.scala:381)
at play.api.db.DefaultDBApi.connect(DefaultDBApi.scala:42)
at play.api.db.DBApiProvider.get$lzycompute(DBModule.scala:72)
at play.api.db.DBApiProvider.get(DBModule.scala:62)
at play.api.db.DBApiProvider.get(DBModule.scala:58)
at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81)
at com.google.inject.internal.BoundProviderFactory.provision(BoundProviderFactory.java:72)
at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:61)
at com.google.inject.internal.BoundProviderFactory.get(BoundProviderFactory.java:62)
at com.google.inject.internal.SingleFieldInjector.inject(SingleFieldInjector.java:54)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:132)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:93)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:80)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103)
at com.google.inject.internal.MembersInjectorImpl.injectAndNotify(MembersInjectorImpl.java:80)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:62)
at com.google.inject.internal.InjectorImpl.injectMembers(InjectorImpl.java:984)
at com.google.inject.util.Providers$GuicifiedProviderWithDependencies.initialize(Providers.java:149)
at com.google.inject.util.Providers$GuicifiedProviderWithDependencies$$FastClassByGuice$$2a7177aa.invoke(<generated>)
at com.google.inject.internal.cglib.reflect.$FastMethod.invoke(FastMethod.java:53)
at com.google.inject.internal.SingleMethodInjector$1.invoke(SingleMethodInjector.java:57)
at com.google.inject.internal.SingleMethodInjector.inject(SingleMethodInjector.java:91)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:132)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:93)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:80)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
at com.google.inject.internal.MembersInjectorImpl.injectAndNotify(MembersInjectorImpl.java:80)
at com.google.inject.internal.Initializer$InjectableReference.get(Initializer.java:174)
at com.google.inject.internal.Initializer.injectAll(Initializer.java:108)
at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:174)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:110)
at com.google.inject.Guice.createInjector(Guice.java:96)
at com.google.inject.Guice.createInjector(Guice.java:73)
at com.google.inject.Guice.createInjector(Guice.java:62)
at play.api.inject.guice.GuiceBuilder.injector(GuiceInjectorBuilder.scala:126)
at play.api.inject.guice.GuiceApplicationBuilder.build(GuiceApplicationBuilder.scala:93)
at play.api.inject.guice.GuiceApplicationLoader.load(GuiceApplicationLoader.scala:21)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1$$anonfun$2.apply(DevServerStart.scala:153)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1$$anonfun$2.apply(DevServerStart.scala:150)
at play.utils.Threads$.withContextClassLoader(Threads.scala:21)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(DevServerStart.scala:150)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(DevServerStart.scala:121)
at scala.Option.map(Option.scala:146)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1.apply(DevServerStart.scala:121)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1.apply(DevServerStart.scala:119)
at scala.util.Success.flatMap(Try.scala:231)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1.apply(DevServerStart.scala:119)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1.apply(DevServerStart.scala:111)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: Configuration error: Configuration error[Driver not found: [org.neo4j.jdbc.Driver}]]
at play.api.Configuration$.configError(Configuration.scala:178)
at play.api.PlayConfig.reportError(Configuration.scala:1048)
at play.api.db.DefaultDatabase$$anonfun$driver$1.apply(Databases.scala:115)
at play.api.db.DefaultDatabase$$anonfun$driver$1.apply(Databases.scala:109)
at scala.Option.map(Option.scala:146)
at play.api.db.DefaultDatabase.driver$lzycompute(Databases.scala:109)
at play.api.db.DefaultDatabase.driver(Databases.scala:108)
at play.api.db.DefaultDatabase.dataSource$lzycompute(Databases.scala:123)
at play.api.db.DefaultDatabase.dataSource(Databases.scala:122)
at play.api.db.DefaultDatabase.getConnection(Databases.scala:143)
at play.api.db.DefaultDatabase.getConnection(Databases.scala:139)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:44)
... 56 more
Caused by: #70ombh24b: Cannot load Driver
at play.utils.Reflect$.createInstance(Reflect.scala:137)
at play.api.db.DefaultDatabase$$anonfun$driver$1.apply(Databases.scala:111)
... 65 more
Caused by: java.lang.ClassNotFoundException: org.neo4j.jdbc.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at play.utils.Reflect$.getClass(Reflect.scala:142)
at play.utils.Reflect$.createInstance(Reflect.scala:131)
... 66 more