I am upgrading my Play application from 2.5.12 to 2.5.18 and when I start up the application (using sbt
), I am receiving this error:
CreationException: Unable to create injector, see the following errors:
- Error injecting constructor, java.lang.NullPointerException
at modules.OnStart.(OnStart.java:15)
at modules.Global.configure(Global.java:9) (via modules: com.google.inject.util.Modules$OverrideModule -> modules.Global)
while locating modules.OnStart
1 error
The rest of the error is:
No source available, here is the exception stack trace:
->com.google.inject.CreationException: Unable to create injector, see the following errors:
1) Error injecting constructor, java.lang.NullPointerException
at modules.OnStart.<init>(OnStart.java:15)
at modules.Global.configure(Global.java:9) (via modules: com.google.inject.util.Modules$OverrideModule -> modules.Global)
while locating modules.OnStart
1 error
com.google.inject.internal.Errors.throwCreationExceptionIfErrorsExist(Errors.java:470)
com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:184)
com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:110)
com.google.inject.Guice.createInjector(Guice.java:99)
com.google.inject.Guice.createInjector(Guice.java:84)
play.api.inject.guice.GuiceBuilder.injector(GuiceInjectorBuilder.scala:181)
play.api.inject.guice.GuiceApplicationBuilder.build(GuiceApplicationBuilder.scala:137)
play.api.inject.guice.GuiceApplicationLoader.load(GuiceApplicationLoader.scala:21)
play.core.server.DevServerStart$anon$1.$anonfun$get$6(DevServerStart.scala:171)
play.utils.Threads$.withContextClassLoader(Threads.scala:21)
play.core.server.DevServerStart$anon$1.$anonfun$get$3(DevServerStart.scala:168)
scala.Option.map(Option.scala:146)
play.core.server.DevServerStart$anon$1.$anonfun$get$2(DevServerStart.scala:133)
scala.util.Success.flatMap(Try.scala:247)
play.core.server.DevServerStart$anon$1.$anonfun$get$1(DevServerStart.scala:131)
scala.concurrent.Future$.$anonfun$apply$1(Future.scala:655)
scala.util.Success.$anonfun$map$1(Try.scala:251)
scala.util.Success.map(Try.scala:209)
scala.concurrent.Future.$anonfun$map$1(Future.scala:289)
scala.concurrent.impl.Promise.liftedTree1$1(Promise.scala:29)
scala.concurrent.impl.Promise.$anonfun$transform$1(Promise.scala:29)
scala.concurrent.impl.CallbackRunnable.run(Promise.scala:60)
scala.concurrent.impl.ExecutionContextImpl$AdaptedForkJoinTask.exec(ExecutionContextImpl.scala:140)
java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
I created new modules to replace the deprecated GlobalSettings
based on this post:
https://www.playframework.com/documentation/2.5.x/GlobalSettings
Here are the classes mentioned in the error:
Global.java
package modules;
import com.google.inject.AbstractModule;
public class Global extends AbstractModule {
@Override
public void configure() {
bind(OnStart.class).asEagerSingleton();
bind(OnStop.class).asEagerSingleton();
}
}
OnStart.java
package modules;
import javax.inject.Inject;
import javax.inject.Singleton;
import jobs.JobControl;
import play.Configuration;
import play.Logger;
@SuppressWarnings("deprecation")
@Singleton
public class OnStart {
@Inject
public OnStart() {
Logger.debug("Application started...");
// Turn on scheduler?
String schedulerEnabled;
String dueDateRun;
schedulerEnabled = Configuration.root().getString("scheduler.enabled");
dueDateRun = Configuration.root().getString("duedate.run.flag");
if (schedulerEnabled.equals("true")) {
//JobControl.cleanupTables();
//JobControl.emptyRecycleBin();
if (dueDateRun.equals("on")) {
JobControl.dueDateNotifications();
}
}
}
}
I am not sure what to do to fix this.