Cannot create enum from eu-north-1 value!

[jurgispods]

Hi,

after months of smooth operation, I just got the following error:

19/11/18 14:02:42 ERROR ApplicationMaster: User class threw exception: java.lang.ExceptionInInitializerError
java.lang.ExceptionInInitializerError
        at awscala.package$.<init>(package.scala:3)
        at awscala.package$.<clinit>(package.scala)
[...]
Caused by: java.lang.IllegalArgumentException: Cannot create enum from eu-north-1 value!
        at com.amazonaws.regions.Regions.fromName(Regions.java:88)
        at awscala.Region0$.apply(Region0.scala:12)
        at awscala.Region0$.<init>(Region0.scala:57)
        at awscala.Region0$.<clinit>(Region0.scala)
        ... 24 more

The offending line in my code is:

implicit val s3: awscala.s3.S3 = S3.at(Region.Frankfurt)

That's odd, because Frankfurt is eu-central-1 and has nothing to do with the eu-north-1 region.

It happens during an AWS EMR job. Any ideas what is going on here?

[ocworld]

In my case, after updating awscala to 0.8.3, the error is occurred. So, I've tried to use awscala 0.8.2, it is not raised.

I do not know a reason. However, I assume that 0.8.3 version has some problems or changes for using APIs.

You can try to change dependencies option like that,

libraryDependencies += "com.github.seratch" %% "awscala" % "0.8.2" 

[seratch]

diff: 0.8.2...0.8.3

-lazy val awsJavaSdkVersion = "1.11.541"
+lazy val awsJavaSdkVersion = "1.11.621"

Which AWS SDK version does your app depend on? I'm afraid the problem may be caused by some binary compatibility issues among AWS SDK versions.

[ocworld]

Surely, the version of sdk used in my app is written in awscala's build sbt file. It is not overwritten and manually set. When I use 0.8.3, awsJavaSdkVersion is "1.11.621".

I'm not sure that it is a general problem among AWS SDK versions. However, In my case, the error is occurred not in 0.8.2 but in 0.8.3.

[jurgispods]

My problem also started after an (unintentional) upgrade of this library. The AWS SDK used in EMR version 5.20.0 ist 1.11.461, which is "too old" for the current version 0.8.3. I just upgraded to a newer EMR version 5.28.0 and now everything works fine.

@seratch I dont' know if you want to add a workaround for the europe-north-1 region like here? https://github.com/seratch/AWScala/blob/master/core/src/main/scala/awscala/Region0.scala#L54

[seratch]

@pederpansen Thanks. I would like to cover all the regions in that code.

[ghost]

This breaks for me as well moving from "0.8.2" to "0.8.3" with same Cannot create enum from eu-north-1 value.

[seratch]

Merged #212

The fix will eliminate the possibility to have this exception in future versions. Allow me to close this issue now.