Did you use the reactive mongodb driver with JDK14 - mongodb

When trying to create a com.mongodb.reactivestreams.client.MongoClient using:
MongoClient mongoClient = MongoClients.create("mongodb://127.0.0.1:27017");
I get the following exception:
Exception in thread "main" java.lang.NoSuchMethodError: 'void com.mongodb.internal.connection.DefaultClusterableServerFactory.<init>
I'm using mongodb-driver-reactivestreams 4.1.0 dependency and mongo-java-driver 3.12.6

The problem is that you're mixing versions that are not compatible. If you want to use mongodb-driver-reactivestreams 4.1.0, then any other MongoDB dependencies should also be version 4.1.0. If you only want (or need) the reactive driver, then just remove the mongo-java-driver dependency.
If you also need the non-reactive driver then you need to use either mongodb-driver-sync 4.1.0 or mongodb-driver-legacy 4.1.0; the mongo-java-driver dependency was discontinued in version 4.x. See also Upgrading to the 4.0 Driver.

Related

Spark Coalesce error - no such method

i got this error. I'm not sure why this is the case because there is a coalesce method in org.apache.spark.rdd.RDD.
Any ideas?
Am I running a incompatible version of Spark and org.apache.spark.rdd.RDD?
Exception in thread "main" java.lang.NoSuchMethodError: org.apache.spark.rdd.RDD.coalesce$default$3(IZ)Lscala/math/Ordering;
It was because some part of your code or project dependencies called old version(spark version before 2.0.0) spark API 'coalesce' while in new version spark this API has been removed and replaced by 'repartition'.
To fix this problem, you could either downgrade your spark run environment to below version 2.0.0, or you can upgrade your SDK spark version to above 2.0.0 and upgrade project dependencies version to be compatible with spark 2.0.0 or above.
For more details please see this thread:
https://github.com/twitter/algebird/issues/549
https://github.com/EugenCepoi/algebird/commit/0dc7d314cba3be588897915c8dcfb14964933c31
As I suspected, this is a library compatibility issue. Everything works (no code change) after downgrading Spark alone.
Before:
scala 2.11.8
spark 2.0.1
Java 1.8.0_92
After
scala 2.11.8
spark 1.6.2
Java 1.8.0_92
OS: OSX 10.11.6

How to fix akka version compatibility issues?

I was thinking of using spark and redis together with SBT.
It runs fine if I comment out the spark dependency, if I include the spark dependency I get:
Exception in thread "main" java.lang.NoSuchMethodError: akka.actor.ActorSystem.dispatcher()Lscala/concurrent/ExecutionContextExecutor;
at redis.RedisClientActorLike.<init>(Redis.scala:31)
at redis.RedisClient.<init>(Redis.scala:69)
I have no issues when I do not include "redisscala". When I do include redisscala, then I get weird errors about Akka.
How do I get around this?
It appears that those versions of Spark and rediscala are using incompatible versions of Akka. Spark 1.1.0 is using Akka 2.2.3, and rediscala 1.3.1 is using Akka 2.3.4. There are some changes between Akka 2.2.x and 2.3.x that are causing issues, and your project currently has both as transient dependencies.
You either need to downgrade rediscala to 1.2 (which uses Akka 2.2.x), or upgrade Spark to 1.2-snapshot (which uses Akka 2.3.x).

Error while including casbah dependencies

I am facing problem in getting started with casabah to integrate scala and mongoDb. I am using Spring Tool Suite(STS) and imported the following jar files :
spring-data-mongodb-1.6.0.RELEASE.jar
com.mongodb.jar
casbah-commons_2.10-2.7.2.jar
casbah-query_2.10-2.7.2.jar
joda-time-2.1.jar
slf4j-api-1.7.7.jar
casbah-gridfs_2.10-2.5.0.jar
scalaj-collection_2.10-1.4.jar
slf4j-simple-1.7.7.jar
casbah-core_2.10-2.7.2.jar
mongo-2.10.0.jar
mongo-java-driver-2.10.0.jar
However, I get an error.
Error:Description Resource Path Location Type bad symbolic reference. A signature in Implicits.class refers to type Cursor in package com.mongodb which is not available. It may be completely missing from the current classpath, or the version on the classpath might be incompatible with the version used when compiling Implicits.class.
I read a couple of posts that says the problem is with the version in mongo-java-driver so i tried with mongo-java-driver-2.10.1.jar as well , But it was still giving me an error.
Could someone please help me resolve this error??
Thanks a lot in advance!!!
It looks like its a dependency issue. Casbah is built upon a fixed version of the Mongo Java driver so is reliant on a specific binary compatible version.
The Casbah version numbers should all be the same - above you mainly have Casbah 2.7.2 but the gridfs version is wrong: casbah-gridfs_2.10-2.5.0.jar.
Also, Casbah 2.7.2 relies on version 2.12.2 of the Mongo Java Driver, however, the latest version of Casbah is 2.7.3 which relies on version 2.12.3 of the Mongo Java Driver.
To make this simpler there is a all dependencies jar for Casbah that includes the latest version of the java driver and all the other relevant dependencies. Alternatively, the pom file should point all dependent packages which declare their dependencies. (As Casbah is split into sub packages the casbah-commons pom has all the external dependencies listed).

grails groovy version issue

I have a grails application with 2.4.1 grails version and used 2.3 groovy compiler.
I am getting following error when I try to run
java.lang.NoSuchMethodError: org.codehaus.groovy.runtime.DefaultGroovyMethods.count(Ljava/lang/Iterable;Lgroovy/lang/Closure;)Ljava/lang/Number;
at org.codehaus.groovy.grails.compiler.web.ControllerActionTransformer.processMethods(ControllerActionTransformer.java:234)
at org.codehaus.groovy.grails.compiler.web.ControllerActionTransformer.performInjectionOnAnnotatedClass(ControllerActionTransformer.java:204)
at org.codehaus.groovy.grails.compiler.web.ControllerActionTransformer.performInjection(ControllerActionTransformer.java:196)
at org.codehaus.groovy.grails.compiler.injection.GrailsAwareInjectionOperation.call(GrailsAwareInjectionOperation.java:154)
at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1213)
at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:645)
at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:623)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:600)
at org.codehaus.jdt.groovy.internal.compiler.ast.GroovyCompilationUnitDeclaration.processToPhase(GroovyCompilationUnitDeclaration.java:185)
at org.codehaus.jdt.groovy.internal.compiler.ast.GroovyCompilationUnitDeclaration.analyseCode(GroovyCompilationUnitDeclaration.java:2213)
at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:834)
at org.eclipse.jdt.internal.compiler.ProcessTaskManager.run(ProcessTaskManager.java:137)
at java.lang.Thread.run(Thread.java:701)
Grails 2.4.1 shipped with Groovy 2.3.3 and that is the only version of Groovy supported with that version of Grails. Normally you don't do anything to associate a version of Groovy with a version of Grails. Grails uses the version that is shipped with it.
Make sure that your GRAILS_HOME points to Grails 2.4.1 and that GRAILS_HOME/bin is on your PATH. If you have a different version of Grails on your PATH than the one that GRAILS_HOME points to, that can sometimes cause peculiar behavior.
I hope that helps.

configuring Play framework with Scala to use Neo4j graph db

I'm using scala in my app, it run without problem, but if I add neo4j in the dependencies, it throws a NoSuchMethod error. I didn't even have references to any neo4j classes in my code...
I have no problem using play framework with scala, or play framework (Java) with neo4j, just when using both together, it crash...
and I tried both neo4j 1.4.2 and 1.5.M02 to no avail.
thanks for any help~
Chris
dependencies.yml
# Application dependencies
require:
- play
- play -> scala 0.9.1
- org.neo4j -> neo4j 1.4.2
exception details:
play.exceptions.UnexpectedException: Unexpected Error
at play.Invoker$Invocation.onException(Invoker.java:232)
at play.Invoker$Invocation.run(Invoker.java:273)
at Invocation.HTTP Request(Play!)
Caused by: java.lang.NoSuchMethodError: scala.collection.generic.GenericTraversableTemplate.flatten(Lscala/Function1;)Lscala/collection/Traversable;
at play.scalasupport.compiler.PlayScalaCompiler$.scanFiles(ScalaCompiler.scala:18)
at play.scalasupport.compiler.PlayScalaCompiler$$anonfun$scanFiles$1.apply(ScalaCompiler.scala:17)
at play.scalasupport.compiler.PlayScalaCompiler$$anonfun$scanFiles$1.apply(ScalaCompiler.scala:15)
at play.scalasupport.compiler.PlayScalaCompiler$.scanFiles(ScalaCompiler.scala:15)
at play.scalasupport.compiler.PlayScalaCompiler$$anonfun$scanFiles$1.apply(ScalaCompiler.scala:17)
at play.scalasupport.compiler.PlayScalaCompiler$$anonfun$scanFiles$1.apply(ScalaCompiler.scala:15)
at play.scalasupport.compiler.PlayScalaCompiler$.scanFiles(ScalaCompiler.scala:15)
at play.scalasupport.ScalaPlugin$$anonfun$templates$1.apply(ScalaPlugin.scala:178)
at play.scalasupport.ScalaPlugin$$anonfun$templates$1.apply(ScalaPlugin.scala:177)
at play.scalasupport.ScalaPlugin.templates(ScalaPlugin.scala:177)
at play.scalasupport.ScalaPlugin.update(ScalaPlugin.scala:195)
at play.scalasupport.ScalaPlugin.detectClassesChange(ScalaPlugin.scala:107)
at play.plugins.PluginCollection.detectClassesChange(PluginCollection.java:358)
at play.Play.detectChanges(Play.java:594)
at play.Invoker$Invocation.init(Invoker.java:186)
... 1 more
it turns out that scala-library-2.9.0-1.jar is included as a dependency for neo4j...
every time I run play dependencies it will be downloaded into the lib folder, after I delete it from the folder, it works without problem (so far I just have code for starting and shutting down of the DB).
The Cypher Query language depends on Scala. We will update that dependency to 2.9.1 for the 1.5 release.