Develop Reference

Why don't I have access to certain parts of a package?

I am trying to implement the OAuth2 Client Credentials flow with Spring's WebClient like it's described by Baeldung (see here: https://www.baeldung.com/spring-webclient-oauth2).
When I write this line of code
ServerOAuth2AuthorizedClientExchangeFilterFunction oauth =
new ServerOAuth2AuthorizedClientExchangeFilterFunction(
clientRegistrations,
new UnAuthenticatedServerOAuth2AuthorizedClientRepository());
IntelliJ says that it doesn't know "ServerOAuth2AuthorizedClientExchangeFilterFunction".
The documentation of spring says that the package to import is as follows (see here: https://docs.spring.io/spring-security/site/docs/current-SNAPSHOT/api/org/springframework/security/oauth2/client/web/reactive/function/client/ServerOAuth2AuthorizedClientExchangeFilterFunction.html):
org.springframework.security.oauth2.client.web.reactive.function.client
I have the following dependencies concerning Spring Security OAuth2:
<dependency>
<groupId>org.springframework.security.oauth</groupId>
<artifactId>spring-security-oauth2</artifactId>
<version>2.5.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-oauth2-client</artifactId>
<version>5.5.1</version>
<type>pom</type>
</dependency>
When I try to manually import it, I come until here:
org.springframework.security.oauth2.client
IntelliJ suggests me a few options, but I need .web which is not listed.
Here is an image of IntelliJs suggestions
And then no suggestions for ".web.reactive.function.client".
Why doesn't this work?
Many thanks

How to import Xodus in Java?

I have added the dependency to my pom.xml:
<dependency>
<groupId>org.jetbrains.xodus</groupId>
<artifactId>xodus-openAPI</artifactId>
<version>1.3.124</version>
</dependency>
<dependency>
<groupId>org.jetbrains.xodus</groupId>
<artifactId>xodus-environment</artifactId>
<version>1.3.124</version>
</dependency>
But it's the only one that doesn't seem to work when I import it in a Java class. I tried many different ways to import it, such as import org.jetbrains.exodus.env.Environments; but none of them work.
I am using JDK 11 and Netbeans 11.2.

Right package for Environments API is jetbrains.exodus.env, so import jetbrains.exodus.env.Environments;should work.

The import org.mybatis.dynamic cannot be resolved

I want to try the example of dynamic update statement on this tutorial link : http://www.mybatis.org/mybatis-dynamic-sql/docs/update.html. I saw that it needs the import org.mybatis.dynamic.sql.update.render.UpdateStatementProvider; , So i've searched for dependency in the maven central and added below dependency on my pom.xml
<!-- https://mvnrepository.com/artifact/org.mybatis.dynamic-sql/mybatis-dynamic-sql -->
<dependency>
<groupId>org.mybatis.dynamic-sql</groupId>
<artifactId>mybatis-dynamic-sql</artifactId>
<version>1.0.0</version>
</dependency>
Already tried mvn clean install -U on maven build but still The import org.mybatis.dynamic cannot be resolved error always shows. Where can i have the correct maven dependency for this. Or you can suggest me other dynamic update statement approach on mybatis using xml mapper.

I also added the newest version of it and everything worked as expected. I had the problem, that mybatis-spring-boot-starter did not include mybatis-dynamic-sql.
<dependency>
<groupId>org.mybatis.dynamic-sql</groupId>
<artifactId>mybatis-dynamic-sql</artifactId>
<version>1.3.1</version>
</dependency>

NoSuchMethodError: com.fasterxml.jackson.module.scala.deser.BigDecimalDeserializer

sc.newAPIHadoopRDD is continuously giving me the error.
val hBaseRDD = sc.newAPIHadoopRDD(hbase_conf, classOf[TableInputFormat], classOf[org.apache.hadoop.hbase.io.ImmutableBytesWritable], classOf[org.apache.hadoop.hbase.client.Result]);
java.lang.NoSuchMethodError: ava.lang.NoSuchMethodError: com.fasterxml.jackson.module.scala.deser.BigDecimalDeserializer$.handledType()Ljava/lang/Class;
at com.fasterxml.jackson.module.scala.deser.NumberDeserializers$.<init>(ScalaNumberDeserializersModule.scala:49)
at com.fasterxml.jackson.module.scala.deser.NumberDeserializers$.<clinit>(ScalaNumberDeserializersModule.scala)
at com.fasterxml.jackson.module.scala.deser.ScalaNumberDeserializersModule$class.$init$(ScalaNumberDeserializersModule.scala:61)
at com.fasterxml.jackson.module.scala.DefaultScalaModule.<init>(DefaultScalaModule.scala:20)
at com.fasterxml.jackson.module.scala.DefaultScalaModule$.<init>(DefaultScalaModule.scala:37)
at com.fasterxml.jackson.module.scala.DefaultScalaModule$.<clinit>(DefaultScalaModule.scala)
at org.apache.spark.rdd.RDDOperationScope$.<init>(RDDOperationScope.scala:82)
at org.apache.spark.rdd.RDDOperationScope$.<clinit>(RDDOperationScope.scala)
at org.apache.spark.SparkContext.withScope(SparkContext.scala:701)
at org.apache.spark.SparkContext.newAPIHadoopRDD(SparkContext.scala:1132)
I am trying to fetch values from Hbase.it is working perfectly fine in my local system already gone through many other answers related to this topic but nothing has helped me out yet.
But whenever I try to run it on my cluster it gives me error as mentioned above.
Already done all these imports
import org.apache.hadoop.hbase.HBaseConfiguration
import org.apache.hadoop.hbase.mapreduce.TableInputFormat
import org.apache.hadoop.hbase.client.HBaseAdmin
import org.apache.hadoop.hbase.{HTableDescriptor,HColumnDescriptor}
import org.apache.hadoop.hbase.util.Bytes
import org.apache.hadoop.hbase.client.{Put,HTable}
import org.apache.hadoop.fs.Path
import org.apache.hadoop.hbase._
import org.apache.hadoop.hbase.client._
import org.apache.hadoop.hbase.util._
import org.apache.spark._
import org.apache.hadoop.hbase.client.{HBaseAdmin, Result}
import org.apache.hadoop.hbase.{ HBaseConfiguration, HTableDescriptor }
import org.apache.hadoop.hbase.mapreduce.TableInputFormat
import org.apache.hadoop.hbase.io.ImmutableBytesWritable
Followed all the steps of installation as well as classpath from
https://acadgild.com/blog/apache-spark-hbase/
Please Help me.

I got my problem after searching and exploring other jars
My Hadoop Version 2.7.3
My Hbase Version 1.4.2
Libraries I was using was of version 1.4.2 only but straight away using them as
--driver-class-path $HBASE_HOME
As mentioned in the Link which I referred from.
But the issue was it was giving me some JARS incompatibility and also multiple occurrences of JARS with same name.
Actually the only Dependencies that are needed to run Hbase successfully are
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase-client</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase</artifactId>
<version>1.3.1</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase-server</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase-common</artifactId>
<version>1.3.1</version>
</dependency>
Updated Libraries of Hbase doesnt have the required classes to implement Hbase.
After using these version of libraries it worked for me perfectly fine.

Import / Dependency Cannot be Resolved in Maven

I'm using a program that relies on the following two imports:
import org.lwjgl.opencl.CLDevice;
import org.lwjgl.opencl.CLPlatform;
Eclipse is reporting that the "import cannot be resolved" even though I've added LWJGL OpenCL as a dependency to my project.
Here's a snapshot of my POM file:
<dependency>
<groupId>org.lwjgl</groupId>
<artifactId>lwjgl-opencl</artifactId>
<version>3.1.6</version>
</dependency>
I've read somewhere that these classes only exist in an earlier version so I tried changing the version to all of the versions found here ( from 3.1.0 to 3.1.6) but none of them resolved the issue.
Is there an earlier/different version that is not on the Maven repository page? If not where could I find the said class?
Thanks

It seems that you are using the abandoned lwjgl v2 library. It can be found in another Maven repository:
<dependency>
<groupId>org.lwjgl.lwjgl</groupId>
<artifactId>lwjgl</artifactId>
<version>2.9.3</version>
</dependency>