Terracotta toolkit missing class prevents EHCache from starting - java

I am new to EHCache and tried to use it as our cache server. I wrote the code trying to get started:
public class CacheMap {
private static CacheManager cacheManager=new CacheManager("ehcache.xml");
private static Cache cache=cacheManager.getCache("firstCache");
}
In classpath, I have included terracotta-toolkit-1.6-5.2.0.jar, terracotta-toolkit-1.6-runtime-5.0.0, slf4j-api-1.6.6, slf4j-jdk14-1.6.6, ehcache-2.7.0 and ehcache-ee-2.7.0
And I have ehcache.xml in my root directory.
However, I have got the following error on first line of my code:
Exception in thread "main" java.lang.ExceptionInInitializerError
Caused by: net.sf.ehcache.CacheException: Could not create ClusteredInstanceFactory due to missing class. Please verify that terracotta-toolkit is in your classpath.
at net.sf.ehcache.terracotta.TerracottaClusteredInstanceHelper.newClusteredInstanceFactory(TerracottaClusteredInstanceHelper.java:187)
at net.sf.ehcache.terracotta.TerracottaClient.createNewClusteredInstanceFactory(TerracottaClient.java:169)
at net.sf.ehcache.terracotta.TerracottaClient.createClusteredInstanceFactory(TerracottaClient.java:126)
at net.sf.ehcache.CacheManager.doInit(CacheManager.java:442)
at net.sf.ehcache.CacheManager.init(CacheManager.java:392)
at net.sf.ehcache.CacheManager.<init>(CacheManager.java:291)
at CacheMap.<clinit>(CacheMap.java:7)
Any ideas how to get Terracotta working?

I think you have mixed required terracotta jars. If you use maven here are the dependencies for terracotta ver. 3.6.5 (the last version compatible with JDK5):
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache-core-ee</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache-terracotta-ee</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.terracotta</groupId>
<artifactId>terracotta-toolkit-1.5-runtime-ee</artifactId>
<version>4.5.0</version>
</dependency>
Also don't forget to point to terracotta's maven repository to download required jars:
<repository>
<id>terracotta-repository</id>
<url>http://www.terracotta.org/download/reflector/releases</url>
<releases>
<enabled>true</enabled>
</releases>
</repository>
If you are not using maven, then you should have on your classpath the following jars:
ehcache-core-ee-2.5.6.jar
ehcache-terracotta-ee-2.5.6.jar
terracotta-toolkit-1.5-runtime-ee-4.5.0.jar

Related

Dependency 'me.sargunvohra.lib:pokekotlin:2.3.0' not found

I'm trying to use the PokeAPI for a Java Project. It should work, however, when I try to add the dependancy to my pom.xml, it doesn't recognise it. I have the files downloaded from the github, and have the following code in my pom.xml:
<dependency>
<groupId>me.sargunvohra.lib</groupId>
<artifactId>pokekotlin</artifactId>
<version>2.3.0</version>
</dependency>
files
But I keep getting this error:
Could not find artifact me.sargunvohra.lib:pokekotlin:pom:2.3.0 in
central (https://repo.maven.apache.org/maven2)
Does anyone know how to properly add this dependency? The code below does not work when I try to use it.
PokeApi pokedex = new PokeApiClient ();
PokemonSpecies pokemon = pokedex.getPokemonSpecies (1);
System.out.println(pokemon);
P.S. I have tried to invalidate cache and restart, that does not work either.
The artifact is located at Spring Plugins repository (https://repo.spring.io/plugins-release/) so you need to add it to your pom.xml as follows:
<repositories>
<repository>
<id>spring-plugins-release</id>
<name>Spring Plugins</name>
<url>https://repo.spring.io/plugins-release/</url>
</repository>
</repositories>

How to use JIRA REST client library?

I need to use JIRA REST client version 5.2.0 or higher. Cloud JIRA does not work with an earlier version of the client.
In my pom.xml file I have the following dependencies:
<dependency>
<groupId>com.atlassian.jira</groupId>
<artifactId>jira-rest-java-client-core</artifactId>
<version>5.2.1</version>
</dependency>
<dependency>
<groupId>com.atlassian.jira</groupId>
<artifactId>jira-rest-java-client-app</artifactId>
<version>5.2.1</version>
</dependency>
When I building the project, I get an exception like this:
Failed to execute goal on project XXXXXXXXX: Could not resolve dependencies for project XXXXXXXXXX:jar:XXXX: Failed to collect dependencies at com.atlassian.jira:jira-rest-java-client-core:jar:5.2.1: Failed to read artifact descriptor for com.atlassian.jira:jira-rest-java-client-core:jar:5.2.1: Could not find artifact com.atlassian.platform:platform:pom:3.1.7 in MY_REPO (http://XXXXXXXXXX/repository/maven-public) -
com.atlassian.platform:platform:pom:3.1.7 is not listd at mvnrepository. There are versions 3.1.12 and 3.1.17, but not 3.1.7. Someone told me that version 3.1.7 might have had a security-related bug and was therefore removed by Atlassian.
Both jira-rest-java-client-app and jira-rest-java-client-core are children of jira-rest-java-client-parent, which uses version 3.1.7 of the platform:
<groupId>com.atlassian.jira</groupId>
<artifactId>jira-rest-java-client-parent</artifactId>
<version>5.2.1</version>
<packaging>pom</packaging>
[...]
<properties>
<platform.version>3.1.7</platform.version>
[...]
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.atlassian.platform</groupId>
<artifactId>platform</artifactId>
<version>${platform.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
5.2.1 seems to be the latest version of both jira-rest-java-client-core and jira-rest-java-client-app.
How can I use the JIRA REST client (for programmatically creating issues in Cloud JIRA) when it uses a version of the library that is not available any more?
I tried to exclude the platform in the dependencies and to specify another version in depencency management sections. This did not help.
The accepted answer is absolutely correct. A concrete example on how to be able to get the artifacts from https://packages.atlassian.com, for anyone coming here looking for answers, would be to include a repository element for it in your pom, like so:
<repositories>
<repository>
<id>atlassian-public</id>
<url>https://packages.atlassian.com/maven/repository/public</url>
</repository>
</repositories>
A WORD OF CAUTION, THOUGH: The jira-rest-java-client was created for use with Jira Server, not Jira Cloud
Some months ago, Atlassian made changes to Jira Cloud which made it impossible to use the jira-rest-java-client (JRJC) for things such as searches in Jira Cloud. As far as I can tell they don't intend to make the JRJC library compatible with Jira Cloud anymore. Atlassian has provided an article on how to generate a REST client for Jira Cloud, but as far as I know, they haven't created any Jira Cloud libraries similar to the JRJC.
If you have a look at the repository
https://packages.atlassian.com/mvn/maven-external
from atlassian, you find the desired artifact com.atlassian.platform:platform:pom:3.1.7there. Since this repository seems to be from atlassian, I see no reason to believe that they recommend not to use the version.
This is also discussed in https://community.atlassian.com/t5/Jira-questions/Jira-rest-java-client-core-5-1-and-fugue-2-7-0-breaks-build/qaq-p/1151091

Why am I not able to import a class into java file in Eclipse Maven Project?

I need to use AuthenticationRequest in my Maven Java Project. I did a search on the internet and found AuthenticationRequest on this page (OpenID Connect authentication), indicating this library contains AuthenticationRequest. I follow the links on that website to this page (com.nimbusds:oauth2-oidc-sdk-6.13 API Doc) and find a list of packages. I found this library at Maven Repository.
I added the information in my pom.xml in my Maven Project in Eclipse. Updated Project. Yet I am not able to import any packages starting with "com.nimbusds.oauth2".
Here is the dependency info for that library that I put in my pom.xml file:
<!-- https://mvnrepository.com/artifact/com.nimbusds/oauth2-oidc-sdk -->
<dependency>
<groupId>com.nimbusds</groupId>
<artifactId>oauth2-oidc-sdk</artifactId>
<version>6.13</version>
<scope>runtime</scope>
</dependency>
I am following an example code that uses the AuthenticationRequest class. I am having trouble finding the Maven info to put in my pom.xml file that allows me to use that class in my project. How do I find the right info for it?
Since you are developing a class that depends on that AuthenticationRequest class to compile, your maven goal is going to be before runtime. Maven scope of runtime is not appropriate.
You need to modify your pom.xml to specify compile scope:
<dependency>
<groupId>com.nimbusds</groupId>
<artifactId>oauth2-oidc-sdk</artifactId>
<version>6.13</version>
<scope>compile</scope>
</dependency>
Since Maven's default scope is compile, you could also just omit the scope tag.
Maven will import dependencies from the Maven Central repository by default. If Maven Central doesn't contain your dependency (I haven't checked) you must specify a repository that does contain it with something of this form in your pom.xml (note the repo is just an example - substitute a real one that contains your dependency)
<repositories>
<repository>
<id>some-example-repo</id>
<url>http://some.example.repo/some_example_path/</url>
</repository>
</repositories>

Cannot load configuration class

I am following this tutorial about how to use Spring and based on the provided example, I get the following exception:
Exception in thread "main" java.lang.IllegalStateException: Cannot load configuration class: com.tutorialspoint.HelloWorldConfig
at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:378)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:263)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:265)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:126)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:609)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:84)
at com.tutorialspoint.MainApp.main(MainApp.java:9)
Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:237)
at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:317)
at org.springframework.context.annotation.ConfigurationClassEnhancer.createClass(ConfigurationClassEnhancer.java:128)
at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:100)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:368)
... 7 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:384)
at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:219)
... 12 more
Caused by: java.lang.SecurityException: class "com.tutorialspoint.HelloWorldConfig$$EnhancerBySpringCGLIB$$b5aece24"'s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(ClassLoader.java:952)
at java.lang.ClassLoader.preDefineClass(ClassLoader.java:666)
at java.lang.ClassLoader.defineClass(ClassLoader.java:794)
... 18 more
I have researched my problem and have found this; someone also has had the same problem as me, and it has something to do with ensuring that ASM is compatible with CGLIB. However I have tried this solution and it has not worked, I even went as far as using the exact same versions as the one provided (GBLIB 2.2.2 and ASM 3.3.1).
What do I need to do in order to correct this?
For simplicity, here are the files which I am using that were extracted from the provided tutorial.
HelloWorldConfig.java
package com.tutorialspoint;
import org.springframework.context.annotation.*;
#Configuration
public class HelloWorldConfig {
#Bean
public HelloWorld helloWorld() {
return new HelloWorld();
}
}
HelloWorld.java
package com.tutorialspoint;
public class HelloWorld {
private String message;
public void setMessage(String message) {
this.message = message;
}
public void getMessage() {
System.out.println("Your Message : " + message);
}
}
MainApp.java
package com.tutorialspoint;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.*;
public class MainApp {
public static void main(String[] args) {
#SuppressWarnings("resource")
ApplicationContext ctx = new AnnotationConfigApplicationContext(
HelloWorldConfig.class);
HelloWorld helloWorld = ctx.getBean(HelloWorld.class);
helloWorld.setMessage("Hello World!");
helloWorld.getMessage();
}
}
Also by saying 'However I have tried this solution and it has not worked' I mean that the exact same error is returned.
I had the same problem and realized the JRE version I have in the POM.xml or the default one associated with the project was not set in the class path. So updated the same under Preferences -> Installed JREs and ran the application it worked.
Gone through this problem yesterday and
Here is the solution.
Open Eclipse
Open window in menu bar -> preferences -> java ->installed jre
add new jre which is installed in system(c:program_files->java->jre->bin) add it.
Select the new added jre and BOOOM 🔥🔥
This problem occurred due to spring dependency problem, I too used below dependency facing same issue, the configuration classes didn't loaded
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.1.6.RELEASE</version>
</dependency>
Try below one: for me it is working
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.1.6.RELEASE</version>
</dependency>
So, i would say the "other" you mentioned, has an different problem.
Even when the "Last-Shown-Exception" is the same as yours.
But as you can see in your stacktrace, the "source" is a SecurityException.
The *Cannot load configuration class*-Error is a aftereffect
I assume there is something wrong with the "code signation" in your project
or, due to ByteCode-Manipulation, the signation is broken.
PS:
Sometimes this also can happen, when you reference "SignedLibs" and "UnsignedLibs" in your project.
in this case remove the signation from the signed libs.
All jars required for this project to run:
1) org.springframework.core-3.0.1.RELEASE-A.jar
2) spring-context-3.0.4.RELEASE.jar
3) org.springframework.beans-3.0.1.RELEASE-A.jar
4) commons-logging-1.1.1.jar
5) asm-3.3.1.jar
6) cglib-2.2.2.jar
To get these jars,either add the downloaded jars to your project directly, or provide the following dependencies in the pom.xml to get them automatically downloaded for you.
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.0.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>3.0.1.RELEASE</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.0.4.RELEASE</version>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2.2</version>
</dependency>
</dependencies>
Add this to your maven settings.xml file if not already present:
<profiles>
<profile>
<id>SPRINGLEARN</id>
<activation>
<jdk>1.8</jdk>
</activation>
<repositories>
<repository>
<id>thirdPartyRepo</id>
<name>Third party repository</name>
<url>https://repo.spring.io/libs-release/</url>
<layout>default</layout>
<snapshotPolicy>always</snapshotPolicy>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>thirdPartyPluginRepo</id>
<name>Third party plugin repository</name>
<url>https://repo.spring.io/libs-release/</url>
<layout>default</layout>
<snapshotPolicy>always</snapshotPolicy>
</pluginRepository>
</pluginRepositories>
</profile>
</profiles>
After this, just run your project.
-Right click on your project -> Run as -> Maven clean
-Right click on your project -> Run as -> Maven install
-Right click on your project -> Run as -> Java application
I too faced this issue.
Use the latest version of spring. works in versions of 5.
Check out the POM.xml for suitable dependencies
enter image description here
and also JRE as well... it will work with java 1.7

Spring MVC 3 Validation - Unable to find a default provider

I get an error when trying to set up Spring MVC validation.
javax.validation.ValidationException: Unable to find a default provider
I read in the documents that the default provider they use is the hibernate-validator. Do I need to include this library to get validation to work? Is it okay to include this library even though i'm not using hibernate for my project?
If you are using Maven, you must add a dependency to the Hibernate Validator Annotation Processor.
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator-annotation-processor</artifactId>
<version>4.1.0.Final</version>
</dependency>
You can find it in the JBoss repository :
<repository>
<id>JBoss Repository</id>
<url>https://repository.jboss.org/nexus/content/repositories/releases</url>
<name>JBoss Repository</name>
</repository>
Yes, you should include Hibernate Validator library in order to use it. It doesn't depend on Hibernate itself.
Make sure you're using Hibernate 4.

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