[ 
https://issues.apache.org/jira/browse/SOLR-5363?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Petar Tahchiev updated SOLR-5363:
---------------------------------

    Description: 
Hey guys,

I'm using Log4J2 + SLF4J in my project. Unfortunately my embedded solr server 
throws this error when starting:

{code}
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: 
Factory method [public org.springframework.da
ta.solr.core.SolrOperations 
com.xxxxx.platform.core.config.SolrsearchConfig.defaultSolrTemplate() throws 
javax.xml.par
sers.ParserConfigurationException,java.io.IOException,org.xml.sax.SAXException] 
threw exception; nested exception is org
.springframework.beans.factory.BeanCreationException: Error creating bean with 
name 'defaultSolrServer' defined in class
 path resource [com/xxxxx/platform/core/config/SolrsearchConfig.class]: 
Instantiation of bean failed; nested exception
 is org.springframework.beans.factory.BeanDefinitionStoreException: Factory 
method [public org.apache.solr.client.solrj.
SolrServer 
com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer() throws 
javax.xml.parsers.ParserConfigur
ationException,java.io.IOException,org.xml.sax.SAXException] threw exception; 
nested exception is java.lang.NoClassDefFo
undError: org/apache/log4j/Priority
        at 
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
.java:181)
        at 
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolv
er.java:570)
        ... 105 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error 
creating bean with name 'defaultSolrServer' de
fined in class path resource 
[com/xxxxxx/platform/core/config/SolrsearchConfig.class]: Instantiation of bean 
failed; ne
sted exception is 
org.springframework.beans.factory.BeanDefinitionStoreException: Factory method 
[public org.apache.solr
.client.solrj.SolrServer 
com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer() throws 
javax.xml.parsers.
ParserConfigurationException,java.io.IOException,org.xml.sax.SAXException] 
threw exception; nested exception is java.lan
g.NoClassDefFoundError: org/apache/log4j/Priority
        at 
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolv
er.java:581)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(Ab
stractAutowireCapableBeanFactory.java:1025)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutow
ireCapableBeanFactory.java:921)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCap
ableBeanFactory.java:487)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapab
leBeanFactory.java:458)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
        at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegis
try.java:223)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
        at 
org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(Configurati
onClassEnhancer.java:298)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.defaultSolrServer(<generated>)
        at 
com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrTemplate(SolrsearchConfig.java:37)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.CGLIB$defaultSolrTemplate$2(<gen
erated>)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6$$FastClassByCGLIB$$f67069c2.invo
ke(<generated>)
        at 
org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
        at 
org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(Configurati
onClassEnhancer.java:286)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.defaultSolrTemplate(<generated>)

        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.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
.java:160)
        ... 106 more
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: 
Factory method [public org.apache.solr.client
.solrj.SolrServer 
com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer() throws 
javax.xml.parsers.ParserC
onfigurationException,java.io.IOException,org.xml.sax.SAXException] threw 
exception; nested exception is java.lang.NoCla
ssDefFoundError: org/apache/log4j/Priority
        at 
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
.java:181)
        at 
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolv
er.java:570)
        ... 127 more
Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Priority
        at org.apache.solr.core.CoreContainer.load(CoreContainer.java:433)
        at org.apache.solr.core.CoreContainer.load(CoreContainer.java:358)
        at org.apache.solr.core.CoreContainer.<init>(CoreContainer.java:160)
        at 
org.springframework.data.solr.server.support.EmbeddedSolrServerFactory.createPathConfiguredSolrServer(Embedde
dSolrServerFactory.java:101)
        at 
org.springframework.data.solr.server.support.EmbeddedSolrServerFactory.initSolrServer(EmbeddedSolrServerFacto
ry.java:77)
        at 
org.springframework.data.solr.server.support.EmbeddedSolrServerFactory.getSolrServer(EmbeddedSolrServerFactor
y.java:70)
        at 
com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer(SolrsearchConfig.java:32)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.CGLIB$defaultSolrServer$1(<gener
ated>)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6$$FastClassByCGLIB$$f67069c2.invo
ke(<generated>)
        at 
org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
        at 
org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(Configurati
onClassEnhancer.java:286)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.defaultSolrServer(<generated>)
        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.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
.java:160)
        ... 128 more
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Priority
        at 
org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
        at 
org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
        at 
org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
        at 
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:430)
        at 
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:383)
        ... 145 more
{code}

Seems like Solr relies on Log4J version 1.x. 

  was:
Hey guys,

I'm using Log4J2 + SLF4J in my project. Unfortunately my embedded solr server 
throws this error when starting:

{code}
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: 
Factory method [public org.springframework.da
ta.solr.core.SolrOperations 
com.xxxxx.platform.core.config.SolrsearchConfig.defaultSolrTemplate() throws 
javax.xml.par
sers.ParserConfigurationException,java.io.IOException,org.xml.sax.SAXException] 
threw exception; nested exception is org
.springframework.beans.factory.BeanCreationException: Error creating bean with 
name 'defaultSolrServer' defined in class
 path resource [com/xxxxx/platform/core/config/SolrsearchConfig.class]: 
Instantiation of bean failed; nested exception
 is org.springframework.beans.factory.BeanDefinitionStoreException: Factory 
method [public org.apache.solr.client.solrj.
SolrServer 
com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer() throws 
javax.xml.parsers.ParserConfigur
ationException,java.io.IOException,org.xml.sax.SAXException] threw exception; 
nested exception is java.lang.NoClassDefFo
undError: org/apache/log4j/Priority
        at 
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
.java:181)
        at 
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolv
er.java:570)
        ... 105 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error 
creating bean with name 'defaultSolrServer' de
fined in class path resource 
[com/nemesis/platform/core/config/SolrsearchConfig.class]: Instantiation of 
bean failed; ne
sted exception is 
org.springframework.beans.factory.BeanDefinitionStoreException: Factory method 
[public org.apache.solr
.client.solrj.SolrServer 
com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer() throws 
javax.xml.parsers.
ParserConfigurationException,java.io.IOException,org.xml.sax.SAXException] 
threw exception; nested exception is java.lan
g.NoClassDefFoundError: org/apache/log4j/Priority
        at 
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolv
er.java:581)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(Ab
stractAutowireCapableBeanFactory.java:1025)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutow
ireCapableBeanFactory.java:921)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCap
ableBeanFactory.java:487)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapab
leBeanFactory.java:458)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
        at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegis
try.java:223)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
        at 
org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(Configurati
onClassEnhancer.java:298)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.defaultSolrServer(<generated>)
        at 
com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrTemplate(SolrsearchConfig.java:37)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.CGLIB$defaultSolrTemplate$2(<gen
erated>)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6$$FastClassByCGLIB$$f67069c2.invo
ke(<generated>)
        at 
org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
        at 
org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(Configurati
onClassEnhancer.java:286)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.defaultSolrTemplate(<generated>)

        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.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
.java:160)
        ... 106 more
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: 
Factory method [public org.apache.solr.client
.solrj.SolrServer 
com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer() throws 
javax.xml.parsers.ParserC
onfigurationException,java.io.IOException,org.xml.sax.SAXException] threw 
exception; nested exception is java.lang.NoCla
ssDefFoundError: org/apache/log4j/Priority
        at 
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
.java:181)
        at 
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolv
er.java:570)
        ... 127 more
Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Priority
        at org.apache.solr.core.CoreContainer.load(CoreContainer.java:433)
        at org.apache.solr.core.CoreContainer.load(CoreContainer.java:358)
        at org.apache.solr.core.CoreContainer.<init>(CoreContainer.java:160)
        at 
org.springframework.data.solr.server.support.EmbeddedSolrServerFactory.createPathConfiguredSolrServer(Embedde
dSolrServerFactory.java:101)
        at 
org.springframework.data.solr.server.support.EmbeddedSolrServerFactory.initSolrServer(EmbeddedSolrServerFacto
ry.java:77)
        at 
org.springframework.data.solr.server.support.EmbeddedSolrServerFactory.getSolrServer(EmbeddedSolrServerFactor
y.java:70)
        at 
com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer(SolrsearchConfig.java:32)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.CGLIB$defaultSolrServer$1(<gener
ated>)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6$$FastClassByCGLIB$$f67069c2.invo
ke(<generated>)
        at 
org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
        at 
org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(Configurati
onClassEnhancer.java:286)
        at 
com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.defaultSolrServer(<generated>)
        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.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
.java:160)
        ... 128 more
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Priority
        at 
org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
        at 
org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
        at 
org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
        at 
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:430)
        at 
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:383)
        ... 145 more
{code}

Seems like Solr relies on Log4J version 1.x. 


> NoClassDefFoundError when using Apache Log4J2
> ---------------------------------------------
>
>                 Key: SOLR-5363
>                 URL: https://issues.apache.org/jira/browse/SOLR-5363
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 4.5
>            Reporter: Petar Tahchiev
>              Labels: log4j2
>
> Hey guys,
> I'm using Log4J2 + SLF4J in my project. Unfortunately my embedded solr server 
> throws this error when starting:
> {code}
> Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: 
> Factory method [public org.springframework.da
> ta.solr.core.SolrOperations 
> com.xxxxx.platform.core.config.SolrsearchConfig.defaultSolrTemplate() throws 
> javax.xml.par
> sers.ParserConfigurationException,java.io.IOException,org.xml.sax.SAXException]
>  threw exception; nested exception is org
> .springframework.beans.factory.BeanCreationException: Error creating bean 
> with name 'defaultSolrServer' defined in class
>  path resource [com/xxxxx/platform/core/config/SolrsearchConfig.class]: 
> Instantiation of bean failed; nested exception
>  is org.springframework.beans.factory.BeanDefinitionStoreException: Factory 
> method [public org.apache.solr.client.solrj.
> SolrServer 
> com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer() throws 
> javax.xml.parsers.ParserConfigur
> ationException,java.io.IOException,org.xml.sax.SAXException] threw exception; 
> nested exception is java.lang.NoClassDefFo
> undError: org/apache/log4j/Priority
>         at 
> org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
> .java:181)
>         at 
> org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolv
> er.java:570)
>         ... 105 more
> Caused by: org.springframework.beans.factory.BeanCreationException: Error 
> creating bean with name 'defaultSolrServer' de
> fined in class path resource 
> [com/xxxxxx/platform/core/config/SolrsearchConfig.class]: Instantiation of 
> bean failed; ne
> sted exception is 
> org.springframework.beans.factory.BeanDefinitionStoreException: Factory 
> method [public org.apache.solr
> .client.solrj.SolrServer 
> com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer() throws 
> javax.xml.parsers.
> ParserConfigurationException,java.io.IOException,org.xml.sax.SAXException] 
> threw exception; nested exception is java.lan
> g.NoClassDefFoundError: org/apache/log4j/Priority
>         at 
> org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolv
> er.java:581)
>         at 
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(Ab
> stractAutowireCapableBeanFactory.java:1025)
>         at 
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutow
> ireCapableBeanFactory.java:921)
>         at 
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCap
> ableBeanFactory.java:487)
>         at 
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapab
> leBeanFactory.java:458)
>         at 
> org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
>         at 
> org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegis
> try.java:223)
>         at 
> org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
>         at 
> org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
>         at 
> org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(Configurati
> onClassEnhancer.java:298)
>         at 
> com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.defaultSolrServer(<generated>)
>         at 
> com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrTemplate(SolrsearchConfig.java:37)
>         at 
> com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.CGLIB$defaultSolrTemplate$2(<gen
> erated>)
>         at 
> com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6$$FastClassByCGLIB$$f67069c2.invo
> ke(<generated>)
>         at 
> org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
>         at 
> org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(Configurati
> onClassEnhancer.java:286)
>         at 
> com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.defaultSolrTemplate(<generated>)
>         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.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
> .java:160)
>         ... 106 more
> Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: 
> Factory method [public org.apache.solr.client
> .solrj.SolrServer 
> com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer() throws 
> javax.xml.parsers.ParserC
> onfigurationException,java.io.IOException,org.xml.sax.SAXException] threw 
> exception; nested exception is java.lang.NoCla
> ssDefFoundError: org/apache/log4j/Priority
>         at 
> org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
> .java:181)
>         at 
> org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolv
> er.java:570)
>         ... 127 more
> Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Priority
>         at org.apache.solr.core.CoreContainer.load(CoreContainer.java:433)
>         at org.apache.solr.core.CoreContainer.load(CoreContainer.java:358)
>         at org.apache.solr.core.CoreContainer.<init>(CoreContainer.java:160)
>         at 
> org.springframework.data.solr.server.support.EmbeddedSolrServerFactory.createPathConfiguredSolrServer(Embedde
> dSolrServerFactory.java:101)
>         at 
> org.springframework.data.solr.server.support.EmbeddedSolrServerFactory.initSolrServer(EmbeddedSolrServerFacto
> ry.java:77)
>         at 
> org.springframework.data.solr.server.support.EmbeddedSolrServerFactory.getSolrServer(EmbeddedSolrServerFactor
> y.java:70)
>         at 
> com.nemesis.platform.core.config.SolrsearchConfig.defaultSolrServer(SolrsearchConfig.java:32)
>         at 
> com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.CGLIB$defaultSolrServer$1(<gener
> ated>)
>         at 
> com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6$$FastClassByCGLIB$$f67069c2.invo
> ke(<generated>)
>         at 
> org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
>         at 
> org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(Configurati
> onClassEnhancer.java:286)
>         at 
> com.nemesis.platform.core.config.SolrsearchConfig$$EnhancerByCGLIB$$c571c5a6.defaultSolrServer(<generated>)
>         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.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy
> .java:160)
>         ... 128 more
> Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Priority
>         at 
> org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
>         at 
> org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
>         at 
> org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
>         at 
> org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:430)
>         at 
> org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:383)
>         ... 145 more
> {code}
> Seems like Solr relies on Log4J version 1.x. 



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