[ 
https://issues.apache.org/jira/browse/CAMEL-13654?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Thomas Diesler updated CAMEL-13654:
-----------------------------------
    Description: 
drools-7.23 uses this code in `org.drools.core.common.ProjectClassLoader` ...

{code}
    public void setDroolsClassLoader(ClassLoader droolsClassLoader) {
        if (getParent() != droolsClassLoader && 
isOsgiClassLoader(droolsClassLoader)) {
            this.droolsClassLoader = droolsClassLoader;
            if (CACHE_NON_EXISTING_CLASSES) {
                nonExistingClasses.clear();
            }
        }
    }
{code}

drools-7.14 uses

{code}
    public void setDroolsClassLoader(ClassLoader droolsClassLoader) {
        if (getParent() != droolsClassLoader) {
            this.droolsClassLoader = droolsClassLoader;
            if (CACHE_NON_EXISTING_CLASSES) {
                nonExistingClasses.clear();
            }
        }
    }
{code}

In a non flat classpath environment, the later version of drools does not allow 
the CL to get set to anything that is not an OSGi CL. 

  was:
drools-7.23 uses this code in `org.drools.core.common.ProjectClassLoader` ...

{code}
    public void setDroolsClassLoader(ClassLoader droolsClassLoader) {
        if (getParent() != droolsClassLoader && 
isOsgiClassLoader(droolsClassLoader)) {
            this.droolsClassLoader = droolsClassLoader;
            if (CACHE_NON_EXISTING_CLASSES) {
                nonExistingClasses.clear();
            }
        }
    }
{code}

drools-7.14 uses

{code}
    public void setDroolsClassLoader(ClassLoader droolsClassLoader) {
        if (getParent() != droolsClassLoader) {
            this.droolsClassLoader = droolsClassLoader;
            if (CACHE_NON_EXISTING_CLASSES) {
                nonExistingClasses.clear();
            }
        }
    }
{code}

In a non flat classpath environment, the later version of drools does not allow 
the CL to get set to anything that is not an OSGi CL. Hence, it will fail in 
any other modular environment, except OSGi.


> optaplanner-7.23 not usable in WildFly
> --------------------------------------
>
>                 Key: CAMEL-13654
>                 URL: https://issues.apache.org/jira/browse/CAMEL-13654
>             Project: Camel
>          Issue Type: Bug
>            Reporter: Thomas Diesler
>            Assignee: Thomas Diesler
>            Priority: Major
>             Fix For: 3.0.0
>
>
> drools-7.23 uses this code in `org.drools.core.common.ProjectClassLoader` ...
> {code}
>     public void setDroolsClassLoader(ClassLoader droolsClassLoader) {
>         if (getParent() != droolsClassLoader && 
> isOsgiClassLoader(droolsClassLoader)) {
>             this.droolsClassLoader = droolsClassLoader;
>             if (CACHE_NON_EXISTING_CLASSES) {
>                 nonExistingClasses.clear();
>             }
>         }
>     }
> {code}
> drools-7.14 uses
> {code}
>     public void setDroolsClassLoader(ClassLoader droolsClassLoader) {
>         if (getParent() != droolsClassLoader) {
>             this.droolsClassLoader = droolsClassLoader;
>             if (CACHE_NON_EXISTING_CLASSES) {
>                 nonExistingClasses.clear();
>             }
>         }
>     }
> {code}
> In a non flat classpath environment, the later version of drools does not 
> allow the CL to get set to anything that is not an OSGi CL. 



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