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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: Unable to access Global JNDI Resource
Date Fri, 30 Sep 2016 16:02:43 GMT
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Chinoy,

On 9/30/16 8:34 AM, Chinoy Gupta wrote:
> Hi Mark,
> 
> The following is added in server.xml:
> 
> <GlobalNamingResources> <!-- Editable user database that can also
> be used by UserDatabaseRealm to authenticate users --> <Resource
> name="UserDatabase" auth="Container" 
> type="org.apache.catalina.UserDatabase" description="User database
> that can be updated and saved" 
> factory="org.apache.catalina.users.MemoryUserDatabaseFactory" 
> pathname="conf/tomcat-users.xml" />
> 
> <Environment name="my/secret/password" value="JohnDoe"
> type="java.lang.String"/> </GlobalNamingResources>
> 
> And the following is added in context.xml:
> 
> <Environment name="my/local/test" value="local test"
> type="java.lang.String" override="false"/> <ResourceLink
> name="my/secret/password" global="my/secret/password"
> type="java.lang.String" />
> 
> If I try to get "my/local/test", it works and I get "local test".
> But if I try to get " my/secret/password", it returns NULL.

You aren't mapping it correctly.

Please have another look at the documentation for <ResourceLink>.

- -chris

> -----Original Message----- From: Mark Thomas
> [mailto:markt@apache.org] Sent: Friday, September 30, 2016 6:00 PM 
> To: Tomcat Users List <users@tomcat.apache.org> Subject: Re: Unable
> to access Global JNDI Resource
> 
> On 30/09/2016 13:20, Chinoy Gupta wrote:
>> Hi Mark,
>> 
>> This is my stacktrace:
>> 
>> ResourceLinkFactory.validateGlobalResourceAccess(String) line:
>> 109 ResourceLinkFactory.getObjectInstance(Object, Name, Context,
>> Hashtable<?,?>) line: 142 NamingManager.getObjectInstance(Object,
>> Name, Context, Hashtable<?,?>) line: 321 
>> NamingContext.lookup(Name, boolean) line: 847 
>> NamingContext.lookup(Name) line: 158 NamingContext.lookup(Name,
>> boolean) line: 835 NamingContext.lookup(Name) line: 158 
>> NamingContext.lookup(Name, boolean) line: 835 
>> NamingContext.lookup(String) line: 172
>> 
>> validateGlobalResourceAccess function returns false and then
>> getObjectInstance returns NULL.
> 
> You haven't defined a ResourceLink.
> 
> Mark
> 
>> 
>> Regards, Chinoy
>> 
>> 
>> -----Original Message----- From: Mark Thomas
>> [mailto:markt@apache.org] Sent: Friday, September 30, 2016 5:28
>> PM To: Tomcat Users List <users@tomcat.apache.org> Subject: Re:
>> Unable to access Global JNDI Resource
>> 
>> On 30/09/2016 12:50, Chinoy Gupta wrote:
>>> I am getting NULL instead of the resource's value. I debugged
>>> the tomcat code and figured out that in
>>> ResourceLinkFactory.java, before fetching the resource there is
>>> a validation based on current classloader. That validation
>>> fails and tomcat returns NULL.
>> 
>> The above statement is not correct. If the class loader based
>> validation fails, Tomcat throws an exception. It does not return
>> null.
>> 
>> Mark
>> 
>>> 
>>> -----Original Message----- From: Mark Thomas 
>>> [mailto:markt@apache.org] Sent: Friday, September 30, 2016 4:11
>>> PM To: Tomcat Users List <users@tomcat.apache.org> Subject: Re:
>>> Unable to access Global JNDI Resource
>>> 
>>> On 30/09/2016 11:30, Chinoy Gupta wrote:
>>>> Hi,
>>>> 
>>>> I have a web application which runs on tomcat. In server.xml,
>>>> I provide some resources under "<GlobalNamingResources>
>>>> section" and then provide a ResourceLink to the same in
>>>> context.xml. And then I fetch that resource in my
>>>> application. This was working properly earlier but started
>>>> breaking with 8.0.37.
>>> 
>>> Define breaking. Ideally with a stack trace.
>>> 
>>> Mark
>>> 
>>> 
>>>> I think the reason is the extra validation check introduced
>>>> in ResourceLinkFactory class. My application has its own
>>>> classloader and when I try to fetch the JNDI resource, the
>>>> Thread's classloader is my custom one rather than the default
>>>> one. Because of that validation fails and tomcat returns
>>>> NULL. Is there a way to fix this through configuration or any
>>>> other means?
>>>> 
>>>> Regards, Chinoy
>>>> 
>>>> 
>>> 
>>> 
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>>>
>>>
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> 
> 
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