https://github.com/mongodb/mongo-java-driver/blob/master/src/main/com/mongodb/MongoException.java
 shows an import for org.bson.BSONObject.  The pom.xml for mongo-java-driver 
doesn't contain a transitive dependency for that and mvn dependency:tree on 
core doesn't show it.

Ralph


On Aug 16, 2013, at 3:48 PM, Nick Williams wrote:

> Guys, I'm having a hard time with this simple fix that should have taken five 
> minutes. I'm getting test failures due to NoClassDefFoundErrors that 
> shouldn't happen.
> 
> Here are the tests in error:
>   CategoryTest.setupClass:52 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.testTraceWithException:415 ? NoClassDefFound 
> com/mongodb/MongoExcep...
>   LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.testLog:459 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.testRB1:295 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.testRB2:314 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.testRB3:334 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.testTrace:388 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.testAdditivity1:119 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.testAdditivity2:144 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.testAdditivity3:183 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.testIsTraceEnabled:443 ? NoClassDefFound 
> com/mongodb/MongoException
>   LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.testExists:355 ? NoClassDefFound com/mongodb/MongoException
>   LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>   LoggingTest.setupClass:44 ? NoClassDefFound com/mongodb/MongoException
>   LoggingTest.cleanupClass:49 NullPointer
> 
> Here's the code I added:
> 
>                 try {
>                     if (!database.authenticate(username, 
> password.toCharArray())) {
>                         LOGGER.error("Failed to authenticate against MongoDB 
> server. Unknown error.");
>                     }
>                 } catch (MongoException e) {
>                     LOGGER.error("Failed to authenticate against MongoDB: " + 
> e.getMessage(), e);
>                 } catch (IllegalStateException e) {
>                     LOGGER.error("Factory-supplied MongoDB database 
> connection already authenticated with different" +
>                             "credentials but lost connection.");
>                 }
> 
> Problem is, "database" is an instance of com.mongodb.DB, which is in the same 
> JAR as com.mongodb.MongoException. If I remove this code, the tests pass. How 
> is this possible? The DB instance is there with or without this new code, 
> which means the JAR is on the classpath, which means MongoException should be 
> on the classpath.
> 
> Very confused...
> 
> Nick
> 
> On Aug 16, 2013, at 5:13 PM, Gary Gregory wrote:
> 
>> Thank you for the update Nick!
>> :)
>> Gary
>> 
>> 
>> On Fri, Aug 16, 2013 at 5:39 PM, Nick Williams 
>> <nicho...@nicholaswilliams.net> wrote:
>> Answers inline.
>> 
>> On Aug 14, 2013, at 2:10 AM, YuCheng Ting wrote:
>> 
>>> Hi all,
>>> 
>>> I use beta8 log4j2 and wrote log4j2.xml like example in document 
>>> (http://logging.apache.org/log4j/2.x/manual/appenders.html#NoSQLAppender ):
>>> 
>>> 
>>> <appenders>
>>>     <NoSql name="databaseAppender">
>>>         <MongoDb databaseName="applicationDb" 
>>> collectionName="applicationLog"
>>>             server="mongo.example.org"
>>>             username="loggingUser" password="abc123" />
>>>     </NoSql>
>>> </appenders>
>> 
>> Yep. That's correct.
>> 
>>> but I get the two exception:
>>> 
>>> 1, "can't serialize class org.apache.logging.log4j.Level" exception in 
>>> (BasicBSONEncoder.java:270), I read the code and add follow code in my 
>>> project before logging, it gone.
>>> 
>>>         BSON.addEncodingHook(org.apache.logging.log4j.Level.class, new 
>>> Transformer() {
>>>             @Override
>>>             public Object transform(Object o) {
>>>                 return o.toString();
>>>             }
>>>         });
>> 
>> This bug was reported and fixed a few weeks ago. The fix will be in the next 
>> version, or you can compile locally. 
>> https://issues.apache.org/jira/browse/LOG4J2-330
>> 
>>> 2, “not authorized for insert test.log”, because my MongoDB need auth to 
>>> write, but the the "username" and "password" attributes in log4j2.xml is 
>>> nearly useless, after I read source code, found it NOT auth in 
>>> 
>>> org.apache.logging.log4j.core.appender.db.nosql.mongo.MongoDBProvider.createNoSQLProvider
>>> source code line 181 after check username and password and 
>>> com.mongodb.DB.authenticate never be called.
>> 
>> This is a bug. I'm reporting it and fixing it now. The fix will be in the 
>> next version, or you can compile locally (after I get the change committed, 
>> of course).
>> 
>>> so I change log4j2.xml :
>>> 
>>> <NoSql name="mongodb">
>>>              <MongoDb collectionName="log" databaseName="test"
>>>                          factoryClassName="com.yuchs.test.log4j.MainTest"
>>>                         factoryMethodName="getMongoClient" />
>>> </NoSql>
>>> 
>>> and create MongoClient and call com.mongodb.DB.authenticate method in 
>>> com.yuchs.test.log4j.MainTest.getMongoClient.
>>> 
>>> 
>>> This is my question:
>>> 
>>> 1, Why not add BSON.addEncodingHook code into log4j2 project to avoid basic 
>>> exception ? or another rule of method I don't know ?
>>> 
>>> 2, Why not auth DB in log4j2 project if password and username is set in 
>>> log4j2.xml ? or another rule of method I don't know ?
>>> 
>>> Thanks everyone!
>>> 
>> 
>> 
>> 
>> 
>> -- 
>> E-Mail: garydgreg...@gmail.com | ggreg...@apache.org 
>> Java Persistence with Hibernate, Second Edition
>> JUnit in Action, Second Edition
>> Spring Batch in Action
>> Blog: http://garygregory.wordpress.com 
>> Home: http://garygregory.com/
>> Tweet! http://twitter.com/GaryGregory
> 

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