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
> <[email protected]> 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: [email protected] | [email protected]
> Java Persistence with Hibernate, Second Edition
> JUnit in Action, Second Edition
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