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Impala driver class not being found through Jaydebeapi Connection

I recently switched over from using a PC to a Mac and now for whatever reason one of my Impala drivers that worked fine is no longer found when run in Python. I keep receiving this error every time I run the script : "java.lang.RuntimeException: Class com.cloudera.impala.jdbc41.Driver not found". Please see code snippet for my connection below.
c = jaydebeapi.connect
(jclassname='com.cloudera.impala.jdbc41.Driver',
url='jdbc:impala://cloudera-impala-proxy.live.bi.xxx/;AuthMech=3;ssl=1;',
driver_args=['xxx', self.dwh_password], jars='/Users/xxx/Desktop/ImpalaJDBC41 2.jar')
Any help or suggestions are appreciated, I feel like I'm going crazy trying to get this to work.

Did you check do you have the ImpalaJDBC***.jar in your new machine.
Please check properly weather it's available at classpath/build path or not.
Edit:
You can use hive jdbc jar as well to connect with impala , just use the port of impala rather hive in jdbc url.

Looking at this error means your jar is corrupt.
First check your impalaJDBC jar
java -jar ImpalaJDBC<version>.jar
If it gives you error that means your jar is corrupt.
Download the correct jar from cloudera

exception while connecting SciDB via JDBC

I am using SciDB 12.04, Ubuntu 12.04 protobuf-java-2.6.1
I am traying to connect the Java code with SciDB .. So i installed JDBC14.12
I follow the instruction inside the manual , when i tried the sample code test (as descibed at the manual) I got this error :
java.sql.SQLException: java.lang.UnsupportedOperationException: This is supposed to be overridden by subclasses.

I found the solution... thank u for ur suggestions ..
I sloved the problem in 2 steps:
use java 1.6 rather than 1.7
use libprotobuf-java 2.4.1-1ubuntu2 rather than protobuf-java-2.6.1
So it was versions conflict problem

Problems with jCifs authentication on oracle RDMS embedded jvm

I'm using jCifs 1.3.17 to connect and list files on remote windows share.
Everything works fine on my local JRE(5,6,7), but the same code executed on oracle 11g database (11.2.0.3.0) crashes with following stack:
jcifs.smb.SmbAuthException: Logon failure: unknown user name or bad
password. at
jcifs.smb.SmbTransport.checkStatus(SmbTransport.java:546) at
jcifs.smb.SmbTransport.send(SmbTransport.java) at
jcifs.smb.SmbSession.sessionSetup(SmbSession.java) at
jcifs.smb.SmbSession.send(SmbSession.java:218) at
jcifs.smb.SmbTree.treeConnect(SmbTree.java:176) at
jcifs.smb.SmbFile.doConnect(SmbFile.java:911) at
jcifs.smb.SmbFile.connect(SmbFile.java:954) at
jcifs.smb.SmbFile.connect0(SmbFile.java:880) at
jcifs.smb.SmbFile.exists(SmbFile.java) at
pl.openlife.CifsConnect.listCIFSFiles(CifsConnect.java:49)
I found out, that user password lenght might cause the problem:
1. Windows env jdk1.5.0_22 -> works with long passwords
2. Oracle linux, RDMS embeded JVM -> works with short password only (8 characters)
3. Oracle linux, RDMS embeded JVM -> long password fails with error shown above.
Sample code:
NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication(domain,
username,
password);
SmbFile dir = new SmbFile(path,auth);
if(!dir.exists()){
// ABOVE CHECK FAILS
}
I heard somewhere about problems with oracle embedded jvm and bugs in JCE, but this shouldn't be the case, as jcifs have its own implementation of algorithms such as RC4 or DES. Does anyone have a clue what can be the case? Is there a way to walk this around?

Unfortunately I didn't find any answer to the issue mentioned above.
As a walkaround, I have used older version of jcifs (jcifs-1.2.25), which seems to work properly with oracle db embedded jvm.
UPDATE:
I have imported jcifs lib again (1.3.17) and it is working like a charm. I ended up with conclusion, that the java library was not imported properly. Reimport (loadjava) with option "-force" and manual compilation of invalid objects solves the problem always, but (I cant't figure why) in my case it must be loaded in following order :
1. Load my program lib (will cause errors)
2. Load jcifs lib with force option
3. compile and resolve
It seems that oracle jvm is unpredictable :)

Java Stored Procedure using MQ

I need to create a Java stored procedure in Oracle. I have used IBM's sample class for creating an MQ message from a simple class outside of Java EE environment. I have tested the class by itself and it is working.
My Oracle vesrion is 11i.
When I am trying to add the jars used in the simple application to load to Oralce along with my simple class, I am getting errors about class not found, even if same jars work with the test case. I am stuck with this for over a week and am desperately hoping that someone would be able to help me with it.
Kinds of errors I am getting are like this from -v flag with loadjava utility on the client
on line 326 / 327, you see this:
creating : class com/ibm/mq/jms/admin/AP loading : class
com/ibm/mq/jms/admin/AP
and then at the end starting from line 6224 to end, it indicates that the above class can’t be resolved:
com/ibm/mq/jms/admin/APRCXI: ORA-29534: referenced object
xxxx.com/ibm/mq/jms/admin/AP could not be resolved
com/ibm/mq/jms/admin/APSDX: ORA-29534: referenced object xxxx.com/ibm/mq/jms/admin/AP could not be resolved exiting : errors
resolving class com/ibm/mq/jms/admin/AP
the command I used is:
c:\Oracle\product\11.2.0\client_1\bin\loadjava.bat -f -jarsasdbobjects
-prependjarnames -stoponerror -u xxxx/yyyy#SID -v -resolve lib\jms.jar lib\com.ibm.mqjms.jar lib\com.ibm.mq.jmqi.jar lib\dhbcore.jar
lib\fscontext.jar src\com\test\javasp\mq\JmsProducer.java
I also tried with -genmissing option with some additional jars ( list I found here ), but still get similar error for a different class.
Other issue with this that I am facing is that if I get an error and try to use the dropjava command from Oracle, it doesn't work either.
I also saw from this link, that this person was successful, but unfortunately, he/she didn't indicate how they used loadjava to load the jars.
If i can provide any other information, please let me know.
If anyoneone has any idea on how to get the Java Stored Procedure to use IBM MQ working with Oracle 11i, I would really appreciate the help.

Found a detailed answer in this blog entry. I tried it and it worked for me.

In Oracle there is no concept of CLASSPATH, so the standard MQ Client install is useless. You can only load the jars reference by your app within the database schema. Classes are resolved when loaded with the -r option. You can further on specify your own resolved using -r -Resolver (schemas). (check Oracle docs for exact format). So in effect the database schemas becomes the classpath.
Using Websphere MQ classes for Java poses a number of problems, you have to ensure that the Oracle JDK version is at an appropriate support level to connect to the chosen MQ server version. Check the system requirements for websphere MQ Vx.x. You should find IBM's web references. check the support for MQ classed for java.
I have such an issue at the moment trying to connect to Mq using Oracle 10 and JDK 1.4.2. I had to recompile my Java code using JDK 1.4.x. This does not work and I assume it is because I connect to MQ 7.0.1.7 which requires JRE 1.7 as minimum.

Trying to install Sean Corfield's scripting for ColdFusion project, getting class not found errors

Hi I'm trying to install this tool 'Sean Corfield's scripting for ColdFusion project.' on my server - problem is I am getting "Class not found: com.caucho.quercus.script.QuercusScriptEngineFactory " errors, I have java 1.6 installed.... I'm not sure how where to get these extra classes ... any help?
[opensuse 11 system, CF8 java 1.6]
-thanks
-sean

Did you follow the installation instructions for the cfphp, as per the "example.cfm" page:
Installation:
1. Copy lib/quercus.jar and lib/resin-util.jar to WEB-INF/cfusion/lib/
(multiserver) or coldfusion8/lib (standalone)
2. Restart ColdFusion 8.
3. Optionally copy customtags/php.cfm into your custom tags path.
The important thing is that the quercus.jar is accessible to the JVM. Your error message indicates that the JVM can't find the jar.