We Keep Coding

MonetDB COPY INTO java.lang.NoSuchMethodError with new JDBC 3.0 driver

I'm trying to do a MonetDB "COPY INTO" statement inside Pentaho 8.1 (JDK 1.8.0_282) with new MonetDB JDBC 3.0 driver, and I get this, error message:
java.lang.NoSuchMethodError: java.nio.CharBuffer.mark()Ljava/nio/CharBuffer;
Everything works perfectly when I use MonetDB JDBC driver 2.8 or even 2.29. Does anyone know what is happening?
Thank you!

You also fell into the Java 8 vs Java 9 API break. This issue was fixed here: https://dev.monetdb.org/hg/monetdb-java/rev/5ddfc0aa7f0e You can either use Java 9+ to get rid of the error, or download the tip of MonetDB JDBC driver source and install it or just wait for the next release.

The issue has been fixed in new release: monetdb-jdbc-3.1.jre8.jar
See ChangeLog at https://www.monetdb.org/downloads/Java/

RJDBC, Java connection to Oracle database crashing

I have a script that opens with some code to start a connection to an Oracle database, however the code is crashing RStudio as soon as it runs. The exact code was run successfully on another machine previously.
The script opens by loading the required RJDBC package:
library("RJDBC", lib.loc="C:/R/library")
After, this I run the code below:
drv = JDBC("oracle.jdbc.OracleDriver", classPath="C:/R/ojdbc7.jar", identifier.quote = " ")
however this crashes Rstudio - there is no error statement, the program simply crashes stating that "R encountered a fatal error . The session was terminated." When I attempt run this at the command line in regular R (not RStudio) it crashes also.
If this is being caused by some conflict between R and machine, is there a way to determine what is causing it?
Thanks

I had exactly the same problem, having just upgraded my Java distribution from v6 to v8 (both Java Runtime and Java Developer Kit, running on Windows 7). I don't what the reason is, but after reinstalling v6 (and keeping v8), the problem was resolved.

In also encountered this problem but in my case the issue was that I had previously set JAVA_HOME in ~/.Renviron that did not match the version in place when rJava was installed. Simply removing JAVA_HOME was the fix in my case.

I was also experiencing the same sort of crash trying to connect to SQL Server.
Setting the JAVA_HOME variable as described https://www.r-bloggers.com/connecting-r-to-an-oracle-database-with-rjdbc/ the crashes went away:
Sys.setenv(JAVA_HOME='C:/Program Files/Java/jdk1.8.0_172')
library(RJDBC)
drv <- JDBC("com.microsoft.sqlserver.jdbc.SQLServerDriver",
"c:/Microsoft JDBC Driver 6.4 for SQL Server/sqljdbc_6.4/enu/mssql-jdbc-6.4.0.jre8.jar")

Netbeans JDBC Error "Unable to find suitable driver" after JDK update

I recently upgraded my jdk from 6 to 8 when I installed Eclispe for Android. Now, in NetBeans when I try to right click on the node for the database and select connect, I get the following error:
"Unable to connect. Cannot establish a connection to jdbc:derby://localhost 1527:/Animal using org.apache.derby.jdbc.ClientDriver (Unable to find a suitable driver)."
So far, I have tried uninstalling Eclipse and reinstalling Netbeans and that didn't work. I'm not getting any errors in my code aside from a popup that says the project is missing resources. Could someone please provide instructions on how to solve this issue? I've looked on the NetBeans' website and on this forum and there doesn't seem to be a clear procedure for resolving this.

If that's not a typo on your part your JDBC URL is malformed:
jdbc:derby://localhost 1527:/Animal
That's what I copied from your question. However, the correct URL would look like
jdbc:derby://localhost:1527/Animal
With the colon before the port, not after.
At Netbeans already states that this driver was tried but failed I'm quite sure it's got nothing to do with your driver setup. But if you want todouble check:
Here's a tutorial on how to add and enable oracle thin driver. I'd think it will work the same way for derby drivers.

I solved it in the following way:
The driver that you use to connect to the database may have deleted it or changed your address. So that:
You must put it back in the address that was indicated in the databases driver>
Drivers> (driver you use to connect)
Indicate the new address where you are
The error is in the path you are specifying in the driver or in the connection.

I had the same problem when trying to connect MySQL server to NetbeansIDE. Turns out the jdbc connector was an old version. You can read about the MySQL connector versions here. Either
download the latest version of MySQL connector or
add a new driver.
My problem was solved by adding a new driver.

Error in export to excel in oracle forms11g

I am using oracle forms 11g,weblogic 10.3.6 and java 1.7
I have tested webutil_demo, that worked successfully.
After that, I have implement a oracle form for export to excel functionality using webutil.
This form worked fine on server machine.
but other than server machine it gives an following Error:
oracle.forms.webutil.ole.OleFunctions bean not found.
CLIENT_OLE2.create_obj will not work
Note : on server machine, webutil_demo also worked fine.
I dont understand why this error.So please help me for solve this problem.

This error occurs when you have not imported webutil.pll and webutil.olb(do import "WEBUTILCONFIG" parameter and "WEBUTIL" Object group, webutil.pll and webutil.olb are available in Oracle installation directory say "C:\Oracle\Middleware\\forms") on your form.
If you dont want OLE functionality on your form, in that case import the object group of the name "WEBUTIL_NO_OLE".

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.