OracleJDBC driver and Tomcat java.sql.SQLException: No suitable driver - oracle

I'm using oracle JDBC driver in a dynamic web application have this exception
...
Caused by: java.sql.SQLException: No suitable driver
at java.sql.DriverManager.getDriver(DriverManager.java:315)
at com.zaxxer.hikari.util.DriverDataSource.<init>(DriverDataSource.java:106)
... 56 more
however the driver should be correctly loaded while deployment
a picture showing Deployment Assembly property with oracle driver in it
Edit: eclipse show me this warning after cleaning the project
Classpath entry xxxx/ojdbc6.jar will not be exported or published. Runtime ClassNotFoundExceptions may result. service P/service Classpath Dependency Validator Message
Edit: information about my system:
1- tomcat 8.5: I've the driver in $CATALINA_HOME/lib btw
2- oracle 11g [ojdbc6]: with HikariCP
3- eclipse 4.14.0: +maven using jersey webapp archetype
Edit: it worked previously with a normal (not web) project
Edit: this is how i had configured the datasource
config.setJdbcUrl(jdbcUrl);
config.setUsername(username);
config.setPassword(passsword);
config.addDataSourceProperty( "cachePrepStmts" , "true" );
config.addDataSourceProperty( "prepStmtCacheSize" , "250" );
config.addDataSourceProperty( "prepStmtCacheSqlLimit" , "2048" );
// config.addDataSourceProperty("driverClassName", "oracle.jdbc.driver.OracleDriver");
config.setDriverClassName("oracle.jdbc.driver.OracleDriver")
}
ds = new HikariDataSource(config);
//some code

The only thing that worked for me so far is adding ojdbc6.jar manually to jvm libraries /lib/jvm/java-8-openjdk/jre/lib/ext then rebooting my machine. i know this screams BAD PRACTICE! because others will have to that too. i won't accept this answer, and waiting for a good solution.

Can you take a look at Tomcat Servlet ?

Related

How to setup embeded Jetty to use JDBC sessions

I am using embedded jetty (group: 'org.eclipse.jetty', name: 'jetty-webapp', version: '9.4.27.v20200227') and I am trying to programmatically setup it to use JDBC for session storage. All the documentation/examples I can find is about standalone jetty.
Do you know how to setup it?
I don't know all that much about JDBC or session storage, but looking at the documentation Persistent Sessions: JDBC for standalone jetty, it is telling you to enable the module session-store-jdbc. By looking at session-store-jdbc.mod you can see that it uses etc/sessions/jdbc/session-store.xml and these XML files can be directly translated into java code.
So it looks like its adding a JDBCSessionDataStoreFactory as a bean onto the server. So some equivalent code that you could try would look something like:
// Configure a JDBCSessionDataStoreFactory.
JDBCSessionDataStoreFactory sessionDataStoreFactory = new JDBCSessionDataStoreFactory();
sessionDataStoreFactory.setGracePeriodSec(3600);
sessionDataStoreFactory.setSavePeriodSec(0);
sessionDataStoreFactory.setDatabaseAdaptor(...);
JDBCSessionDataStore.SessionTableSchema schema = new JDBCSessionDataStore.SessionTableSchema();
schema.setAccessTimeColumn("accessTime");
schema.setContextPathColumn("contextPath");
// ... more configuration here
sessionDataStoreFactory.setSessionTableSchema(schema);
// Add the SessionDataStoreFactory as a bean on the server.
server.addBean(sessionDataStoreFactory);

JDBC DatabaseMetaData method not implemented by JDBC(T4SQLMX) driver

I am setting up a Spring-boot application to connect to HP NonStop Tandem's SQL/MX. First I achieved this connection by hard-coding the jdbc parameters like dataSource, URL, etc in the service section of the application and it worked (I was able to access tables by executing query).
Now I am trying to remove the hard coded part and have my database related info in application.properties file, but now I am getting the following error
org.springframework.jdbc.support.MetaDataAccessException: JDBC DatabaseMetaData method not implemented by JDBC driver - upgrade your driver; nested exception is java.lang.AbstractMethodError: Method com/tandem/t4jdbc/SQLMXConnection.isValid(I)Z is abstract
Can someone help me understand the root cause? The same driver jar is being used when hard-coding the datasource details and it worked but not working when having the data source properties in application.properties and needs an upgrade to the jar.
I encountered the same exception when using Spring Data JPA in a Spring Boot application, the JTDS driver and the Hikari connection pool. In my case I discovered that the following fixed the problem:
Examining the class com.zaxxer.hikari.pool.PoolBase, the following can be observed:
this.isUseJdbc4Validation = config.getConnectionTestQuery() == null;
Thus JDBC 4 validation will not be attempted if there is a connection test query configured. In a Spring Boot application, this can be accomplished like this:
spring.datasource.hikari.connection-test-query=select 1;
Regretfully I do not have any experience with the T4SQLMX driver but nevertheless hope this can be of some use.
I recently fought through the same issue, for me I was using a JDBC type 3 driver; but my spring implementation only supported a type 4 driver, thus when the method you linked above was attempted to be called, it caused the error.
I suggest you look for a type 4 driver for your particular database and see if that resolves your issue.

IllegalTransactionStateException when running in Jetty

I have a WAR application as follows:
JPA/Hibernate 4.1.9.Final
Hibernate Envers 4.1.9.Final
Spring 3.1.3.RELEASE
Spring MVC with JSON/REST
My frontend (web page) makes a request, this leads to a new entity to be saved (this seems to succeed in any case) and then Envers will save corresponding revision info.
Typical deployment is in Tomcat 7, where this works just fine.
For unit testing I spin up a Jetty (8.1.9.v20130131) programmatically, which fails. It baffles me why this behavior is different. I can only imagine that Jetty has a different (lesser standard, perhaps) transaction management on board than Tomcat, but I've failed to pin it down or otherwise work around this.
Below is how I create the web application programmatically:
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration({"classpath:applicationContext.xml" })
public class AddCustomerTest {
And:
server = new Server(serverPort);
WebAppContext webAppContext = new WebAppContext();
webAppContext.setContextPath("/webapp");
webAppContext.setWar("src/main/webapp");
webAppContext.setServer(server);
server.setHandler(webAppContext);
Below is the essential exception that I'm getting:
Caused by: org.springframework.transaction.IllegalTransactionStateException: No existing transaction found for transaction marked with propagation 'mandatory'
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:357)
at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:334)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy115.getByUuid(Unknown Source)
at com.totaalsoftware.incidentmanager.entity.audit.RevisionEntityListener.setUser(RevisionEntityListener.java:53)
at com.totaalsoftware.incidentmanager.entity.audit.RevisionEntityListener.instanceNewRevision(RevisionEntityListener.java:40)
at com.totaalsoftware.incidentmanager.entity.audit.RevisionEntityListener.newRevision(RevisionEntityListener.java:34)
at org.hibernate.envers.revisioninfo.DefaultRevisionInfoGenerator.generate(DefaultRevisionInfoGenerator.java:95)
at org.hibernate.envers.synchronization.AuditProcess.getCurrentRevisionData(AuditProcess.java:124)
at org.hibernate.envers.synchronization.AuditProcess.executeInSession(AuditProcess.java:106)
at org.hibernate.envers.synchronization.AuditProcess.doBeforeTransactionCompletion(AuditProcess.java:155)
at org.hibernate.engine.spi.ActionQueue$BeforeTransactionCompletionProcessQueue.beforeTransactionCompletion(ActionQueue.java:662)
... 80 more
My RevisionEntityListener looks up some user data (from the database, using Hibernate of course). Clearly there's no transaction available, but only when running in Jetty. I've tried marking the RevisionEntityListener transactional in various ways, to no avail.
Let me know if you need any other info. Your help much appreciated!
Stupid me...
The following two lines were copied over from some other test class:
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration({"classpath:applicationContext.xml" })
These two lines served no purpose since the entire application was loaded through the instantiation and configuration of Jetty. But somehow the above clashed with the application in the Jetty server, probably due to being in the same JVM. Removing the above two lines from the test class fixed it!

How to use HSQLDB as a datasource in Websphere Application Server?

I try to set up a local development infrastructure and I want to use HSQLDB as a datasource with my WAS 6.1. I already know that I have to use Apache DBCP to get a connection pooling, but I'm stuck when my application tries to get the first connection.
What I've done
In WAS I created a JDBC provider with the class org.apache.commons.dbcp.cpdsadapter.DriverAdapterCPDS and removed everything from the classpath input field. Then I put commons-dbcp.jar, commons-pool.jar and hsqldb.jar in MYAPPSERVERDIRECTORY/lib/ext.
Then I created a new datasource with that provider. I added the following custom properties:
driver=org.hsqldb.jdbc.JDBCDriver
url=jdbc:hsqldb:file:///C:/mydatabase.db;shutdown=true
user=SA
password=
My Problem
When I run my application and the first connection to the database is made, I get the following exception:
---- Begin backtrace for Nested Throwables
java.sql.SQLException: No suitable driverDSRA0010E: SQL-Status = 08001, Fehlercode = 0
at java.sql.DriverManager.getConnection(DriverManager.java:592)
at java.sql.DriverManager.getConnection(DriverManager.java:196)
at org.apache.commons.dbcp.cpdsadapter.DriverAdapterCPDS.getPooledConnection(DriverAdapterCPDS.java:205)
at com.ibm.ws.rsadapter.spi.InternalGenericDataStoreHelper$1.run(InternalGenericDataStoreHelper.java:918)
at com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java:118)
at com.ibm.ws.rsadapter.spi.InternalGenericDataStoreHelper.getPooledConnection(InternalGenericDataStoreHelper.java:955)
at com.ibm.ws.rsadapter.spi.WSRdbDataSource.getPooledConnection(WSRdbDataSource.java:1437)
at com.ibm.ws.rsadapter.spi.WSManagedConnectionFactoryImpl.createManagedConnection(WSManagedConnectionFactoryImpl.java:1089)
at com.ibm.ejs.j2c.FreePool.createManagedConnectionWithMCWrapper(FreePool.java:1837)
at com.ibm.ejs.j2c.FreePool.createOrWaitForConnection(FreePool.java:1568)
at com.ibm.ejs.j2c.PoolManager.reserve(PoolManager.java:2338)
at com.ibm.ejs.j2c.ConnectionManager.allocateMCWrapper(ConnectionManager.java:909)
at com.ibm.ejs.j2c.ConnectionManager.allocateConnection(ConnectionManager.java:599)
at com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource.getConnection(WSJdbcDataSource.java:439)
at com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource.getConnection(WSJdbcDataSource.java:408)
Any tips on this? I suspect I'm using a wrong class from hsqldb, or maybe my JDBC url is wrong...
In the example given in BDCP docs, the org.hsqldb.jdbcDriver class is used as the driver. The org.hsqldb.jdbc.JDBCDriver is supported only in HSQLDB 2.x, but the other class is supported by all versions of HSQLDB.

Accessing JNDI from within Eclipse OSGI bundle, hosted in WebSphere App Server

I have a problem accessing JNDI resources from within an OSGI bundle, hosted in
WebSphere Application Server (WAS) using a servlet bridge.
It is failing on creating the JNDI initial context. My code is:
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,
"com.ibm.websphere.naming.WsnInitialContextFactory");
InitialContext ctx = new InitialContext(env);
This fails with:
javax.naming.NoInitialContextException:
Failed to create InitialContext using factory specified in hashtable {java.naming.provider.url=corbaloc:rir:/NameServiceServerRoot, java.naming.factory.initial=com.ibm.websphere.naming.WsnInitialContextFactory, java.naming.factory.url.pkgs=com.ibm.ws.naming:com.ibm.ws.runtime:com.ibm.iscportal.jndi} [Root exception is java.lang.NullPointerException]
When I run the same code directly within a WAR module (not using OSGI), it is successful. I assume therefore the problem is something about accessing JNDI from within OSGI.
I have seen some references to Class Loader problems when accessing JNDI from within OSGI ... not sure if this is my problem, since the above exception does not explicitly relate to class loading, but maybe it is. Anyhow, if this is the problem, I am not sure how to fix it!
Is it in fact possible to access JNDI and JDBC entries set up within WAS, from within my OSGI module?
My application is an Eclipse RAP (Rich Ajax Plugin), packaged into a WAR file using the Eclipse WAR Product Tooling described at:
http://eclipsesource.com/blogs/2010/08/17/equinoxrap-war-deployment-an-end-to-the-pain/
This works successfully so far, apart from the JNDI access.
Many thanks
David
By default the thread context classloader will be used to load the InitialContextFactory. This is probably (but no guarantee) your bundle's classloader. You have a couple of options:
Configure the org.osgi.framework.bootdelegation property. This is probably implicitly set to sun.,com.sun. so you want to change it to be sun.,com.sun.,com.ibm.websphere.naming.* I believe this can be set in the servlet bridge wars WEB-INF/launch.ini
You could also import comibm.websphere.naming which would require you to add to the launch.ini org.osgi.framework.system.packages.extra=com.ibm.websphere.naming
Either should work.
Good luck.

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