Link to home
Start Free TrialLog in
Avatar of cofactor
cofactor

asked on

java.lang.UnsupportedClassVersionError

Error:

Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class com.microsoft.sqlserver.jdbc.SQLServerDriver)


I am using  java 1.5 &  sqljdbc.jar to connect to sql server 2005 database

Could you please tell what might have gone wrong ?
Avatar of CEHJ
CEHJ
Flag of United Kingdom of Great Britain and Northern Ireland image
Check that the Java version of the driver is not > 1.5
Avatar of cofactor
cofactor

ASKER

>>>Check that the Java version of the driver is not > 1.5

How do I do that ?  I just have the sqljdbc.jar file only.  

 Is there any way to check the Java version of this driver ? Please let me know.
Avatar of cofactor
cofactor

ASKER

I see this link from microsoft site..

https://msdn.microsoft.com/en-us/library/ms378422(v=sql.110).aspx

it says sqljdbc.jar   does work in jdk 5

So where is the issue ?


Here is the full stacktrace of this issue:

Failed to obtain DB connection from data source 'testDS': org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.microsoft.sqlserver.jdbc.SQLServerDriver'<br/>
org.quartz.JobPersistenceException: Failed to obtain DB connection from data source 'testDS': org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.microsoft.sqlserver.jdbc.SQLServerDriver' [See nested exception: org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.microsoft.sqlserver.jdbc.SQLServerDriver']
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.getConnection(JobStoreSupport.java:575)
	at org.quartz.impl.jdbcjobstore.JobStoreTX.getTriggerGroupNames(JobStoreTX.java:732)
	at org.quartz.core.QuartzScheduler.getTriggerGroupNames(QuartzScheduler.java:1135)
	at org.quartz.impl.StdScheduler.getTriggerGroupNames(StdScheduler.java:511)
	at com.pwc.cee.pais.app.global.commonutil.QuartzScheduler.cleanUp(QuartzScheduler.java:41)
	at com.pwc.cee.pais.app.global.commonutil.QuartzScheduler.run(QuartzScheduler.java:74)
	at com.pwc.cee.pais.web.global.servlet.PwcInitServlet.setMailScheduler(PwcInitServlet.java:144)
	at com.pwc.cee.pais.web.global.servlet.PwcInitServlet.init(PwcInitServlet.java:44)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3996)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4266)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:448)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
* Nested Exception (Underlying Cause) ---------------
org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.microsoft.sqlserver.jdbc.SQLServerDriver'
	at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:766)
	at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540)
	at org.quartz.utils.PoolingConnectionProvider.getConnection(PoolingConnectionProvider.java:172)
	at org.quartz.utils.DBConnectionManager.getConnection(DBConnectionManager.java:111)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.getConnection(JobStoreSupport.java:553)
	at org.quartz.impl.jdbcjobstore.JobStoreTX.getTriggerGroupNames(JobStoreTX.java:732)
	at org.quartz.core.QuartzScheduler.getTriggerGroupNames(QuartzScheduler.java:1135)
	at org.quartz.impl.StdScheduler.getTriggerGroupNames(StdScheduler.java:511)
	at com.pwc.cee.pais.app.global.commonutil.QuartzScheduler.cleanUp(QuartzScheduler.java:41)
	at com.pwc.cee.pais.app.global.commonutil.QuartzScheduler.run(QuartzScheduler.java:74)
	at com.pwc.cee.pais.web.global.servlet.PwcInitServlet.setMailScheduler(PwcInitServlet.java:144)
	at com.pwc.cee.pais.web.global.servlet.PwcInitServlet.init(PwcInitServlet.java:44)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3996)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4266)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:448)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class com.microsoft.sqlserver.jdbc.SQLServerDriver)
	at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1964)
	at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:933)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1405)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1284)
	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:164)
	at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:760)
	... 28 more

Open in new window

Avatar of cofactor
cofactor

ASKER

comments please.
Avatar of CEHJ
CEHJ
Flag of United Kingdom of Great Britain and Northern Ireland image
To be certain, extract the driver to a temporary directory first
ASKER CERTIFIED SOLUTION
Avatar of CEHJ
CEHJ
Flag of United Kingdom of Great Britain and Northern Ireland image
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of cofactor
cofactor

ASKER

Excellent
Avatar of CEHJ
CEHJ
Flag of United Kingdom of Great Britain and Northern Ireland image
:)