Bad version number in .class file

[Former Member]

Hi,

I'm a newbe of sap-maxdb  i installed maxdb-studio in my pcwin7 whenever i login its showing an error message like

An internal error occurred during: "Fetching children ...".

Bad version number in .class file

and what is the username and password for to login other added sapmaxdb server

Thanks in Advance

Nanda.

[former_member188883]

Hi Adoni,

What is the JRE version installed on your PC ? It looks like issue with JRE verison

ensure that you have JRE 6 installed on your PC

To login you need to use control user and its password.

Hope this helps.

Regards,

Deepak Kori

[Former Member]

hi Deepak,

        Thanks for your reply i'm using C:\Program Files (x86)\Java\jre7\ this java version i'm using.

Regards,

Nanda

[Former Member]

Hi Deepak,

I added a server by using Add Database by IP and SID and  When ever i connect sapmaxd in i'm getting this error and what is default username and password for maxdb to login

ERROR---- Catalog cannot be displayed due to:[-4008]: Unknown user name/password combination

com.sap.dbtech.jdbc.exceptions.JDBCDriverException: SAP DBTech JDBC: [-4008]: Unknown user name/password combination

    at com.sap.dbtech.jdbc.exceptions.SQLExceptionSapDB.createException(SQLExceptionSapDB.java:230)

    at com.sap.dbtech.jdbc.exceptions.SQLExceptionSapDB.generateDatabaseException(SQLExceptionSapDB.java:146)

    at com.sap.dbtech.jdbc.packet.ReplyPacket.createException(ReplyPacket.java:69)

    at com.sap.dbtech.jdbc.ConnectionSapDB.throwSQLError(ConnectionSapDB.java:1100)

    at com.sap.dbtech.jdbc.ConnectionSapDB.execute(ConnectionSapDB.java:723)

    at com.sap.dbtech.jdbc.ConnectionSapDB.execute(ConnectionSapDB.java:565)

    at com.sap.dbtech.jdbc.ConnectionSapDB.doConnect(ConnectionSapDB.java:510)

    at com.sap.dbtech.jdbc.ConnectionSapDB.<init>(ConnectionSapDB.java:134)

    at com.sap.dbtech.jdbc.ConnectionSapDBFinalize.<init>(ConnectionSapDBFinalize.java:13)

    at com.sap.dbtech.jdbc.DriverSapDB.connect(DriverSapDB.java:252)

    at java.sql.DriverManager.getConnection(Unknown Source)

    at java.sql.DriverManager.getConnection(Unknown Source)

    at com.sap.sdb.tools.usermanagement.UM_Storage.getSessionSQLWithConnectionKey(UM_Storage.java:9126)

    at com.sap.sdb.tools.usermanagement.UM_Storage.getSessionSQL(UM_Storage.java:1524)

    at com.sap.sdb.tools.usermanagement.UM_DatabaseMaxDB.getSessionSQL(UM_DatabaseMaxDB.java:137)

    at com.sap.sdb.tools.usermanagement.UM_DatabaseSession.getSessionSQL(UM_DatabaseSession.java:64)

    at com.sap.sdb.tools.resources.catalog.internal.CatalogFolder.getSQLSession(CatalogFolder.java:151)

    at com.sap.sdb.tools.resources.catalog.internal.Schemas.validateWithState(Schemas.java:136)

    at com.sap.sdb.tools.resources.base.internal.extensions.ExtensionManager.loadResourceExtensions(ExtensionManager.java:83)

    at com.sap.sdb.tools.resources.base.Resource.loadExtensions(Resource.java:618)

    at com.sap.sdb.tools.ui.resources.ResourceContentProvider$6.run(ResourceContentProvider.java:399)

    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

[former_member188883]

Hi Nanda,

Please try with user control and its default password  control.

Hope this helps.

Regards,

Deepak Kori

[Former Member]

Hi Deepak,

I tried t connect using CONTROL its showing like could not connect see eventlog for more details and  Again its showing the pop-up like

  Unkown username/password combination create login account anyway

Event log error

catalog cannot be displayed due to :[-4008]: Unknown user/name password combination

[former_member188883]

Hi Adoni,

What is your MaxDB version ?

What is the OS platform on which it has been installed ?

Regards,

Deepak Kori

[Former Member]

Hi deepak,

  maxdb version is7.9.07

and database is installed in redhat6.1. I'm able to login by using user SUPERDBA to maxdb databse studio with master password,

do you any link about db administration pdf of maxdb in dbstudio.

Regards,

nanda

[former_member188883]

Hi Nanda,

Please refer below links

SAP MaxDB: Database Administration Using Database Studio - SAP Business Continuity - SAP Library

SAP MaxDB Tools - MaxDB - SCN Wiki

http://maxdb.sap.com/training/administration_7.6/MaxDB-Admin-DBStudio-LCM263.pdf

For your issue, can you downgrade JRE to 6 and check the results.

Hope this helps.

Regards,

Deepak Kori

[Former Member]

Thanks for your reply deepak

        when ever i start the dbstudio I'm getting one popup error like

An internal error occurred during: "Fetching children ...".Bad version number in .class file

Thanks

Nanda

[former_member188883]

Hi Nanda,

For this I had suggested earlier to check with JRE 6.

Please post the test results with JRE 6 on your system.

Hope this helps.

Regards,

Deepak Kori