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Need help connecting Squirrel SQL Client 4.0.0 to IBM DB2

I need help negating this stack trace while trying to connect to the database:
java.net.SocketException: Invalid argument: create
at java.base/java.net.Socket.createImpl(Unknown Source)
at java.base/java.net.Socket.connect(Unknown Source)
at com.ibm.db2.jcc.t4.x.run(x.java:49)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at com.ibm.db2.jcc.t4.a0.a(a0.java:436)
at com.ibm.db2.jcc.t4.a0.<init>(a0.java:96)
at com.ibm.db2.jcc.t4.a.b(a.java:366)
at com.ibm.db2.jcc.t4.b.newAgent_(b.java:2164)
at com.ibm.db2.jcc.am.Connection.initConnection(Connection.java:839)
at com.ibm.db2.jcc.am.Connection.<init>(Connection.java:784)
at com.ibm.db2.jcc.t4.b.<init>(b.java:350)
at com.ibm.db2.jcc.DB2SimpleDataSource.getConnection(DB2SimpleDataSource.java:233)
at com.ibm.db2.jcc.DB2SimpleDataSource.getConnection(DB2SimpleDataSource.java:200)
at com.ibm.db2.jcc.DB2Driver.connect(DB2Driver.java:471)
at com.ibm.db2.jcc.DB2Driver.connect(DB2Driver.java:113)
at net.sourceforge.squirrel_sql.fw.sql.SQLDriverManager.getConnection(SQLDriverManager.java:147)
at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.executeConnect(OpenConnectionCommand.java:148)
at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.lambda$execute$0(OpenConnectionCommand.java:93)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
I've tried googling the best I'm capable of, but cannot figure out what is causing this. Tried changing file/folder permissions to remove any write protection. Tried new drivers from IBM as well, for version 11.5, but same error persists. (With both db2jcc.jar and db2jcc4.jar)
The connection works just fine with an older version of Squirrel, relying on Java 1.7. Version 4.0.0 runs with Java 9, starts just fine, but just won't connect to the database.

As of September 2019 Db2 for LUW 11.5 ships with and lists among supported software Java 8, which you should take to mean that Java 9 is not officially supported and should not be used.

updating scala jar (lang:scala-library:jar:2.7.7) is giving exception

I am trying to update org.scala-lang:scala-library:jar:2.7.7 , from version 2.7.7 to 2.10.7 , in my project it is throwing exception
while starting server -
Caused by: java.lang.NoClassDefFoundError: Could not initialize class com.sun.proxy.$Proxy171
at sun.reflect.GeneratedConstructorAccessor126.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.reflect.Proxy.newProxyInstance(Unknown Source)
at org.springframework.aop.framework.JdkDynamicAopProxy.getProxy(JdkDynamicAopProxy.java:122)
at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:109)
at org.springframework.aop.framework.AbstractSingletonProxyFactoryBean.afterPropertiesSet(AbstractSingletonProxyFactoryBean.java:178)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1648)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1585)
How to approach to solve this problem?
Please let me know if any other detail is required.

You can't just update the Scala runtime jar like this: any dependencies of your application which are written in Scala will need to be updated to a 2.10-compatible version and Scala code of your application will need to be recompiled with Scala 2.10 as well.

Pentaho Data Integration (newest version) - Not detecting MySQL driver

I'm new to this tool and I'm trying to create MySQL connection to a database but when I press the 'Test' button it apears this message:
Error connecting to database [MySQL (_configuracionesEF)] :org.pentaho.di.core.exception.KettleDatabaseException:
Error occurred while trying to connect to the database
Driver class 'org.gjt.mm.mysql.Driver' could not be found, make sure the 'MySQL' driver (jar file) is installed.
org.gjt.mm.mysql.Driver
org.pentaho.di.core.exception.KettleDatabaseException:
Error occurred while trying to connect to the database
Driver class 'org.gjt.mm.mysql.Driver' could not be found, make sure the 'MySQL' driver (jar file) is installed.
org.gjt.mm.mysql.Driver
at org.pentaho.di.core.database.Database.normalConnect(Database.java:472)
at org.pentaho.di.core.database.Database.connect(Database.java:370)
at org.pentaho.di.core.database.Database.connect(Database.java:341)
at org.pentaho.di.core.database.Database.connect(Database.java:331)
at org.pentaho.di.core.database.DatabaseFactory.getConnectionTestReport(DatabaseFactory.java:80)
at org.pentaho.di.core.database.DatabaseMeta.testConnection(DatabaseMeta.java:2783)
at org.pentaho.ui.database.event.DataHandler.testDatabaseConnection(DataHandler.java:597)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:313)
at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:157)
at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:141)
at org.pentaho.ui.xul.swt.tags.SwtButton.access$500(SwtButton.java:43)
at org.pentaho.ui.xul.swt.tags.SwtButton$4.widgetSelected(SwtButton.java:137)
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.notifyListeners(Unknown Source)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:820)
at org.eclipse.jface.window.Window.open(Window.java:796)
at org.pentaho.di.ui.xul.KettleDialog.show(KettleDialog.java:80)
at org.pentaho.di.ui.xul.KettleDialog.show(KettleDialog.java:47)
at org.pentaho.di.ui.core.database.dialog.XulDatabaseDialog.open(XulDatabaseDialog.java:116)
at org.pentaho.di.ui.core.database.dialog.DatabaseDialog.open(DatabaseDialog.java:60)
at org.pentaho.di.ui.spoon.delegates.SpoonDBDelegate.editConnection(SpoonDBDelegate.java:96)
at org.pentaho.di.ui.spoon.Spoon.doubleClickedInTree(Spoon.java:3108)
at org.pentaho.di.ui.spoon.Spoon.doubleClickedInTree(Spoon.java:3043)
at org.pentaho.di.ui.spoon.Spoon.access$2300(Spoon.java:361)
at
org.pentaho.di.ui.spoon.Spoon$26.widgetDefaultSelected(Spoon.java:6184)
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.notifyListeners(Unknown Source)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at org.pentaho.di.ui.spoon.Spoon.readAndDispatch(Spoon.java:1366)
at org.pentaho.di.ui.spoon.Spoon.waitForDispose(Spoon.java:8022)
at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:9277)
at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:692)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.pentaho.commons.launcher.Launcher.main(Launcher.java:92)
Caused by: org.pentaho.di.core.exception.KettleDatabaseException:
Driver class 'org.gjt.mm.mysql.Driver' could not be found, make sure the 'MySQL' driver (jar file) is installed.
org.gjt.mm.mysql.Driver
at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:515)
at org.pentaho.di.core.database.Database.normalConnect(Database.java:456)
... 53 more
Caused by: java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:490)
... 54 more
Hostname :{LOCAL_IP}
Port :3306
Database name :{DATABASE_NAME}
Rigth now I'm just running the application file that comes inside of the folder from the download from pentaho's webpage.
What I've done until now
I've downloaded the lastest version of the MySQL Driver from MySQL's webpage.
I've unzipped the file and copied the mysql-connector-java-5.1.43-bin.jar from the driver download and tried pasting into the lib folder and Data Service JDBC Driver folder.
My question is this:
Where should I paste this driver to connect properly?

For the new version of the MySQL JDBC driver (in my case version 8.1), the name of the main driver class has changed. Even if you download the driver and restart spoon, still the MySQL connector of Pentaho Data Integration (PDI) looks for the wrong class name.
The workaround would be to use the "Generic database" connection type in PDI and add the new class name by hand. The typical connection details would be:
Dialect: MySQL
Custom connection URL: jdbc:mysql://localhost:3306/database_name
Custom driver class name: com.mysql.cj.jdbc.Driver
Reference: https://jira.pentaho.com/browse/PDI-17341

I got to resolve the error.
I'm ashamed, but it just needed to close and open the app again.
I just want to keep it here just if somebody doesn't get to resolve this problem and find this question.

download Mysql connector from here: connector
unzip the file
copy only the two *.jar files into data-integration/lib/
restart Pentaho
go to: Database Connection -> choose MySql -> edit your connection info -> test connection.
this resolved my issue.

Using db2 10.5 exception while trying to connect to db

Hi I am unable to connect to database from cmd, there is a problem in establishing a connection. I am using DB2 10.5 version client. Databse is on 10.5 server (Triend with db on 9.7 version server too).
I get the below excpetion :
com.ibm.db2.jcc.am.SqlException: [jcc][4038][12241][3.69.24] T2LUW exception: SQL1042C An unexpected system error occurred. SQLSTATE=58004
ERRORCODE=-1042, SQLSTATE=58004
at com.ibm.db2.jcc.am.gd.a(Unknown Source)
at com.ibm.db2.jcc.am.gd.a(Unknown Source)
at com.ibm.db2.jcc.am.gd.a(Unknown Source)
at com.ibm.db2.jcc.uw.UWExceptionGenerator.a(Unknown Source)
at com.ibm.db2.jcc.uw.UWExceptionGenerator.a(Unknown Source)
at com.ibm.db2.jcc.uw.UWConnection.a(Unknown Source)
at com.ibm.db2.jcc.uw.f.b(Unknown Source)
at com.ibm.db2.jcc.uw.UWConnection.a(Unknown Source)
at com.ibm.db2.jcc.uw.UWConnection.a(Unknown Source)
at com.ibm.db2.jcc.uw.UWConnection.<init>(Unknown Source)
at com.ibm.db2.jcc.DB2SimpleDataSource.getConnection(Unknown Source)
at com.ibm.db2.jcc.DB2SimpleDataSource.getConnection(Unknown Source)
at com.ibm.db2.jcc.DB2Driver.connect(Unknown Source)
at com.ibm.db2.jcc.DB2Driver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:171)
at DBOperation.setConnection(DBOperation.java:38)
at DBOperation.<init>(DBOperation.java:11)
at VTLoadStandard.main(VTLoadStandard.java:237)
Please help on resolving the issue.

Have a look at the manual entry for this error message.
It may be that your database configuration needs to be upgraded.
Explanation
A system error occurred. Some possible reasons for this error are:
The database manager is not installed correctly or the environment is not set up correctly.
On UNIX-based systems, db2iupdt may need to be run in order to update the DB2 instance to enable acquisition of a new system
configuration or access to function associated with the installation
or removal of certain product options, FixPaks, or modification
levels.
You might get this message if you are not using the correct DB2 Administration Server password.
There is more information about the error at the page I linked above.

You should check the contents of the DB2 diagnostics log file (db2diag.log) on the server side. The JDBC driver itself usually does not raise errors of such type, so there must be something wrong on the server.

For me the following helped: make sure you set the driver type 4.
db2datasource.setDriverType(4);
// put driverType=4; into the jdbc url

com.microsoft.sqlserver.jdbc.SQLServerException: The server version is not supported. The target server must be SQL Server 2000 or later

I am trying to connect SQL Server 2008 Express Edition using JDBC. I have included SQLServer Driver 3.0 (sqljdbc.jar) and I am using JDK 1.5.
Below are my code snippet:
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
con = DriverManager.getConnection("jdbc:sqlserver://10.54.10.190:1433;databaseName=SADB_database", "user", "password");
I am getting below exception:
com.microsoft.sqlserver.jdbc.SQLServerException: The server version is not supported. The target server must be SQL Server 2000 or later.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.DBComms.Prelogin(Unknown Source)
at com.microsoft.sqlserver.jdbc.DBComms.<init>(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.loginWithoutFailover(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
Please help any one. Thanks in advance

Try to update your driver to Version 4. Version 3.0 is very old.
Alternatively you can use jTDS JDBC Driver. This is a third-party driver but supports much more versions of Microsoft SQLServer.

This works for me after upgrading to Microsoft JDBC Drivers version 4.0