We Keep Coding

Getting NullPointerException while trying to run jetty start.run

I am trying to make jetty server as service, and im using this guide:
https://www.eclipse.org/jetty/documentation/current/startup-windows-service.html
However I cant make it work, when trying to proceed with:
java -jar ..\jetty\start.jar --add-to-start=deploy,http,console-capture
im getting this:
java.lang.NullPointerException
at sun.nio.fs.WindowsPathParser.parse(Unknown Source)
at sun.nio.fs.WindowsPathParser.parse(Unknown Source)
at sun.nio.fs.WindowsPath.parse(Unknown Source)
at sun.nio.fs.WindowsFileSystem.getPath(Unknown Source)
at java.nio.file.Paths.get(Unknown Source)
at org.eclipse.jetty.start.StartArgs.findMavenLocalRepoDir(StartArgs.java:845)
at org.eclipse.jetty.start.BaseBuilder.<init>(BaseBuilder.java:90)
at org.eclipse.jetty.start.Main.start(Main.java:439)
at org.eclipse.jetty.start.Main.main(Main.java:77)```

I had the same problem using version jetty-distribution-9.4.10.v20180503. So, I downgrade to jetty-distribution-9.4.19.v20190610 and it started to work fine. Environment details below:
Windows 10 Pro
java version "1.8.0_151"

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

How to fix error that related to Java Runtime Environment

This really make me stress. I try to make connection between Pentaho and database SQL Server 2000 so many time. Every time I try to connect using Native (JDBC) access, this error always come out:
Code:
Error connecting to database [sutera] : org.pentaho.di.core.exception.KettleDatabaseException:
Error occured while trying to connect to the database
Error connecting to database: (using class com.microsoft.sqlserver.jdbc.SQLServerDriver)
Java Runtime Environment (JRE) version 1.7 is not supported by this driver. Use the sqljdbc4.jar class library, which provides support for JDBC 4.0.
org.pentaho.di.core.exception.KettleDatabaseException:
Error occured while trying to connect to the database
Error connecting to database: (using class com.microsoft.sqlserver.jdbc.SQLServerDriver)
Java Runtime Environment (JRE) version 1.7 is not supported by this driver. Use the sqljdbc4.jar class library, which provides support for JDBC 4.0.
at org.pentaho.di.core.database.Database.normalConnect(Database.java:415)
at org.pentaho.di.core.database.Database.connect(Database.java:353)
at org.pentaho.di.core.database.Database.connect(Database.java:306)
at org.pentaho.di.core.database.Database.connect(Database.java:294)
at org.pentaho.di.core.database.DatabaseFactory.getConnectionTestReport(DatabaseFactory.java:84)
at org.pentaho.di.core.database.DatabaseMeta.testConnection(DatabaseMeta.java:2459)
at org.pentaho.ui.database.event.DataHandler.testDatabaseConnection(DataHandler.java:541)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:329)
at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:139)
at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:123)
at org.pentaho.ui.xul.swt.tags.SwtButton.access$500(SwtButton.java:26)
at org.pentaho.ui.xul.swt.tags.SwtButton$4.widgetSelected(SwtButton.java:121)
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(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.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:375)
at org.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:301)
at org.pentaho.di.ui.core.database.dialog.XulDatabaseDialog.open(XulDatabaseDialog.java:115)
at org.pentaho.di.ui.core.database.dialog.DatabaseDialog.open(DatabaseDialog.java:62)
at org.pentaho.di.ui.spoon.delegates.SpoonDBDelegate.editConnection(SpoonDBDelegate.java:88)
at org.pentaho.di.ui.spoon.Spoon.doubleClickedInTree(Spoon.java:2900)
at org.pentaho.di.ui.spoon.Spoon.access$2300(Spoon.java:332)
at org.pentaho.di.ui.spoon.Spoon$27.widgetDefaultSelected(Spoon.java:5657)
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(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:1227)
at org.pentaho.di.ui.spoon.Spoon.waitForDispose(Spoon.java:7368)
at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:8673)
at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:625)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.pentaho.commons.launcher.Launcher.main(Launcher.java:134)
Caused by: org.pentaho.di.core.exception.KettleDatabaseException:
Error connecting to database: (using class com.microsoft.sqlserver.jdbc.SQLServerDriver)
Java Runtime Environment (JRE) version 1.7 is not supported by this driver. Use the sqljdbc4.jar class library, which provides support for JDBC 4.0.
at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:542)
at org.pentaho.di.core.database.Database.normalConnect(Database.java:399)
... 44 more
Caused by: java.lang.UnsupportedOperationException: Java Runtime Environment (JRE) version 1.7 is not supported by this driver. Use the sqljdbc4.jar class library, which provides support for JDBC 4.0.
at com.microsoft.sqlserver.jdbc.SQLServerConnection.<init>(SQLServerConnection.java:304)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1011)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:518)
... 45 more
Hostname : 172.16.1.133
Port : 1521
Database name : kjc_v2
I search the reason why I got this error and what I found that I think it maybe the causes of this problem is beacause of my Java Runtime Environment (JRE) version 1.7. From the research I made, this Java version cannot read jdbc driver that I use. So I download other jdbc driver that I think it suitable for sql server 2000. But same error still come out. So, I change my plan. I try to change my JRE to other version. But the problem is even I already change JRE to other version, it still detect same version and same error still come out every time I test the connection.
Please someone guide me how to remove this error? I'm new in Pentaho & when facing something like this, I don't know how to solve it.

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

java 6 broke webstart application installation with error 'java.lang.Exception: cache failed for'

After upgrading to the latest java version (Java 6 update 13) a webstart application that was being used in production environments for many years, stopped installing with the following error:
java.lang.Exception: cache failed forhttp://localhost:8080/ReactorStudio/studio/installer.jnlp
at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
The application jnlp is downloaded correctly and all the associated jar files. The application also contains a reference to an installer jnlp file that extracts a few files to the local disk the first the application is being run.
Any ideas on what is the problem, or how I could bypass this?

We had a similar issue when upgrading to the latest JRE. Our issue seemed to be related to this bug that should be fixed in 6u14. Perhaps your issue is also related.
The only workaround we found was to clear the webstart cache and launch the application again. In our experience this seems to be the solution to most webstart issues.

Try to remove href="..." from the "jnlp" tag of the "launch.jnlp" file.