Data adapter init error

khalil78

hello,

i yould like to debug the stocklist_demo , i followed the topic http://www.lightstreamer.com/vb/showthread.php?t=145

but when i m runing the debug i have the error :

27.Mar.08 16:06:20,533 < INFO> Starting MAC address check
27.Mar.08 16:06:20,611 < INFO> Found MAC address 00:19:b9:02:96:5e
27.Mar.08 16:06:20,611 < INFO> MAC address check successful
27.Mar.08 16:06:20,611 < INFO> License correctly bound with the following parameter(s):
27.Mar.08 16:06:20,611 < INFO> Client ID : ECu5kaJZalc71OsXm1812
27.Mar.08 16:06:20,611 < INFO> Mac Address : 00:19:b9:02:96:5e
27.Mar.08 16:06:20,814 < INFO> Lightstreamer Server starting in Moderato edition
27.Mar.08 16:06:20,861 < WARN> JMX management features not available with the current license
27.Mar.08 16:06:20,908 < INFO> Started HTML Adaptor for JMX on port 6666
27.Mar.08 16:06:20,986 < INFO> Started JMXMP Connector for JMX on port 9999
27.Mar.08 16:06:21,064 < INFO> Loading Metadata Provider HELLOWORLD
27.Mar.08 16:06:21,064 < INFO> Loading Data Provider HELLOWORLD
27.Mar.08 16:06:21,111 < INFO> Loading Metadata Provider STOCKLISTDEMO
27.Mar.08 16:06:21,111 < INFO> Loading Data Provider STOCKLISTDEMO
27.Mar.08 16:06:21,127 <ERROR> Data adapter init error
java.lang.ClassNotFoundException: com.lightstreamer.adapters.stocklist_demo.DemoDataAdapter
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at com.lightstreamer.d.yc.loadClass(yc.java)
at com.lightstreamer.i.b.a(b.java)
at com.lightstreamer.i.b.a(b.java)
at com.lightstreamer.i.b.a(b.java)
at com.lightstreamer.i.j.a(j.java)
at com.lightstreamer.i.j.a(j.java)
at com.lightstreamer.LS.main(LS.java)
27.Mar.08 16:06:21,127 <ERROR> Error while loading the Adapters
java.lang.ClassNotFoundException: com.lightstreamer.adapters.stocklist_demo.DemoDataAdapter
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at com.lightstreamer.d.yc.loadClass(yc.java)
at com.lightstreamer.i.b.a(b.java)
at com.lightstreamer.i.b.a(b.java)
at com.lightstreamer.i.b.a(b.java)
at com.lightstreamer.i.j.a(j.java)
at com.lightstreamer.i.j.a(j.java)
at com.lightstreamer.LS.main(LS.java)
27.Mar.08 16:06:21,142 <FATAL> Adapters initialization failed
27.Mar.08 16:06:21,142 < INFO> Exiting.....

cant ini one help my.

ths.

Dario Crivelli

The missing class is the Data Adapter class. Hence, it is exactly the class you should have defined in your Eclipse project, according to the referred post.
Have you changed the class name or the package name? If this is the case, you should reference the new name in the "adapters.xml" file (under the "adapters\StockList" directory), which is the only link between the Server and the Data Adapter.

khalil78

cant you explaind my this :

When i copy the lib folder in the folder StockList the server run correctly, but when i delete the folder lib his spell the messag error. i dont understands this.

Dario Crivelli

The Server loads all jars it finds in the "lib" folder, hence it can find the Data Adapter class. This is the normal behaviour.
In an Eclipse context, however, your run configuration settings can instruct Eclipse to load your project classes first (this should be the default setting for a run configuration), so that the Server wouldn't need to load the jar.
Are you using custom class and package names for your Data Adapter or are you using the original sample names? In the latter case, there would definitely be an Eclipse configuration problem.