JNDI Context Initialization error while migration from WAS to liberty - jms

Question

The WsnInitialContextFactory class not found exception. Liberty does not support this class, then how can I remove jndi.properties default settings. This property file contain this class name for InitialContext.
Properties:
INITIAL_CONTEXT_FACTORY = "com.ibm.websphere.naming.WsnInitialContextFactory"
CC_PROVIDER_URL = "iiop://localhost.svr.us.xxxxxxx.net:41516"
InitialContext Lookup:
try {
Hashtable params = new Hashtable();
params.put(Context.INITIAL_CONTEXT_FACTORY, ADProperties.WS_INITIAL_CONTEXT_FACTORY);
params.put(Context.PROVIDER_URL, ADProperties.AD_PROVIDER_URL);
Context ctx = new InitialContext(params);
try {
ds = (DataSource) ctx.lookup("java:comp/env/" + jndiName);
} catch (Exception ex) {
LogUtil.debugException("DBConnectionManager", "Exception in init: Resource reference DataSource lookup Error.", "init()", ex, "");
try {
ds = (DataSource) ctx.lookup("jdbc/" + jndiName);
} catch (Exception exp) {
LogUtil.debugException("DBConnectionManager", "Exception in init: Datasource lookup Error.", "init()", exp, "");
}
}
Exception:
[INFO] [err] java.lang.NoClassDefFoundError: Could not initialize class com.ibm.websphere.naming.WsnInitialContextFactory
[INFO] [err] at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
[INFO] [err] at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
[INFO] [err] at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
[INFO] [err] at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
[INFO] [err] at com.ibm.ws.jndi.internal.WASInitialContextFactoryBuilder.createInitialContextFactory(WASInitialContextFactoryBuilder.java:57)
[INFO] [err] at [internal classes]
[INFO] [err] at java.naming/javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:730)
[INFO] [err] at java.naming/javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:305)
[INFO] [err] at java.naming/javax.naming.InitialContext.init(InitialContext.java:236)
[INFO] [err] at java.naming/javax.naming.InitialContext.<init>(InitialContext.java:184)

Answer 1

Liberty does not support the WsnInitialContextFactory class. You can just do this (and it'll work in WebSphere traditional as well):
try {
Context ctx = new InitialContext(new Hashtable());
try {
ds = (DataSource) ctx.lookup("java:comp/env/" + jndiName);
} catch (Exception ex) {
LogUtil.debugException("DBConnectionManager", "Exception in init: Resource reference DataSource lookup Error.", "init()", ex, "");
try {
ds = (DataSource) ctx.lookup("jdbc/" + jndiName);
} catch (Exception exp) {
LogUtil.debugException("DBConnectionManager", "Exception in init: Datasource lookup Error.", "init()", exp, "");
}
}