[fix](jdbc catalog) fix be crash when create jdbc catalog without dri…

…ver jar (apache#42948)

When creating a JDBC Catalog, a connection test is performed. However,
if the JDBC Driver path does not exist, we should report an error that
the file cannot be opened and not clean up the resources, because the
resources have not been created. Cleaning up non-existent resources will
cause the program to crash. This PR is changed to clean up only when the
resources are created.

be/src/vec/exec/vjdbc_connector.cpp

@@ -193,6 +193,9 @@ Status JdbcConnector::test_connection() {
 }
 
 Status JdbcConnector::clean_datasource() {
+    if (!_is_open) {
+        return Status::OK();
+    }
     JNIEnv* env = nullptr;
     RETURN_IF_ERROR(JniUtil::GetJNIEnv(&env));
     env->CallNonvirtualVoidMethod(_executor_obj, _executor_clazz, _executor_clean_datasource_id);