Unhelpful message AXIS2_ERROR_INVALID_NULL_PARAM when DLLs missing from client
repo lib directory.
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Key: AXIS2C-790
URL: https://issues.apache.org/jira/browse/AXIS2C-790
Project: Axis2-C
Issue Type: Bug
Components: core/deployment
Affects Versions: 1.1.0
Environment: Windows XP, Visual Studio 2005
Reporter: Bill Mitchell
Priority: Minor
If the client repository is incomplete, in particular, if the client has the
axis2_http_sender.dll and axis2_http_receiver.dll in the binary directory with
the application instead of in the repo/lib directory, the service cannot be
created with a very uninformative Axis errorno 2,
AXIS2_ERROR_INVALID_NULL_PARAM.
The initial error is diagnosed well by axutil_class_loader_create_dll() who
posts errorno 100, AXIS2_ERROR_DLL_CREATE_FAILED. But the code in
axis2_conf_builder_process_transport_senders() in conf_builder.c ignores the
error indicated by the null pointer return and proceeds to call
axis2_transport_out_desc_set_sender() with the null pointer, yielding the very
uninformative NULL_PARAM error.
In axis2_conf_builder_process_transport_senders(), the code fragment:
transport_sender =
axutil_class_loader_create_dll(env, impl_info_param);
axis2_transport_out_desc_add_param(transport_out, env,
impl_info_param);
status =
axis2_transport_out_desc_set_sender(transport_out, env,
transport_sender);
should read:
transport_sender =
axutil_class_loader_create_dll(env, impl_info_param);
axis2_transport_out_desc_add_param(transport_out, env,
impl_info_param);
if (!transport_sender)
{
axis2_transport_out_desc_free(transport_out, env);
return AXIS2_FAILURE;
}
status =
axis2_transport_out_desc_set_sender(transport_out, env,
transport_sender);
When I introduced this change, the service create fails with the useful errorno
100 pointing the administrator to the DLL problem.
Of course, when the axis2_http_sender.dll and axis2_http_receiver.dll are
placed correctly in the repo/lib directory, the error disappears.
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