This is a really bizarre issue. I'm trying to upgrade snmp4j to the latest
version (2.2.5) from 1.10.1 and now I'm getting a stackoverflowerror from
within ActiveMQ (version 5.9.1). I have a bizarre work-around but it'd be
interesting if anyone could shed more light on the issue.
The stackoverflow happens when snmp4j loads the SnmpRequest class and
executes this static block:
static {
LogFactory.setLogFactory(new Log4jLogFactory());
org.apache.log4j.BasicConfigurator.configure();
BER.setCheckSequenceLength(false);
}
ActiveMQ blows up when the BasicConfigurator.configure() call is made. My
work-around hack is to construct (load) an SnmpRequest object at startup
(before ActiveMQ, and log4j gets initialized). In snmp4j version 1.10.1 the
SnmpRequest class has a different static block without the configure() call.
Below is the trace for the stackoverflowerror:
6688 [ActiveMQ VMTransport: vm://Server#1-1] SYSTM SystemError -
4550 [ActiveMQ VMTransport: vm://Server#1-1] TRACE org
6689 [ActiveMQ VMTransport: vm://Server#1-1] SYSTM SystemError -
4550 [ActiveMQ VMTransport: vm://Server#1-1] TRACE org
6691 [ActiveMQ VMTransport: vm://Server#1-1] SYSTM SystemError -
4550 [ActiveMQ VMTransport: vm://JServer#1-1] TRACE org
6693 [ActiveMQ VMTransport: vm://Server#1-1] SYSTM SystemError -
4550 [ActiveMQ VMTransport: vm://Server#1-1]
This is going to stderr I believe, and it's all one big line.
--
darrickcoleman.com
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