4:03 p.m.
BTW: the latest agent release/master branch will not produce this NPE but it still
isn't good because, instead of getting an NPE, you get this loveliness:
16:57:53,081 ERROR [org.hawkular.agent.monitor.service.MonitorService] (Hawkular WildFly
Agent Startup Thread) HAWKMONITOR010054: Agent encountered errors during start up and will
be stopped.: java.lang.IllegalStateException: Unable to extract the trust manager on
okhttp3.internal.platform.Platform@69f176ea, sslSocketFactory is class
org.jboss.as.domain.management.security.WrapperSSLContext$WrapperSpi$WrapperSSLSocketFactory
at okhttp3.OkHttpClient$Builder.sslSocketFactory(OkHttpClient.java:599)
OKHttp is looking for particular SSL class to find a trust manager but is thrown for a
loop when it finds WildFly has its own wrapper implementation. This is the whole reason
why this PR exists (and the NPE shows up when running with that PR):
https://github.com/hawkular/hawkular-agent/pull/300
(and just to clarify, this is only an issue on EAP6.4. Everything works fine on EAP7+)
----- Original Message -----
Josejulio, cc hawkular-dev:
<TL;DR>
Due to incomplete API support in a EAP 6.4 library, we cannot support the
agent installed as a subsystem extension inside EAP6 if the agent is to talk
to the Hawkular Server over HTTPS.
</TL;DR>
I don't know how to workaround this one - maybe someone has a bright idea.
But right now, it looks like we can't support an EAP6-based agent talking to
Hawkular-Metrics over HTTPS *unless* the agent is running as a javaagent (a
new feature not even in master yet, but I tried it and it works).
This is a EAP 6.4 method that OKHttp is calling when making an HTTP request
requiring SSL - I'll give you the summary - its a one-line auto-generated
stub method that "return null;" :)
https://github.com/wildfly/wildfly-core/blame/de6b17d4d342e98871c0e95f7e6...
I stepped into this code via a debugger and the line number and behavior
(returning null always) matches up with that code.
Needless to say, this causes a NullPointerException later on in the OKHttp
library and thus cannot talk to the Hawkular Server over HTTPS.
Here's the stack trace that got me there:
Daemon Thread [Hawkular WildFly Agent Startup Thread] (Suspended)
org.jboss.as.domain.management.security.WrapperSSLContext$WrapperSpi$WrapperSSLSocketFactory.createSocket(java.net.Socket,
java.lang.String, int, boolean) line: 126
okhttp3.internal.connection.RealConnection.connectTls(int, int,
okhttp3.internal.connection.ConnectionSpecSelector) line: 230
okhttp3.internal.connection.RealConnection.establishProtocol(int, int,
okhttp3.internal.connection.ConnectionSpecSelector) line: 198
okhttp3.internal.connection.RealConnection.buildConnection(int, int, int,
okhttp3.internal.connection.ConnectionSpecSelector) line: 174
okhttp3.internal.connection.RealConnection.connect(int, int, int,
java.util.List<okhttp3.ConnectionSpec>, boolean) line: 114
okhttp3.internal.connection.StreamAllocation.findConnection(int, int, int,
boolean) line: 193
okhttp3.internal.connection.StreamAllocation.findHealthyConnection(int, int,
int, boolean, boolean) line: 129
okhttp3.internal.connection.StreamAllocation.newStream(okhttp3.OkHttpClient,
boolean) line: 98
okhttp3.internal.connection.ConnectInterceptor.intercept(okhttp3.Interceptor$Chain)
line: 42
okhttp3.internal.http.RealInterceptorChain.proceed(okhttp3.Request,
okhttp3.internal.connection.StreamAllocation,
okhttp3.internal.http.HttpStream, okhttp3.Connection) line: 92
okhttp3.internal.http.RealInterceptorChain.proceed(okhttp3.Request) line: 67
okhttp3.internal.cache.CacheInterceptor.intercept(okhttp3.Interceptor$Chain)
line: 109
okhttp3.internal.http.RealInterceptorChain.proceed(okhttp3.Request,
okhttp3.internal.connection.StreamAllocation,
okhttp3.internal.http.HttpStream, okhttp3.Connection) line: 92
okhttp3.internal.http.RealInterceptorChain.proceed(okhttp3.Request) line: 67
okhttp3.internal.http.BridgeInterceptor.intercept(okhttp3.Interceptor$Chain)
line: 93
okhttp3.internal.http.RealInterceptorChain.proceed(okhttp3.Request,
okhttp3.internal.connection.StreamAllocation,
okhttp3.internal.http.HttpStream, okhttp3.Connection) line: 92
okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(okhttp3.Interceptor$Chain)
line: 124
okhttp3.internal.http.RealInterceptorChain.proceed(okhttp3.Request,
okhttp3.internal.connection.StreamAllocation,
okhttp3.internal.http.HttpStream, okhttp3.Connection) line: 92
okhttp3.internal.http.RealInterceptorChain.proceed(okhttp3.Request) line: 67
okhttp3.RealCall.getResponseWithInterceptorChain() line: 170
okhttp3.RealCall.execute() line: 60
org.hawkular.agent.monitor.service.MonitorService(org.hawkular.agent.monitor.service.AgentCoreEngine).waitForHawkularServer()
line: 648
org.hawkular.agent.monitor.service.MonitorService(org.hawkular.agent.monitor.service.AgentCoreEngine).startHawkularAgent(org.hawkular.agent.monitor.config.AgentCoreEngineConfiguration)
line: 279
org.hawkular.agent.monitor.service.MonitorService(org.hawkular.agent.monitor.service.AgentCoreEngine).startHawkularAgent()
line: 164
org.hawkular.agent.monitor.service.MonitorService$1CustomPropertyChangeListener$1.run()
line: 395
java.lang.Thread.run() line: 745