Hi folks! We've seen a mysterious deadlock in Johnzon on startup under heavy load.
java.lang.Thread.State: RUNNABLE at org.apache.johnzon.core.JsonArrayBuilderImpl.build(JsonArrayBuilderImpl.java:319) -- java.lang.Thread.State: RUNNABLE at org.apache.johnzon.core.JsonReaderImpl.parseObject(JsonReaderImpl.java:189) -- java.lang.Thread.State: RUNNABLE at org.apache.johnzon.core.JsonReaderImpl.parseObject(JsonReaderImpl.java:206) -- Those are the locations which are stuck. All of them seem to hang on a new() for the following: JsonArrayImpl, JsonLongImpl, JsonStringImpl.But the stack trace does NOT contain the actual call code inside the <init>.So my conclusio for now is that it fails to load the Class. I suspect that the classloading of JsonValue is to blame. JsonValue contains a few static fields. And those fields do load the WHOLE JsonProvider!So while doing the init of JsonValue it might well be that another thread tries to load some other class subsequently needed by JsonValue.<init>. Of course if this is really the case, then it's a problem in the spec API and probably not in Johnzon itself. Wdyt? LieGrue,strub
