0 Replies Latest reply on Oct 28, 2010 10:13 AM by mike.tx.edu

    java.lang.StackOverflowError causing long-lived process to stall

    mike.tx.edu

      Hi,

       

      We have a long-lived process that has been working flawlessly without any issues for months. Recently, we've been noticing problems where users are not receiving the task notification emails when the process is invoked and upon checking the Admin UI, we are finding that the process has started stalling in the UserService service to Assign Task to a user. When we restart the application server the process works fine without stalling, but after a certain point in time we began getting the stalled processes again.

       

      Has anyone else encountered something like this? Any ideas on fixing this issue? The error is as follows:

       

      java.lang.StackOverflowError
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)
      at sun.reflect.GeneratedMethodAccessor879.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:618)
      at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1036)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1341)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:378)
      at java.util.ArrayList.readObject(ArrayList.java:617)