creating long expressions

From: Marcin Skladaniec (marci..sh.com.au)
Date: Tue Dec 05 2006 - 20:56:14 EST

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Hi
I create a really long org.cayenne.exp.Expression. The longest I
created so far, had 63000 characters as string. The problem is that
after reaching certain (not sure what size, need to test more) size I
get:

Exception in thread "Thread-8"
org.apache.cayenne.CayenneRuntimeException: [v.3.0-incubating-
SNAPSHOT ] Remote error. URL - http://localhost:8181/angel-server-
cayenne
         at
org.apache.cayenne.remote.hessian.HessianConnection.doSendMessage
(HessianConnection.java:145)
         at org.apache.cayenne.remote.BaseConnection.sendMessage
(BaseConnection.java:73)
         at org.apache.cayenne.remote.ClientChannel.send
(ClientChannel.java:276)
         at org.apache.cayenne.remote.ClientChannel.onQuery
(ClientChannel.java:110)
         at org.apache.cayenne.util.ObjectContextQueryAction.runQuery
(ObjectContextQueryAction.java:282)
         at org.apache.cayenne.CayenneContextQueryAction.execute
(CayenneContextQueryAction.java:51)
         at org.apache.cayenne.CayenneContext.onQuery
(CayenneContext.java:347)
         at org.apache.cayenne.CayenneContext.performQuery
(CayenneContext.java:336)
         at ish.oncourse.cayenne.CayenneContext.performQuery
(CayenneContext.java:152)
         at
ish.oncourse.print.ProfitLossPrintableObject.getTransactionsFromRecords(
ProfitLossPrintableObject.java:180)
         at ish.oncourse.controller.PrintController$1.construct
(PrintController.java:263)
         at ish.oncourse.view.SwingWorker$2.run(SwingWorker.java:117)
         at java.lang.Thread.run(Thread.java:613)
Caused by: java.lang.StackOverflowError
         at java.util.IdentityHashMap.hash(IdentityHashMap.java:283)
         at java.util.IdentityHashMap.get(IdentityHashMap.java:313)
         at com.caucho.hessian.io.HessianOutput.addRef
(HessianOutput.java:799)
         at com.caucho.hessian.io.JavaSerializer.writeObject
(JavaSerializer.java:134)
         at com.caucho.hessian.io.HessianOutput.writeObject
(HessianOutput.java:317)
         at com.caucho.hessian.io.JavaSerializer
$FieldSerializer.serialize(JavaSerializer.java:242)
         at com.caucho.hessian.io.JavaSerializer.writeObject10
(JavaSerializer.java:175)
         at com.caucho.hessian.io.JavaSerializer.writeObject
(JavaSerializer.java:157)
         at com.caucho.hessian.io.HessianOutput.writeObject
(HessianOutput.java:317)
         at com.caucho.hessian.io.JavaSerializer
$FieldSerializer.serialize(JavaSerializer.java:242)
         at com.caucho.hessian.io.JavaSerializer.writeObject10
(JavaSerializer.java:175)
         at com.caucho.hessian.io.JavaSerializer.writeObject
(JavaSerializer.java:157)

It looks like hessian is failing to serialise the Expression. I'm I
right ? If so I'll post them a bug report.

Marcin

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