OOME when doing RMI with wlclient.jar

Hi,
I'm calling EJB-components that are hosted on a WLS 8.1 server.
The client uses wlclient.jar from WLS 9 distribution (WebLogic Server 9.2 Fri Jun 23 20:47:26 EDT 2006 783464) and jre 1.5.0_11.
I get OOME at the client after doing several hundred EJB calls.
I have checked that the client code does not leak ejb-references, initial contexts etc. I have also tried to call ejb remove and close the initialcontext and start anew but it does not help, the "com.sun.corba.se.impl.orbutil.CacheTable" still becomes the top heap consumer.
The outline of how the program proceeds is:
1. create initial context
2. lookup ejb home
3. call the create-method of a stateless session bean
4. call some ejb business methods several hundred times
-- here is the OOME, most often not during the ejb call, but when memory is examined the RMI-implementation objects are filling the heap
5. call ejb remove
6. close initial context
So that's the problem. How could I get around this?
I included some HPROF statistics below. HPROF made the stats immidiately after the OOME . All the top rank rows are related to RMI implementation classes, not application classes.
Regards,
Kari
SITES BEGIN (ordered by live bytes) Tue Oct 06 12:02:10 2009
percent live alloc'ed stack class
rank self accum bytes objs bytes objs trace name
1 10.29% 10.29% 3758560 3614 39151840 37646 310238 byte[]
2 9.31% 19.60% 3400848 45698 3400848 45698 312167 char[]
3 5.46% 25.06% 1994432 62326 3528256 110258 312197 com.sun.corba.se.impl.orbutil.CacheTable$Entry
4 3.21% 28.27% 1172952 8747 1172952 8747 312066 char[]
5 3.00% 31.27% 1096752 45698 1096752 45698 312166 java.lang.String
6 2.90% 34.17% 1059688 6869 1089912 7103 310593 byte[]
7 2.30% 36.47% 838592 26206 2827456 88358 312171 com.sun.corba.se.impl.orbutil.CacheTable$Entry
8 2.19% 38.65% 798200 25112 798200 25112 306612 char[]
9 2.02% 40.67% 738552 30773 769344 32056 310605 java.util.HashMap$Entry
10 1.99% 42.66% 727064 6991 3915184 37646 310235 com.sun.corba.se.impl.encoding.CDROutputStream_1_2
11 1.84% 44.50% 671712 1294 1196448 3818 312195 com.sun.corba.se.impl.orbutil.CacheTable$Entry[]
12 1.84% 46.34% 671712 1294 1196448 3818 312196 com.sun.corba.se.impl.orbutil.CacheTable$Entry[]
13 1.65% 48.00% 604472 6869 625064 7103 310578 com.sun.corba.se.impl.protocol.CorbaMessageMediatorImpl
14 1.65% 49.65% 603792 25158 628680 26195 300952 java.util.HashMap$Entry
15 1.65% 51.30% 602688 25112 602688 25112 306611 java.lang.String
16 1.50% 52.80% 549520 6869 568240 7103 310599 com.sun.corba.se.impl.protocol.giopmsgheaders.RequestMessage_1_2
17 1.50% 54.31% 549520 6869 568240 7103 310587 java.util.HashMap$Entry[]
18 1.44% 55.74% 524352 4 524352 4 302751 java.util.HashMap$Entry[]
19 1.26% 57.00% 460632 3387 475592 3497 310457 com.sun.corba.se.impl.interceptors.ClientRequestInfoImpl
20 1.21% 58.21% 441072 9189 2515152 52399 304085 java.nio.HeapByteBuffer
21 1.05% 59.27% 385000 6875 397768 7103 310405 com.sun.corba.se.impl.legacy.connection.SocketFactoryContactInfoImpl
22 1.03% 60.29% 375120 15630 375120 15630 313808 java.lang.StackTraceElement
23 1.00% 61.29% 364728 3507 1939496 18649 309771 com.sun.corba.se.impl.encoding.CDRInputStream_1_2
24 0.96% 62.25% 349696 3877 5040200 58488 310969 char[]
25 0.90% 63.15% 329712 6869 340944 7103 310231 com.sun.corba.se.impl.encoding.CDROutputObject
26 0.77% 63.92% 279904 8747 279904 8747 312070 com.sun.corba.se.impl.orbutil.CacheTable$Entry
27 0.75% 64.67% 275040 6876 365360 9134 304217 char[]
28 0.75% 65.42% 274760 6869 284120 7103 310586 java.util.HashMap
29 0.74% 66.16% 271200 3390 289920 3624 310960 java.util.HashMap$Entry[]
30 0.74% 66.91% 271200 3390 289920 3624 310941 com.sun.corba.se.impl.protocol.giopmsgheaders.ReplyMessage_1_2
31 0.74% 67.65% 271120 3389 287360 3592 311344 java.util.HashMap$Entry[]
32 0.67% 68.32% 243984 10166 257856 10744 310884 java.util.HashMap$Entry
33 0.67% 68.99% 243984 10166 257856 10744 310879 com.sun.corba.se.spi.servicecontext.UnknownServiceContext
34 0.65% 69.64% 239272 2583 908696 10308 300090 char[]
35 0.60% 70.24% 219808 6869 227296 7103 310799 com.sun.corba.se.impl.encoding.BufferManagerWriteStream
36 0.60% 70.84% 219808 6869 227296 7103 310584 com.sun.corba.se.spi.servicecontext.ServiceContexts
37 0.57% 71.42% 209928 8747 209928 8747 312065 java.lang.String
38 0.56% 71.98% 205776 8574 205776 8574 313784 java.lang.StackTraceElement
39 0.54% 72.52% 196800 5427 427112 11183 310920 byte[]
40 0.54% 73.06% 196352 1700 444904 4043 310971 char[]
41 0.47% 73.53% 172056 7169 172056 7169 312484 java.lang.StackTraceElement
42 0.47% 73.99% 170000 2125 178800 2235 311358 java.util.HashMap$Entry[]

Andy Piper wrote:
Configuration:
=============
* Windows 2000 Prof SP3
* Sun JDK 1.4.1_01 (1.4.2)Incidentally you should be using 1.4.1_03 (or later) in the client if
you are using wlclient.jar.I tried some combinations of WL and client JDKs,
even that:
* WL started under Sun JDK 1.4.2
* client started under Sun JDK 1.4.2
* all classes (EJBs, value objects, etc)
compiled under Sun JDK 1.4.2
>
>
FAIL because of java.rmi.MarshalException
weblogic.iiop.IIOPInputStream.checkChunk(IIOPInputStream.java:449)
at
weblogic.iiop.IIOPInputStream.read_longlong(IIOPInputStream.java:1002)There is known bug with reading longs inside a chunked value. This is
fixed in SP2 and the relevant CR is CR124377 - you can get a patch for
SP1 from support.It's realy very nice news for us.
Thank you very match for help and quick response.
Best regards,
Eugene Voytitsky

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resolve itself.
andy
I am getting the exception "SubjectManager not installed" when calling Security.runAs with thin client jar. This is the first statement on entering main(). This error doesnt occur when using weblogic.jar.
I was doing this because the principal and credentials set on main thread, for JNDI authentication were getting passed to all the child threads. To evade this, I thought of calling the following code in every new thread - Security.runAs(new Subject(), new PriviledgedAction(){
public Object run(){
//do stuff
Thanks in advance
Sachin

OOME when doing RMI with wlclient.jar

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