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[Advanced-java] Memory problem
- From: vesselinpeev@xxxxxxxxxxx (Vesselin Peev)
- Subject: [Advanced-java] Memory problem
- Date: Sun, 3 Mar 2002 13:10:32 +0100
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Julien,
Also, keep in mind that calling System.gc() is just a suggestion to the =
VM, not a command.
If the VM has another opinion, thinking it is not so low on resources, =
it would not actually invoke the garbage collector.
So you should take care to call System.gc() at the appropriate places =
where it is most likely that memory is low.
Regards,
Vesselin.
----- Original Message -----=20
From: Vesselin Peev=20
To: Julien Robinet=20
Cc: advanced-java@xxxxxxxxxxxxxxxxxxxxxx=20
Sent: Monday, April 01, 2002 11:51 AM
Subject: Re: [Advanced-java] Memory problem
Julien,
Call System.gc() to invoke the garbage collector manually at the =
places you need.
Of course, before doing it, you still need to ensure unneeded objects =
are null or are out of scope and not referenced.
You should get immediate relief ;-)
Hope that helps.
----- Original Message -----=20
From: Julien Robinet=20
To: advanced-java@xxxxxxxxxxxxxxxxxxxxxx=20
Sent: Monday, April 01, 2002 9:51 AM
Subject: [Advanced-java] Memory problem
Hi all,
=20
We are developping a client-server application with Jbuilder. In =
this application we display very large tree view. If we close the =
windows containing tree view and open again, error appears because of =
lake of memory.
we would like to unforce the garbage collector(possible?) to clean =
up memory when closing the windows containing tree-view...or cleanup the =
memory with other way. We try to set to null value every object in class =
(in finalize method) but no result always the same mather.
Do someone have good idea to solve such a problem.
=20
Thank o lot in advance
=20
Julien Robinet
=20
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<DIV><FONT face=3DArial size=3D2>Julien,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Also, keep in mind that calling =
System.gc() is just=20
a suggestion to the VM, not a command.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>If the VM has another opinion, thinking =
it is not=20
so low on resources, it would not actually invoke the garbage=20
collector.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>So you should take care to call =
System.gc() at the=20
appropriate places where it is most likely that memory is =
low.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Regards,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Vesselin.</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Dvesselinpeev@xxxxxxxxxxx=20
href=3D"mailto:vesselinpeev@xxxxxxxxxxx";>Vesselin Peev</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Djulien_r@xxxxxxxxx=20
href=3D"mailto:julien_r@xxxxxxxxx";>Julien Robinet</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A=20
title=3Dadvanced-java@xxxxxxxxxxxxxxxxxxxxxx=20
=
href=3D"mailto:advanced-java@xxxxxxxxxxxxxxxxxxxxxx";>advanced-java@lists.=
xcf.berkeley.edu</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, April 01, 2002 =
11:51=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [Advanced-java] =
Memory=20
problem</DIV>
<DIV><BR></DIV>
<DIV><FONT face=3DArial size=3D2>Julien,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Call System.gc() to invoke the =
garbage=20
collector manually at the places you need.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Of course, before doing it, you =
still need=20
to ensure unneeded objects are null or are out of scope and not=20
referenced.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>You should get immediate relief=20
;-)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Hope that helps.</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Djulien_r@xxxxxxxxx =
href=3D"mailto:julien_r@xxxxxxxxx";>Julien=20
Robinet</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
title=3Dadvanced-java@xxxxxxxxxxxxxxxxxxxxxx=20
=
href=3D"mailto:advanced-java@xxxxxxxxxxxxxxxxxxxxxx";>advanced-java@lists.=
xcf.berkeley.edu</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, April 01, 2002 =
9:51=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Advanced-java] =
Memory=20
problem</DIV>
<DIV><BR></DIV>
<DIV class=3DSection1>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt">Hi all,<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt">We are <SPAN =
class=3DSpellE>developping</SPAN> a=20
client-server application with <SPAN class=3DSpellE>Jbuilder</SPAN>. =
In this=20
application we display very large tree view. If we close the windows =
containing tree view and open again, error appears because of lake =
of=20
memory.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><SPAN class=3DGramE><FONT face=3D"Times New =
Roman"=20
size=3D3><SPAN style=3D"FONT-SIZE: 12pt">we</SPAN></FONT></SPAN> =
would like to=20
<SPAN class=3DSpellE>unforce</SPAN> the garbage collector(possible?) =
to clean=20
up memory when closing the windows containing tree-view...or cleanup =
the=20
memory with other way. We try to set to null value every object in =
class (in=20
finalize method) but no result always the same <SPAN =
class=3DSpellE><SPAN=20
class=3DGramE>mather</SPAN></SPAN>.<o:p></o:p></P>
<P class=3DMsoNormal><SPAN class=3DGramE><FONT face=3D"Times New =
Roman"=20
size=3D3><SPAN style=3D"FONT-SIZE: 12pt">Do</SPAN></FONT></SPAN> =
someone have=20
good idea to solve such a problem.<o:p></o:p></P>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt">Thank o lot in =
advance<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><st1:PersonName><FONT face=3D"Times New Roman" =
size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt">Julien</SPAN></FONT></st1:PersonName> =
<SPAN=20
class=3DSpellE>Robinet</SPAN><o:p></o:p></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P></DIV></BLOCKQUOTE></BLOCKQUOTE=
></BODY></HTML>
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