This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.

Bug 210615

Summary:	OutOfMemoryError: Java heap space
Product:	debugger	Reporter:	williambacchi
Component:	Java	Assignee:	Martin Entlicher <mentlicher>
Status:	RESOLVED FIXED
Severity:	normal	CC:	exceptions_reporter
Priority:	P3	Keywords:	PERFORMANCE
Version:	7.2
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	186604
Attachments:	stacktrace

Description williambacchi 2012-04-03 12:59:51 UTC

Build: NetBeans IDE Dev (Build 201203280401)
VM: Java HotSpot(TM) Client VM, 22.1-b02, Java(TM) SE Runtime Environment, 1.7.0_03-b05
OS: Windows XP

User Comments:
williambacchi: watching a very long string in a variable while debugging




Stacktrace: 
java.lang.OutOfMemoryError: Java heap space
   at java.util.Arrays.copyOf(Arrays.java:2367)
   at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:130)
   at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:114)
   at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:415)
   at java.lang.StringBuilder.append(StringBuilder.java:132)
   at org.netbeans.modules.debugger.jpda.models.AbstractVariable.getValue(AbstractVariable.java:165)

Comment 1 williambacchi 2012-04-03 12:59:54 UTC

Created attachment 117737 [details]
stacktrace

Comment 2 Martin Entlicher 2012-04-10 09:59:27 UTC

The heap dump is incomplete, but we can see five large Strings there, having 33.5 MB each and the reference chain.
We need to improve handling of large Strings, not to load them all into the memory. Something was already done in that area, but apparently, it's not enough.

Comment 3 Martin Entlicher 2013-01-07 14:13:07 UTC

*** Bug 224572 has been marked as a duplicate of this bug. ***

Comment 4 Martin Entlicher 2013-01-09 13:23:20 UTC

Fixed by changeset:   244211:e8257225118a
http://hg.netbeans.org/core-main/rev/e8257225118a

Comment 5 Quality Engineering 2013-01-10 03:33:59 UTC

Integrated into 'main-golden', will be available in build *201301100107* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
Changeset: http://hg.netbeans.org/main-golden/rev/e8257225118a
User: mentlicher@netbeans.org
Log: #210615: Cut the retrieved String if it's too long to limit the memory consumption.