Bug 27555

Summary:

[startup] PackageFragmentRoot - source attached too early (?)

Product:

[Eclipse Project] JDT

Reporter:

Adam Kiezun <akiezun>

Component:

Core

Assignee:

Jerome Lanneluc <jerome_lanneluc>

Status:

VERIFIED FIXED

QA Contact:

Severity:

normal

Priority:

Keywords:

performance

Version:

2.1

Target Milestone:

2.1 M4

Hardware:

OS:

Windows 2000

Whiteboard:

Attachments:

Description	Flags
attachSource on first expansion of a java project	none
attachSource on first switch to java	none

Description Adam Kiezun

2002-12-03 05:43:18 EST

20021127
PackageFragmentRoot calls attachSource on openWhenClosed
which happens in the following scenario:

1. 'collapse all' in package explorer
2. restart eclipse
3. expand one project (i tried a source project - probably true for any)
4. you wait a long time and 40% of that time is spent on attaching source to a 
binary file that you have not touched yet

will attach profile

Comment 1 Adam Kiezun

2002-12-03 05:47:24 EST

Created attachment 2620 [details]
attachSource on first expansion of a java project

Comment 2 Adam Kiezun

2002-12-03 09:15:07 EST

Created attachment 2623 [details]
attachSource on first switch to java

the same thing is responsible for 19% of time need to switch to java
perspective the frist time

Comment 3 Jerome Lanneluc

2002-12-06 05:31:18 EST

I even think that the guilty code is earlier: 
JavaProjectElementInfo.computeNonJavaResources() calls 
JavaProject.findPackageFragment0() which forces the opening of all package 
fragment roots of the project.

Comment 4 Jerome Lanneluc

2002-12-06 11:04:24 EST

Entered bug 27840 for the JavaProjectElementInfo.computeNonJavaResources().

We can still avoid to attach the source too early as described in this bug.

Comment 5 Jerome Lanneluc

2002-12-09 07:01:41 EST

Changed implementation to lazy initialize SourceMapper.

Comment 6 David Audel

2002-12-19 05:00:48 EST

Verified.