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Re: [ease-dev] ease-dev Digest, Vol 27, Issue 1
Hi Christian,

I want to take up the Bug 511888.

i have read through the doc link you provided. It has given me a clear idea of the problem.

I may need some help though.

Thanks,
Prashanth



On Thu, Mar 2, 2017 at 12:40 PM, <ease-dev-request@xxxxxxxxxxx> wrote:
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Today's Topics:

   1. [GSOC 2017] Contributing for the project EASE in GSOC     2017
      (Minudika Malshan)
   2. Query related to Bug 511888 (Prash D)
   3. Re: [GSOC 2017] Contributing for the project EASE in      GSOC
      2017 (Christian.Pontesegger@infineon.com)
   4. Re: Query related to Bug 511888
      (Christian.Pontesegger@infineon.com)


----------------------------------------------------------------------

Message: 1
Date: Thu, 2 Mar 2017 00:17:55 +0530
From: Minudika Malshan <minudika001@xxxxxxxxx>
To: ease-dev@xxxxxxxxxxx
Subject: [ease-dev] [GSOC 2017] Contributing for the project EASE in
        GSOC    2017
Message-ID:
        <CAMqS2UeBMcLrXrX2o9T10AOKzttq2VAFueG34kx0_Q1CJp_NRw@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hi,

I am an undergraduate of University of Moratuwa. Currently I am following
my major in Computer Science and Engineering.
I went through the eclipse GSOC 2017 ideas and found above subjected
project interested.
Could you please give me more details about it and references to get
started with it?
Your help is much appreciated.

Thank you!

--
*Minudika Malshan*
Undergraduate
Department of Computer Science and Engineering
University of Moratuwa
Sri Lanka.
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Message: 2
Date: Thu, 2 Mar 2017 10:31:54 +0530
From: Prash D <prashanthd912@xxxxxxxxx>
To: ease-dev@xxxxxxxxxxx
Subject: [ease-dev] Query related to Bug 511888
Message-ID:
        <CAKAKgXsqnbwEDf=5Aq4vobPNSqFGK_YbqDfS-j02MKaiA0SfrA@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hello,

This is related to Bug 511888
<https://bugs.eclipse.org/bugs/show_bug.cgi?id=511888>. I'm unable to
understand what the error is. Is it possible for you to give a little more
description related to this?

See stacktrace:

Caused by: java.util.ConcurrentModificationException
        at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
        at java.util.ArrayList$Itr.next(ArrayList.java:851)
        at java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1042)
        at org.eclipse.ease.ui.view.ModuleStackDropin$2.getElements(ModuleStackDropin.java:92)
        at org.eclipse.jface.viewers.StructuredViewer.getRawChildren(StructuredViewer.java:1001)
        at org.eclipse.jface.viewers.ColumnViewer.getRawChildren(ColumnViewer.java:701)
        at org.eclipse.jface.viewers.AbstractTableViewer.getRawChildren(AbstractTableViewer.java:1030)
        at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:907)
        at org.eclipse.jface.viewers.StructuredViewer.getSortedChildren(StructuredViewer.java:1084)
        at org.eclipse.jface.viewers.AbstractTableViewer.internalRefreshAll(AbstractTableViewer.java:659)
        at org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:607)
        at org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:599)
        at org.eclipse.jface.viewers.StructuredViewer.lambda$0(StructuredViewer.java:1519)
        at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1458)
        at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1419)
        at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1519)
        at org.eclipse.jface.viewers.ColumnViewer.refresh(ColumnViewer.java:523)
        at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1478)
        at org.eclipse.ease.ui.view.ModuleStackDropin$4.run(ModuleStackDropin.java:175)
        at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
        at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
        ... 24 more


Are these statements needed to be added to the code?

--
Thanks,
Prashanth
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Message: 3
Date: Thu, 2 Mar 2017 07:07:23 +0000
From: <Christian.Pontesegger@infineon.com>
To: <ease-dev@xxxxxxxxxxx>
Subject: Re: [ease-dev] [GSOC 2017] Contributing for the project EASE
        in      GSOC    2017
Message-ID: <cc78556f10e243f182f7b5872c380f0e@xxxxxxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset="utf-8"

Hi,



which project exactly are you interested in? We proposed multiple on the wiki
site.

Christian

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Message: 4
Date: Thu, 2 Mar 2017 07:10:56 +0000
From: <Christian.Pontesegger@infineon.com>
To: <ease-dev@xxxxxxxxxxx>
Subject: Re: [ease-dev] Query related to Bug 511888
Message-ID: <afe7c10cdfde405995cce22a9db51eb9@xxxxxxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset="utf-8"

Hi Prashanth,



a good explanation of this exception type can be found in the javadocs:

https://docs.oracle.com/javase/7/docs/api/java/util/ConcurrentModificationException.html



We are iterating over a collection while some other thread is modifying it.
This means we either should avoid changes to the collection while iterating or
iterate over an unmutable collection.



HTH

Christian



From: ease-dev-bounces@xxxxxxxxxxx [mailto:ease-dev-bounces@eclipse.org] On
Behalf Of Prash D
Sent: Thursday, March 02, 2017 6:02 AM
To: ease-dev@xxxxxxxxxxx
Subject: [ease-dev] Query related to Bug 511888



Hello,



This is related to Bug 511888
<https://bugs.eclipse.org/bugs/show_bug.cgi?id=511888> . I'm unable to
understand what the error is. Is it possible for you to give a little more
description related to this?



See stacktrace:

Caused by: java.util.ConcurrentModificationException
      at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
      at java.util.ArrayList$Itr.next(ArrayList.java:851)
      at
java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1042)
      at
org.eclipse.ease.ui.view.ModuleStackDropin$2.getElements(ModuleStackDropin.java:92)
      at
org.eclipse.jface.viewers.StructuredViewer.getRawChildren(StructuredViewer.java:1001)
      at
org.eclipse.jface.viewers.ColumnViewer.getRawChildren(ColumnViewer.java:701)
      at
org.eclipse.jface.viewers.AbstractTableViewer.getRawChildren(AbstractTableViewer.java:1030)
      at
org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:907)
      at
org.eclipse.jface.viewers.StructuredViewer.getSortedChildren(StructuredViewer.java:1084)
      at
org.eclipse.jface.viewers.AbstractTableViewer.internalRefreshAll(AbstractTableViewer.java:659)
      at
org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:607)
      at
org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:599)
      at
org.eclipse.jface.viewers.StructuredViewer.lambda$0(StructuredViewer.java:1519)
      at
org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1458)
      at
org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1419)
      at
org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1519)
      at org.eclipse.jface.viewers.ColumnViewer.refresh(ColumnViewer.java:523)
      at
org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1478)
      at
org.eclipse.ease.ui.view.ModuleStackDropin$4.run(ModuleStackDropin.java:175)
      at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
      at
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
      ... 24 more



Are these statements needed to be added to the code?



--

Thanks,

Prashanth



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End of ease-dev Digest, Vol 27, Issue 1
***************************************



--
Thanks,
Prashanth Duvvada
Computer Science Student,
Amrita University

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