Deadlock problems
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Transcript of Deadlock problems
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What makes agood bug report?
Thomas ZimmermannSaarland University
Sascha JustSaarland University
Adrian SchröterSaarland University
Nicolas BettenburgSaarland University
Cathrin WeissSaarland University
Rahul PremrajSaarland University
1
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What makes agood bug report?
Thomas ZimmermannUniversity of Calgary
Sascha JustSaarland University
Adrian SchröterUniversity of Victoria
Nicolas BettenburgQueen’s University
Cathrin WeissUniversity of Zurich
Rahul PremrajFree Uni. Amsterdam
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What makes agood bug report?
Thomas ZimmermannMicrosoft Research
Sascha JustSaarland University
Adrian SchröterUniversity of Victoria
Nicolas BettenburgQueen’s University
Cathrin WeissUniversity of Zurich
Rahul PremrajFree Uni. Amsterdam
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Bug 31021
Summary: Tree - Selection listener stops default expansion
Product: [Eclipse] Platform Reporter: Veronika Irvine <[email protected]>
Component: SWT Assignee: Steve Northover <[email protected]>
Status: RESOLVED WONTFIX QA Contact:
Severity: normal
Priority: P3
Version: 2.1
Target Milestone: ---
Hardware: PC
OS: Windows XP
Whiteboard:
Description: Opened: 2003-02-05 14:52 -0400
I20030205
Run the following example. Double click on a tree item and notice that it does
not expand.
Comment out the Selection listener and now double click on any tree item and
notice that it expands.
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Tree tree = new Tree(shell, SWT.BORDER);
for (int i = 0; i < 4; i++) {
TreeItem item = new TreeItem(tree, SWT.NONE);
item.setText("item " + i);
for (int j = 0; j < 4; j++) {
TreeItem subItem = new TreeItem(item, SWT.NONE);
subItem.setText("item " + j);
for (int k = 0; k < 4; k++) {
TreeItem subsubItem = new TreeItem(subItem,
SWT.NONE);
subsubItem.setText("item " + k);
}
}
}
tree.addSelectionListener(new SelectionAdapter() {});
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
------- Comment #1 From Steve Northover 2004-10-07 19:39:16 -0400 -------
This behavior can't be changed now because application code now relies on it.
Sorry.
4
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Bug 31021
Summary: Tree - Selection listener stops default expansion
Product: [Eclipse] Platform Reporter: Veronika Irvine <[email protected]>
Component: SWT Assignee: Steve Northover <[email protected]>
Status: RESOLVED WONTFIX QA Contact:
Severity: normal
Priority: P3
Version: 2.1
Target Milestone: ---
Hardware: PC
OS: Windows XP
Whiteboard:
Description: Opened: 2003-02-05 14:52 -0400
I20030205
Run the following example. Double click on a tree item and notice that it does
not expand.
Comment out the Selection listener and now double click on any tree item and
notice that it expands.
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Tree tree = new Tree(shell, SWT.BORDER);
for (int i = 0; i < 4; i++) {
TreeItem item = new TreeItem(tree, SWT.NONE);
item.setText("item " + i);
for (int j = 0; j < 4; j++) {
TreeItem subItem = new TreeItem(item, SWT.NONE);
subItem.setText("item " + j);
for (int k = 0; k < 4; k++) {
TreeItem subsubItem = new TreeItem(subItem,
SWT.NONE);
subsubItem.setText("item " + k);
}
}
}
tree.addSelectionListener(new SelectionAdapter() {});
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
------- Comment #1 From Steve Northover 2004-10-07 19:39:16 -0400 -------
This behavior can't be changed now because application code now relies on it.
Sorry.
CONTACT LEGAL
Bugzilla – Full Text Bug Listing
Home | New | Search | Find | Reports | Requests | New Account | Log In | Terms of Use
Bug 31021
Summary: Tree - Selection listener stops default expansion
Product: [Eclipse] Platform Reporter: Veronika Irvine <[email protected]>
Component: SWT Assignee: Steve Northover <[email protected]>
Status: RESOLVED WONTFIX QA Contact:
Severity: normal
Priority: P3
Version: 2.1
Target Milestone: ---
Hardware: PC
OS: Windows XP
Whiteboard:
Description: Opened: 2003-02-05 14:52 -0400
I20030205
Run the following example. Double click on a tree item and notice that it does
not expand.
Comment out the Selection listener and now double click on any tree item and
notice that it expands.
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Tree tree = new Tree(shell, SWT.BORDER);
for (int i = 0; i < 4; i++) {
TreeItem item = new TreeItem(tree, SWT.NONE);
item.setText("item " + i);
for (int j = 0; j < 4; j++) {
TreeItem subItem = new TreeItem(item, SWT.NONE);
subItem.setText("item " + j);
for (int k = 0; k < 4; k++) {
TreeItem subsubItem = new TreeItem(subItem,
SWT.NONE);
subsubItem.setText("item " + k);
}
}
}
tree.addSelectionListener(new SelectionAdapter() {});
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
------- Comment #1 From Steve Northover 2004-10-07 19:39:16 -0400 -------
This behavior can't be changed now because application code now relies on it.
Sorry.
Actions:Home | New | Search | Find | Reports | Requests | New Account | Log In | Terms of Use
4
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Bug 31021
Summary: Tree - Selection listener stops default expansion
Product: [Eclipse] Platform Reporter: Veronika Irvine <[email protected]>
Component: SWT Assignee: Steve Northover <[email protected]>
Status: RESOLVED WONTFIX QA Contact:
Severity: normal
Priority: P3
Version: 2.1
Target Milestone: ---
Hardware: PC
OS: Windows XP
Whiteboard:
Description: Opened: 2003-02-05 14:52 -0400
I20030205
Run the following example. Double click on a tree item and notice that it does
not expand.
Comment out the Selection listener and now double click on any tree item and
notice that it expands.
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Tree tree = new Tree(shell, SWT.BORDER);
for (int i = 0; i < 4; i++) {
TreeItem item = new TreeItem(tree, SWT.NONE);
item.setText("item " + i);
for (int j = 0; j < 4; j++) {
TreeItem subItem = new TreeItem(item, SWT.NONE);
subItem.setText("item " + j);
for (int k = 0; k < 4; k++) {
TreeItem subsubItem = new TreeItem(subItem,
SWT.NONE);
subsubItem.setText("item " + k);
}
}
}
tree.addSelectionListener(new SelectionAdapter() {});
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
------- Comment #1 From Steve Northover 2004-10-07 19:39:16 -0400 -------
This behavior can't be changed now because application code now relies on it.
Sorry.
Description: Opened: 2003-02-05 14:52 -0400
I20030205
Run the following example. Double click on a tree item and notice that it does
not expand.
Comment out the Selection listener and now double click on any tree item and
notice that it expands.
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Tree tree = new Tree(shell, SWT.BORDER);
for (int i = 0; i < 4; i++) {
TreeItem item = new TreeItem(tree, SWT.NONE);
item.setText("item " + i);
for (int j = 0; j < 4; j++) {
TreeItem subItem = new TreeItem(item, SWT.NONE);
subItem.setText("item " + j);
for (int k = 0; k < 4; k++) {
TreeItem subsubItem = new TreeItem(subItem,
SWT.NONE);
subsubItem.setText("item " + k);
}
}
}
tree.addSelectionListener(new SelectionAdapter() {});
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
CONTACT LEGAL
Bugzilla – Full Text Bug Listing
Home | New | Search | Find | Reports | Requests | New Account | Log In | Terms of Use
Bug 31021
Summary: Tree - Selection listener stops default expansion
Product: [Eclipse] Platform Reporter: Veronika Irvine <[email protected]>
Component: SWT Assignee: Steve Northover <[email protected]>
Status: RESOLVED WONTFIX QA Contact:
Severity: normal
Priority: P3
Version: 2.1
Target Milestone: ---
Hardware: PC
OS: Windows XP
Whiteboard:
Description: Opened: 2003-02-05 14:52 -0400
I20030205
Run the following example. Double click on a tree item and notice that it does
not expand.
Comment out the Selection listener and now double click on any tree item and
notice that it expands.
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Tree tree = new Tree(shell, SWT.BORDER);
for (int i = 0; i < 4; i++) {
TreeItem item = new TreeItem(tree, SWT.NONE);
item.setText("item " + i);
for (int j = 0; j < 4; j++) {
TreeItem subItem = new TreeItem(item, SWT.NONE);
subItem.setText("item " + j);
for (int k = 0; k < 4; k++) {
TreeItem subsubItem = new TreeItem(subItem,
SWT.NONE);
subsubItem.setText("item " + k);
}
}
}
tree.addSelectionListener(new SelectionAdapter() {});
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
------- Comment #1 From Steve Northover 2004-10-07 19:39:16 -0400 -------
This behavior can't be changed now because application code now relies on it.
Sorry.
Actions:Home | New | Search | Find | Reports | Requests | New Account | Log In | Terms of Use
4
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Description: Opened: 2007-02-22 23:35 -0400
I wand to create a new plugin in Eclipse using CDT. Shall it possible. I had
made a R&D in eclipse documentation. I had get an idea about create a plugin
using Java. But i wand to create a new plugin ( user defined plugin ) using
CDT. After that I wand to impliment it in my programe. If it possible?. Any
one can help me please...
Bug 175222
Summary: Create a new plugin using CDT.
Product: [Tools] CDT Reporter: Sabeesh C.S. <[email protected]>
Component: cdt-build Assignee: [email protected] <cdt-build-
Status: RESOLVED
INVALID
QA Contact:
Severity: normal
Priority: P3 CC: [email protected]
Version: 3.1.1
Target Milestone: ---
Hardware: PC
OS: Linux
Whiteboard:
Description: Opened: 2007-02-22 23:35 -0400
I wand to create a new plugin in Eclipse using CDT. Shall it possible. I had
made a R&D in eclipse documentation. I had get an idea about create a plugin
using Java. But i wand to create a new plugin ( user defined plugin ) using
CDT. After that I wand to impliment it in my programe. If it possible?. Any
one can help me please...
------- Comment #1 From Norbert Plött 2007-02-23 01:55:42 -0400 -------
Saabeesh,
the way I understand it you want to create a plug-in and do the code
implementation in C/C++ using the CDT. Eclipse supports only Java
implementations. In theory you could probably call into your C/C++ library via
the Java native interface but this is probably not what you want to do.
In any case you would need to create at least a Java wrapper around your
implementation.
Do I read you right?
------- Comment #2 From Chris Recoskie 2007-02-23 08:14:04 -0400 -------
I don't see a bug or enhancement described here... this question belongs on the
newsgroup.
CONTACT LEGAL
Bugzilla – Full Text Bug Listing
Home | New | Search | Find | Reports | Requests | New Account | Log In | Terms of Use
Bug 175222
Summary: Create a new plugin using CDT.
Product: [Tools] CDT Reporter: Sabeesh C.S. <[email protected]>
Component: cdt-build Assignee: [email protected] <cdt-build-
Status: RESOLVED
INVALID
QA Contact:
Severity: normal
Priority: P3 CC: [email protected]
Version: 3.1.1
Target Milestone: ---
Hardware: PC
OS: Linux
Whiteboard:
Description: Opened: 2007-02-22 23:35 -0400
I wand to create a new plugin in Eclipse using CDT. Shall it possible. I had
made a R&D in eclipse documentation. I had get an idea about create a plugin
using Java. But i wand to create a new plugin ( user defined plugin ) using
CDT. After that I wand to impliment it in my programe. If it possible?. Any
one can help me please...
------- Comment #1 From Norbert Plött 2007-02-23 01:55:42 -0400 -------
Saabeesh,
the way I understand it you want to create a plug-in and do the code
implementation in C/C++ using the CDT. Eclipse supports only Java
implementations. In theory you could probably call into your C/C++ library via
the Java native interface but this is probably not what you want to do.
In any case you would need to create at least a Java wrapper around your
implementation.
Do I read you right?
------- Comment #2 From Chris Recoskie 2007-02-23 08:14:04 -0400 -------
I don't see a bug or enhancement described here... this question belongs on the
newsgroup.
Actions:Home | New | Search | Find | Reports | Requests | New Account | Log In | Terms of Use
5
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2
Cuezilla
1
Survey
6
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2
Cuezilla
1
Survey
6
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Survey the users
872 developers 1,354 reporterswith at least 50 bugs
assigned to them.who have reported at least 30 bugs.
7
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Survey the users
872 developers 1,354 reporters156 responses (19%) 310 responses (26%)
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Survey’s aim
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Survey’s aim
Learn developers’ problems and information needs—and
what reporters provide.
9
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product namecomponent nameoperating systemobserved behaviourexpected behaviour
You were given wrongcode examplessteps to reproducetest casesstack traces
There were errors inbad grammarunstructured textprose texttoo long textno spell check
The reporter usedduplicatesspamincomplete info.viruses/worms
Others
Problems faced
10
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Question 1Which of the following problems have your encountered when fixing bugs?(select as many as you wish)
product namecomponent nameoperating systemobserved behaviourexpected behaviour
You were given wrongcode examplessteps to reproducetest casesstack traces
There were errors inbad grammarunstructured textprose texttoo long textno spell check
The reporter usedduplicatesspamincomplete info.viruses/worms
Others
Problems faced
10
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Question 1Which of the following problems have your encountered when fixing bugs?(select as many as you wish)
Question 2Which three caused you the most delay in fixing bugs?(select at most three items)
product namecomponent nameoperating systemobserved behaviourexpected behaviour
You were given wrongcode examplessteps to reproducetest casesstack traces
There were errors inbad grammarunstructured textprose texttoo long textno spell check
The reporter usedduplicatesspamincomplete info.viruses/worms
Others
Problems faced
10
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ResponsesM
ost d
elay
cau
sed
Encountered when fixing a bug11
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ResponsesM
ost d
elay
cau
sed
Encountered when fixing a bug viruses/spam
wrong system information
11
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ResponsesM
ost d
elay
cau
sed
Encountered when fixing a bug viruses/spam
wrong system information
errors in test casesduplicates
bad grammar
11
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ResponsesM
ost d
elay
cau
sed
Encountered when fixing a bug viruses/spam
wrong system information
errors in test casesduplicates
bad grammar
wrong observed behaviourwrong expected behaviour
wrong product information
11
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ResponsesM
ost d
elay
cau
sed
Encountered when fixing a bug viruses/spam
wrong system information
errors in test casesduplicates
bad grammar
wrong observed behaviourwrong expected behaviour
wrong product information
erroneous steps to reproduce
incomplete information
11
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productcomponentversionseverity
hardwareoperating systemsummarybuild information
observed behaviourexpected behavioursteps to reproducestack traces
screen shotscode exampleserror reportstest cases
Information needs
12
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productcomponentversionseverity
hardwareoperating systemsummarybuild information
observed behaviourexpected behavioursteps to reproducestack traces
screen shotscode exampleserror reportstest cases
Question 1Question 3Which of the following items have you previously used when fixing bugs?(select as many as you wish)
Information needs
12
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productcomponentversionseverity
hardwareoperating systemsummarybuild information
observed behaviourexpected behavioursteps to reproducestack traces
screen shotscode exampleserror reportstest cases
Question 1Question 3Which of the following items have you previously used when fixing bugs?(select as many as you wish)
Which three items helped you the most?(select at most three items)
Question 4
Information needs
12
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ResponsesHe
lped
mos
t
Used when fixing a bug13
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ResponsesHe
lped
mos
t
Used when fixing a bughardware severity
version
13
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ResponsesHe
lped
mos
t
Used when fixing a bughardware severity
version
expected behavior
test cases/examples
observed behavior
screenshots
13
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ResponsesHe
lped
mos
t
Used when fixing a bughardware severity
version
expected behavior
test cases/examples
observed behavior
screenshots
steps to reproduce
stack traces
13
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productcomponentversionseverity
hardwareoperating systemsummarybuild information
observed behaviourexpected behavioursteps to reproducestack traces
screen shotscode exampleserror reportstest cases
Same options as for developers
Questions to reporters
14
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productcomponentversionseverity
hardwareoperating systemsummarybuild information
observed behaviourexpected behavioursteps to reproducestack traces
screen shotscode exampleserror reportstest cases
Same options as for developers
Question 1What information have you previously provided in bug reports?(select as many as you wish)
Questions to reporters
14
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Question 2What of the above information was most difficult to provide?(select at most three items)
Question 3In your opinion, what information is most relevant to developers?(select at most three items)
Question 1What information have you previously provided in bug reports?(select as many as you wish)
Questions to reporters
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Rated most helpfulby developers
steps to reproduce
stack traces
test cases
observed behaviour
screenshots
code examples
summary
version
steps to reproduce
test cases
observed behaviour
stack traces
expected behaviour
version
code examples
error reports
expected behaviour
error reports
build information
summary
steps to reproduce
product
observed behaviour
expected behaviour
version
operating system
component
summary
severity
build information16
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Provided bymost reporters
Rated most helpfulby developers
steps to reproduce
stack traces
test cases
observed behaviour
screenshots
code examples
summary
version
steps to reproduce
test cases
observed behaviour
stack traces
expected behaviour
version
code examples
error reports
expected behaviour
error reports
build information
summary
steps to reproduce
product
observed behaviour
expected behaviour
version
operating system
component
summary
severity
build information16
![Page 34: Deadlock problems](https://reader033.fdocuments.us/reader033/viewer/2022052321/5564b0e1d8b42a366c8b571d/html5/thumbnails/34.jpg)
Provided bymost reporters
Rated most helpfulby developers
Rated most helpfulby reporters
steps to reproduce
stack traces
test cases
observed behaviour
screenshots
code examples
summary
version
steps to reproduce
test cases
observed behaviour
stack traces
expected behaviour
version
code examples
error reports
expected behaviour
error reports
build information
summary
steps to reproduce
product
observed behaviour
expected behaviour
version
operating system
component
summary
severity
build information16
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Provided bymost reporters
Rated most helpfulby developers
Rated helpfulby most reporters
steps to reproduce
stack traces
test cases
observed behaviour
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2
Cuezilla
1
Survey
19
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I wand to create a new plugin in Eclipse using CDT. Shall it possible. I had made a R&D in eclipse documentation. I had get an idea about create a plugin using Java. But i wand to create a new plugin ( user defined plugin ) using CDT. After that I wand to impliment it in my programe. If it possible?. Any one can help me please...
Create a new plugin using CDT.
Rating bug reports
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I wand to create a new plugin in Eclipse using CDT. Shall it possible. I had made a R&D in eclipse documentation. I had get an idea about create a plugin using Java. But i wand to create a new plugin ( user defined plugin ) using CDT. After that I wand to impliment it in my programe. If it possible?. Any one can help me please...
Create a new plugin using CDT.
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Rating bug reports
21
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I wand to create a new plugin in Eclipse using CDT. Shall it possible. I had made a R&D in eclipse documentation. I had get an idea about create a plugin using Java. But i wand to create a new plugin ( user defined plugin ) using CDT. After that I wand to impliment it in my programe. If it possible?. Any one can help me please...
Create a new plugin using CDT.
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Rating bug reportsTotal votes received: 1,186Total reports voted: 289
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Bug 31021
Summary: Tree - Selection listener stops default expansion
Product: [Eclipse] Platform Reporter: Veronika Irvine <[email protected]>
Component: SWT Assignee: Steve Northover <[email protected]>
Status: RESOLVED WONTFIX QA Contact:
Severity: normal
Priority: P3
Version: 2.1
Target Milestone: ---
Hardware: PC
OS: Windows XP
Whiteboard:
Description: Opened: 2003-02-05 14:52 -0400
I20030205
Run the following example. Double click on a tree item and notice that it does
not expand.
Comment out the Selection listener and now double click on any tree item and
notice that it expands.
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Tree tree = new Tree(shell, SWT.BORDER);
for (int i = 0; i < 4; i++) {
TreeItem item = new TreeItem(tree, SWT.NONE);
item.setText("item " + i);
for (int j = 0; j < 4; j++) {
TreeItem subItem = new TreeItem(item, SWT.NONE);
subItem.setText("item " + j);
for (int k = 0; k < 4; k++) {
TreeItem subsubItem = new TreeItem(subItem,
SWT.NONE);
subsubItem.setText("item " + k);
}
}
}
tree.addSelectionListener(new SelectionAdapter() {});
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
------- Comment #1 From Steve Northover 2004-10-07 19:39:16 -0400 -------
This behavior can't be changed now because application code now relies on it.
Sorry.
CUEZILLA
22
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Bug 31021
Summary: Tree - Selection listener stops default expansion
Product: [Eclipse] Platform Reporter: Veronika Irvine <[email protected]>
Component: SWT Assignee: Steve Northover <[email protected]>
Status: RESOLVED WONTFIX QA Contact:
Severity: normal
Priority: P3
Version: 2.1
Target Milestone: ---
Hardware: PC
OS: Windows XP
Whiteboard:
Description: Opened: 2003-02-05 14:52 -0400
I20030205
Run the following example. Double click on a tree item and notice that it does
not expand.
Comment out the Selection listener and now double click on any tree item and
notice that it expands.
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Tree tree = new Tree(shell, SWT.BORDER);
for (int i = 0; i < 4; i++) {
TreeItem item = new TreeItem(tree, SWT.NONE);
item.setText("item " + i);
for (int j = 0; j < 4; j++) {
TreeItem subItem = new TreeItem(item, SWT.NONE);
subItem.setText("item " + j);
for (int k = 0; k < 4; k++) {
TreeItem subsubItem = new TreeItem(subItem,
SWT.NONE);
subsubItem.setText("item " + k);
}
}
}
tree.addSelectionListener(new SelectionAdapter() {});
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
------- Comment #1 From Steve Northover 2004-10-07 19:39:16 -0400 -------
This behavior can't be changed now because application code now relies on it.
Sorry.
CUEZILLA
22
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CUEZILLA
detects Itemisations
Keywords
Code samples
Stack traces
Patches
Screenshots
computes Readability23
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Build and evaluate Cuezillabuild
CUEZILLA
24
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Build and evaluate Cuezilla
CUEZILLA
evaluate
build
CUEZILLA
24
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Within projects
Evaluation Setup
25
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Within projects
Evaluation Setup
48% agreement91% off by one
25
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Make recommendations
CUEZILLA
+ Stack trace
26
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Make recommendations
CUEZILLA
+ Stack trace
26
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Incentives to reporters
27
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• Bug reports containing stack traces get fixed sooner.
• Bug reports that are easier to read have lower lifetimes.
• Code samples in your bug report increase chances of it getting fixed.
Incentives to reporters
28
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Duplicates
Duplicates often add useful information. That this information is filed under a new report is not ideal.
Apache Developer
“”
29
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Future of bug tracking
30
lies in thinkingoutside the box!
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ed
most
Used when fixing a bug
hardware severity
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14
31
Future of bug tracking
29
lies in thinking
outside the box!