Problems when using shared instances of struts and apache-commons?
I found this worrisome statement on this page (http://struts.apache.org/1.3.8/userGuide/configuration.html) regarding sharing jar files across multiple applications:
<i>When a class is loaded from a shared class loader, static variables used within that class become global as well. This can cause inter-webapp conflicts when the underlying code assumes that the statics are global only within a particular web applicaiton (which would be true if the class was loaded from the webapp class loader). There are many cases where the framework, and the Commons libraries it relies on, use static variables to maintain information that is presumed to be visible only within a single web application. <b>Sharing these JAR files can cause unwanted interactions, and probably cause incorrect behavior</b>.</i>
For those of you currently using Struts and Apache Commons (and perhaps other open source libraries) have you run into any issues when sharing the jars amongst multiple applications?
I would like to avoid having multiple applications loading their own copies of these libraries, for obvious reasons. However, if there are issues with doing so, I may have to relax that position.
To answer my own questions, while we didn't run into any issues with sharing Struts, it may be a good idea to incorporate the libraries directly into the web app if suspicious behaviour is observed by the application.
Also, the taglib definitions could not be loaded from the referenced jar files - these had to be placed into the WEB-INF directory, which introduces a synchronization problem - you could conceivably have different versions of the tld's and the base libraries.
Similar Messages
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Coercion problem when using Shared Variable
I have a curious coercion problem when using Shared Variables. I want to share the state of a State Machine, which is an enum saved as a control (typedef) called TYPE State (see attached). I create a shared variable called State and define it as a Custom Control, using the just-mentioned typedef. So far, so good. I've attached three simple VIs -- the first one, Init State, simply wires a constant to the input of the Shared Variable to initialize it -- the wired constant is, of course, defined by the typedef. However, the Get State and Set State, meant to wire an indicator (for reading the state) or control (for setting it), develop coercion dots when wired into the Shared Variable. Why? How do I get rid of the dot? [I suppose I could abandon my typedef and custom control, but the beauty of typedefs and custom controls is that it "enforces" rules, lets you use enums for clarity, keeps the code "honest", etc. -- I'd hate to give that up just to get rid of a dot!].
On a related note, the code seems to work. This is much too simplistic to do anything, but if you open Set State and Get State, set the state to anything, run it (it immediately stops, of course), then run Get State, you'll see the chosen state appear in the indicator. So it does appear to work. The "error" (coercion dot) may, I suppose, be a "bug" in Labview because it can't figure out the mapping of the (very simple!) Custom Control, but if so, I hope it gets fixed quickly!
Bob Schor
Attachments:
Coercion Problem1.zip 38 KBHello Bob,
I am also seeing this behavior, I will escalate this question to our LabVIEW developers and post again here no later than next Tuesday, November 27th as National Instruments will be closed for the remainder of this week.
If this issue does turn into a product suggestion, I would suspect the workaround would to live with the coersion dot for the time being.
Enjoy the holiday
Regards,
Erik J.
Applications Engineer
National Instruments -
I upgraded to Lion and then all video clips on for instance Youtube freeze every tenth second to buffer more data. I have a MacBook Pro and never had any problems when using Snow Leopard. Has Lion problems with this?
Ulf, SwedenUse the trackpad to scroll, thats what it was designed for. The scroll bars automatically disappear when not being used and will appear if you scroll up or down using the trackpad.
This is a user-to-user forum and most people will post on here if they have problems. You very rarely get people posting to say there update went smooth. The fact is the vast majority of Mountain Lion users will not be experiencing any major problems with the OS, or maybe with apps which are not compatible, but thats hardly Apple's fault if developers don't update their apps. -
Since installing LTR 5.4, which I've now upgraded to 5.6, I've encountered repeated slowness and malfunctions in operations, especially when using the Compare View function and the Tab key to open and close the right and left side panels. Such problems never arose during two years of using LTR-4 and nothing else has changed on my computer. I have a pretty simple system with only a few plug-ins, which are usually not in operation. I have 12GB of RAM in my Windows 7 PC. I could illustrate these problems with screen shots if you would tell me how to submit screen shots. Otherwise I will try to describe the problems in words.
The problem is clearly cumulative, growing worse as usage time passes. Compare View feature gradually slows down and eventually seems to choke as my work session proceeds. If I Exit LTR and re-enter and start all over, things will work normally for maybe 30 minutes, but then the Compare View feature begins to become very slow to respond. In a recent example with my screen full of thumbnails in Library mode I highlighted two images to compare. LTR started to open the Compare View screen by first having the top row of thumbnails disappear to be replaced by the "SELECT" and "CANDIDATE" words in their spaces (but no images), but Compare View never succeeded in gaining control of the screen. After some seconds the top row of thumbnails reasserted its position and the Compare View windows disappeared. But LTR kept trying to bring them back. Again the top row of thumbnails would go away, Select and candidate would reappear, try again, and give up. This went on for at least 2-3 minutes before I tried to choose File and Exit, but even that did not initially want to respond. It doesn't like to accept other commands when it's trying to open Compare View. Finally it allowed me to exit.
To experiment I created a new catalog of 1100 images. After 30-40 minutes, the Compare View function began to operate very slowly. With left and right side panels visible and two thumbnails highlighted, hitting Compare View can take half a minute before the two mid-size images open in their respective SELECT and CANDIDATE windows. When the side panels are open and two images are in the Select/Candidate spaces, hitting the Tab button to close the side panels produces a very delayed response--25-30 seconds to close them, a few more seconds to enlarge the two images to full size. To reverse the process (i.e., to recall the two side panels), hitting Tab would make the two sides of the screen go black for up to a minute, with no words visible. Eventually the info fields in the panels would open up.
I also created a new user account and imported a folder of 160 images. After half an hour Compare View began mis-placing data. (I have a screen shot to show this.) CANDIDATE appears on the left side of SELECT, whereas it should be on the right. The accompanying camera exposure data appears almost entirely to the left of the mid-screen dividing line. Although the Candidate and Select headings were transposed, the image exposure data was not, but the data for the image on the right was almost entirely to the left of the line dividing the screen in two.
Gurus in The Lightroom Forum have examined Task Manager data showing Processes running and Performance indicators and they see nothing wrong. I could also send screen shots of this data.
At this point, the only way I can process my images is to work 30-40 minutes and then shut down everything, exit, and re-start LTR. This is not normal. I hope you can find the cause, and then the solution. If you would like to see my screen shots, tell me how to submit them.
Ollie
[email protected]Since installing LTR 5.4, which I've now upgraded to 5.6, I've encountered repeated slowness and malfunctions in operations, especially when using the Compare View function and the Tab key to open and close the right and left side panels. Such problems never arose during two years of using LTR-4 and nothing else has changed on my computer. I have a pretty simple system with only a few plug-ins, which are usually not in operation. I have 12GB of RAM in my Windows 7 PC. I could illustrate these problems with screen shots if you would tell me how to submit screen shots. Otherwise I will try to describe the problems in words.
The problem is clearly cumulative, growing worse as usage time passes. Compare View feature gradually slows down and eventually seems to choke as my work session proceeds. If I Exit LTR and re-enter and start all over, things will work normally for maybe 30 minutes, but then the Compare View feature begins to become very slow to respond. In a recent example with my screen full of thumbnails in Library mode I highlighted two images to compare. LTR started to open the Compare View screen by first having the top row of thumbnails disappear to be replaced by the "SELECT" and "CANDIDATE" words in their spaces (but no images), but Compare View never succeeded in gaining control of the screen. After some seconds the top row of thumbnails reasserted its position and the Compare View windows disappeared. But LTR kept trying to bring them back. Again the top row of thumbnails would go away, Select and candidate would reappear, try again, and give up. This went on for at least 2-3 minutes before I tried to choose File and Exit, but even that did not initially want to respond. It doesn't like to accept other commands when it's trying to open Compare View. Finally it allowed me to exit.
To experiment I created a new catalog of 1100 images. After 30-40 minutes, the Compare View function began to operate very slowly. With left and right side panels visible and two thumbnails highlighted, hitting Compare View can take half a minute before the two mid-size images open in their respective SELECT and CANDIDATE windows. When the side panels are open and two images are in the Select/Candidate spaces, hitting the Tab button to close the side panels produces a very delayed response--25-30 seconds to close them, a few more seconds to enlarge the two images to full size. To reverse the process (i.e., to recall the two side panels), hitting Tab would make the two sides of the screen go black for up to a minute, with no words visible. Eventually the info fields in the panels would open up.
I also created a new user account and imported a folder of 160 images. After half an hour Compare View began mis-placing data. (I have a screen shot to show this.) CANDIDATE appears on the left side of SELECT, whereas it should be on the right. The accompanying camera exposure data appears almost entirely to the left of the mid-screen dividing line. Although the Candidate and Select headings were transposed, the image exposure data was not, but the data for the image on the right was almost entirely to the left of the line dividing the screen in two.
Gurus in The Lightroom Forum have examined Task Manager data showing Processes running and Performance indicators and they see nothing wrong. I could also send screen shots of this data.
At this point, the only way I can process my images is to work 30-40 minutes and then shut down everything, exit, and re-start LTR. This is not normal. I hope you can find the cause, and then the solution. If you would like to see my screen shots, tell me how to submit them.
Ollie
[email protected] -
Hi all, I bought one iphone and 3 ipads, i set up all on one apple ID. Now i have a problem when using messages: when sending message from one device it appears again on screen from the other 3 devices. I need help on how to set up messages on each device separately and to start using messages app on each device independently. Thanks
search google for "iphone remove picture from contact"
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I have problems when using the camera on my iPhone 4S (the same for my daughter with a iPhone4)
A veil around the blurred photo, a development impossible and completely unable to read the bar code or QR code. What to do?Sounds kind of stupid, but check to make sure that your iphone case cover is not blocking the edge of the camera lens. I had a silicone case on my 3S and when it got older, it started tot slip and the edges of my pictures were blurred.
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NLS support problems when using AL32UTF8 in dads.conf
Hello,
Following a post by Joel Kallman, in one of the forum threads, about the mandatory use of AL32UTF8 in dads.conf, when running HTML DB v2.0, I changed my PlsqlNLSLanguage parameter accordingly.
Prior to the change, I experienced some problems when using non-English characters some application items appeared as gibberish when contained non-English characters, and the LIKE operator didn't perform as expected. After the change, it all seems to work OK, but now I have a different problem.
All the non-English characters in my HTML page source code appears as gibberish. On screen, at run time, everything display correctly, but the source code seems to be corrupted. It is very difficult, and very annoying to debug the pages that way. Is there a way to enjoy both worlds Using AL32UTF8 in the dads.conf, as required, and still getting a coherent HTML source code, containing non-English characters?
Thanks,
Arie.Joel,
I use the following settings and they work fine for me:
Operating system:
LANG=de_DE
LANGVAR=de_DE.UTF-8
NLS_LANG=AMERICAN_AMERICA.WE8ISO8859P1
daust:oracle[o1020]> uname -a
Linux daust.opal-consulting.de 2.4.21-37.EL #1 Wed Sep 7 13:35:21 EDT 2005 i686 i686 i386 GNU/Linux
daust:oracle[o1020]> cat /etc/redhat-release
Red Hat Enterprise Linux ES release 3 (Taroon Update 6)
daust:oracle[o1020]>
marvel.conf:
<Location /pls/htmldb>
Order deny,allow
PlsqlDocumentPath docs
AllowOverride None
PlsqlDocumentProcedure wwv_flow_file_manager.process_download
PlsqlDatabaseConnectString localhost:1521:o1020
PlsqlNLSLanguage AMERICAN_AMERICA.WE8ISO8859P1
PlsqlAuthenticationMode Basic
SetHandler pls_handler
PlsqlDocumentTablename wwv_flow_file_objects$
PlsqlDatabaseUsername HTMLDB_PUBLIC_USER
PlsqlDefaultPage htmldb
PlsqlDatabasePassword @BZvJYqadreElOqj5poCB5gE=
Allow from all
</Location>
Database:
daust:oracle[o1020]> sqlplus "/ as sysdba"
SQL> select * from nls_database_parameters;
PARAMETER VALUE
NLS_LANGUAGE AMERICAN
NLS_TERRITORY AMERICA
NLS_CURRENCY $
NLS_ISO_CURRENCY AMERICA
NLS_NUMERIC_CHARACTERS .,
NLS_CHARACTERSET WE8ISO8859P1
NLS_CALENDAR GREGORIAN
NLS_DATE_FORMAT DD-MON-RR
NLS_DATE_LANGUAGE AMERICAN
NLS_SORT BINARY
NLS_TIME_FORMAT HH.MI.SSXFF AM
PARAMETER VALUE
NLS_TIMESTAMP_FORMAT DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_TZ_FORMAT HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_TZ_FORMAT DD-MON-RR HH.MI.SSXFF AM TZR
NLS_DUAL_CURRENCY $
NLS_COMP BINARY
NLS_LENGTH_SEMANTICS BYTE
NLS_NCHAR_CONV_EXCP FALSE
NLS_NCHAR_CHARACTERSET AL16UTF16
NLS_RDBMS_VERSION 10.2.0.1.0####################
Using AL32UTF8 resulted in the same problem as described ( and fixed ) here: Re: Strange - HTML not written correctly
So, what is the proper configuration of the DAD, perhaps there are different ones for Unicode instances and non-Unicode instances.
~Dietmar. -
ORA-01403: no data found Problem when using AUTOMATIC ROW FETCH to populate
ORA-01403: no data found Problem when using AUTOMATIC ROW FETCH to populate a form.
1) Created a FORM on EMP using the wizards. This creates an AUTOMATIC ROW FETCH
TABLE NAME - EMP
Item Containing PRIMARY KEY - P2099_EMPNO
Primary key column - EMPNO
By default the automatic fetch has a ‘Process Error Message’ of ‘Unable to fetch row.’
2) Created a HTML region. Within this region add
text item P2099_FIND_EMPNO
Button GET_EMP to submit
Branch Modified the conditional branch created during button creation to set P2099_EMPNO with &P2099_FIND_EMPNO.
If I then run the page, enter an existing employee number into P2099_EMPNO and press the GET_EMP button the form is populated correctly. But if I enter an employee that does not exist then I get the oracle error ORA-01403: no data found and no form displayed but a message at the top of the page ‘Action Processed’.I was expecting a blank form to be displayed with the message ‘Unable to fetch row.’
I can work around this by making the automated fetch conditional so that it checks the row exists first. Modify the Fetch row from EMP automated fetch so that it is conditional
EXIST (SQL query returns at least one row)
select 'x'
from EMP
where EMPNO = :P2099_EMPNO
But this means that when the employee exists I must be fetching from the DB twice, once for the condition and then again for the actual row fetch.
Rather than the above work around is there something I can change so I don’t get the Oracle error? I’m now wondering if the automatic row fetch is only supposed to be used when linking a report to a form and that I should be writing the fetch process manually. The reason I haven’t at the moment is I’m trying to stick with the automatic wizard generation as much as I can.
Any ideas?
Thanks PeteHi Mike,
I've tried doing that but it doesn't seem to make any difference. If I turn debug on it shows below.
0.05: Computation point: AFTER_HEADER
0.05: Processing point: AFTER_HEADER
0.05: ...Process "Fetch Row from EMP": DML_FETCH_ROW (AFTER_HEADER) F|#OWNER#:EMP:P2099_EMPNO:EMPNO
0.05: Show ERROR page...
0.05: Performing rollback...
0.05: Processing point: AFTER_ERROR_HEADER
I don't really wan't the error page, either nothing with the form not being populated or a message at the top of the page.
Thanks Pete -
Problem when using About Operator in Contains Query
Hi,
I'm new to Oracle and this forums too. I have a problem when using about operator in contains query.
I create a table with some records and then create a context index on 'name' column.
CREATE TABLE my_items (
id NUMBER(10) NOT NULL,
name VARCHAR2(200) NOT NULL,
description VARCHAR2(4000) NOT NULL,
price NUMBER(7,2) NOT NULL
ALTER TABLE my_items ADD (
CONSTRAINT my_items_pk PRIMARY KEY (id)
CREATE SEQUENCE my_items_seq;
INSERT INTO my_items VALUES(my_items_seq.nextval, 'Car', 'Car description', 1);
INSERT INTO my_items VALUES(my_items_seq.nextval, 'Train', 'Train description', 2);
INSERT INTO my_items VALUES(my_items_seq.nextval, 'Japan', 'Japan description', 3);
INSERT INTO my_items VALUES(my_items_seq.nextval, 'China', 'China description', 4);
COMMIT;
EXEC ctx_ddl.create_preference('english_lexer','basic_lexer');
EXEC ctx_ddl.set_attribute('english_lexer','index_themes','yes');
EXEC ctx_ddl.set_attribute('english_lexer','theme_language','english');
CREATE INDEX my_items_name_idx ON my_items(name) INDEXTYPE IS CTXSYS.CONTEXT PARAMETERS('lexer english_lexer');
EXEC ctx_ddl.sync_index('my_items_name_idx');Then I perform contains query to retrieve record :
SELECT count(*) FROM my_items WHERE contains(name, 'Japan', 1) > 0;
COUNT(*)
1
SELECT count(*) FROM my_items WHERE contains(name, 'about(Japan)', 1) > 0;
COUNT(*)
1But the problem is when I using ABOUT operator like in Oracle's English Knowledge Base Category Hierarchy it return 0
SELECT count(*) FROM my_items WHERE contains(name, 'about(Asia)', 1) > 0;
COUNT(*)
0
SELECT count(*) FROM my_items WHERE contains(name, 'about(transportation)', 1) > 0;
COUNT(*)
0I can't figure out what 's wrong in my query or in my index.
Any help will be appreciated.
Thanks,
Hieu Nguyen
Edited by: user2944391 on Jul 10, 2009 3:25 AMHello (and welcome),
You'd be best asking this question in the Oracle Text forum, here:
Text
And by the way, it will help others to analyse if you put {noformat}{noformat} (lowercase code in curly brackets) before and after your code snippets.
Good luck! -
When using FireFox I often cannot view pictures in Hotmail emails, but I have no problem when using other browsers
Do you also have this issue if you temporarily switch to Private Browsing mode?
*https://support.mozilla.org/kb/Private+Browsing
*Tools > Options > Privacy, choose the setting <b>Firefox will: Use custom settings for history</b>
*Select: [X] "Always use private browsing mode"
Start Firefox in <u>[[Safe Mode]]</u> to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
See also:
*https://support.mozilla.org/kb/fix-login-issues-on-websites-requrie-passwords -
i tried everything in this article, but still have the same problem when using Rapidweaver software. NOT with other software. I am converting my iWeb site to Rapidweaver, whenever there is a calmer period in my office. I have 16 Gb RAM on my NEW iMac and have Parallels desktop, mail, safari, iWeb and Rapidweaver running simultanious.
I never have the problem if i don't use Rapidweaver, but after i have added several pages to Rapidweaver, the problem begins. my iMac won't start up. the only thing that works is re-installing Macos OS X 10.8. i tried even whiping the completeharddrive, and reinstalling with a complete new user, the same problem.
I had it on my previous iMac also, and bought a new one because i thought the problem was in the iMac first. i hadn't noticed it only happens with using rapidweaver.
i sent my complete rapidweaver project to the programmers from rapidweaver at Realmacsoftware, but they couldnt reproduce my problem, there macs started up without any problem.
i deleted all the rapidweaver addons and extra stacks, and started a complete new project.
saterday i had the problem again, after adding about 5 new pages to my rapidweaver site.
i think i have reinstalled Macos OS X 10.8.2 20 or 30 times by now
does anyone have a sollution?Type '''about:support''' in the URL bar and hit Enter.
Scroll down almost to the bottom of that listing and see if you have '''user.js Preferences''' just above the '''''Graphics''''' category.
If you do have that, click on '''user.js file''' in this sentence. <br />
''Your profile folder contains a user.js file, which includes preferences that were not created by Firefox.''
Does that "different homepage" appear in that user.js file? -
Performance problem when using CAPS LOCK piano input
Dear reader,
I'm very new to Logic and am running into a performance problem when using the CAPS LOCK-piano-keyboard for input of an instrument: when I'm not recording everything is fine and the program instantly responds on my keystrokes, but as soon as I go into record-mode there is sometimes a delay in the response-time (so I press a key and it takes up to half a second longer before the note is actually played).
Is there anything to do about this to improve performance (for example turning of certain features of the application), or should I never use the CAPS LOCK keyboard anyway and go straight for an external MIDI-keyboard?
Thanks and regards,
Tim MetzDoes your project have Audio tracks and just how heavy it is, how many tracks? Also, what kind of Software Instrument do you use?
-
We use IE9.
I enter in https://gwserver.
Compose New mail (in Plain Text mode) with body:
Line-1
Line-2
Line-3
And send this mail , for example to itself.
the received letter will look like:
Line-1Line-2Line-3
Someone has the same problem?
SergAre you guys still on the shipping code of GW 12? Novell had a fix for this within a couple weeks of GW 12 being released from what I remember. Open an SR and get the latest code.
Or simply tell your users to user HTML.
Todd Bowman
Todd Bowman
Senior Network Analyst
University of Minnesota Physicians
612-884-0744
[email protected]
>>>
From: MarkDissington<[email protected]>
To:novell.support.groupwise.2012.web-access
Date: 5/24/2012 6:46 AM
Subject: Re: Problem when using IE9
skoltogyan;2197344 Wrote:
> The solution is?
>
> Serg
I would guess don't use IE9 until a fix is released? :-)
M.
MarkDissington
MarkDissington's Profile: http://forums.novell.com/member.php?userid=27611
View this thread: http://forums.novell.com/showthread.php?t=455634 -
Problem when using Javabeans in ADF?
Hi,
I encountered a problem when using ADF.
Please look at the following 2 classes :
public class Person
private String name;
private String city;
private int age;
public Person(String name, int age, String city)
this.name = name;
this.age = age;
this.city = city;
public Person()
public void setName(String name)
this.name = name;
public String getName()
return name;
public void setAge(int age)
this.age = age;
public int getAge()
return age;
public void setCity(String city)
this.city = city;
public String getCity()
return city;
public class PersonFactory
public PersonFactory()
public List getPersons()
List list = new ArrayList();
list.add(new Person("peit", 18, "dalian"));
list.add(new Person("robin", 22, "shenyang"));
list.add(new Person("Joe", 30, "York"));
list.add(new Person("Edi", 23, "Beijing"));
return list;
public List getNames()
List list = new ArrayList();
list.add("Peit");
list.add("Robin");
list.add("Joe");
list.add("Edi");
return list;
public void commit()
System.out.println("Data commited");
I created the PersonFactory class as DataControl, so I can use the getPersons() and getNames()(just for test, so they are simple), I drag the names from
the DataControl palette as Table in a JClientPanel, good luck, it works and displays the 4 Strings in a table, but when I drag the persons from
the DataControl palette as Table in the same JClientPanel, it does not work and raises exception :
java.lang.NullPointerException
at javax.swing.JTable.prepareRenderer(JTable.java:3731)
at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:1149)
at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:1051)
at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:974)
So, I confused why? How to edit it properly?
Thanks.
Message was edited by:
[email protected]Hi, Frank
Thank you for your reply.
I am sorry for not explaining well. I mean that the getNames() works fine, but getPersons() does not. The only diferenece between them is the former is simple string and the latter is javabean, but when I made the PersonFactory as DataControl, I set the bean class Person for the getPersons()(list of persons) bean class.
I debuged the class, the exceptions raised when the table for getPersons() setModel() method called.
So, where is the problem?
Thanks. -
Cannot email pdf using Acrobat Reader XI v11.0.3 in Windows 8. No problem when using in ms vista. ge
Cannot email pdf using Acrobat Reader XI v11.0.3 in Windows 8. No problem when using in ms vista. get "authentication error". Sometimes will get a very quick dialogue box showing the gmail login screen but then disappears. I use firefox and IE
Hi Rodney
Welcome to Apple Discussions
This sounds like one of those "oddities", contributed to by a few sources.
I can clear the Safari cache files as a temporary solution, but I encounter the same difficulties with the “problematic” files once they have been opened again.
Wondering if you disabled the Safari Cache would the refresh function work correctly? As a test you can disable the Safari Cache by Emptying the Cache first via the Safari menu, then Quit Safari. Now go to the Finder>Your User Library>Caches>Safari. Single click on the Safari folder, then Apple Key + I to open Info panel. There, check the "locked" box. This prevents further additions to the cache. The downside, you lose your ability to upload images etc. within Safari (my cache is disabled, so I use Firefox for the uploads).
Then restart Safari. Try the PDF from within Safari.
Post back
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