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Installation & Configuration
Get help with installation and configuration of OWS. Please post specific bug reports, pull requests, or source code extensions on github.
Topics: 58

58 Topics

225 Posts

Last post Re: The JVM could not be star…
by rakeshjogi View the latest post
06 May 2026, 10:00
Features & Proposals
The place to exchange and discuss feature requests and proposals. Please post specific bug reports, pull requests, or source code extensions on github.
Topics: 10

10 Topics

35 Posts

Last post Re: Java 25 suggested
by Janak Mulani View the latest post
17 Feb 2026, 08:14

New Topic

Topics

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Last post

Addressing CVEs in 1.13.0

Last post by Janak Mulani « 01 May 2026, 14:36
Replies: 8
by javaapp » 10 Feb 2026, 19:52

8 Replies

1303 Views

Last post by Janak Mulani
01 May 2026, 14:36
Sporadicall error "Missing Ressource: error.initialConfig_de"

Last post by Janak Mulani « 02 Mar 2026, 12:42
Replies: 9
by Andrej » 04 Feb 2026, 16:11

9 Replies

14283 Views

Last post by Janak Mulani
02 Mar 2026, 12:42
OWS wants to download xbean.jar from my webapp's url - why?

Last post by Janak Mulani « 24 Feb 2026, 11:07
Replies: 3
by JohannT » 17 Feb 2026, 18:33

3 Replies

681 Views

Last post by Janak Mulani
24 Feb 2026, 11:07
OpenWebStart manual proxy configured but connections bypass proxy

Last post by Janak Mulani « 30 Jan 2026, 14:12
Replies: 3
by Masuda » 28 Jan 2026, 12:16

3 Replies

774 Views

Last post by Janak Mulani
30 Jan 2026, 14:12
SOLVED: window closes when trying to redirect media

Last post by Janak Mulani « 14 Jan 2026, 08:40
Replies: 6
by mps.esupp » 12 Jan 2026, 13:59

6 Replies

1084 Views

Last post by Janak Mulani
14 Jan 2026, 08:40
[SOLVED] Missing Permission in Manifest for Oracle Forms 10g

Last post by chanteclair « 09 Jan 2026, 13:16
Replies: 16
by tofiquesoormo » 02 Sep 2020, 18:07

16 Replies

26539 Views

Last post by chanteclair
09 Jan 2026, 13:16
Clarification on OpenWebStart Versioning Policy

Last post by Janak Mulani « 02 Dec 2025, 07:29
Replies: 1
by Masuda » 02 Dec 2025, 05:57

1 Replies

500 Views

Last post by Janak Mulani
02 Dec 2025, 07:29
StackOverflowError in PAC processing

Last post by Janak Mulani « 25 Nov 2025, 10:58
Replies: 6
by Masuda » 04 Nov 2025, 06:56

6 Replies

739 Views

Last post by Janak Mulani
25 Nov 2025, 10:58
JNLP Not Reaching Stage 2

Last post by Janak Mulani « 20 Nov 2025, 17:22
Replies: 1
by cleseman » 20 Nov 2025, 14:32

1 Replies

470 Views

Last post by Janak Mulani
20 Nov 2025, 17:22
test

Last post by karakun_admin « 10 Nov 2025, 12:48

by karakun_admin » 10 Nov 2025, 12:48

0 Replies

413 Views

Last post by karakun_admin
10 Nov 2025, 12:48
Determine OpenWebstart version from launched app

Last post by mredeker « 03 Nov 2025, 09:55
Replies: 4
by mredeker » 31 Oct 2025, 14:15

4 Replies

500 Views

Last post by mredeker
03 Nov 2025, 09:55
JNLP does not launch

Last post by Janak Mulani « 15 Oct 2025, 15:11
Replies: 4
by thomas.demetriou » 08 Oct 2025, 19:12

4 Replies

661 Views

Last post by Janak Mulani
15 Oct 2025, 15:11
Cannot launch JNLP

Last post by Janak Mulani « 15 Oct 2025, 14:59
Replies: 13
by brendan_kearney » 03 Jul 2025, 19:36

13 Replies

3199 Views

Last post by Janak Mulani
15 Oct 2025, 14:59
Maven shading of Apache Compress

Last post by Janak Mulani « 05 Aug 2025, 08:47
Replies: 5
by Martin.bayley » 05 Aug 2025, 08:29

5 Replies

847 Views

Last post by Janak Mulani
05 Aug 2025, 08:47
javaws.exe stays running

Last post by Janak Mulani « 09 Jul 2025, 20:20
Replies: 3
by bm-printforce » 04 Jul 2025, 09:16

3 Replies

501 Views

Last post by Janak Mulani
09 Jul 2025, 20:20
OWS SocketPermission access denied

Last post by Janak Mulani « 19 Jun 2025, 09:02
Replies: 1
by HigyedSrnold » 16 Jun 2025, 13:55

1 Replies

435 Views

Last post by Janak Mulani
19 Jun 2025, 09:02
Playing a system sound in Windows

Last post by marek « 31 Mar 2025, 16:44
Replies: 3
by marek » 20 Mar 2025, 12:26

3 Replies

28526 Views

Last post by marek
31 Mar 2025, 16:44
Client heap will not grow over init heap size

Last post by Florian_Marquardt « 13 Mar 2025, 14:08
Replies: 4
by Florian_Marquardt » 12 Mar 2025, 12:56

4 Replies

14055 Views

Last post by Florian_Marquardt
13 Mar 2025, 14:08
Cannot close an application launched with OpenWebStart

Last post by Janak Mulani « 09 Mar 2025, 18:57
Replies: 3
by filippoAdb » 28 Feb 2025, 08:38

3 Replies

11458 Views

Last post by Janak Mulani
09 Mar 2025, 18:57
Start from Terminal in Debian

Last post by Janak Mulani « 30 Jan 2025, 07:28
Replies: 3
by Birnbaum » 06 Jan 2025, 11:44

3 Replies

19947 Views

Last post by Janak Mulani
30 Jan 2025, 07:28
Java -Djava.locale.providers parameter not taken into account

Last post by nicogino « 29 Jan 2025, 17:19
Replies: 2
by nicogino » 28 Jan 2025, 11:51

2 Replies

16196 Views

Last post by nicogino
29 Jan 2025, 17:19
Installer Mime Type Missing Win11

Last post by david.amato « 16 Jan 2025, 10:52
Replies: 6
by david.amato » 15 Oct 2024, 16:08

6 Replies

27916 Views

Last post by david.amato
16 Jan 2025, 10:52
Association Entries Seem to be Ignored

Last post by userspaced « 14 Jan 2025, 13:35
Replies: 6
by userspaced » 08 Jan 2025, 16:35

6 Replies

26948 Views

Last post by userspaced
14 Jan 2025, 13:35
2 classloaders trying to load the same class, How to fix this

Last post by ravishmg « 13 Jan 2025, 17:00

by ravishmg » 13 Jan 2025, 17:00

0 Replies

14318 Views

Last post by ravishmg
13 Jan 2025, 17:00
jnlp application not able to load modules

Last post by ravishmg « 13 Jan 2025, 16:31

by ravishmg » 13 Jan 2025, 16:31

0 Replies

14383 Views

Last post by ravishmg
13 Jan 2025, 16:31
Softwaredeployment and then integrate a JVM

Last post by Janak Mulani « 08 Jan 2025, 09:53
Replies: 1
by s.schorr » 08 Jan 2025, 08:48

1 Replies

16193 Views

Last post by Janak Mulani
08 Jan 2025, 09:53
Enable Autoupdate of OWS

Last post by Janak Mulani « 06 Jan 2025, 07:07
Replies: 1
by CBA@loyensloeff.com » 02 Jan 2025, 14:44

1 Replies

15366 Views

Last post by Janak Mulani
06 Jan 2025, 07:07
access denied "java.lang.RuntimePermission" getenv

Last post by danmoser « 31 Dec 2024, 00:18
Replies: 6
by danmoser » 23 Dec 2024, 19:32

6 Replies

27928 Views

Last post by danmoser
31 Dec 2024, 00:18
everything working even with expired code signing cert

Last post by danmoser « 11 Dec 2024, 20:20
Replies: 3
by gkatz » 19 Mar 2024, 09:54

3 Replies

41010 Views

Last post by danmoser
11 Dec 2024, 20:20
OpenWebstart Uninstall String

Last post by ChrisSolis93 « 12 Nov 2024, 17:52

by ChrisSolis93 » 12 Nov 2024, 17:52

0 Replies

16821 Views

Last post by ChrisSolis93
12 Nov 2024, 17:52
Exiting Boot.mainWithReturnCode() with 0?

Last post by retostauss « 08 Nov 2024, 13:30
Replies: 2
by retostauss » 07 Nov 2024, 16:56

2 Replies

18808 Views

Last post by retostauss
08 Nov 2024, 13:30
TSA check

Last post by Janak Mulani « 30 Oct 2024, 13:17
Replies: 5
by robertkrikke » 17 Oct 2024, 02:34

5 Replies

24983 Views

Last post by Janak Mulani
30 Oct 2024, 13:17
Disable Apps Creating Desktop Icons

Last post by Janak Mulani « 14 Oct 2024, 17:03
Replies: 1
by PWn3R » 26 Sep 2024, 19:19

1 Replies

16787 Views

Last post by Janak Mulani
14 Oct 2024, 17:03
IBM Semeru does not exist in the OpenWebStart vendor list

Last post by Janak Mulani « 14 Oct 2024, 16:59
Replies: 1
by Stephanus » 11 Oct 2024, 09:51

1 Replies

16389 Views

Last post by Janak Mulani
14 Oct 2024, 16:59
java.lang.NoClassDefFoundError: Could not initialize class

Last post by Andreas Ehret « 09 Oct 2024, 08:34
Replies: 1
by andalissa.corbin » 08 Oct 2024, 22:40

1 Replies

16028 Views

Last post by Andreas Ehret
09 Oct 2024, 08:34
OWS deploy can't read System property

Last post by Janak Mulani « 06 Sep 2024, 13:53
Replies: 1
by Stefan » 05 Sep 2024, 13:50

1 Replies

17115 Views

Last post by Janak Mulani
06 Sep 2024, 13:53
OWS + Eclips 1.8.0_422 Trying to replace Oracle, jnlp fails to launch with class error

Last post by Janak Mulani « 05 Sep 2024, 10:03
Replies: 5
by GuyWithQuetions » 22 Aug 2024, 19:05

5 Replies

28061 Views

Last post by Janak Mulani
05 Sep 2024, 10:03
Opening OpenWebStart error

Last post by Janak Mulani « 09 Aug 2024, 14:22
Replies: 1
by dtehoke » 08 Aug 2024, 14:11

1 Replies

21808 Views

Last post by Janak Mulani
09 Aug 2024, 14:22
[SOLVED] JViewer applet not working

Last post by chandler-agi « 18 Jul 2024, 20:40
Replies: 5
by groo1984 » 10 Nov 2020, 20:17

5 Replies

43743 Views

Last post by chandler-agi
18 Jul 2024, 20:40
openwebstart - unable to load the jnlp

Last post by Janak Mulani « 02 Jul 2024, 17:30
Replies: 2
by cormanstnl » 02 Jul 2024, 09:57

2 Replies

29028 Views

Last post by Janak Mulani
02 Jul 2024, 17:30
JNLP application not openning when using signed Jars

Last post by Janak Mulani « 01 Jul 2024, 20:06
Replies: 3
by henriquert » 26 Jun 2024, 15:59

3 Replies

25392 Views

Last post by Janak Mulani
01 Jul 2024, 20:06
OpenWebStart not starting up

Last post by Janak Mulani « 01 Jul 2024, 19:56
Replies: 3
by Ronald Jansen » 25 Jun 2024, 10:39

3 Replies

27582 Views

Last post by Janak Mulani
01 Jul 2024, 19:56
Preconfigure deployment.properties - cache folder default settings in Windows

Last post by saxe « 27 Jun 2024, 12:14

by saxe » 27 Jun 2024, 12:14

0 Replies

27786 Views

Last post by saxe
27 Jun 2024, 12:14
Configuration: enable Java auto update but disable OWS auto update

Last post by saxe « 27 Jun 2024, 12:01
Replies: 3
by saxe » 31 May 2024, 08:21

3 Replies

25820 Views

Last post by saxe
27 Jun 2024, 12:01
Increased resources(CPU/Memory) usage over time and application crashes

Last post by rajeshrajan « 11 Jun 2024, 12:45
Replies: 4
by rajeshrajan » 07 Jun 2024, 16:36

4 Replies

29595 Views

Last post by rajeshrajan
11 Jun 2024, 12:45
properties defined in jnlp are not passed to java application

Last post by Janak Mulani « 03 Jun 2024, 12:22
Replies: 7
by wenzel » 30 May 2024, 11:26

7 Replies

39220 Views

Last post by Janak Mulani
03 Jun 2024, 12:22
Automatically change the version of OpenJDK to use

Last post by chanteclair « 31 May 2024, 13:25
Replies: 4
by chanteclair » 31 May 2024, 08:48

4 Replies

28902 Views

Last post by chanteclair
31 May 2024, 13:25
Code Signature Invalid or Missing in macOS OpenWebStart javaws.app

Last post by Janak Mulani « 31 May 2024, 08:08
Replies: 9
by jon » 23 Apr 2024, 19:20

9 Replies

63997 Views

Last post by Janak Mulani
31 May 2024, 08:08
Openwebstart 1.9.1 ignores configured JDK

Last post by Janak Mulani « 26 Apr 2024, 10:50
Replies: 6
by beremour » 16 Apr 2024, 11:43

6 Replies

67622 Views

Last post by Janak Mulani
26 Apr 2024, 10:50
Fatal Read Error: Could not read or parse the JNLP file at

Last post by Janak Mulani « 12 Apr 2024, 10:18
Replies: 2
by JohannT » 12 Apr 2024, 08:53

2 Replies

35390 Views

Last post by Janak Mulani
12 Apr 2024, 10:18

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