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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: 53

53 Topics

202 Posts

Last post Re: How Open Webstart support…
by Janak Mulani View the latest post
31 Jan 2025, 13:20
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: 9

9 Topics

31 Posts

Last post Re: Oracle forms crashing aft…
by Janak Mulani View the latest post
16 Oct 2024, 16:20

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Topics

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Last post

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

143 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

420 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

8822 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

5726 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

15007 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

13672 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

4589 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

4568 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

6012 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

5475 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

14229 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

29054 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

6628 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

8143 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

12735 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

6700 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

6548 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

6317 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

7069 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

15058 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

11756 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

29763 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

14903 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

14476 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

15056 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

17252 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

14877 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

17623 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

25314 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

17144 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

47724 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

54886 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

24294 Views

Last post by Janak Mulani
12 Apr 2024, 10:18
macOS file path to the response.varfile

Last post by Janak Mulani « 08 Apr 2024, 20:38
Replies: 1
by bdarnell » 05 Apr 2024, 23:09

1 Replies

18930 Views

Last post by Janak Mulani
08 Apr 2024, 20:38
Desktop Integration Shortcut Handling

Last post by bdarnell « 05 Apr 2024, 23:00
Replies: 2
by lericksen@golden1.com » 31 Aug 2022, 18:24

2 Replies

25547 Views

Last post by bdarnell
05 Apr 2024, 23:00
Unknown Main-Class error

Last post by Janak Mulani « 04 Apr 2024, 14:49
Replies: 1
by Tim-GDL » 03 Apr 2024, 12:33

1 Replies

18806 Views

Last post by Janak Mulani
04 Apr 2024, 14:49
JAX-WS and openJDK 11

Last post by Janak Mulani « 19 Mar 2024, 12:01
Replies: 1
by plamas » 18 Mar 2024, 14:35

1 Replies

21732 Views

Last post by Janak Mulani
19 Mar 2024, 12:01
deployment.jvm.arguments.whitelist

Last post by Janak Mulani « 11 Mar 2024, 13:48
Replies: 1
by wolf » 11 Mar 2024, 11:02

1 Replies

21259 Views

Last post by Janak Mulani
11 Mar 2024, 13:48
using OWS without signed jars?

Last post by Janak Mulani « 11 Mar 2024, 06:30
Replies: 1
by gkatz » 07 Mar 2024, 17:31

1 Replies

21576 Views

Last post by Janak Mulani
11 Mar 2024, 06:30
OWS + Jdk17 - Denying permission

Last post by Janak Mulani « 29 Jan 2024, 06:49
Replies: 5
by oslodev » 14 Jun 2023, 15:10

5 Replies

35240 Views

Last post by Janak Mulani
29 Jan 2024, 06:49
Unable to run JNPL file after installation

Last post by Janak Mulani « 23 Jan 2024, 08:02
Replies: 1
by kokwei » 01 Sep 2022, 11:57

1 Replies

38221 Views

Last post by Janak Mulani
23 Jan 2024, 08:02
Unable to run JNLP file with OWS 1.9.0

Last post by Janak Mulani « 18 Dec 2023, 11:07
Replies: 8
by JaLe » 08 Dec 2023, 13:09

8 Replies

44368 Views

Last post by Janak Mulani
18 Dec 2023, 11:07
Jars are downloaded several times during application running (and it fails)

Last post by bfolleas « 14 Dec 2023, 18:00
Replies: 15
by bfolleas » 05 Apr 2023, 08:37

15 Replies

84183 Views

Last post by bfolleas
14 Dec 2023, 18:00
JNLP IBM IMM and Java 21

Last post by Janak Mulani « 13 Dec 2023, 05:52
Replies: 1
by beremour » 12 Dec 2023, 14:19

1 Replies

23918 Views

Last post by Janak Mulani
13 Dec 2023, 05:52
openwebstart not reading certificates from CAC reader

Last post by Janak Mulani « 13 Dec 2023, 04:38
Replies: 3
by channareddy » 11 Dec 2023, 19:07

3 Replies

28441 Views

Last post by Janak Mulani
13 Dec 2023, 04:38
App not starting with Java21 - JarIndex not found

Last post by bfolleas « 08 Dec 2023, 13:58
Replies: 11
by mredeker » 19 Oct 2023, 15:57

11 Replies

60618 Views

Last post by bfolleas
08 Dec 2023, 13:58
Digital Signature Warning Even With Settings

Last post by Janak Mulani « 07 Dec 2023, 07:51
Replies: 3
by PWn3R » 06 Dec 2023, 20:48

3 Replies

29203 Views

Last post by Janak Mulani
07 Dec 2023, 07:51
OpenWebstart on Mac OSX and Temurin17; --add-exports Problem

Last post by mredeker « 05 Dec 2023, 08:53
Replies: 10
by mredeker » 01 Aug 2023, 10:38

10 Replies

52741 Views

Last post by mredeker
05 Dec 2023, 08:53
Memory consumption in log mechanism

Last post by Janak Mulani « 23 Nov 2023, 08:08
Replies: 2
by gkatz » 22 Nov 2023, 15:20

2 Replies

27109 Views

Last post by Janak Mulani
23 Nov 2023, 08:08
The version of the JVM must be 1.8?

Last post by Andreas Ehret « 27 Oct 2023, 14:14
Replies: 4
by cliviu » 25 Oct 2023, 10:08

4 Replies

30070 Views

Last post by Andreas Ehret
27 Oct 2023, 14:14

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