Java 24 has the security manager permanently disabled. Netbeans 25 has adapted it's default setting accordingly, so it can deal with this change in java without issue. For netbeans 24+java 24 you need to change a setting in the netbeans configuration. For java 24 development I would stick to netbeans 25.
met vriendelijke groet Pieter van den Hombergh Op ma 24 mrt 2025, 06:45 schreef slipbits <slipb...@slipbits.com>: > Win10 > > I just built a new computer and installed NB 25 and then NB 24. The > installation files were downloaded from Netbeans.org. > > I attempted to start NB with the desktop Icon and then by direct execution > of netbeans.exe and netbeans64.exe. This is the only time this has > happened. it has worked on all my other computers through the years. Is > there some hardware issue involved? My chip is an AMD 7950X and my system > is on a 4TB M.2 2280 SSD. > > The following error messages were seen when I attempted to start NB from a > cygwin shell. I do notice some missing libraries. I assume that the > security error is the one causing the failure ( and I thought that this was > deprecated?). > > > ./NetBeans-24/netbeans/bin/netbeans.exe > WARNING: package com.apple.eio not in java.desktop > WARNING: package com.apple.laf not in java.desktop > WARNING: package sun.awt.X11 not in java.desktop > WARNING: package com.sun.java.swing.plaf.gtk not in java.desktop > Error occurred during initialization of VM > java.lang.Error: A command line option has attempted to allow or enable > the Security Manager. Enabling a Security Manager is not supported. > at java.lang.System.initPhase3(java.base@24/System.java:1947) > > > ./NetBeans-24/netbeans/bin/netbeans64.exe > WARNING: package com.apple.eio not in java.desktop > WARNING: package com.apple.laf not in java.desktop > WARNING: package sun.awt.X11 not in java.desktop > WARNING: package com.sun.java.swing.plaf.gtk not in java.desktop > Error occurred during initialization of VM > java.lang.Error: A command line option has attempted to allow or enable > the Security Manager. Enabling a Security Manager is not supported. > at java.lang.System.initPhase3(java.base@24/System.java:1947) > >
