zoranSpare opened a new issue, #6030:
URL: https://github.com/apache/netbeans/issues/6030
### Apache NetBeans version
Apache NetBeans 18
### What happened
When I try and start the Netbeans App on many occasions the startup will
fail. I will have to retry a number of times before it starts.
When I try starting from the commandline I get the following error:
```
java.lang.NullPointerException
at
java.base/java.net.URLConnection$1.getContentTypeFor(URLConnection.java:313)
at
java.base/java.net.URLConnection.guessContentTypeFromName(URLConnection.java:1464)
at
java.base/sun.net.www.protocol.jar.JarURLConnection.getContentType(JarURLConnection.java:223)
at
java.base/java.net.URLConnection.getContentHandler(URLConnection.java:1277)
at java.base/java.net.URLConnection.getContent(URLConnection.java:778)
at java.base/java.net.URL.getContent(URL.java:1150)
at
org.openide.util.lookup.MetaInfServicesLookup.search(MetaInfServicesLookup.java:293)
at
org.openide.util.lookup.MetaInfServicesLookup.beforeLookup(MetaInfServicesLookup.java:132)
at
org.openide.util.lookup.MetaInfServicesLookup.beforeLookupResult(MetaInfServicesLookup.java:111)
at
org.openide.util.lookup.AbstractLookup.lookup(AbstractLookup.java:458)
at
org.openide.util.lookup.ProxyLookup$R.initResults(ProxyLookup.java:448)
at
org.openide.util.lookup.ProxyLookup$R.myBeforeLookup(ProxyLookup.java:735)
at
org.openide.util.lookup.ProxyLookup$R.computeResult(ProxyLookup.java:611)
at org.openide.util.lookup.ProxyLookup$R.allItems(ProxyLookup.java:595)
at org.openide.util.lookup.ProxyLookup$R.collImpl(ProxyLookup.java:698)
at
org.openide.util.lookup.ProxyLookup$R.collectFires(ProxyLookup.java:644)
at org.openide.util.lookup.ProxyLookup.setLookups(ProxyLookup.java:227)
at org.openide.util.lookup.ProxyLookup.setLookups(ProxyLookup.java:183)
at
org.netbeans.core.startup.MainLookup.changeLookups(MainLookup.java:193)
at
org.netbeans.core.startup.MainLookup.doInitializeLookup(MainLookup.java:183)
at
org.netbeans.core.startup.MainLookup.modulesClassPathInitialized(MainLookup.java:134)
at
org.netbeans.core.startup.MainLookup.modulesClassPathInitialized(MainLookup.java:127)
at org.netbeans.core.startup.NbInstaller.loadImpl(NbInstaller.java:360)
at org.netbeans.core.startup.NbInstaller.access$000(NbInstaller.java:77)
at org.netbeans.core.startup.NbInstaller$1.run(NbInstaller.java:322)
at org.openide.filesystems.FileUtil$2.run(FileUtil.java:420)
at
org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:102)
at
org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:494)
at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:404)
at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:424)
at org.netbeans.core.startup.NbInstaller.load(NbInstaller.java:319)
at org.netbeans.ModuleManager.doEnable(ModuleManager.java:1488)
at org.netbeans.ModuleManager.enable(ModuleManager.java:1331)
at org.netbeans.ModuleManager.enable(ModuleManager.java:1256)
at org.netbeans.core.startup.ModuleList.installNew(ModuleList.java:316)
at org.netbeans.core.startup.ModuleList.trigger(ModuleList.java:252)
at org.netbeans.core.startup.ModuleSystem.restore(ModuleSystem.java:298)
at org.netbeans.core.startup.Main.getModuleSystem(Main.java:173)
at org.netbeans.core.startup.Main.getModuleSystem(Main.java:142)
at org.netbeans.core.startup.Main.start(Main.java:303)
at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:98)
at java.base/java.lang.Thread.run(Thread.java:834)
```
My environment is :
MacOS 13.4 Venture
Java_Home : /Library/Java/JavaVirtualMachines/jdk-11.0.2.jdk/Contents/Home
### How to reproduce
This will happen regularly throughout the day. I would say 2 out of 3 starts
fails.
### Did this work correctly in an earlier version?
Apache NetBeans 14
### Operating System
MacOS 13.4 Ventura
### JDK
/Library/Java/JavaVirtualMachines/jdk-11.0.2.jdk/Contents/Home
### Apache NetBeans packaging
Apache NetBeans provided installer
### Anything else
Regularly.
### Are you willing to submit a pull request?
Yes
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