Registering custom MIME resolver extending org.openide.filesystems.MIMEResolver throws fatal error: FileUtil.getMIMEType(String extension) is deprecated.

[bnyney2k]

Apache NetBeans version

Apache NetBeans 24

What happened

I am building a netbeans module for my PHP project and require that it resolves *.php files as "text/x-php" instead of current "text/x-php5" MIME type.

I have created a class:

package Classes.MIMEResolvers;

import org.openide.filesystems.FileObject;
import org.openide.filesystems.MIMEResolver;

/**
 *
 * @author User
 */
@MIMEResolver.Registration(
    displayName = "PHP Files",
    position = 100,
    resource = "/main/resources/mime/MIME-PHP.resolver.xml"
)

public class PHPFileResolver extends MIMEResolver {
    
    public PHPFileResolver(){
        super("text/x-php5");
    }
    
    
    @Override
    public String findMIMEType(FileObject fo) {
        // Use FileObject's own attributes or metadata for MIME type resolution
        String ext = fo.getExt();
        System.out.println("RESOLVING MIME FOR: " + fo.getNameExt());
        
        if (ext != null && "php".equalsIgnoreCase(ext)) {
            return "text/x-php";
        }
        return null; // Delegate to other resolvers if not recognized
    }
    
}

However, when I run the nbm package to launch the custom netbeans module, I get the following log, and the PHP projects fail to open:

java.lang.AssertionError: FileUtil.getMIMEType(String extension) is deprecated. Please, use FileUtil.getMIMEType(FileObject).
	at org.openide.filesystems.FileUtil.getMIMEType(FileUtil.java:1374)
	at org.netbeans.modules.openide.filesystems.declmime.FileElement$Type.getMIMEType(FileElement.java:503)
	at org.netbeans.modules.openide.filesystems.declmime.FileElement$Type.accept(FileElement.java:531)
	at org.netbeans.modules.openide.filesystems.declmime.FileElement$Type.access$300(FileElement.java:133)
	at org.netbeans.modules.openide.filesystems.declmime.FileElement.resolve(FileElement.java:76)
	at org.netbeans.modules.openide.filesystems.declmime.MIMEResolverImpl$Impl.findMIMEType(MIMEResolverImpl.java:426)
	at org.openide.filesystems.MIMESupport$CachedFileObject.resolveMIME(MIMESupport.java:346)
	at org.openide.filesystems.MIMESupport$CachedFileObject.getMIMEType(MIMESupport.java:287)
	at org.openide.filesystems.MIMESupport.findMIMEType(MIMESupport.java:111)
	at org.openide.filesystems.FileUtil.getMIMEType(FileUtil.java:1388)
	at org.openide.filesystems.FileObject.getMIMEType(FileObject.java:642)
	at org.openide.filesystems.AbstractFileObject.getMIMEType(AbstractFileObject.java:169)
	at org.netbeans.modules.parsing.api.Source.create(Source.java:120)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.indexEmbedding(RepositoryUpdater.java:3134)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doIndex(RepositoryUpdater.java:2861)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.lambda$index$0(RepositoryUpdater.java:2626)
	at org.netbeans.modules.parsing.impl.indexing.errors.TaskCache.refreshTransaction(TaskCache.java:540)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.index(RepositoryUpdater.java:2625)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.lambda$scanSource$3(RepositoryUpdater.java:5735)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.lambda$runInContext$4(RepositoryUpdater.java:2119)
	at org.openide.util.lookup.Lookups.executeWith(Lookups.java:288)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2117)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2098)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.access$1400(RepositoryUpdater.java:135)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSource(RepositoryUpdater.java:5770)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSources(RepositoryUpdater.java:5443)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RootsWork.getDone(RepositoryUpdater.java:5075)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$InitialRootsWork.getDone(RepositoryUpdater.java:5842)
[catch] at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:3452)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:6197)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.access$3400(RepositoryUpdater.java:5855)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.lambda$call$0(RepositoryUpdater.java:6116)
	at org.openide.util.lookup.Lookups.executeWith(Lookups.java:288)
	at org.netbeans.modules.parsing.impl.RunWhenScanFinishedSupport.performScan(RunWhenScanFinishedSupport.java:83)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:6116)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:6112)
	at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
	at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
	at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
	at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:6112)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1403)
	at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
	at org.openide.util.lookup.Lookups.executeWith(Lookups.java:287)
	at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2018)

Language / Project Type / NetBeans Component

NetBeans Module Project

How to reproduce

1. Create class as specified in problem description.
2. Right-click and run project
3. Create or open PHP project.

Project should fail to open and error should be thrown in Project output.

Did this work correctly in an earlier version?

No / Don't know

Operating System

Windows 11

JDK

JDK 23

Apache NetBeans packaging

Apache NetBeans provided installer

Anything else

No response

Are you willing to submit a pull request?

No