Ah, that's frustrating; I've not encountered this particular error, so unsure in which direction to look to resolve this. I find Gradle support in NetBeans has been rather fragile, although generally better in NB15, and I'm hoping the NB16 issues are resolved quickly. I spent far too long with previous versions having NB as essentially a simple text editor for Gradle projects, with none of the IDE features working.

It may be worth submitting a new Github issue for this, as it's possible the same problem would/will show up in NB16u1. If it turns out to be a small/simple issue, then better to have a chance it could be addressed in that update instead of it rolling over in NB17.

Stan

On 02/12/2022 12:46, Thomas Kellerer wrote:
Unfortunately NetBeans 15 also refused to open those projects failing with the 
same NPE:

ava.lang.NullPointerException
        at 
org.netbeans.modules.gradle.api.GradleBaseProjectBuilder.processBasicInfo(GradleBaseProjectBuilder.java:107)
        at 
org.netbeans.modules.gradle.api.GradleBaseProjectBuilder.build(GradleBaseProjectBuilder.java:84)
        at 
org.netbeans.modules.gradle.api.GradleBaseProjectBuilder$Extractor.extract(GradleBaseProjectBuilder.java:406)
        at 
org.netbeans.modules.gradle.loaders.AbstractProjectLoader.createGradleProject(AbstractProjectLoader.java:107)
        at 
org.netbeans.modules.gradle.loaders.DiskCacheProjectLoader.load(DiskCacheProjectLoader.java:44)
        at 
org.netbeans.modules.gradle.loaders.GradleProjectLoaderImpl.loadProject(GradleProjectLoaderImpl.java:88)
        at 
org.netbeans.modules.gradle.NbGradleProjectImpl.loadOwnProject0(NbGradleProjectImpl.java:470)
        at 
org.netbeans.modules.gradle.NbGradleProjectImpl.projectWithQuality(NbGradleProjectImpl.java:279)
        at 
org.netbeans.modules.gradle.NbGradleProjectImpl.getGradleProject(NbGradleProjectImpl.java:195)
        at 
org.netbeans.modules.gradle.NbGradleProjectFactory.loadProject(NbGradleProjectFactory.java:94)
        at 
org.netbeans.modules.projectapi.nb.NbProjectManager.createProject(NbProjectManager.java:376)
        at 
org.netbeans.modules.projectapi.nb.NbProjectManager.access$300(NbProjectManager.java:69)
        at 
org.netbeans.modules.projectapi.nb.NbProjectManager$2.run(NbProjectManager.java:289)
        at 
org.netbeans.modules.projectapi.nb.NbProjectManager$2.run(NbProjectManager.java:218)
        at 
org.netbeans.modules.openide.util.DefaultMutexImplementation.readAccess(DefaultMutexImplementation.java:188)
        at org.openide.util.Mutex.readAccess(Mutex.java:231)
        at 
org.netbeans.modules.projectapi.nb.NbProjectManager.findProject(NbProjectManager.java:218)
        at 
org.netbeans.api.project.ProjectManager.findProject(ProjectManager.java:142)
        at 
org.netbeans.modules.gradle.queries.ProjectContainerProviderImpl.getSubprojects(ProjectContainerProviderImpl.java:75)
        at 
org.netbeans.modules.gradle.queries.ProjectContainerProviderImpl.getContainedProjects(ProjectContainerProviderImpl.java:55)
        at 
org.netbeans.api.project.ProjectUtils.getContainedProjects(ProjectUtils.java:189)
        at 
org.netbeans.modules.gradle.nodes.SubProjectsNode$SubProjectsChildFactory.createKeys(SubProjectsNode.java:142)
        at org.openide.nodes.AsynchChildren.run(AsynchChildren.java:202)
        at 
org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
        at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
        at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
[catch] at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)

Loading of the root project works, but expanding the "Sub Projects" node leads 
to the above NPE.

Thomas


Giles Winstanley schrieb am 02.12.2022 um 12:36:
Hi Thomas,

This is a known issue that is already being worked on by the Gradle module 
developers:
     https://github.com/apache/netbeans/pull/5022

Unfortunately it didn't make it into the upcoming v16 release, but from what I 
understand there is likely to be an update release which should resolve this. 
I'm also affected by this issue as I use Gradle extensively, so for now I'm 
continuing to use Netbeans 15, Gradle 7.5.1, and JDK 18, which all work 
together nicely (as they should also with JDK 11).

Stan

On 02/12/2022 07:10, Thomas Kellerer wrote:
Hello,

our project switch from Gradle 6.9.x to 7.5.1 and now it doesn't work with NetBeans 16 
any more (the most recent "voting candidate")
Everything was working fine with Gradle 6.9.x even with the various NetBeans 16 
RC versions

In case this is important: the gradle plugin versions are reported as:

     org.netbeans.modules.libs.gradle/7 [7.6 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle/2 [2.29 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle.java [1.20.0.1 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle.test [1.14 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle.spring [1.14 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle.persistence [1.14 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle.editor [1.0 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle.dists [1.6 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle.java.coverage [1.11 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle.kit [1.14 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle.javaee [1.13 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle.htmlui [1.13 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]
     org.netbeans.modules.gradle.groovy [1.7 
16-321935444b183aea1c4ff255d8d2ab8d50c60606]

Whenever I open the project, NetBeans shows the project is unloadable with this 
message

     Reason: java.io.NotSerializableException: [extensions.propertyValues]


The log file only shows:

     Failed to retrieve project information for: C:\Projects\*******\server
     Reason: java.io.NotSerializableException: [extensions.propertyValues]

NetBeans is running with Java 11 and the project is using Java 11 as well.

I tried different settings for the Gradle integration.

* "Use Standard Gradle Version" then select 7.5.1 in the drop down.
* Specify an externally installed Gradle
* Enabled/Disabled the "Prefer to use Gradle Wrapper that comes with the 
project"

I also tried with a completely empty

nothing helped.

The build.gradle looks like this (I have removed references to internal 
projects or libraries as we are under a NDA here)

      import com.bmuschko.gradle.docker.tasks.image.*

      plugins {
        id "java"
        id "org.springframework.boot" version "${springBootVersion}"
        id "io.spring.dependency-management" version 
"${dependencyManagementVersion}"
        id 'com.adarshr.test-logger' version "${testLoggerPluginVersion}"
      }

      dependencies {

        implementation 
"org.springframework.boot:spring-boot-starter-web:${springBootVersion}"
        annotationProcessor 
"org.springframework.boot:spring-boot-configuration-processor:${springBootVersion}"

        // reference to an internal library
        implementation platform(".....")

        // about 30 dependencies on internal libraries
        implementation("....")
        .....


        implementation ("org.jsoup:jsoup:${jsoupVersion}")

        implementation project(":project-module-one")
        implementation project(":commons:project-module-two")
        implementation project(":commons:project-module-three")
        implementation project(":commons:project-module-four")

        implementation "com.sun.xml.ws:jaxws-rt:2.3.1"
        implementation "javax.xml.ws:jaxws-api:2.3.1"
        implementation "javax.jws:javax.jws-api:1.1"
        implementation "javax.xml.bind:jaxb-api:2.3.1"
        implementation "xml-apis:xml-apis:1.4.01"
        implementation "com.sun.xml.messaging.saaj:saaj-impl:1.5.3"
        implementation "org.glassfish.jaxb:jaxb-runtime:2.3.4"
        implementation 
"org.springframework.boot:spring-boot-starter-cache:${springBootVersion}"
        implementation 'com.github.ben-manes.caffeine:caffeine:3.0.2'
        implementation 
"org.springframework.ws:spring-ws-core:${springVersionWS}"
        implementation 
"org.springframework.ws:spring-ws-support:${springVersionWS}"
        implementation 
"org.springframework.ws:spring-ws-security:${springVersionWS}"

        implementation 
"com.fasterxml.jackson.core:jackson-core:${jacksonVersion}"
        implementation 
"com.fasterxml.jackson.core:jackson-databind:${jacksonVersion}"
        implementation 
"com.fasterxml.jackson.core:jackson-annotations:${jacksonVersion}"
        implementation 
"com.fasterxml.jackson.dataformat:jackson-dataformat-xml:${jacksonVersion}"

        implementation "com.auth0:java-jwt:${auth0JwtVersion}"


        testImplementation 
"org.springframework.boot:spring-boot-starter-test:${springBootVersion}"
        
testImplementation("org.junit.jupiter:junit-jupiter-api:${junitVersion}")
        
testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:${junitVersion}")
      }

      test {
        useJUnitPlatform()
      }

      springBoot {
        mainClass = "com.MainClass"
      }
      configurations {
          all*.exclude group: 'xml-apis'
      }
      tasks.register("start") {
        dependsOn bootRun
      }

      artifacts {
        archives bootJar
      }

      publishing {
        publications {
          serverBootJar(MavenPublication) {
            groupId = rootProject.group
            artifactId = "server"
            version = rootProject.version

            artifact bootJar
          }
        }
      }

      // Docker builds
      String serverName = "server"
      String serverTagShort = calculateShortTag(serverName)
      String serverTagFull = calculateFullTag(serverName)

      tasks.register("buildImages", DockerBuildImage) {
        group = "docker"
        dependsOn bootJar

        images.add(serverTagShort)
        images.add(serverTagFull)
        inputDir.set(file("."))
        dockerFile.set(file("Dockerfile"))
        dockerRegistryCredentialsForRead
      }

      tasks.register("pushImages", DockerPushImage) {
        group = "docker"
        dependsOn buildImages

        images.add(serverTagFull)
      }

      tasks.register("removeTagShort", DockerRemoveImage) {
        group = "docker"
        targetImageId serverTagShort
        force = true
        onError { exception -> println("Could not find image") }
      }

      tasks.register("removeTagFull", DockerRemoveImage) {
        group = "docker"
        targetImageId serverTagFull
        force = true
        onError { exception -> println("Could not find image") }
      }

      tasks.register("cleanImages") {
        group = "docker"
        dependsOn removeTagShort
        dependsOn removeTagFull
      }

      publish.dependsOn assemble


Any ideas?
Thomas


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