NullPointerException at getPluginDescriptor

[victorwss]

Hi, I'm using Gradle 5.2.1 and Java 11 in Windows 10.

I'd tried to run the following build.gradle file, which also tells what exactly other dependencies I'm using:

plugins {
    id "com.github.spotbugs" version "1.6.11"
    id "java-library"
}

ext.versionFbContrib = "7.4.3.sb"
ext.versionFindBugsSlf4j = "1.4.2"
ext.versionFindSecBugs = "1.8.0"
ext.versionJcip = "1.0"
ext.versionSlf4j = "1.8.0-beta4"
ext.versionSpotBugs = "3.1.12"

dependencies {
    compile group: 'org.slf4j', name: 'slf4j-api', version: versionSlf4j
    spotbugs configurations.spotbugsPlugins.dependencies
    api group: 'net.jcip', name: 'jcip-annotations', version: versionJcip
    api group: 'com.github.spotbugs', name: 'spotbugs-annotations', version: versionSpotBugs
    spotbugsPlugins group: 'com.h3xstream.findsecbugs', name: 'findsecbugs-plugin', version: versionFindSecBugs
    spotbugsPlugins group: 'com.mebigfatguy.fb-contrib', name: 'fb-contrib', version: versionFbContrib
    spotbugsPlugins group: 'jp.skypencil.findbugs.slf4j', name: 'bug-pattern', version: versionFindBugsSlf4j
}

println "Using Java " + org.gradle.api.JavaVersion.current() + "."

repositories {
    mavenLocal()
    jcenter()
    mavenCentral()
}

spotbugs {
    toolVersion = versionSpotBugs
    effort = "max"
    reportLevel = "low"
}

tasks.withType(com.github.spotbugs.SpotBugsTask) {
    pluginClasspath = project.configurations.spotbugsPlugins
    reports {
        xml.enabled = false
        html.enabled = true
    }
}

spotbugsTest.enabled = false

Further, I have a HelloWorld.java in the src\main\java\com\example folder. This is its contents:

package com.example;

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello World");
    }
}

Running it with gradle clean build --stacktrace produces this output:

> Configure project :
Using Java 11.

> Task :spotbugsMain
SLF4J: No SLF4J providers were found.
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#noProviders for further details.

> Task :spotbugsMain FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':spotbugsMain'.
> java.lang.NullPointerException (no error message)

* Try:
Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':spotbugsMain'.
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$2.accept(ExecuteActionsTaskExecuter.java:121)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$2.accept(ExecuteActionsTaskExecuter.java:117)
        at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:184)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:110)
        at org.gradle.api.internal.tasks.execution.ResolveIncrementalChangesTaskExecuter.execute(ResolveIncrementalChangesTaskExecuter.java:84)
        at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:91)
        at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionStateTaskExecuter.execute(ResolveBeforeExecutionStateTaskExecuter.java:74)
        at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
        at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:109)
        at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter.execute(ResolveBeforeExecutionOutputsTaskExecuter.java:67)
        at org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter.execute(ResolveAfterPreviousExecutionStateTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:93)
        at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:45)
        at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:94)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
        at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:63)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:49)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:46)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
        at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:46)
        at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:43)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:355)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:343)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:336)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:322)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:134)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:129)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:202)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:193)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:129)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
        at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
        at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
Caused by: java.lang.NullPointerException
        at edu.umd.cs.findbugs.PluginLoader.getPluginDescriptor(PluginLoader.java:1182)
        at edu.umd.cs.findbugs.PluginLoader.init(PluginLoader.java:711)
        at edu.umd.cs.findbugs.PluginLoader.<init>(PluginLoader.java:207)
        at edu.umd.cs.findbugs.PluginLoader.getPluginLoader(PluginLoader.java:1366)
        at edu.umd.cs.findbugs.Plugin.addCustomPlugin(Plugin.java:667)
        at edu.umd.cs.findbugs.Plugin.addCustomPlugin(Plugin.java:659)
        at edu.umd.cs.findbugs.Plugin.loadCustomPlugin(Plugin.java:651)
        at edu.umd.cs.findbugs.Plugin.loadCustomPlugin(Plugin.java:644)
        at edu.umd.cs.findbugs.FindBugsCommandLine.handleOptionWithArgument(FindBugsCommandLine.java:148)
        at edu.umd.cs.findbugs.TextUICommandLine.handleOptionWithArgument(TextUICommandLine.java:560)
        at edu.umd.cs.findbugs.config.CommandLine.parse(CommandLine.java:335)
        at edu.umd.cs.findbugs.config.CommandLine.parse(CommandLine.java:299)
        at edu.umd.cs.findbugs.FindBugs.processCommandLine(FindBugs.java:351)
        at com.github.spotbugs.internal.spotbugs.SpotBugsExecutor.runSpotbugs(SpotBugsExecutor.java:22)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at org.gradle.process.internal.worker.request.WorkerAction.run(WorkerAction.java:111)
        at org.gradle.process.internal.worker.request.WorkerAction.runThenStop(WorkerAction.java:94)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
        at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
        at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:175)
        at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:157)
        at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
        ... 3 more


* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/5.2.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 27s
4 actionable tasks: 4 executed

If I remove or comment-out the spotbugsPlugins group: 'jp.skypencil.findbugs.slf4j', name: 'bug-pattern', version: versionFindBugsSlf4j line from the build.gradle file, it compiles nicely. This shows up that the findbugs-slf4j plugin is probably the culprit. Note that I'm also using other SpotBugs plugins and they are fine.

[KengoTODA]

deprecates spotbugs/spotbugs#663 probably