NullPointerException while creating GraalVM native image #3815

retriku · 2021-09-19T15:10:21Z

Describe the issue
NullPointerException while creating native image

Steps to reproduce the issue
Please include both build steps as well as run steps

git clone https://github.com/retriku/graalvm-scala-mongodb-npe.git
sbt clean compile 'show graalvm-native-image:packageBin'

Describe GraalVM and your environment:

OpenJDK 64-Bit Server VM (11.0.12+6-jvmci-21.2-b08) for bsd-amd64 JRE (11.0.12+6-jvmci-21.2-b08), built on Jul 19 2021 17:16:18 by "graal" with clang 4.2.1 Compatible Apple LLVM 10.0.0 (clang-1000.11.45.5)
JDK major version: 11
OS: macOS BigSur Version 11.6
Architecture: AMD64

More details

Error seems to originate in https://github.com/mongodb/mongo-java-driver/blob/master/driver-core/src/main/com/mongodb/internal/connection/tlschannel/util/DirectBufferDeallocator.java#L54

I wonder why would Java8Deallocator would be created if image is built with java 11. Is this on purpose?

Let me know if any other info is needed.

Stack trace is below:

    [error] Fatal error:com.oracle.graal.pointsto.util.AnalysisError$ParsingError: Error encountered while parsing com.mongodb.internal.connection.tlschannel.util.DirectBufferDeallocator$Java8Deallocator.<init>() 
[error] Parsing context:
[error]    at com.mongodb.internal.connection.tlschannel.util.DirectBufferDeallocator.<init>(DirectBufferDeallocator.java:114)
[error]    at com.mongodb.internal.connection.tlschannel.DirectBufferAllocator.<init>(DirectBufferAllocator.java:37)
[error]    at com.mongodb.internal.connection.tlschannel.TlsChannel.<clinit>(TlsChannel.java:70)
[error]         at com.oracle.graal.pointsto.util.AnalysisError.parsingError(AnalysisError.java:126)
[error]         at com.oracle.graal.pointsto.flow.MethodTypeFlow.createTypeFlow(MethodTypeFlow.java:307)
[error]         at com.oracle.graal.pointsto.flow.MethodTypeFlow.ensureTypeFlowCreated(MethodTypeFlow.java:282)
[error]         at com.oracle.graal.pointsto.flow.MethodTypeFlow.addContext(MethodTypeFlow.java:103)
[error]         at com.oracle.graal.pointsto.DefaultAnalysisPolicy$DefaultSpecialInvokeTypeFlow.onObservedUpdate(DefaultAnalysisPolicy.java:363)
[error]         at com.oracle.graal.pointsto.flow.TypeFlow.notifyObservers(TypeFlow.java:471)
[error]         at com.oracle.graal.pointsto.flow.TypeFlow.update(TypeFlow.java:540)
[error]         at com.oracle.graal.pointsto.BigBang$2.run(BigBang.java:539)
[error]         at com.oracle.graal.pointsto.util.CompletionExecutor.executeCommand(CompletionExecutor.java:188)
[error]         at com.oracle.graal.pointsto.util.CompletionExecutor.lambda$executeService$0(CompletionExecutor.java:172)
[error]         at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1426)
[error]         at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
[error]         at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
[error]         at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
[error]         at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
[error]         at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
[error] Caused by: org.graalvm.compiler.java.BytecodeParser$BytecodeParserError: java.lang.NullPointerException
[error]         at parsing com.mongodb.internal.connection.tlschannel.util.DirectBufferDeallocator$Java8Deallocator.<init>(DirectBufferDeallocator.java:54)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.throwParserError(BytecodeParser.java:2578)
[error]         at com.oracle.svm.hosted.phases.SharedGraphBuilderPhase$SharedBytecodeParser.throwParserError(SharedGraphBuilderPhase.java:111)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.iterateBytecodesForBlock(BytecodeParser.java:3439)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.handleBytecodeBlock(BytecodeParser.java:3391)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.processBlock(BytecodeParser.java:3236)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.build(BytecodeParser.java:1122)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.buildRootMethod(BytecodeParser.java:1007)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.GraphBuilderPhase$Instance.run(GraphBuilderPhase.java:84)
[error]         at com.oracle.svm.hosted.phases.SharedGraphBuilderPhase.run(SharedGraphBuilderPhase.java:81)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.phases.Phase.run(Phase.java:49)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.phases.BasePhase.apply(BasePhase.java:212)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.phases.Phase.apply(Phase.java:42)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.phases.Phase.apply(Phase.java:38)
[error]         at com.oracle.graal.pointsto.flow.AnalysisParsedGraph.parseBytecode(AnalysisParsedGraph.java:131)
[error]         at com.oracle.svm.hosted.SVMHost.parseBytecode(SVMHost.java:709)
[error]         at com.oracle.graal.pointsto.meta.AnalysisMethod.ensureGraphParsed(AnalysisMethod.java:605)
[error]         at com.oracle.graal.pointsto.flow.MethodTypeFlowBuilder.parse(MethodTypeFlowBuilder.java:163)
[error]         at com.oracle.graal.pointsto.flow.MethodTypeFlowBuilder.apply(MethodTypeFlowBuilder.java:321)
[error]         at com.oracle.graal.pointsto.flow.MethodTypeFlow.createTypeFlow(MethodTypeFlow.java:293)
[error]         ... 14 more
[error] Caused by: java.lang.NullPointerException
[error]         at com.oracle.svm.hosted.snippets.ReflectionPlugins.lambda$foldInvocationUsingReflection$3(ReflectionPlugins.java:374)
[error]         at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
[error]         at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
[error]         at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
[error]         at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
[error]         at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
[error]         at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
[error]         at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
[error]         at com.oracle.svm.hosted.snippets.ReflectionPlugins.lambda$foldInvocationUsingReflection$4(ReflectionPlugins.java:374)
[error]         at com.oracle.svm.hosted.snippets.ReflectionPlugins.traceConstant(ReflectionPlugins.java:565)
[error]         at com.oracle.svm.hosted.snippets.ReflectionPlugins.pushConstant(ReflectionPlugins.java:539)
[error]         at com.oracle.svm.hosted.snippets.ReflectionPlugins.foldInvocationUsingReflection(ReflectionPlugins.java:394)
[error]         at com.oracle.svm.hosted.snippets.ReflectionPlugins.access$200(ReflectionPlugins.java:95)
[error]         at com.oracle.svm.hosted.snippets.ReflectionPlugins$5.defaultHandler(ReflectionPlugins.java:335)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin.apply(InvocationPlugin.java:105)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin.execute(InvocationPlugin.java:170)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.applyInvocationPlugin(BytecodeParser.java:2197)
[error]         at com.oracle.svm.hosted.phases.AnalysisGraphBuilderPhase$AnalysisBytecodeParser.applyInvocationPlugin(AnalysisGraphBuilderPhase.java:86)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.tryInvocationPlugin(BytecodeParser.java:2183)
[error]         at com.oracle.svm.hosted.phases.AnalysisGraphBuilderPhase$AnalysisBytecodeParser.tryInvocationPlugin(AnalysisGraphBuilderPhase.java:67)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.appendInvoke(BytecodeParser.java:1889)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.genDynamicInvokeHelper(BytecodeParser.java:1762)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.genInvokeVirtual(BytecodeParser.java:1712)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.genInvokeVirtual(BytecodeParser.java:1697)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.processBytecode(BytecodeParser.java:5371)
[error]         at jdk.internal.vm.compiler/org.graalvm.compiler.java.BytecodeParser.iterateBytecodesForBlock(BytecodeParser.java:3431)
[error]         ... 30 more

The text was updated successfully, but these errors were encountered:

munishchouhan · 2021-09-23T06:41:39Z

@retriku thanks for reporting the error, we will take a look and get back to you

munishchouhan · 2021-09-23T08:49:48Z

@retriku When I am trying to use jar file of this project, I am getting Error:

$java -jar target/scala-2.13/graalvm-scala-simple_2.13-0.1.0.jar
Error: Unable to initialize main class graalvm.Main
Caused by: java.lang.NoClassDefFoundError: org/mongodb/scala/MongoDatabase

munishchouhan · 2021-09-23T08:52:36Z

for native-image, you can use native-image-agent to generate config files and add them to the settings in build.sbt

Run agent
java -agentlib:native-image-agent=config-output-dir=./configs -jar target/scala-2.13/graalvm-scala-simple_2.13-0.1.0.jar
add config files

"-H:ResourceConfigurationFiles=../../configs/resource-config.json",
	"-H:ReflectionConfigurationFiles=../../configs/reflect-config.json",
	"-H:JNIConfigurationFiles=../../configs/jni-config.json",
	"-H:DynamicProxyConfigurationFiles=../../configs/proxy-config.json"

retriku · 2021-09-23T09:35:55Z

I added assembly plugin. You can build fat jar with sbt assembly, it will create file graalvm-scala-simple-assembly-0.1.0.jar. I force pushed code to repo.

Failing image build seems to be due to (Class[])null parameter value. Following code also fails to create native image:

import java.lang.reflect.Method;

public class JavaApp {
    public static void main(String[] args) throws Exception {
        Method cleanerAccessor = Class.forName("sun.nio.ch.DirectBuffer").getMethod("cleaner", (Class[])null);
        System.out.println(cleanerAccessor);
        Method cleanMethod = Class.forName("sun.misc.Cleaner").getMethod("clean");
        System.out.println(cleanMethod);
    }
}

But succeeds with code:

import java.lang.reflect.Method;

public class JavaApp {
    public static void main(String[] args) throws Exception {
        Method cleanerAccessor = Class.forName("sun.nio.ch.DirectBuffer").getMethod("cleaner");
        System.out.println(cleanerAccessor);
        Method cleanMethod = Class.forName("sun.misc.Cleaner").getMethod("clean");
        System.out.println(cleanMethod);
    }
}

munishchouhan · 2021-09-23T10:00:05Z

@retriku ok great, do you still need any other assistance from our side?

jyemin · 2021-09-23T11:25:47Z

Hi @mcraj017, the code that @retriku is referring to is contained in multiple releases of a widely-used library (I'm one of the maintainers), so @retriku can't easily change it. Moreover, the Javadoc for Class.getMethod() explicitly states that it's legal to pass null as the value of parameterTypes:

The parameterTypes parameter is an array of Class objects that identify the method's formal parameter types, in declared order. If parameterTypes is null, it is treated as if it were an empty array.

So it seems like GraalVM should handle this code without error, but if not I'd like to understand why.

munishchouhan · 2021-09-24T05:47:23Z

@jyemin thanks for the clarification, I have raised this issue with the native-image team

christianwimmer · 2021-10-05T00:54:50Z

The error occurs as part of the trace output enabled by -H:+ReflectionPluginTracing. So when you remove that option, the error should go away.
Still something we will fix of course.

christianwimmer · 2021-10-22T23:08:24Z

Fixed in 8297f26

retriku added bug native-image labels Sep 19, 2021

munishchouhan self-assigned this Sep 23, 2021

munishchouhan assigned christianwimmer and unassigned munishchouhan Sep 24, 2021

jyemin mentioned this issue Sep 25, 2021

Call to Class.getMethod causing issue on GraalVM marianobarrios/tls-channel#27

Closed

christianwimmer closed this as completed Oct 22, 2021

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NullPointerException while creating GraalVM native image #3815

NullPointerException while creating GraalVM native image #3815

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NullPointerException while creating GraalVM native image #3815

NullPointerException while creating GraalVM native image #3815

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