NPE because annotation.resolvedType is null

[tiller]

I updated my eclipse to the latest 4.38.M2 integration and I have the following error:

!ENTRY org.eclipse.core.resources 4 2 2025-11-12 14:07:04.809
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.core.resources".
!STACK 0
java.lang.NullPointerException: Cannot invoke "org.eclipse.jdt.internal.compiler.lookup.TypeBinding.getAnnotationTagBits()" because "annotation.resolvedType" is null
	at org.eclipse.jdt.internal.compiler.ast.Annotation.isTypeUseCompatible(Annotation.java:1378)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypeFor(SourceTypeBinding.java:1013)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypeFor(SourceTypeBinding.java:1045)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.components(SourceTypeBinding.java:929)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.getField(SourceTypeBinding.java:1395)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findField(Scope.java:1399)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findField(Scope.java:1345)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getBinding(Scope.java:2084)
	at org.eclipse.jdt.internal.compiler.lookup.BlockScope.getBinding(BlockScope.java:493)
	at org.eclipse.jdt.internal.compiler.ast.QualifiedNameReference.resolveType(QualifiedNameReference.java:1007)
	at org.eclipse.jdt.internal.compiler.ast.MemberValuePair.resolveTypeExpecting(MemberValuePair.java:96)
	at org.eclipse.jdt.internal.compiler.ast.Annotation.resolveType(Annotation.java:923)
	at org.eclipse.jdt.internal.compiler.ast.ASTNode.resolveAnnotations(ASTNode.java:902)
	at org.eclipse.jdt.internal.compiler.ast.ASTNode.resolveAnnotations(ASTNode.java:793)
	at org.eclipse.jdt.internal.compiler.lookup.RecordComponentBinding.getAnnotationTagBits(RecordComponentBinding.java:97)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypeFor(SourceTypeBinding.java:947)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypeFor(SourceTypeBinding.java:1045)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.components(SourceTypeBinding.java:929)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.getField(SourceTypeBinding.java:1395)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findField(Scope.java:1399)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findField(Scope.java:1345)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getBinding(Scope.java:2084)
	at org.eclipse.jdt.internal.compiler.lookup.BlockScope.getBinding(BlockScope.java:493)
	at org.eclipse.jdt.internal.compiler.ast.QualifiedNameReference.resolveType(QualifiedNameReference.java:1007)
	at org.eclipse.jdt.internal.compiler.ast.MemberValuePair.resolveTypeExpecting(MemberValuePair.java:96)
	at org.eclipse.jdt.internal.compiler.ast.Annotation.resolveType(Annotation.java:923)
	at org.eclipse.jdt.internal.compiler.ast.ASTNode.resolveAnnotations(ASTNode.java:902)
	at org.eclipse.jdt.internal.compiler.ast.ASTNode.resolveAnnotations(ASTNode.java:793)
	at org.eclipse.jdt.internal.compiler.lookup.RecordComponentBinding.getAnnotationTagBits(RecordComponentBinding.java:97)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypeFor(SourceTypeBinding.java:947)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypeFor(SourceTypeBinding.java:1045)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.components(SourceTypeBinding.java:929)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.getField(SourceTypeBinding.java:1395)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findField(Scope.java:1399)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findField(Scope.java:1345)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getBinding(Scope.java:2084)
	at org.eclipse.jdt.internal.compiler.lookup.BlockScope.getBinding(BlockScope.java:493)
	at org.eclipse.jdt.internal.compiler.ast.QualifiedNameReference.resolveType(QualifiedNameReference.java:1007)
	at org.eclipse.jdt.internal.compiler.ast.MemberValuePair.resolveTypeExpecting(MemberValuePair.java:96)
	at org.eclipse.jdt.internal.compiler.ast.Annotation.resolveType(Annotation.java:923)
	at org.eclipse.jdt.internal.compiler.ast.ASTNode.resolveAnnotations(ASTNode.java:902)
	at org.eclipse.jdt.internal.compiler.ast.ASTNode.resolveAnnotations(ASTNode.java:793)
	at org.eclipse.jdt.internal.compiler.lookup.RecordComponentBinding.getAnnotationTagBits(RecordComponentBinding.java:97)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypeFor(SourceTypeBinding.java:947)
	at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypeFor(SourceTypeBinding.java:1045)
	at org.eclipse.jdt.internal.compiler.apt.dispatch.AnnotationDiscoveryVisitor.visit(AnnotationDiscoveryVisitor.java:126)
	at org.eclipse.jdt.internal.compiler.ast.RecordComponent.traverse(RecordComponent.java:105)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.traverse(TypeDeclaration.java:1655)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.traverse(CompilationUnitDeclaration.java:816)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.traverse(CompilationUnitDeclaration.java:777)
	at org.eclipse.jdt.internal.compiler.apt.dispatch.RoundEnvImpl.<init>(RoundEnvImpl.java:62)
	at org.eclipse.jdt.internal.compiler.apt.dispatch.BaseAnnotationProcessorManager.processAnnotations(BaseAnnotationProcessorManager.java:168)
	at org.eclipse.jdt.internal.apt.pluggable.core.dispatch.IdeAnnotationProcessorManager.processAnnotations(IdeAnnotationProcessorManager.java:132)
	at org.eclipse.jdt.internal.compiler.Compiler.processAnnotations(Compiler.java:859)
	at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:333)
	at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:309)
	at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:486)
	at org.eclipse.jdt.internal.core.builder.BatchImageBuilder.compile(BatchImageBuilder.java:253)
	at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:377)
	at org.eclipse.jdt.internal.core.builder.BatchImageBuilder.build(BatchImageBuilder.java:118)
	at org.eclipse.jdt.internal.core.builder.JavaBuilder.buildAll(JavaBuilder.java:312)
	at org.eclipse.jdt.internal.core.builder.JavaBuilder.build(JavaBuilder.java:224)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:1109)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:299)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:355)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:449)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:452)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:564)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:512)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:594)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:208)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:309)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

This seems related to the fix done for #4551 by @srikanth-sankaran, but I might be wrong

I don't really have any code snippet to share, as my project is not public and I don't have a lot of clues regarding what causes the issue

jdt.core 3.44.0.v20251111-1922

[iloveeclipse]

Can you check with latest nightly build?
https://download.eclipse.org/eclipse/downloads/drops4/I20251111-1800

[tiller]

@iloveeclipse : unless I'm mistaken, I think I have the latest nightly build

[iloveeclipse]

Thanks. @srikanth-sankaran : please check. Note, M3 is this Friday (but regressions can be also fixed in RC builds).

[tiller]

I also seem to have another issue, still related to the base bug of annotated record.

I have a project with the following record:

package mypackage.dto;

import com.fasterxml.jackson.annotation.JsonProperty;
import mypackage.IsoAlpha3CountryCode;
import org.hibernate.validator.constraints.Length;

import static mypackage.DomainMetadata.Constraints.DEFAULT_STRING_MAX_LENGTH;

public record ReturnAddressPrivateDto(
        @Length(max = DEFAULT_STRING_MAX_LENGTH)
        @JsonProperty("street1")
        String street1,

        @Length(max = DEFAULT_STRING_MAX_LENGTH)
        @JsonProperty("street2")
        String street2,

        @JsonProperty("zipCode")
        String zipCode,

        @Length(max = DEFAULT_STRING_MAX_LENGTH)
        @JsonProperty("city")
        String city,

        @Length(max = DEFAULT_STRING_MAX_LENGTH)
        @JsonProperty("state")
        String state,

        @JsonProperty("country")
        IsoAlpha3CountryCode country
) {
}

When I clean my project, I can see that all the .class generated by eclipse are removed on my filesystem. However, when I re-build the project, the .class for this record is not generated ; and I have compilation errors in the project because of the missing type.

When I open my class, add a blank space and save, the .class is generated

(javap -p)
Compiled from "ReturnAddressPrivateDto.java"
public final class mypackage.dto.ReturnAddressPrivateDto extends java.lang.Record {
  private final java.lang.String street1;
  private final java.lang.String street2;
  private final java.lang.String zipCode;
  private final java.lang.String city;
  private final java.lang.String state;
  private final mypackage.IsoAlpha3CountryCode country;
  public java.lang.String street1();
  public java.lang.String street2();
  public java.lang.String zipCode();
  public java.lang.String city();
  public java.lang.String state();
  public mypackage.IsoAlpha3CountryCode country();
  public final java.lang.String toString();
  public final int hashCode();
  public final boolean equals(java.lang.Object);
  public mypackage.dto.ReturnAddressPrivateDto(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, mypackage.IsoAlpha3CountryCode);

But then again, if I clean, the .class is deleted and when I build, it's not recreated. I restarted my eclipse : same, and I have no error log in my eclipse's logs afaics

[tiller]

But my comment above might be linked to something else: when I recreated all the missing .class files from the project, I still have an error on my project that I can't explain for now (and that I did not have before updating eclipse). And maybe it's because of this error that the classes are not built :

Inconsistent classfile encountered: The undefined type parameter T is referenced from within ReturnUpdateCommand

With:

public record ReturnUpdateCommand(
        Patch<@Valid ReturnUpdateTrackingTuple> tracking,

        Patch<String> rma,

        Patch<@ValidUrlTemplate(value = UrlValidationType.RETURN_LABEL_URL, message = "{" + RETURN_LABEL_URL_VALIDATION_ERROR + "}")
                String> labelUrl
) {

    public ReturnUpdateTrackingTuple getTracking() {
        return tracking.get();
    }
}

@Documented
@Constraint(validatedBy = UrlTemplateValidator.class)
@Target({METHOD, FIELD, TYPE_USE})
@Retention(RetentionPolicy.RUNTIME)
public @interface ValidUrlTemplate {
    UrlValidationType value();

    String message() default "{mypackage.message}";

    Class<?>[] groups() default {};

    Class<? extends Payload>[] payload() default {};
}

public class Patch<T> {
...
}

I'm guessing the annotation in the parametized type is what's causing the issue

[iloveeclipse]

@tiller : it would simplify our (and especially @srikanth-sankaran) life if you could provide a simple self containing project that shows the problem(s).

[tiller]

For the last issue I mentioned:
https://github.com/Tiller/jdt-annot-issue

For the first one, idk how to reproduce outside of my existing repository

Edit: and for the second one (record that are not automatically compiled, I have A LOT of record (and some classes !!) that are not automatically compiled)
Edit2: removing all annotated generics in record in my project seems to fix the non compiled classes/records

[srikanth-sankaran]

For the first one, idk how to reproduce outside of my existing repository

So are you able to apply patches and verify if that solves your problem ??

[tiller]

With some guidance, I guess I can yes :D

[tiller]

I found the class that causes the initial issue. I can't even open the class in the IDE, the editor fails with NPE too.

The code of the record is:

package mycompany;

import com.fasterxml.jackson.annotation.JsonProperty;
import mycompany.ClassA;
import mycompany.ClassB;
import mycompany.ClassC;
import mycompany.ClassD;
import io.swagger.v3.oas.annotations.media.Schema;
import io.swagger.v3.oas.annotations.media.Schema.RequiredMode;
import jakarta.validation.GroupSequence;
import jakarta.validation.Valid;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.NotNull;
import org.hibernate.validator.constraints.URL;

import java.util.Map;

@GroupSequence({ UpsertOperatorAccountDto.class, ClassA.class })
@ClassC(groups = ClassA.class)
public record UpsertOperatorAccountDto(

        @Schema(description = "str", requiredMode = RequiredMode.NOT_REQUIRED)
        @JsonProperty("str")
        @ClassB
        String externalAccountId,

        @Schema(description = "str", requiredMode = RequiredMode.REQUIRED)
        @JsonProperty("str")
        @ClassD
        String productId,

        @Schema(description = "str", requiredMode = RequiredMode.REQUIRED)
        @JsonProperty("str")
        @Valid
        @NotNull
        UpsertOperatorAccountDto.UpsertEnvironmentDto environment,

        @Schema(description = """
                str""",
                requiredMode = RequiredMode.NOT_REQUIRED)
        @JsonProperty("str")
        Map<String, String> metadata
) {
    public record UpsertEnvironmentDto(

            @Schema(description = "str", requiredMode = RequiredMode.REQUIRED)
            @JsonProperty("str")
            @NotNull
            String id,

            @Schema(description = "str", requiredMode = RequiredMode.REQUIRED)
            @JsonProperty("str")
            @URL(regexp = "str")
            @NotBlank
            String url
    ) {

    }
}

I'm trying to extract it into a dummy project but I'm struggling at the moment

[tiller]

OK here's the repro (same repo as before, but not on master, on npe)
https://github.com/Tiller/jdt-annot-issue/tree/npe

The issue comes from:

@Schema(description = "str", requiredMode = RequiredMode.REQUIRED) @JsonProperty("str") @Valid @NotNull Broken.UpsertEnvironmentDto environment,

If Broken.UpsertEnvironmentDto is replaced by Object => no issues

[srikanth-sankaran]

Thanks for the test cases @tiller - I am looking into the problems.