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Reduce/eliminate introspection on java.* classes #4907

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gsmet opened this issue Jan 15, 2025 · 0 comments
Open

Reduce/eliminate introspection on java.* classes #4907

gsmet opened this issue Jan 15, 2025 · 0 comments
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gsmet commented Jan 15, 2025

Is your feature request related to a problem? Please describe.

This is a follow-up to this discussion in the Quarkus tracker: quarkusio/quarkus#45537 (comment) .

In the Quarkus project, @zakkak is leading an effort to allow throwing exceptions when GraalVM/Mandrel tries to do reflection calls on elements that were not registered for reflection. This effort leads to all sort of discoveries and in the issue above we discovered that Jackson tries to collect information on java.* classes, which should probably be avoided: these classes can't be annotated with Jackson classes and they are well known so we could probably hardcode what's needed.

We are having this issue with at least AnnotatedFieldCollector/AnnotatedMethodCollector/AnnotatedCreatorCollector. There might be others.

Examples of this issue with stacktraces:

org.graalvm.nativeimage.MissingReflectionRegistrationError: The program tried to reflectively access

   java.util.Date.getDeclaredFields()

without it being registered for runtime reflection. Add java.util.Date.getDeclaredFields() to the reflection metadata to solve this problem. See https://www.graalvm.org/latest/reference-manual/native-image/metadata/#reflection for help.
  java.base@23.0.1/java.lang.Class.getDeclaredFields(DynamicHub.java:1251)
  com.fasterxml.jackson.databind.introspect.AnnotatedFieldCollector._findFields(AnnotatedFieldCollector.java:73)
  com.fasterxml.jackson.databind.introspect.AnnotatedFieldCollector._findFields(AnnotatedFieldCollector.java:71)
  com.fasterxml.jackson.databind.introspect.AnnotatedFieldCollector.collect(AnnotatedFieldCollector.java:48)
org.graalvm.nativeimage.MissingReflectionRegistrationError: The program tried to reflectively access

   java.sql.Date.getDeclaredFields()

without it being registered for runtime reflection. Add java.sql.Date.getDeclaredFields() to the reflection metadata to solve this problem. See https://www.graalvm.org/latest/reference-manual/native-image/metadata/#reflection for help.
  java.base@23.0.1/java.lang.Class.getDeclaredFields(DynamicHub.java:1251)
  com.fasterxml.jackson.databind.introspect.AnnotatedFieldCollector._findFields(AnnotatedFieldCollector.java:73)
  com.fasterxml.jackson.databind.introspect.AnnotatedFieldCollector.collect(AnnotatedFieldCollector.java:48)
  com.fasterxml.jackson.databind.introspect.AnnotatedFieldCollector.collectFields(AnnotatedFieldCollector.java:43)
org.graalvm.nativeimage.MissingReflectionRegistrationError: The program tried to reflectively access

   java.sql.Date.getDeclaredMethods()

without it being registered for runtime reflection. Add java.sql.Date.getDeclaredMethods() to the reflection metadata to solve this problem. See https://www.graalvm.org/latest/reference-manual/native-image/metadata/#reflection for help.
  java.base@23.0.1/java.lang.Class.getDeclaredMethods(DynamicHub.java:1258)
  com.fasterxml.jackson.databind.util.ClassUtil.getClassMethods(ClassUtil.java:1300)
  com.fasterxml.jackson.databind.introspect.AnnotatedMethodCollector._addMemberMethods(AnnotatedMethodCollector.java:115)
  com.fasterxml.jackson.databind.introspect.AnnotatedMethodCollector.collect(AnnotatedMethodCollector.java:49)
org.graalvm.nativeimage.MissingReflectionRegistrationError: The program tried to reflectively access

   java.util.Date.getDeclaredMethods()

without it being registered for runtime reflection. Add java.util.Date.getDeclaredMethods() to the reflection metadata to solve this problem. See https://www.graalvm.org/latest/reference-manual/native-image/metadata/#reflection for help.
  java.base@23.0.1/java.lang.Class.getDeclaredMethods(DynamicHub.java:1258)
  com.fasterxml.jackson.databind.util.ClassUtil.getClassMethods(ClassUtil.java:1300)
  com.fasterxml.jackson.databind.introspect.AnnotatedMethodCollector._addMemberMethods(AnnotatedMethodCollector.java:115)
  com.fasterxml.jackson.databind.introspect.AnnotatedMethodCollector.collect(AnnotatedMethodCollector.java:54)
org.graalvm.nativeimage.MissingReflectionRegistrationError: The program tried to reflectively access

   java.io.Serializable.getDeclaredMethods()

without it being registered for runtime reflection. Add java.io.Serializable.getDeclaredMethods() to the reflection metadata to solve this problem. See https://www.graalvm.org/latest/reference-manual/native-image/metadata/#reflection for help.
  java.base@23.0.1/java.lang.Class.getDeclaredMethods(DynamicHub.java:1258)
  com.fasterxml.jackson.databind.util.ClassUtil.getClassMethods(ClassUtil.java:1300)
  com.fasterxml.jackson.databind.introspect.AnnotatedMethodCollector._addMemberMethods(AnnotatedMethodCollector.java:115)
  com.fasterxml.jackson.databind.introspect.AnnotatedMethodCollector.collect(AnnotatedMethodCollector.java:54)
org.graalvm.nativeimage.MissingReflectionRegistrationError: The program tried to reflectively access

   java.lang.Cloneable.getDeclaredMethods()

without it being registered for runtime reflection. Add java.lang.Cloneable.getDeclaredMethods() to the reflection metadata to solve this problem. See https://www.graalvm.org/latest/reference-manual/native-image/metadata/#reflection for help.
  java.base@23.0.1/java.lang.Class.getDeclaredMethods(DynamicHub.java:1258)
  com.fasterxml.jackson.databind.util.ClassUtil.getClassMethods(ClassUtil.java:1300)
  com.fasterxml.jackson.databind.introspect.AnnotatedMethodCollector._addMemberMethods(AnnotatedMethodCollector.java:115)
  com.fasterxml.jackson.databind.introspect.AnnotatedMethodCollector.collect(AnnotatedMethodCollector.java:54)
org.graalvm.nativeimage.MissingReflectionRegistrationError: The program tried to reflectively access

   java.lang.Comparable.getDeclaredMethods()

without it being registered for runtime reflection. Add java.lang.Comparable.getDeclaredMethods() to the reflection metadata to solve this problem. See https://www.graalvm.org/latest/reference-manual/native-image/metadata/#reflection for help.
  java.base@23.0.1/java.lang.Class.getDeclaredMethods(DynamicHub.java:1258)
  com.fasterxml.jackson.databind.util.ClassUtil.getClassMethods(ClassUtil.java:1300)
  com.fasterxml.jackson.databind.introspect.AnnotatedMethodCollector._addMemberMethods(AnnotatedMethodCollector.java:115)
  com.fasterxml.jackson.databind.introspect.AnnotatedMethodCollector.collect(AnnotatedMethodCollector.java:54)
org.graalvm.nativeimage.MissingReflectionRegistrationError: The program tried to reflectively access

   java.sql.Date.getDeclaredConstructors()

without it being registered for runtime reflection. Add java.sql.Date.getDeclaredConstructors() to the reflection metadata to solve this problem. See https://www.graalvm.org/latest/reference-manual/native-image/metadata/#reflection for help.
  java.base@23.0.1/java.lang.Class.getDeclaredConstructors(DynamicHub.java:1264)
  com.fasterxml.jackson.databind.util.ClassUtil.getConstructors(ClassUtil.java:1345)
  com.fasterxml.jackson.databind.introspect.AnnotatedCreatorCollector._findPotentialConstructors(AnnotatedCreatorCollector.java:115)
  com.fasterxml.jackson.databind.introspect.AnnotatedCreatorCollector.collect(AnnotatedCreatorCollector.java:70)
org.graalvm.nativeimage.MissingReflectionRegistrationError: The program tried to reflectively access

   java.sql.Date.getDeclaredMethods()

without it being registered for runtime reflection. Add java.sql.Date.getDeclaredMethods() to the reflection metadata to solve this problem. See https://www.graalvm.org/latest/reference-manual/native-image/metadata/#reflection for help.
  java.base@23.0.1/java.lang.Class.getDeclaredMethods(DynamicHub.java:1258)
  com.fasterxml.jackson.databind.util.ClassUtil.getClassMethods(ClassUtil.java:1300)
  com.fasterxml.jackson.databind.introspect.AnnotatedCreatorCollector._findPotentialFactories(AnnotatedCreatorCollector.java:197)
  com.fasterxml.jackson.databind.introspect.AnnotatedCreatorCollector.collect(AnnotatedCreatorCollector.java:71)

Describe the solution you'd like

Ideally, we should avoid dynamically resolving this information for java.* classes.

Usage example

No response

Additional context

No response

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