Avoid using class file API when loaded on the boot path as multi release jar files are not available then.

raphw · raphw · commit 04a89c6b16b7 · 2025-12-19T00:20:14.000+01:00
diff --git a/byte-buddy-dep/src/main/java/net/bytebuddy/utility/AsmClassReader.java b/byte-buddy-dep/src/main/java/net/bytebuddy/utility/AsmClassReader.java
@@ -139,7 +139,7 @@ public AsmClassReader make(byte[] binaryRepresentation, boolean experimental) {
                  * {@inheritDoc}
                  */
                 public AsmClassReader make(byte[] binaryRepresentation, boolean experimental) {
-                    return ClassFileVersion.ofThisVm().isGreaterThan(ClassFileVersion.latest())
+                    return AsmClassReader.class.getClassLoader() != null && ClassFileVersion.ofThisVm().isGreaterThan(ClassFileVersion.latest())
                             ? CLASS_FILE_API_ONLY.make(binaryRepresentation, experimental)
                             : ASM_ONLY.make(binaryRepresentation, experimental);
                 }
diff --git a/byte-buddy-dep/src/main/java/net/bytebuddy/utility/AsmClassWriter.java b/byte-buddy-dep/src/main/java/net/bytebuddy/utility/AsmClassWriter.java
@@ -119,7 +119,7 @@ public AsmClassWriter make(int flags, AsmClassReader classReader, TypePool typeP
                  * {@inheritDoc}
                  */
                 public AsmClassWriter make(int flags, AsmClassReader classReader, TypePool typePool) {
-                    return ClassFileVersion.ofThisVm().isGreaterThan(ClassFileVersion.latest())
+                    return AsmClassWriter.class.getClassLoader() != null && ClassFileVersion.ofThisVm().isGreaterThan(ClassFileVersion.latest())
                             ? CLASS_FILE_API_ONLY.make(flags, classReader, typePool)
                             : ASM_ONLY.make(flags, classReader, typePool);
                 }

Original file line number	Diff line number	Diff line change
`@@ -139,7 +139,7 @@ public AsmClassReader make(byte[] binaryRepresentation, boolean experimental) {`
`139`	`139`	`* {@inheritDoc}`
`140`	`140`	`*/`
`141`	`141`	`public AsmClassReader make(byte[] binaryRepresentation, boolean experimental) {`
`142`		`- return ClassFileVersion.ofThisVm().isGreaterThan(ClassFileVersion.latest())`
	`142`	`+ return AsmClassReader.class.getClassLoader() != null && ClassFileVersion.ofThisVm().isGreaterThan(ClassFileVersion.latest())`
`143`	`143`	`? CLASS_FILE_API_ONLY.make(binaryRepresentation, experimental)`
`144`	`144`	`: ASM_ONLY.make(binaryRepresentation, experimental);`
`145`	`145`	`}`
Original file line number	Diff line number	Diff line change
`@@ -119,7 +119,7 @@ public AsmClassWriter make(int flags, AsmClassReader classReader, TypePool typeP`
`119`	`119`	`* {@inheritDoc}`
`120`	`120`	`*/`
`121`	`121`	`public AsmClassWriter make(int flags, AsmClassReader classReader, TypePool typePool) {`
`122`		`- return ClassFileVersion.ofThisVm().isGreaterThan(ClassFileVersion.latest())`
	`122`	`+ return AsmClassWriter.class.getClassLoader() != null && ClassFileVersion.ofThisVm().isGreaterThan(ClassFileVersion.latest())`
`123`	`123`	`? CLASS_FILE_API_ONLY.make(flags, classReader, typePool)`
`124`	`124`	`: ASM_ONLY.make(flags, classReader, typePool);`
`125`	`125`	`}`