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Introduce ClassFormatException and spring.classformat.ignore property

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Closes gh-27691
This commit is contained in:
Juergen Hoeller
2023-12-09 20:03:57 +01:00
parent 77b0382a6c
commit c57b7e8418
6 changed files with 124 additions and 9 deletions
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54
spring-core/src/main/java/org/springframework/core/type/classreading/ClassFormatException.java Normal file
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@@ -0,0 +1,54 @@
/*
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.core.type.classreading;
import java.io.IOException;
import org.springframework.core.io.Resource;
/**
* Exception that indicates an incompatible class format encountered
* in a class file during metadata reading.
*
* @author Juergen Hoeller
* @since 6.1.2
* @see MetadataReaderFactory#getMetadataReader(Resource)
* @see ClassFormatError
*/
@SuppressWarnings("serial")
public class ClassFormatException extends IOException {
/**
* Construct a new {@code ClassFormatException} with the
* supplied message.
* @param message the detail message
*/
public ClassFormatException(String message) {
super(message);
}
/**
* Construct a new {@code ClassFormatException} with the
* supplied message and cause.
* @param message the detail message
* @param cause the root cause
*/
public ClassFormatException(String message, Throwable cause) {
super(message, cause);
}
}

4
spring-core/src/main/java/org/springframework/core/type/classreading/MetadataReaderFactory.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2012 the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -35,6 +35,7 @@ public interface MetadataReaderFactory {
* Obtain a MetadataReader for the given class name.
* @param className the class name (to be resolved to a ".class" file)
* @return a holder for the ClassReader instance (never {@code null})
* @throws ClassFormatException in case of an incompatible class format
* @throws IOException in case of I/O failure
*/
MetadataReader getMetadataReader(String className) throws IOException;
@@ -43,6 +44,7 @@ public interface MetadataReaderFactory {
* Obtain a MetadataReader for the given resource.
* @param resource the resource (pointing to a ".class" file)
* @return a holder for the ClassReader instance (never {@code null})
* @throws ClassFormatException in case of an incompatible class format
* @throws IOException in case of I/O failure
*/
MetadataReader getMetadataReader(Resource resource) throws IOException;

12
spring-core/src/main/java/org/springframework/core/type/classreading/SimpleMetadataReader.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2022 the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -35,8 +35,8 @@ import org.springframework.lang.Nullable;
*/
final class SimpleMetadataReader implements MetadataReader {
private static final int PARSING_OPTIONS = ClassReader.SKIP_DEBUG
| ClassReader.SKIP_CODE | ClassReader.SKIP_FRAMES;
private static final int PARSING_OPTIONS =
(ClassReader.SKIP_DEBUG | ClassReader.SKIP_CODE | ClassReader.SKIP_FRAMES);
private final Resource resource;
@@ -56,8 +56,10 @@ final class SimpleMetadataReader implements MetadataReader {
return new ClassReader(is);
}
catch (IllegalArgumentException ex) {
throw new IOException("ASM ClassReader failed to parse class file - " +
"probably due to a new Java class file version that isn't supported yet: " + resource, ex);
throw new ClassFormatException("ASM ClassReader failed to parse class file - " +
"probably due to a new Java class file version that is not supported yet. " +
"Consider compiling with a lower '-target' or upgrade your framework version. " +
"Affected class: " + resource, ex);
}
}
}