Java 1.8 ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet

Question

My web application runs fine on JDK 1.7 but crashes on 1.8 with the following exception (during application server startup with Jetty 8). I am using Spring version: 3.2.5.RELEASE.

Exception:

org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet

I assume that problem occurs because of spring and "asm.jar" library on which it depends.

How do I resolve this?

Answer 1

As @prunge and @Pablo Lozano stated, you need Spring 4 if you want compile code to Java 8 (--target 1.8), but you can still run apps on Java 8 compiled to Java 7 if you run on Spring 3.2.X.

Check out http://docs.spring.io/spring/docs/current/spring-framework-reference/html/new-in-4.0.html

Note that the Java 8 bytecode level (-target 1.8, as required by -source 1.8) is only fully supported as of Spring Framework 4.0. In particular, Spring 3.2 based applications need to be compiled with a maximum of Java 7 as the target, even if they happen to be deployed onto a Java 8 runtime. Please upgrade to Spring 4 for Java 8 based applications.

Answer 2

如果你使用-target 1.7编译时遇到这个错误,请注意这是因为Spring Framework中的一个错误导致ASM类重写器加载jdk类(java.*或javax.*),当然,用-target 1.8编译.

这与春季3.2.8及更低版本中的旧ASM版本相结合,不支持解析1.8类文件,也可能导致此错误.

有关该问题的更多信息,请访问:https://jira.spring.io/browse/SPR-11719

这应该在Spring Framework版本3.2.9中修复,该版本即将发布.

当然,升级到Spring Framework 4也将解决该问题,因为它已经包含更新版本的ASM.

但是,如果由于某种原因你还无法升级到版本4,那么很高兴知道有一种替代方案(很快).