I have taken another run at this with Java 11 ASM 7.0. I verified that I am
really running asm 7.0 via the mvn dependency:tree. I am now getting the
following stack trace
ERROR DefaultClassFinder Unable to read class
[com.hs.iws.actions.prizm.PrizmTemplatesAction$1]
java.lang.UnsupportedOperationException: This feature requires ASM7
at org.objectweb.asm.ClassVisitor.visitNestHost(ClassVisitor.java:150)
at org.objectweb.asm.ClassReader.accept(ClassReader.java:541)
at org.objectweb.asm.ClassReader.accept(ClassReader.java:391)
at
org.apache.struts2.convention.DefaultClassFinder.readClassDef(DefaultClassFinder.java:462)
I have traced the problem to the source in
org.apache.struts2.convention.DefaultClassFinder
public class InfoBuildingVisitor extends ClassVisitor {
private Info info;
private ClassFinder classFinder;
public InfoBuildingVisitor(ClassFinder classFinder) {
super(Opcodes.ASM5); // This is the issue raising the Exception
this.classFinder = classFinder;
}
I have commented the line above causing the issue. I assume this would throw
an exception in ASM using anything above 5.
-----Original Message-----
From: Lukasz Lenart <lukaszlen...@apache.org>
Sent: Sunday, November 11, 2018 3:07 AM
To: Struts Users Mailing List <user@struts.apache.org>
Subject: Re: Struts 2.5.x support above Java 8
NOTICE: This email originated from outside of the organization. Do not click
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sob., 10 lis 2018 o 01:39 Paul Zepernick <paul.zepern...@healthsmart.com>
napisał(a):
>
> Has anyone got Struts 2.5 to work for Java 11 or anything above Java 8? I
> have a project that I was trying to migrate to Java 11 using 2.5.18. I have
> it compiling, but then ran into an issue with the ASM library. I am using
> the REST plugin, which is dependent on the convention plugin. The convention
> plugin has the dependency to ASM, and I am getting the error mentioned in
> this ticket:
> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fissue
> s.apache.org%2Fjira%2Fprojects%2FWW%2Fissues%2FWW-4866%3Ffilter%3Dallo
> penissues&data=02%7C01%7CPaul.Zepernick%40healthsmart.com%7Cc789d7
> 84442b4141887d08d647acb9f6%7C2ce547c5e80a40628a56f25adceefb52%7C0%7C0%
> 7C636775204519343782&sdata=JFRCeA9TTXRYdn8Yv6MY0ZKccg%2BgkVpuia%2F
> zY381lD0%3D&reserved=0
>
> I have tried Java 10 with ASM 6.0 mentioned in the comments and ASM 7.0 with
> Java 11. Both produced the same IllegalArgumentException already mentioned.
> A quick glance at the source seemed to indicate that ASM changed the
> constructor on the class that is being called to accept byte[] instead of
> InputStream.
Could you post more details? As far I see the constructor that accepts
InputStream is still available.
> My main goal in all of this was to try and ensure we would be running on a
> supported JDK as support for 8 is about to be up. From what I understand, no
> one from the Java community has committed to back porting security patches
> for 8. Would anyone be willing to share what they are doing with Java 8 in
> the enterprise environment if we have to stay on it for Struts applications?
> Are you purchasing, or already have oracle support?
We do plan support JDK 9 and JDK 11 as from Struts 2.6 (in development), maybe
we will be able to port those changes into 2.5.x branch but we will see.
Regards
--
Łukasz
+ 48 606 323 122
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