How to handle errors

[ski n]

Thanks, the first issue is the most present issue.

The other one may have happened, because I added an optional argument which
wasn't in the training run.

Raymond

On Fri, Apr 25, 2025 at 2:40 PM Dan Heidinga <dan.heidinga at oracle.com>
wrote:

> Thanks for reporting the issue.  I see Ioi has run into the same problem
> with MethodHandleImpl::BindCaller and is putting together a fix in
> https://bugs.openjdk.org/browse/JDK-8354890
>
>
>
> For the second issue:
>
> I still got this error and warning:
>
> [0.026s][error][cds] CDS archive has aot-linked classes. It cannot be used
> when archived full module graph is not used.
> [0.017s][warning][cds] shared class paths mismatch (hint: enable
> -Xlog:class+path=info to diagnose the failure)
>
>
>
> Have you confirmed that the class paths are the same between the assembly
> phase (-XX:AOTMode=create) and when using the cache?  Confirming the “-Xlog:class+path=info”
> output from both the assembly and production runs are the same would help.
>
>
>
> --Dan
>
>
>
> *From: *leyden-dev <leyden-dev-retn at openjdk.org> on behalf of ski n <
> raymondmeester at gmail.com>
> *Date: *Friday, April 25, 2025 at 4:59 AM
> *To: *leyden-dev at openjdk.org <leyden-dev at openjdk.org>
> *Subject: *How to handle errors
>
>
>
> Hi Leyden devs,
>
> I used CDS before with my Spring Boot application. I recently started to
> test Leyden with the recent released JDK24.01 (both GraalVM and Temurin).
> Likewise, I first want to test this
>
> on my local laptop (Windows 11/intel i7), and try to implement this in my
> CI/CD to create the cache with a training run, probably with JDK25.
>
> I run the following commands:
>
> D:\test\graalvm-jdk-24.0.1+9.1\bin\java -XX:AOTMode=record
> -XX:AOTConfiguration=app.aotconf -jar gateway-5.1.0.jar
> D:\test\graalvm-jdk-24.0.1+9.1\bin\java -XX:AOTMode=create
> -XX:AOTConfiguration=app.aotconf -XX:AOTCache=app.aot -jar gateway-5.1.0.jar
> D:\test\graalvm-jdk-24.0.1+9.1\bin\java -XX:AOTCache=app.aot -jar
> gateway-5.1.0.jar
>
> However, on the second command, I get these warnings/errors:
>
> D:\test\jdk-24.0.1+9\bin\java -XX:AOTMode=create
> -XX:AOTConfiguration=app.aotconf -XX:AOTCache=app.aot -jar gateway-5.1.0.jar
> [0.657s][warning][cds] Skipping jdk/internal/event/Event: JFR event class
> [1.147s][warning][cds,heap] Archive heap points to a static field that may
> hold a different value at runtime:
> [1.148s][warning][cds,heap] Field:
> java/lang/invoke/MethodHandleImpl$BindCaller::CD_Object_array
> [1.150s][warning][cds,heap] Value: jdk.internal.constant.ArrayClassDescImpl
> [1.150s][warning][cds,heap] {0x0000000605959028} - klass:
> 'jdk/internal/constant/ArrayClassDescImpl' - flags:
> [1.150s][warning][cds,heap]
> [1.151s][warning][cds,heap]  - ---- fields (total size 3 words):
> [1.151s][warning][cds,heap]  - private final 'rank' 'I' @12  1 (0x00000001)
> [1.152s][warning][cds,heap]  - private final 'elementType'
> 'Ljava/lang/constant/ClassDesc;' @16  a
> 'jdk/internal/constant/ClassOrInterfaceDescImpl'{0x0000000605914380}
> (0xc0b22870)
> [1.152s][warning][cds,heap]  - private 'cachedDescriptorString'
> 'Ljava/lang/String;' @20  "[Ljava/lang/Object;"{0x0000000605959040}
> (0xc0b2b208)
> [1.152s][warning][cds,heap] --- trace begin ---
> [1.153s][warning][cds,heap] [ 0] {0x0000000605b73798} java.lang.Class
> (jdk.internal.constant.ConstantUtils::CD_Object_array)
> [1.153s][warning][cds,heap] [ 1] {0x0000000605959028}
> jdk.internal.constant.ArrayClassDescImpl
> [1.153s][warning][cds,heap] --- trace end ---
> [1.153s][warning][cds,heap]
> [1.154s][error  ][cds,heap] Scanned 65968 objects. Found 1 case(s) where
> an object points to a static field that may hold a different value at
> runtime.
> [1.154s][error  ][cds     ] An error has occurred while writing the shared
> archive file.
>
> I'm not really sure if this error means I cannot use the cache, but I
> manually removed the java/lang/invoke/MethodHandleImpl$BindCaller from the
> AOTCache. After that, I can create the cache and start my application.
>
>
>
> I still got this error and warning:
>
> [0.026s][error][cds] CDS archive has aot-linked classes. It cannot be used
> when archived full module graph is not used.
> [0.017s][warning][cds] shared class paths mismatch (hint: enable
> -Xlog:class+path=info to diagnose the failure)
>
>
>
> It seems like the cache isn't properly applied, and I don't see a lot of
> startup time improvement (Is there a way to properly measure the difference
> between a normal run, and cached run?) I did measure it with timing, and
> find that cached run seems to be around 2 seconds fastes (from 8 seconds
> startup to 6 seconds startup). The test jar that I used can be downloaded
> from GitHub:
>
> https://github.com/assimbly/gateway/releases/tag/5.1.0Beta
>
> I am creating the AOTCache properly? And how to mitigate such
> warnings/errors?
>
> Raymond
>
>
>
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