Current version of Spin is incompatible with Java 16.
I'm aware that Camunda BPM only supports up to Java 14 acording to the Release announcements, but I'm raising it as it may take a while to fix to resolve.
This normally (when using Spin) appeared on startup in all java version from 11 to 15
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by spinjar.com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/[snip]/.m2/repository/org/camunda/spin/camunda-spin-dataformat-all/1.10.0/camunda-spin-dataformat-all-1.10.0.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of spinjar.com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
The vague threat on the last line (that we'd all kinda got used to seeing and ignoring has apparently been realised)
And in Java 16 you now get
Caused by: java.lang.ExceptionInInitializerError
at spinjar.com.sun.xml.bind.v2.runtime.reflect.opt.AccessorInjector.prepare(AccessorInjector.java:83)
at spinjar.com.sun.xml.bind.v2.runtime.reflect.opt.OptimizedAccessorFactory.get(OptimizedAccessorFactory.java:125)
at spinjar.com.sun.xml.bind.v2.runtime.reflect.Accessor$GetterSetterReflection.optimize(Accessor.java:399)
at spinjar.com.sun.xml.bind.v2.runtime.property.SingleElementLeafProperty.<init>(SingleElementLeafProperty.java:87)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:78)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
at spinjar.com.sun.xml.bind.v2.runtime.property.PropertyFactory.create(PropertyFactory.java:128)
at spinjar.com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.<init>(ClassBeanInfoImpl.java:181)
at spinjar.com.sun.xml.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:509)
at spinjar.com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.<init>(ClassBeanInfoImpl.java:168)
at spinjar.com.sun.xml.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:509)
at spinjar.com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.<init>(ClassBeanInfoImpl.java:168)
at spinjar.com.sun.xml.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:509)
at spinjar.com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:326)
at spinjar.com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:141)
at spinjar.com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1157)
...
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @4de4b452
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199)
at java.base/java.lang.reflect.Method.setAccessible(Method.java:193)
at spinjar.com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1.run(Injector.java:177)
at spinjar.com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1.run(Injector.java:174)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:312)
at spinjar.com.sun.xml.bind.v2.runtime.reflect.opt.Injector.<clinit>(Injector.java:172)
... 176 more
Test with
% java --version
openjdk 16 2021-03-16
OpenJDK Runtime Environment (build 16+36-2231)
OpenJDK 64-Bit Server VM (build 16+36-2231, mixed mode, sharing)
Bug Report
L3 - Default
Hi Stexxen,
Thank you for bringing this to our attention.
You are correct, at the moment we support only up to Java 14 (docs).
Would it be possible to share a minimal example that reproduces the issue, that way it will be easier for us to continue further with the analyses?
Best regards,
Yana