Crash on Android: IncompatibleClassChangeError in FunctionExpand when calling integrate(sin(x^2))

[Mohsin0855]

Hi, I’m using Symja in an Android project and encountering a crash when trying to evaluate:
integrate(sin(x^2))

Simpler integrals like integrate(sin(x)) work fine, but with sin(x^2) the app crashes.

Crash log excerpt:
java.lang.IncompatibleClassChangeError: Class 'com.google.common.base.Suppliers$NonSerializableMemoizingSupplier'
does not implement interface 'java.util.function.Supplier'
at org.matheclipse.core.reflection.system.FunctionExpand.getMatcher(FunctionExpand.java:599)
Details about my setup:

• I have implemented Symja using the provided modules in my Android project (added them at the module level)
• Other expressions evaluate correctly. The crash only occurs on certain advanced integrals like integrate(sin(x^2)).

From my debugging, it looks like a Guava version conflict:

• On Android, com.google.common.base.Suppliers comes from the runtime (older Guava version).
• But FunctionExpand seems to expect a newer version where Suppliers.NonSerializableMemoizingSupplier implements java.util.function.Supplier.

Questions:

1. Is this a known issue with Guava on Android?
2. Should we explicitly exclude Guava from Symja and instead use a newer com.google.guava:guava-android dependency?
3. What’s the recommended fix or workaround to make integrate(sin(x^2)) work on Android without crashes?