android Duplicate class org.bouncycastle

**Describe the bug**
A clear and concise description of what the bug is.
Duplicate class org.bouncycastle.x509.X509V2CRLGenerator$ExtCRLException
**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**
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**Desktop (please complete the following information):**
- OS: [e.g. Android]
-

**Additional context**
Add any other context about the problem here.

Start by reproducing the Android build failure and tracing which dependencies provide org.bouncycastle.x509.X509V2CRLGenerator$ExtCRLException. The issue supplies no project files or reproducible steps, so first collect the missing environment and dependency details. Done means the duplicate-class error no longer occurs in the reported build.

Written by the indexing model from the issue text.