feat: upgrade to Java 25 and replace OrientDB with H2 #4095
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OrientDB is incompatible with Java 22+ due to removed sun.misc.Unsafe.ensureClassInitialized method. This commit: - Upgrades Java version from 21 to 25 - Replaces OrientDB 3.2.45 with H2 2.2.224 for config storage - Creates H2OrientDbServiceImpl with JSON document storage - Updates CI workflow for Java 25 - Updates Debian package dependencies The H2 implementation maintains the same OrientDbService interface and stores entities as JSON documents in a single 'documents' table.
GraalVM 21.x uses sun.misc.Unsafe.ensureClassInitialized which was removed in Java 22+. Updated to GraalVM 25.0.1 with new artifact coordinates: - org.graalvm.sdk:graal-sdk → org.graalvm.polyglot:polyglot - org.graalvm.js:js → org.graalvm.polyglot:js-community Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Remove DROP ALL OBJECTS from stop() to prevent data loss on restart - Add upgrade notes for Java 25 + H2 migration (v5.5) - Document two-step migration: export with Opal 5.4/Java 21, import with 5.5/Java 25
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- Add Maven wrapper (mvnw) for reproducible builds without pre-installed Maven - Update Makefile to use ./mvnw instead of system mvn - Add CLAUDE.md with project overview and development instructions - Update .gitignore for Claude Code local settings
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Summary
sun.misc.Unsafe.ensureClassInitializedmethodOrientDbServiceinterfacedocumentstableChanges
New files:
H2OrientDbServerFactory.java- H2 connection pool and schema initializationH2OrientDbServiceImpl.java- H2 implementation of OrientDbService with JSON document storageDeleted files:
OrientDbServiceImpl.java- OrientDB implementationLocalOrientDbServerFactory.java- OrientDB server factoryTimestampedHook.java- OrientDB hook for timestampsSimpleOrientDbQueryBuilder.java- OrientDB query builderorientdb-server-config.xml- OrientDB configurationModified:
pom.xmlfiles - Updated dependencies (removed OrientDB, added H2)ci.yml- Updated to Java 25debian/control- Updated Java dependency to openjdk-25Jira Ticket
N/A
Security Impact
Security notes: This change replaces the database implementation for configuration storage but maintains the same security model. No changes to authentication, authorization, or data handling logic.