| Issue | Likely cause | Fix | |-------|--------------|-----| | “ClassNotFoundException” | Missing JAR in full classpath | Set CLASSPATH environment variable before running | | Hang at startup | Full mode waiting for a lock | Delete .lock files in the temp directory | | Log grows too fast | DEBUG level on high-frequency operations | Switch to full -level INFO (if supported) |

: This term isn't commonly associated with a major Java framework but could relate to architectural patterns or best practices in Java.