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    Check if you're not creating unused SQL entities, as it might cause this exception.

Solutions on the web

via userecho.com by Unknown author, 1 year ago
Database may be already in use: "Locked by another process". Possible solutions: close all other connection(s); use the server mode [90020-187]
via sourceforge.net by Unknown author, 1 year ago
Database may be already in use: "Locked by another process". Possible solutions: close all other connection(s); use the server mode
via narkive.com by Unknown author, 1 year ago
Datenbank wird wahrscheinlich bereits benutzt: "Locked by another process". Mögliche Lösungen: alle Verbindungen schliessen; Server Modus verwenden Database may be already in use: "Locked by another process". Possible solutions: close all other connection(s); use the server mode; SQL statement: null/13d1bdd8398de77040ba0597a2bb915534674ffe6ee [90020-147]
via gmane.org by Unknown author, 2 years ago
Database may be already in use: "Locked by another process". Possible solutions: close all other connection(s); use the server mode [90020-173]
via git.net by Unknown author, 2 years ago
Database may be already in use: "Locked by another process". Possible solutions: close all other connection(s); use the server mode [90020-173]
via Google Groups by Samuel Wang, 2 years ago
Database may be already in use: "Locked by another process". Possible solutions: close all other connection(s); use the server mode [90020-173]
org.h2.jdbc.JdbcSQLException: Database may be already in use: "Locked by another process". Possible solutions: close all other connection(s); use the server mode [90020-187]	at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)	at org.h2.message.DbException.get(DbException.java:179)	at org.h2.message.DbException.get(DbException.java:155)	at org.h2.store.FileLock.getExceptionAlreadyInUse(FileLock.java:461)	at org.h2.store.FileLock.lockFile(FileLock.java:355)	at org.h2.store.FileLock.lock(FileLock.java:135)	at org.h2.engine.Database.open(Database.java:634)	at org.h2.engine.Database.openDatabase(Database.java:266)	at org.h2.engine.Database.(Database.java:260)	at org.h2.engine.Engine.openSession(Engine.java:60)	at org.h2.engine.Engine.openSession(Engine.java:167)	at org.h2.engine.Engine.createSessionAndValidate(Engine.java:145)	at org.h2.engine.Engine.createSession(Engine.java:128)	at org.h2.engine.Engine.createSession(Engine.java:26)	at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:347)	at org.h2.jdbc.JdbcConnection.(JdbcConnection.java:108)	at org.h2.jdbc.JdbcConnection.(JdbcConnection.java:92)	at org.h2.Driver.connect(Driver.java:72)	at org.h2.jdbcx.JdbcDataSource.getJdbcConnection(JdbcDataSource.java:190)	at org.h2.jdbcx.JdbcDataSource.getXAConnection(JdbcDataSource.java:353)	at org.h2.jdbcx.JdbcDataSource.getPooledConnection(JdbcDataSource.java:385)	at org.h2.jdbcx.JdbcConnectionPool.getConnectionNow(JdbcConnectionPool.java:227)	at org.h2.jdbcx.JdbcConnectionPool.getConnection(JdbcConnectionPool.java:199)	at com.ubooquity.data.database.b.e(SourceFile:610)	at com.ubooquity.data.database.c.(SourceFile:57)	at com.ubooquity.Ubooquity.main(SourceFile:258)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at com.ubooquity.e.c.a(SourceFile:823)	at com.ubooquity.Launcher.main(SourceFile:10)