What steps will reproduce the problem?

I'm trying to use SQLiteJDBC in multiple threads and get next exception: java.lang.NullPointerException

I've created a small test file to reproduce the problem: see attached

What is the expected output? What do you see instead? I expect that no NullPointerException will be thrown, but it is: java.lang.NullPointerException at org.ibex.nestedvm.UnixRuntime.sys_fcntl_lock(UnixRuntime.java:807) at org.ibex.nestedvm.UnixRuntime._syscall(UnixRuntime.java:159) at org.ibex.nestedvm.Runtime.syscall(Runtime.java:1074) at org.sqlite.SQLite.run_0x171800(target/build/SQLite.mips) at org.sqlite.SQLite.trampoline(target/build/SQLite.mips) at org.sqlite.SQLite._execute(target/build/SQLite.mips) at org.ibex.nestedvm.Runtime.__execute(Runtime.java:506) at org.ibex.nestedvm.Runtime.call(Runtime.java:678) at org.ibex.nestedvm.Runtime.call(Runtime.java:647) at org.sqlite.NestedDB.call(NestedDB.java:568) at org.sqlite.NestedDB.call(NestedDB.java:563) at org.sqlite.NestedDB.prepare(NestedDB.java:130) at org.sqlite.DB.prepare(DB.java:123) at org.sqlite.Stmt.executeQuery(Stmt.java:121) at SQliteJDBSTest$1.run(SQliteJDBSTest.java:23) at java.lang.Thread.run(Unknown Source)

What version of the product are you using? On what operating system? 3.7.2 on Win7_64

Please provide any additional information below.

test1.db is SQlite3 db, which has table Map with several text fields

It could be reproduced in java1.5 only - with java1.6 I've got exception: Caused by: java.sql.SQLException: [SQLITE_BUSY] The database file is locked (database is locked) at org.sqlite.DB.newSQLException(DB.java:383) at org.sqlite.DB.newSQLException(DB.java:387) at org.sqlite.DB.throwex(DB.java:374) at org.sqlite.NestedDB.prepare(NestedDB.java:134) at org.sqlite.DB.prepare(DB.java:123) at org.sqlite.Stmt.executeQuery(Stmt.java:121)

It's database I'm using.