Hi.
We are experiencing occasional errors with this stack trace:
Caused by: org.h2.jdbc.JdbcSQLException: General error:
"java.lang.NullPointerException" [50000-189]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
at org.h2.message.DbException.get(DbException.java:168)
at org.h2.message.DbException.convert(DbException.java:295)
at org.h2.engine.Database.openDatabase(Database.java:300)
at org.h2.engine.Database.<init>(Database.java:263)
at org.h2.engine.Engine.openSession(Engine.java:65)
at org.h2.engine.Engine.openSession(Engine.java:175)
at org.h2.engine.Engine.createSessionAndValidate(Engine.java:153)
at org.h2.engine.Engine.createSession(Engine.java:136)
at org.h2.engine.Engine.createSession(Engine.java:28)
at
org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:349)
at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:107)
at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:91)
at org.h2.Driver.connect(Driver.java:72)
at
org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
at
org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582)
at
org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1556)
at
org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1545)
... 68 more
Caused by: java.lang.NullPointerException
at java.nio.ByteBuffer.wrap(Unknown Source)
at org.h2.mvstore.StreamStore.getMaxBlockKey(StreamStore.java:249)
at org.h2.mvstore.StreamStore.getMaxBlockKey(StreamStore.java:269)
at org.h2.store.LobStorageMap.init(LobStorageMap.java:114)
at org.h2.engine.Database.open(Database.java:767)
at org.h2.engine.Database.openDatabase(Database.java:269)
... 82 more
I have attached a debugger and looked around in getMaxBlockKey():
public long getMaxBlockKey(byte[] id) {
long maxKey = -1;
ByteBuffer idBuffer = ByteBuffer.wrap(id);
while (idBuffer.hasRemaining()) {
switch (idBuffer.get()) {
case 0:
// in-place: 0, len (int), data
int len = DataUtils.readVarInt(idBuffer);
idBuffer.position(idBuffer.position() + len);
break;
case 1:
// block: 1, len (int), blockId (long)
DataUtils.readVarInt(idBuffer);
long k = DataUtils.readVarLong(idBuffer);
maxKey = Math.max(maxKey, k);
break;
case 2:
// indirect: 2, total len (long), blockId (long)
DataUtils.readVarLong(idBuffer);
long k2 = DataUtils.readVarLong(idBuffer);
// recurse
byte[] r = map.get(k2);
maxKey = Math.max(maxKey, getMaxBlockKey(r));
break;
default:
throw DataUtils.newIllegalArgumentException(
"Unsupported id {0}", Arrays.toString(id));
}
}
return maxKey;
}
It appears that the id argument is null in the recursive call from the case
2 branch.
Is this a known issue? Should I report elsewhere than this group?
--
VH
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