Ich hab mir den LogWriter auf die Console ausgeben lassen.
DriverManager.setLogWriter(new PrintWriter(System.out));
funktioniert auch, aber warum hab ich da so ein Echo?
Da kommt fast alles doppelt an.

JdbcOdbcDriver class loaded
registerDriver: driver[className=sun.jdbc.odbc.JdbcOdbcDriver,sun.jdbc.od bc.JdbcOdbcDriver@2d95b3]
DriverManager.initialize: jdbc.drivers = null
JDBC DriverManager initialized
registerDriver: driver[className=com.ibm.as400.access.AS400JDBCDriver,AS/400 Toolbox for Java JDBC Driver]
DriverManager.getConnection("jdbc:as400://QZSOES01;user=ID#DB;password=pw;")
trying driver[className=sun.jdbc.odbc.JdbcOdbcDriver,sun.jdbc.od bc.JdbcOdbcDriver@2d95b3]
*Driver.connect (jdbc:as400://QZSOES01;user=ID#DB;password=pw
trying driver[className=com.ibm.as400.access.AS400JDBCDriver,AS/400 Toolbox for Java JDBC Driver]
as400: Properties (12366398) : access = "all".
as400: Properties (12366398) : access = "all".
as400: Properties (12366398) : block size = "32".
as400: Properties (12366398) : block size = "32".
as400: Properties (12366398) : block criteria = "2".
as400: Properties (12366398) : block criteria = "2".
as400: Properties (12366398) : date format = "".
as400: Properties (12366398) : date format = "".
as400: Properties (12366398) : date separator = "".
as400: Properties (12366398) : date separator = "".
as400: Properties (12366398) : decimal separator = "".
as400: Properties (12366398) : decimal separator = "".
as400: Properties (12366398) : errors = "basic".
as400: Properties (12366398) : errors = "basic".
as400: Properties (12366398) : extended dynamic = "false".
as400: Properties (12366398) : extended dynamic = "false".
as400: Properties (12366398) : libraries = "".
as400: Properties (12366398) : libraries = "".
as400: Properties (12366398) : naming = "sql".
as400: Properties (12366398) : naming = "sql".
as400: Properties (12366398) : package = "".
as400: Properties (12366398) : package = "".
as400: Properties (12366398) : package add = "true".
as400: Properties (12366398) : package add = "true".
as400: Properties (12366398) : package cache = "false".
as400: Properties (12366398) : package cache = "false".
as400: Properties (12366398) : package clear = "false".
as400: Properties (12366398) : package clear = "false".
as400: Properties (12366398) : package error = "warning".
as400: Properties (12366398) : package error = "warning".
as400: Properties (12366398) : package library = "".
as400: Properties (12366398) : package library = "".
as400: Properties (12366398) : password = "".
as400: Properties (12366398) : password = "".
as400: Properties (12366398) : prefetch = "true".
as400: Properties (12366398) : prefetch = "true".
as400: Properties (12366398) : prompt = "".
as400: Properties (12366398) : prompt = "".
as400: Properties (12366398) : remarks = "system".
as400: Properties (12366398) : remarks = "system".
as400: Properties (12366398) : sort = "hex".
as400: Properties (12366398) : sort = "hex".
as400: Properties (12366398) : sort language = "ENU".
as400: Properties (12366398) : sort language = "ENU".
as400: Properties (12366398) : sort table = "".
as400: Properties (12366398) : sort table = "".
as400: Properties (12366398) : sort weight = "shared".
as400: Properties (12366398) : sort weight = "shared".
as400: Properties (12366398) : time format = "".
as400: Properties (12366398) : time format = "".
as400: Properties (12366398) : time separator = "".
as400: Properties (12366398) : time separator = "".
as400: Properties (12366398) : trace = "false".
as400: Properties (12366398) : trace = "false".
as400: Properties (12366398) : transaction isolation = "read uncommitted".
as400: Properties (12366398) : transaction isolation = "read uncommitted".
as400: Properties (12366398) : translate binary = "false".
as400: Properties (12366398) : translate binary = "false".
as400: Properties (12366398) : user = "ID#DB".
as400: Properties (12366398) : user = "ID#DB".
as400: Properties (12366398) : package criteria = "default".
as400: Properties (12366398) : package criteria = "default".
as400: Properties (12366398) : lob threshold = "32768".
as400: Properties (12366398) : lob threshold = "32768".
as400: Properties (12366398) : secure = "false".
as400: Properties (12366398) : secure = "false".
as400: Properties (12366398) : data truncation = "true".
as400: Properties (12366398) : data truncation = "true".
as400: Properties (12366398) : proxy server = "".
as400: Properties (12366398) : proxy server = "".
as400: Properties (12366398) : secondary URL = "".
as400: Properties (12366398) : secondary URL = "".
as400: Properties (12366398) : data compression = "true".
as400: Properties (12366398) : data compression = "true".
as400: Properties (12366398) : big decimal = "true".
as400: Properties (12366398) : big decimal = "true".
as400: Properties (12366398) : thread used = "true".
as400: Properties (12366398) : thread used = "true".
as400: Properties (12366398) : cursor hold = "true".
as400: Properties (12366398) : cursor hold = "true".
as400: Properties (12366398) : lazy close = "false".
as400: Properties (12366398) : lazy close = "false".
as400: Properties (12366398) : driver = "toolbox".
as400: Properties (12366398) : driver = "toolbox".
as400: Properties (12366398) : bidi string type = "5".
as400: Properties (12366398) : bidi string type = "5".
as400: Properties (12366398) : key ring name = "".
as400: Properties (12366398) : key ring name = "".
as400: Properties (12366398) : key ring password = "".
as400: Properties (12366398) : key ring password = "".
as400: Properties (12366398) : full open = "false".
as400: Properties (12366398) : full open = "false".
as400: Properties (12366398) : server trace = "0".
as400: Properties (12366398) : server trace = "0".
as400: Properties (12366398) : database name = "".
as400: Properties (12366398) : database name = "".
as400: Properties (12366398) : extended metadata = "false".
as400: Properties (12366398) : extended metadata = "false".
as400: Properties (12366398) : cursor sensitivity = "asensitive".
as400: Properties (12366398) : cursor sensitivity = "asensitive".
as400: Properties (12366398) : behavior override = "0".
as400: Properties (12366398) : behavior override = "0".
as400: Properties (12366398) : package ccsid = "13488".
as400: Properties (12366398) : package ccsid = "13488".
as400: Properties (12366398) : minimum divide scale = "0".
as400: Properties (12366398) : minimum divide scale = "0".
as400: Properties (12366398) : maximum precision = "31".
as400: Properties (12366398) : maximum precision = "31".
as400: Properties (12366398) : maximum scale = "31".
as400: Properties (12366398) : maximum scale = "31".
as400: Properties (12366398) : translate hex = "character".
as400: Properties (12366398) : translate hex = "character".
as400: Properties (12366398) : toolbox trace = "".
as400: Properties (12366398) : toolbox trace = "".
as400: Properties (12366398) : qaqqinilib = "".
as400: Properties (12366398) : qaqqinilib = "".
as400: Properties (12366398) : login timeout = "".
as400: Properties (12366398) : login timeout = "".
as400: Properties (12366398) : true autocommit = "false".
as400: Properties (12366398) : true autocommit = "false".
as400: Properties (12366398) : bidi implicit reordering = "true".
as400: Properties (12366398) : bidi implicit reordering = "true".
as400: Properties (12366398) : bidi numeric ordering = "false".
as400: Properties (12366398) : bidi numeric ordering = "false".
as400: Properties (12366398) : hold input locators = "true".
as400: Properties (12366398) : hold input locators = "true".
as400: Properties (12366398) : hold statements = "false".
as400: Properties (12366398) : hold statements = "false".
as400: Properties (12366398) : rollback cursor hold = "false".
as400: Properties (12366398) : rollback cursor hold = "false".
as400: Properties (12366398) : variable field compression = "true".
as400: Properties (12366398) : variable field compression = "true".
as400: Properties (12366398) : query optimize goal = "0".
as400: Properties (12366398) : query optimize goal = "0".
as400: Properties (12366398) : keep alive = "".
as400: Properties (12366398) : keep alive = "".
as400: Properties (12366398) : receive buffer size = "".
as400: Properties (12366398) : receive buffer size = "".
as400: Properties (12366398) : send buffer size = "".
as400: Properties (12366398) : send buffer size = "".
as400: Properties (12366398) : XA loosely coupled support = "0".
as400: Properties (12366398) : XA loosely coupled support = "0".
as400: Properties (12366398) : translate boolean = "true".
as400: Properties (12366398) : translate boolean = "true".
as400: Properties (12366398) : metadata source = "-1".
as400: Properties (12366398) : metadata source = "-1".
as400: Properties (12366398) : query storage limit = "-1".
as400: Properties (12366398) : query storage limit = "-1".
as400: Properties (12366398) : decfloat rounding mode = "half even".
as400: Properties (12366398) : decfloat rounding mode = "half even".
as400: Properties (12366398) : autocommit exception = "false".
as400: Properties (12366398) : autocommit exception = "false".
as400: Properties (12366398) : auto commit = "true".
as400: Properties (12366398) : auto commit = "true".
as400: Properties (12366398) : ignore warnings = "".
as400: Properties (12366398) : ignore warnings = "".
as400: Properties (12366398) : secure current user = "true".
as400: Properties (12366398) : secure current user = "true".
as400: Properties (12366398) : concurrent access resolution = "0".
as400: Properties (12366398) : concurrent access resolution = "0".
as400: Properties (12366398) : jvm16 synchronize = "true".
as400: Properties (12366398) : jvm16 synchronize = "true".
as400: Properties (12366398) : socket timeout = "".
as400: Properties (12366398) : socket timeout = "".
as400: Properties (12366398) : use block update = "false".
as400: Properties (12366398) : use block update = "false".
as400: Properties (12366398) : maximum blocked input rows = "32000".
as400: Properties (12366398) : maximum blocked input rows = "32000".
as400: Driver AS/400 Toolbox for Java JDBC Driver (22897006) : Using IBM Toolbox for Java JDBC driver implementation.
as400: Driver AS/400 Toolbox for Java JDBC Driver (22897006) : Using IBM Toolbox for Java JDBC driver implementation.
as400: Properties (12366398) : metadata source = "0".
as400: Properties (12366398) : metadata source = "0".
as400: Toolbox for Java - Open Source Software, JTOpen 7.1, codebase 5770-SS1 V7R1M0.02
as400: Toolbox for Java - Open Source Software, JTOpen 7.1, codebase 5770-SS1 V7R1M0.02
as400: JDBC Level: 40
as400: JDBC Level: 40
as400: Properties (12366398) : package ccsid = "13488".
as400: Properties (12366398) : package ccsid = "13488".
as400: Connection QZSOES01 (6371135) : Client CCSID = 13488.
as400: Connection QZSOES01 (6371135) : Client CCSID = 13488.
as400: Connection QZSOES01 (6371135) : Setting server NLV = 2929.
as400: Connection QZSOES01 (6371135) : Setting server NLV = 2929.
as400: Connection QZSOES01 (6371135) : Client functional level = V7R1M01 .
as400: Connection QZSOES01 (6371135) : Client functional level = V7R1M01 .
as400: Connection QZSOES01 (6371135) : Data compression = RLE.
as400: Connection QZSOES01 (6371135) : Data compression = RLE.
as400: Connection QZSOES01 (6371135) : ROWID supported = true.
as400: Connection QZSOES01 (6371135) : ROWID supported = true.
as400: Connection QZSOES01 (6371135) : True auto-commit supported = true.
as400: Connection QZSOES01 (6371135) : True auto-commit supported = true.
as400: Connection QZSOES01 (6371135) : 128 byte column names supported = true.
as400: Connection QZSOES01 (6371135) : 128 byte column names supported = true.
as400: Connection QZSOES01 (6371135) : Maximum decimal precision = 31.
as400: Connection QZSOES01 (6371135) : Maximum decimal precision = 31.
as400: Connection QZSOES01 (6371135) : Maximum decimal scale = 31.
as400: Connection QZSOES01 (6371135) : Maximum decimal scale = 31.
as400: Connection QZSOES01 (6371135) : Minimum divide scale = 0.
as400: Connection QZSOES01 (6371135) : Minimum divide scale = 0.
as400: Connection QZSOES01 (6371135) : Translate hex = character.
as400: Connection QZSOES01 (6371135) : Translate hex = character.
as400: Connection QZSOES01 (6371135) : query optimize goal = 0.
as400: Connection QZSOES01 (6371135) : query optimize goal = 0.
as400: Connection QZSOES01 (6371135) : query storage limit = -1.
as400: Connection QZSOES01 (6371135) : query storage limit = -1.
as400: Connection QZSOES01 (6371135) : Using extended datastreams.
as400: Connection QZSOES01 (6371135) : Using extended datastreams.
as400: Connection QZSOES01 (6371135) : JDBC driver major version = 9.
as400: Connection QZSOES01 (6371135) : JDBC driver major version = 9.
as400: Connection QZSOES01 (6371135) : IBM i VRM = V6R1M0.
as400: Connection QZSOES01 (6371135) : IBM i VRM = V6R1M0.
as400: Connection QZSOES01 (6371135) : Server CCSID = 273.
as400: Connection QZSOES01 (6371135) : Server CCSID = 273.
as400: Connection QZSOES01 (6371135) : Server functional level = V6R1M00014 (14).
as400: Connection QZSOES01 (6371135) : Server functional level = V6R1M00014 (14).
as400: Connection QZSOES01 (6371135) : Server job identifier = 296619/QUSER/QZDASOINIT.
as400: Connection QZSOES01 (6371135) : Server job identifier = 296619/QUSER/QZDASOINIT.
as400: Properties (12366398) : decimal separator = ".".
as400: Properties (12366398) : decimal separator = ".".
as400: Properties (12366398) : date format = "dmy".
as400: Properties (12366398) : date format = "dmy".
as400: Properties (12366398) : date separator = ".".
as400: Properties (12366398) : date separator = ".".
as400: Properties (12366398) : time format = "hms".
as400: Properties (12366398) : time format = "hms".
as400: Properties (12366398) : time separator = ":".
as400: Properties (12366398) : time separator = ":".
as400: Connection B60714DD (6371135) open.
as400: Connection B60714DD (6371135) open.
as400: Connection B60714DD (6371135) : Auto commit = "true".
as400: Connection B60714DD (6371135) : Auto commit = "true".
as400: Connection B60714DD (6371135) : Read only = "false".
as400: Connection B60714DD (6371135) : Read only = "false".
as400: Connection B60714DD (6371135) : Transaction isolation = "1".
as400: Connection B60714DD (6371135) : Transaction isolation = "1".
getConnection returning driver[className=com.ibm.as400.access.AS400JDBCDriver,AS/400 Toolbox for Java JDBC Driver]
as400: Statement STMT0001 (25849454) open. Parent: Connection B60714DD (6371135) .
as400: Statement STMT0001 (25849454) open. Parent: Connection B60714DD (6371135) .
as400: Statement STMT0001 (25849454) : Escape processing = "true".
as400: Statement STMT0001 (25849454) : Escape processing = "true".
as400: Statement STMT0001 (25849454) : Fetch direction = "1000".
as400: Statement STMT0001 (25849454) : Fetch direction = "1000".
as400: Statement STMT0001 (25849454) : Fetch size = "0".
as400: Statement STMT0001 (25849454) : Fetch size = "0".
as400: Statement STMT0001 (25849454) : Max field size = "0".
as400: Statement STMT0001 (25849454) : Max field size = "0".
as400: Statement STMT0001 (25849454) : Max rows = "0".
as400: Statement STMT0001 (25849454) : Max rows = "0".
as400: Statement STMT0001 (25849454) : Query timeout = "0".
as400: Statement STMT0001 (25849454) : Query timeout = "0".
as400: Statement STMT0001 (25849454) : Result set concurrency = "1007".
as400: Statement STMT0001 (25849454) : Result set concurrency = "1007".
as400: Statement STMT0001 (25849454) : Result set holdability = "1".
as400: Statement STMT0001 (25849454) : Result set holdability = "1".
as400: Statement STMT0001 (25849454) : Result set type = "1003".
as400: Statement STMT0001 (25849454) : Result set type = "1003".
as400: Statement STMT0001 (25849454) : Behavior Override = "0".
as400: Statement STMT0001 (25849454) : Behavior Override = "0".
as400: Statement STMT0001 (25849454) : Data to correlate statement with cursor Cursor CRSR0001 (22552192) .
as400: Statement STMT0001 (25849454) : Data to correlate statement with cursor Cursor CRSR0001 (22552192) .
as400: Statement STMT0001 (25849454) : Executing query, SQL Statement -->[SELECT LOCATION FROM QSYS2.SYSCATALOGS WHERE RDBTYPE = 'LOCAL' AND RDBASPSTAT='AVAILABLE'].
as400: Statement STMT0001 (25849454) : Executing query, SQL Statement -->[SELECT LOCATION FROM QSYS2.SYSCATALOGS WHERE RDBTYPE = 'LOCAL' AND RDBASPSTAT='AVAILABLE'].
as400: Statement STMT0001 (25849454) : Prepared STMT0001*, SQL Statement -->[SELECT LOCATION FROM QSYS2.SYSCATALOGS WHERE RDBTYPE = 'LOCAL' AND RDBASPSTAT='AVAILABLE'].
as400: Statement STMT0001 (25849454) : Prepared STMT0001*, SQL Statement -->[SELECT LOCATION FROM QSYS2.SYSCATALOGS WHERE RDBTYPE = 'LOCAL' AND RDBASPSTAT='AVAILABLE'].
as400: Cursor CRSR0001 (22552192) open.
as400: Cursor CRSR0001 (22552192) open.
as400: Cursor CRSR0001 (22552192) closed.
as400: Cursor CRSR0001 (22552192) closed.