[jira] [Issue Comment Deleted] (DERBY-5411) Client that does not have Security manager permission to connect gets "ERROR 08006: Insufficient data while reading from the network" Message should be clea
[ https://issues.apache.org/jira/browse/DERBY-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kavin Ranawella updated DERBY-5411: --- Comment: was deleted (was: Can you please explain the steps that were followed to get the resulting errors? And the running of the .sh is not clear.) > Client that does not have Security manager permission to connect gets "ERROR > 08006: Insufficient data while reading from the network" Message should be > clearer > --- > > Key: DERBY-5411 > URL: https://issues.apache.org/jira/browse/DERBY-5411 > Project: Derby > Issue Type: Bug > Components: Network Client >Affects Versions: 10.8.2.2 >Reporter: Kathey Marsden >Priority: Minor > Labels: derby_triage10_9 > > I was doing a little remote testing for the release candidate and noticed if > a machine does not have permission to connect, then the client shows the > following exception: > ij> connect 'jdbc:derby://x.xx.xxx.xx:1527/wombat'; > ERROR 08006: Insufficient data while reading from the network - expected a > minimum of 6 bytes and received only 0 bytes. The connection has been term > inated. > java.sql.SQLNonTransientConnectionException: Insufficient data while reading > from the network - expected a minimum of 6 bytes and received only 0 byte > s. The connection has been terminated. > at > org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown > Source) > at org.apache.derby.client.am.SqlException.getSQLException(Unknown > Source) > at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source) > at java.sql.DriverManager.getConnection(DriverManager.java:322) > at java.sql.DriverManager.getConnection(DriverManager.java:297) > at org.apache.derby.impl.tools.ij.ij.dynamicConnection(Unknown Source) > at org.apache.derby.impl.tools.ij.ij.ConnectStatement(Unknown Source) > at org.apache.derby.impl.tools.ij.ij.ijStatement(Unknown Source) > at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown > Source) > at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.go(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.main(Unknown Source) > at org.apache.derby.tools.ij.main(Unknown Source) > Caused by: org.apache.derby.client.am.DisconnectException: Insufficient data > while reading from the network - expected a minimum of 6 bytes and receiv > ed only 0 bytes. The connection has been terminated. > at org.apache.derby.client.net.Reply.fill(Unknown Source) > at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Unknown > Source) > at org.apache.derby.client.net.Reply.readDssHeader(Unknown Source) > at org.apache.derby.client.net.Reply.startSameIdChainParse(Unknown > Source) > at > org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(Unknown Source) > at org.apache.derby.client.net.NetConnection.flowConnect(Unknown > Source) > at org.apache.derby.client.net.NetConnection.(Unknown Source) > at org.apache.derby.client.net.NetConnection40.(Unknown Source) > at > org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown > Source) > ... 12 more > It would be good to have a clearer error message: > To Reproduce, use the script and policy file below changing the url for > derby.codejars to the correct path for your enviroment also in the policy > file my.policy exchange x.x.x.x with the permitted host and y.y.y.y with the > disallowed host. Then try to connect from the disllowed host with connect > 'jdbc:derby://x.x.x.x:1527/wombat'; > Script startServer.sh: > java -Djava.security.manager > -Dderby.codejars="file:c:/cygwin/home/kmarsden/projects/10.8.2testing/db-derby-10.8.2.1-lib/lib/" > -Djava.security.policy=my.policy org.apache.derby.drda.NetworkServerControl > start -h 0.0.0.0 > Policy File my.policy (change x.
[jira] [Assigned] (DERBY-5411) Client that does not have Security manager permission to connect gets "ERROR 08006: Insufficient data while reading from the network" Message should be clearer
[ https://issues.apache.org/jira/browse/DERBY-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kavin Ranawella reassigned DERBY-5411: -- Assignee: (was: Kavin Ranawella) > Client that does not have Security manager permission to connect gets "ERROR > 08006: Insufficient data while reading from the network" Message should be > clearer > --- > > Key: DERBY-5411 > URL: https://issues.apache.org/jira/browse/DERBY-5411 > Project: Derby > Issue Type: Bug > Components: Network Client >Affects Versions: 10.8.2.2 >Reporter: Kathey Marsden >Priority: Minor > Labels: derby_triage10_9 > > I was doing a little remote testing for the release candidate and noticed if > a machine does not have permission to connect, then the client shows the > following exception: > ij> connect 'jdbc:derby://x.xx.xxx.xx:1527/wombat'; > ERROR 08006: Insufficient data while reading from the network - expected a > minimum of 6 bytes and received only 0 bytes. The connection has been term > inated. > java.sql.SQLNonTransientConnectionException: Insufficient data while reading > from the network - expected a minimum of 6 bytes and received only 0 byte > s. The connection has been terminated. > at > org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown > Source) > at org.apache.derby.client.am.SqlException.getSQLException(Unknown > Source) > at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source) > at java.sql.DriverManager.getConnection(DriverManager.java:322) > at java.sql.DriverManager.getConnection(DriverManager.java:297) > at org.apache.derby.impl.tools.ij.ij.dynamicConnection(Unknown Source) > at org.apache.derby.impl.tools.ij.ij.ConnectStatement(Unknown Source) > at org.apache.derby.impl.tools.ij.ij.ijStatement(Unknown Source) > at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown > Source) > at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.go(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.main(Unknown Source) > at org.apache.derby.tools.ij.main(Unknown Source) > Caused by: org.apache.derby.client.am.DisconnectException: Insufficient data > while reading from the network - expected a minimum of 6 bytes and receiv > ed only 0 bytes. The connection has been terminated. > at org.apache.derby.client.net.Reply.fill(Unknown Source) > at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Unknown > Source) > at org.apache.derby.client.net.Reply.readDssHeader(Unknown Source) > at org.apache.derby.client.net.Reply.startSameIdChainParse(Unknown > Source) > at > org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(Unknown Source) > at org.apache.derby.client.net.NetConnection.flowConnect(Unknown > Source) > at org.apache.derby.client.net.NetConnection.(Unknown Source) > at org.apache.derby.client.net.NetConnection40.(Unknown Source) > at > org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown > Source) > ... 12 more > It would be good to have a clearer error message: > To Reproduce, use the script and policy file below changing the url for > derby.codejars to the correct path for your enviroment also in the policy > file my.policy exchange x.x.x.x with the permitted host and y.y.y.y with the > disallowed host. Then try to connect from the disllowed host with connect > 'jdbc:derby://x.x.x.x:1527/wombat'; > Script startServer.sh: > java -Djava.security.manager > -Dderby.codejars="file:c:/cygwin/home/kmarsden/projects/10.8.2testing/db-derby-10.8.2.1-lib/lib/" > -Djava.security.policy=my.policy org.apache.derby.drda.NetworkServerControl > start -h 0.0.0.0 > Policy File my.policy (change x.x.x.x and y.y.y.y) to the allowed and > disallowed host respectively. )Since the y.y.y.y li
[jira] [Commented] (DERBY-5411) Client that does not have Security manager permission to connect gets "ERROR 08006: Insufficient data while reading from the network" Message should be clearer
[ https://issues.apache.org/jira/browse/DERBY-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16180070#comment-16180070 ] Kavin Ranawella commented on DERBY-5411: Can you please explain the steps that were followed to get the resulting errors? And the running of the .sh is not clear. > Client that does not have Security manager permission to connect gets "ERROR > 08006: Insufficient data while reading from the network" Message should be > clearer > --- > > Key: DERBY-5411 > URL: https://issues.apache.org/jira/browse/DERBY-5411 > Project: Derby > Issue Type: Bug > Components: Network Client >Affects Versions: 10.8.2.2 >Reporter: Kathey Marsden >Assignee: Kavin Ranawella >Priority: Minor > Labels: derby_triage10_9 > > I was doing a little remote testing for the release candidate and noticed if > a machine does not have permission to connect, then the client shows the > following exception: > ij> connect 'jdbc:derby://x.xx.xxx.xx:1527/wombat'; > ERROR 08006: Insufficient data while reading from the network - expected a > minimum of 6 bytes and received only 0 bytes. The connection has been term > inated. > java.sql.SQLNonTransientConnectionException: Insufficient data while reading > from the network - expected a minimum of 6 bytes and received only 0 byte > s. The connection has been terminated. > at > org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown > Source) > at org.apache.derby.client.am.SqlException.getSQLException(Unknown > Source) > at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source) > at java.sql.DriverManager.getConnection(DriverManager.java:322) > at java.sql.DriverManager.getConnection(DriverManager.java:297) > at org.apache.derby.impl.tools.ij.ij.dynamicConnection(Unknown Source) > at org.apache.derby.impl.tools.ij.ij.ConnectStatement(Unknown Source) > at org.apache.derby.impl.tools.ij.ij.ijStatement(Unknown Source) > at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown > Source) > at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.go(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.main(Unknown Source) > at org.apache.derby.tools.ij.main(Unknown Source) > Caused by: org.apache.derby.client.am.DisconnectException: Insufficient data > while reading from the network - expected a minimum of 6 bytes and receiv > ed only 0 bytes. The connection has been terminated. > at org.apache.derby.client.net.Reply.fill(Unknown Source) > at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Unknown > Source) > at org.apache.derby.client.net.Reply.readDssHeader(Unknown Source) > at org.apache.derby.client.net.Reply.startSameIdChainParse(Unknown > Source) > at > org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(Unknown Source) > at org.apache.derby.client.net.NetConnection.flowConnect(Unknown > Source) > at org.apache.derby.client.net.NetConnection.(Unknown Source) > at org.apache.derby.client.net.NetConnection40.(Unknown Source) > at > org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown > Source) > ... 12 more > It would be good to have a clearer error message: > To Reproduce, use the script and policy file below changing the url for > derby.codejars to the correct path for your enviroment also in the policy > file my.policy exchange x.x.x.x with the permitted host and y.y.y.y with the > disallowed host. Then try to connect from the disllowed host with connect > 'jdbc:derby://x.x.x.x:1527/wombat'; > Script startServer.sh: > java -Djava.security.manager > -Dderby.codejars="file:c:/cygwin/home/kmarsden/projects/10.8.2testing/db-derby-10.8.2.1-lib/lib/" > -Djava.security.policy=my.policy org.apache.derby.drda.NetworkServerCont
DERBY-5411
Can you please explain the steps that were followed to get the resulting errors? And the running of the .sh is not clear. -- Kavin
[jira] [Assigned] (DERBY-5411) Client that does not have Security manager permission to connect gets "ERROR 08006: Insufficient data while reading from the network" Message should be clearer
[ https://issues.apache.org/jira/browse/DERBY-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Bryan Pendleton reassigned DERBY-5411: -- Assignee: Kavin Ranawella > Client that does not have Security manager permission to connect gets "ERROR > 08006: Insufficient data while reading from the network" Message should be > clearer > --- > > Key: DERBY-5411 > URL: https://issues.apache.org/jira/browse/DERBY-5411 > Project: Derby > Issue Type: Bug > Components: Network Client >Affects Versions: 10.8.2.2 >Reporter: Kathey Marsden >Assignee: Kavin Ranawella >Priority: Minor > Labels: derby_triage10_9 > > I was doing a little remote testing for the release candidate and noticed if > a machine does not have permission to connect, then the client shows the > following exception: > ij> connect 'jdbc:derby://x.xx.xxx.xx:1527/wombat'; > ERROR 08006: Insufficient data while reading from the network - expected a > minimum of 6 bytes and received only 0 bytes. The connection has been term > inated. > java.sql.SQLNonTransientConnectionException: Insufficient data while reading > from the network - expected a minimum of 6 bytes and received only 0 byte > s. The connection has been terminated. > at > org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown > Source) > at org.apache.derby.client.am.SqlException.getSQLException(Unknown > Source) > at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source) > at java.sql.DriverManager.getConnection(DriverManager.java:322) > at java.sql.DriverManager.getConnection(DriverManager.java:297) > at org.apache.derby.impl.tools.ij.ij.dynamicConnection(Unknown Source) > at org.apache.derby.impl.tools.ij.ij.ConnectStatement(Unknown Source) > at org.apache.derby.impl.tools.ij.ij.ijStatement(Unknown Source) > at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown > Source) > at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.go(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.main(Unknown Source) > at org.apache.derby.tools.ij.main(Unknown Source) > Caused by: org.apache.derby.client.am.DisconnectException: Insufficient data > while reading from the network - expected a minimum of 6 bytes and receiv > ed only 0 bytes. The connection has been terminated. > at org.apache.derby.client.net.Reply.fill(Unknown Source) > at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Unknown > Source) > at org.apache.derby.client.net.Reply.readDssHeader(Unknown Source) > at org.apache.derby.client.net.Reply.startSameIdChainParse(Unknown > Source) > at > org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(Unknown > Source) > at > org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(Unknown Source) > at org.apache.derby.client.net.NetConnection.flowConnect(Unknown > Source) > at org.apache.derby.client.net.NetConnection.(Unknown Source) > at org.apache.derby.client.net.NetConnection40.(Unknown Source) > at > org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown > Source) > ... 12 more > It would be good to have a clearer error message: > To Reproduce, use the script and policy file below changing the url for > derby.codejars to the correct path for your enviroment also in the policy > file my.policy exchange x.x.x.x with the permitted host and y.y.y.y with the > disallowed host. Then try to connect from the disllowed host with connect > 'jdbc:derby://x.x.x.x:1527/wombat'; > Script startServer.sh: > java -Djava.security.manager > -Dderby.codejars="file:c:/cygwin/home/kmarsden/projects/10.8.2testing/db-derby-10.8.2.1-lib/lib/" > -Djava.security.policy=my.policy org.apache.derby.drda.NetworkServerControl > start -h 0.0.0.0 > Policy File my.policy (change x.x.x.x and y.y.y.y) to the allowed and > disallowed host resp
[jira] [Updated] (DERBY-5411) Client that does not have Security manager permission to connect gets ERROR 08006: Insufficient data while reading from the network Message should be clearer
[
https://issues.apache.org/jira/browse/DERBY-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Kathey Marsden updated DERBY-5411:
--
Description:
I was doing a little remote testing for the release candidate and noticed if a
machine does not have permission to connect, then the client shows the
following exception:
ij connect 'jdbc:derby://x.xx.xxx.xx:1527/wombat';
ERROR 08006: Insufficient data while reading from the network - expected a
minimum of 6 bytes and received only 0 bytes. The connection has been term
inated.
java.sql.SQLNonTransientConnectionException: Insufficient data while reading
from the network - expected a minimum of 6 bytes and received only 0 byte
s. The connection has been terminated.
at
org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown Source)
at org.apache.derby.client.am.SqlException.getSQLException(Unknown
Source)
at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:322)
at java.sql.DriverManager.getConnection(DriverManager.java:297)
at org.apache.derby.impl.tools.ij.ij.dynamicConnection(Unknown Source)
at org.apache.derby.impl.tools.ij.ij.ConnectStatement(Unknown Source)
at org.apache.derby.impl.tools.ij.ij.ijStatement(Unknown Source)
at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown Source)
at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.go(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.main(Unknown Source)
at org.apache.derby.tools.ij.main(Unknown Source)
Caused by: org.apache.derby.client.am.DisconnectException: Insufficient data
while reading from the network - expected a minimum of 6 bytes and receiv
ed only 0 bytes. The connection has been terminated.
at org.apache.derby.client.net.Reply.fill(Unknown Source)
at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Unknown
Source)
at org.apache.derby.client.net.Reply.readDssHeader(Unknown Source)
at org.apache.derby.client.net.Reply.startSameIdChainParse(Unknown
Source)
at
org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(Unknown Source)
at org.apache.derby.client.net.NetConnection.flowConnect(Unknown Source)
at org.apache.derby.client.net.NetConnection.init(Unknown Source)
at org.apache.derby.client.net.NetConnection40.init(Unknown Source)
at
org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown
Source)
... 12 more
It would be good to have a clearer error message:
To Reproduce, use the script and policy file below changing the url for
derby.codejars to the correct path for your enviroment also in the policy file
my.policy exchange x.x.x.x with the permitted host and y.y.y.y with the
disallowed host. Then try to connect from the disllowed host with connect
'jdbc:derby://x.x.x.x:1527/wombat';
Script startServer.sh:
java -Djava.security.manager
-Dderby.codejars=file:c:/cygwin/home/kmarsden/projects/10.8.2testing/db-derby-10.8.2.1-lib/lib/
-Djava.security.policy=my.policy org.apache.derby.drda.NetworkServerControl
start -h 0.0.0.0
Policy File my.policy (change x.x.x.x and y.y.y.y) to the allowed and
disallowed host respectively. )Since the y.y.y.y line is commented it is not
really relevant except for testing that remote connections work properly)
grant codeBase ${derby.codejars}derby.jar
{
//
// These permissions are needed for everyday, embedded Derby usage.
//
permission java.lang.RuntimePermission createClassLoader;
permission java.util.PropertyPermission derby.*, read;
permission java.util.PropertyPermission user.dir, read;
permission java.util.PropertyPermission derby.storage.jvmInstanceId,
write;
permission java.io.FilePermission ${user.dir}${/}-, read;
permission java.io.FilePermission ${derby.system.home},read;
permission java.io.FilePermission ${derby.system.home}${/}-,
read,write,delete;
//
// This permission lets a DBA reload the policy file while the server
// is still running. The policy file is reloaded by invoking the
// SYSCS_UTIL.SYSCS_RELOAD_SECURITY_POLICY() system procedure.
//
permission java.security.SecurityPermission getPolicy;
//
// This permission lets you backup and restore databases
// to and from arbitrary locations in your file system.
//
// This permission also lets you import/export data
[jira] [Updated] (DERBY-5411) Client that does not have Security manager permission to connect gets ERROR 08006: Insufficient data while reading from the network Message should be clearer
[
https://issues.apache.org/jira/browse/DERBY-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Kathey Marsden updated DERBY-5411:
--
Urgency: Low
Labels: derby_triage10_9 (was: )
Triaging for 10.9. Marking urgency as low as the problem is that with incorrect
usage (incorrect permissions) we throw an ugly and informative error instead of
an informative one.
Client that does not have Security manager permission to connect gets ERROR
08006: Insufficient data while reading from the network Message should be
clearer
---
Key: DERBY-5411
URL: https://issues.apache.org/jira/browse/DERBY-5411
Project: Derby
Issue Type: Bug
Components: Network Client
Affects Versions: 10.8.2.2
Reporter: Kathey Marsden
Priority: Minor
Labels: derby_triage10_9
I was doing a little remote testing for the release candidate and noticed if
a machine does not have permission to connect, then the client shows the
following exception:
ij connect 'jdbc:derby://9.72.133.41:1527/wombat';
ERROR 08006: Insufficient data while reading from the network - expected a
minimum of 6 bytes and received only 0 bytes. The connection has been term
inated.
java.sql.SQLNonTransientConnectionException: Insufficient data while reading
from the network - expected a minimum of 6 bytes and received only 0 byte
s. The connection has been terminated.
at
org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown
Source)
at org.apache.derby.client.am.SqlException.getSQLException(Unknown
Source)
at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:322)
at java.sql.DriverManager.getConnection(DriverManager.java:297)
at org.apache.derby.impl.tools.ij.ij.dynamicConnection(Unknown Source)
at org.apache.derby.impl.tools.ij.ij.ConnectStatement(Unknown Source)
at org.apache.derby.impl.tools.ij.ij.ijStatement(Unknown Source)
at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown
Source)
at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.go(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.main(Unknown Source)
at org.apache.derby.tools.ij.main(Unknown Source)
Caused by: org.apache.derby.client.am.DisconnectException: Insufficient data
while reading from the network - expected a minimum of 6 bytes and receiv
ed only 0 bytes. The connection has been terminated.
at org.apache.derby.client.net.Reply.fill(Unknown Source)
at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Unknown
Source)
at org.apache.derby.client.net.Reply.readDssHeader(Unknown Source)
at org.apache.derby.client.net.Reply.startSameIdChainParse(Unknown
Source)
at
org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(Unknown Source)
at org.apache.derby.client.net.NetConnection.flowConnect(Unknown
Source)
at org.apache.derby.client.net.NetConnection.init(Unknown Source)
at org.apache.derby.client.net.NetConnection40.init(Unknown Source)
at
org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown
Source)
... 12 more
It would be good to have a clearer error message:
To Reproduce, use the script and policy file below changing the url for
derby.codejars to the correct path for your enviroment also in the policy
file my.policy exchange x.x.x.x with the permitted host and y.y.y.y with the
disallowed host. Then try to connect from the disllowed host with connect
'jdbc:derby://x.x.x.x:1527/wombat';
Script startServer.sh:
java -Djava.security.manager
-Dderby.codejars=file:c:/cygwin/home/kmarsden/projects/10.8.2testing/db-derby-10.8.2.1-lib/lib/
-Djava.security.policy=my.policy org.apache.derby.drda.NetworkServerControl
start -h 0.0.0.0
Policy File my.policy (change x.x.x.x and y.y.y.y) to the allowed and
disallowed host respectively. )Since the y.y.y.y line is commented it is not
really relevant except for testing that remote connections work properly)
grant codeBase ${derby.codejars}derby.jar
[jira] [Updated] (DERBY-5411) Client that does not have Security manager permission to connect gets ERROR 08006: Insufficient data while reading from the network Message should be clearer
[
https://issues.apache.org/jira/browse/DERBY-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Kathey Marsden updated DERBY-5411:
--
Component/s: Network Client
Client that does not have Security manager permission to connect gets ERROR
08006: Insufficient data while reading from the network Message should be
clearer
---
Key: DERBY-5411
URL: https://issues.apache.org/jira/browse/DERBY-5411
Project: Derby
Issue Type: Bug
Components: Network Client
Affects Versions: 10.8.2.2
Reporter: Kathey Marsden
Priority: Minor
I was doing a little remote testing for the release candidate and noticed if
a machine does not have permission to connect, then the client shows the
following exception:
ij connect 'jdbc:derby://9.72.133.41:1527/wombat';
ERROR 08006: Insufficient data while reading from the network - expected a
minimum of 6 bytes and received only 0 bytes. The connection has been term
inated.
java.sql.SQLNonTransientConnectionException: Insufficient data while reading
from the network - expected a minimum of 6 bytes and received only 0 byte
s. The connection has been terminated.
at
org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown
Source)
at org.apache.derby.client.am.SqlException.getSQLException(Unknown
Source)
at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:322)
at java.sql.DriverManager.getConnection(DriverManager.java:297)
at org.apache.derby.impl.tools.ij.ij.dynamicConnection(Unknown Source)
at org.apache.derby.impl.tools.ij.ij.ConnectStatement(Unknown Source)
at org.apache.derby.impl.tools.ij.ij.ijStatement(Unknown Source)
at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown
Source)
at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.go(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.main(Unknown Source)
at org.apache.derby.tools.ij.main(Unknown Source)
Caused by: org.apache.derby.client.am.DisconnectException: Insufficient data
while reading from the network - expected a minimum of 6 bytes and receiv
ed only 0 bytes. The connection has been terminated.
at org.apache.derby.client.net.Reply.fill(Unknown Source)
at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Unknown
Source)
at org.apache.derby.client.net.Reply.readDssHeader(Unknown Source)
at org.apache.derby.client.net.Reply.startSameIdChainParse(Unknown
Source)
at
org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(Unknown Source)
at org.apache.derby.client.net.NetConnection.flowConnect(Unknown
Source)
at org.apache.derby.client.net.NetConnection.init(Unknown Source)
at org.apache.derby.client.net.NetConnection40.init(Unknown Source)
at
org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown
Source)
... 12 more
It would be good to have a clearer error message:
To Reproduce, use the script and policy file below changing the url for
derby.codejars to the correct path for your enviroment also in the policy
file my.policy exchange x.x.x.x with the permitted host and y.y.y.y with the
disallowed host. Then try to connect from the disllowed host with connect
'jdbc:derby://x.x.x.x:1527/wombat';
Script startServer.sh:
java -Djava.security.manager
-Dderby.codejars=file:c:/cygwin/home/kmarsden/projects/10.8.2testing/db-derby-10.8.2.1-lib/lib/
-Djava.security.policy=my.policy org.apache.derby.drda.NetworkServerControl
start -h 0.0.0.0
Policy File my.policy (change x.x.x.x and y.y.y.y) to the allowed and
disallowed host respectively. )Since the y.y.y.y line is commented it is not
really relevant except for testing that remote connections work properly)
grant codeBase ${derby.codejars}derby.jar
{
//
// These permissions are needed for everyday, embedded Derby usage.
//
permission java.lang.RuntimePermission createClassLoader;
permission java.util.PropertyPermission derby.*, read;
permission java.util.PropertyPermission user.dir, read;
permission
[jira] [Commented] (DERBY-5411) Client that does not have Security manager permission to connect gets ERROR 08006: Insufficient data while reading from the network Message should be clearer
[ https://issues.apache.org/jira/browse/DERBY-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13116942#comment-13116942 ] Dag H. Wanvik commented on DERBY-5411: -- The server side shows the error clearly on both console and derby.log: java.security.AccessControlException: access denied (java.net.SocketPermission 192.168.1.5:50110 accept,resolve) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:374) at java.security.AccessController.checkPermission(AccessController.java:546) at java.lang.SecurityManager.checkPermission(SecurityManager.java:532) at java.lang.SecurityManager.checkAccept(SecurityManager.java:1157) at java.net.ServerSocket.implAccept(ServerSocket.java:466) at java.net.ServerSocket.accept(ServerSocket.java:430) at org.apache.derby.impl.drda.ClientThread$1.run(ClientThread.java:67) at java.security.AccessController.doPrivileged(Native Method) at org.apache.derby.impl.drda.ClientThread.run(ClientThread.java:62) so I guess it's the client side error message that could be more constructive, maybe saying something like could not connect to Derby server on host:port and then list possible reasons. Is that what you had in mind? (I presume we can't tell exactly what went wrong from the client side) Client that does not have Security manager permission to connect gets ERROR 08006: Insufficient data while reading from the network Message should be clearer --- Key: DERBY-5411 URL: https://issues.apache.org/jira/browse/DERBY-5411 Project: Derby Issue Type: Bug Affects Versions: 10.8.2.1 Reporter: Kathey Marsden Priority: Minor I was doing a little remote testing for the release candidate and noticed if a machine does not have permission to connect, then the client shows the following exception: ij connect 'jdbc:derby://9.72.133.41:1527/wombat'; ERROR 08006: Insufficient data while reading from the network - expected a minimum of 6 bytes and received only 0 bytes. The connection has been term inated. java.sql.SQLNonTransientConnectionException: Insufficient data while reading from the network - expected a minimum of 6 bytes and received only 0 byte s. The connection has been terminated. at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown Source) at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source) at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source) at java.sql.DriverManager.getConnection(DriverManager.java:322) at java.sql.DriverManager.getConnection(DriverManager.java:297) at org.apache.derby.impl.tools.ij.ij.dynamicConnection(Unknown Source) at org.apache.derby.impl.tools.ij.ij.ConnectStatement(Unknown Source) at org.apache.derby.impl.tools.ij.ij.ijStatement(Unknown Source) at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown Source) at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source) at org.apache.derby.impl.tools.ij.Main.go(Unknown Source) at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source) at org.apache.derby.impl.tools.ij.Main.main(Unknown Source) at org.apache.derby.tools.ij.main(Unknown Source) Caused by: org.apache.derby.client.am.DisconnectException: Insufficient data while reading from the network - expected a minimum of 6 bytes and receiv ed only 0 bytes. The connection has been terminated. at org.apache.derby.client.net.Reply.fill(Unknown Source) at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Unknown Source) at org.apache.derby.client.net.Reply.readDssHeader(Unknown Source) at org.apache.derby.client.net.Reply.startSameIdChainParse(Unknown Source) at org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(Unknown Source) at org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(Unknown Source) at org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(Unknown Source) at org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(Unknown Source) at org.apache.derby.client.net.NetConnection.flowConnect(Unknown Source) at org.apache.derby.client.net.NetConnection.init(Unknown Source) at org.apache.derby.client.net.NetConnection40.init(Unknown Source) at org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown Source) ... 12 more It would be good to have
[jira] [Commented] (DERBY-5411) Client that does not have Security manager permission to connect gets ERROR 08006: Insufficient data while reading from the network Message should be clearer
[ https://issues.apache.org/jira/browse/DERBY-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13116949#comment-13116949 ] Dag H. Wanvik commented on DERBY-5411: -- I can see this without requiring an extra box: by just allowing localhost in the policy file, if I use explicit host name in the connect. Sometimes I also see this message:which is more reasonable. Mostly, I see what you did, though. ERROR 08006: A communications error has been detected: Connection reset. java.sql.SQLNonTransientConnectionException: A communications error has been detected: Connection reset. at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:71) at org.apache.derby.client.am.SqlException.getSQLException(SqlException.java:364) at org.apache.derby.jdbc.ClientDriver.connect(ClientDriver.java:166) at java.sql.DriverManager.getConnection(DriverManager.java:582) at java.sql.DriverManager.getConnection(DriverManager.java:154) at org.apache.derby.impl.tools.ij.ij.dynamicConnection(ij.java:1528) at org.apache.derby.impl.tools.ij.ij.ConnectStatement(ij.java:1358) at org.apache.derby.impl.tools.ij.ij.ijStatement(ij.java:1143) at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:347) at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:245) at org.apache.derby.impl.tools.ij.Main.go(Main.java:229) at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:184) at org.apache.derby.impl.tools.ij.Main.main(Main.java:75) at org.apache.derby.tools.ij.main(ij.java:59) Caused by: org.apache.derby.client.am.DisconnectException: A communications error has been detected: Connection reset. at org.apache.derby.client.net.NetAgent.throwCommunicationsFailure(NetAgent.java:425) at org.apache.derby.client.net.Reply.fill(Reply.java:174) at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Reply.java:216) at org.apache.derby.client.net.Reply.readDssHeader(Reply.java:318) at org.apache.derby.client.net.Reply.startSameIdChainParse(Reply.java:1160) at org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(NetConnectionReply.java:54) at org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(NetConnection.java:802) at org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(NetConnection.java:746) at org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(NetConnection.java:600) at org.apache.derby.client.net.NetConnection.flowConnect(NetConnection.java:410) at org.apache.derby.client.net.NetConnection.init(NetConnection.java:220) at org.apache.derby.client.net.NetConnection40.init(NetConnection40.java:74) at org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(ClientJDBCObjectFactoryImpl40.java:269) at org.apache.derby.jdbc.ClientDriver.connect(ClientDriver.java:157) ... 11 more Caused by: java.net.SocketException: Connection reset at java.net.SocketInputStream.read(SocketInputStream.java:168) at org.apache.derby.client.net.Reply.fill(Reply.java:172) ... 23 more Client that does not have Security manager permission to connect gets ERROR 08006: Insufficient data while reading from the network Message should be clearer --- Key: DERBY-5411 URL: https://issues.apache.org/jira/browse/DERBY-5411 Project: Derby Issue Type: Bug Affects Versions: 10.8.2.1 Reporter: Kathey Marsden Priority: Minor I was doing a little remote testing for the release candidate and noticed if a machine does not have permission to connect, then the client shows the following exception: ij connect 'jdbc:derby://9.72.133.41:1527/wombat'; ERROR 08006: Insufficient data while reading from the network - expected a minimum of 6 bytes and received only 0 bytes. The connection has been term inated. java.sql.SQLNonTransientConnectionException: Insufficient data while reading from the network - expected a minimum of 6 bytes and received only 0 byte s. The connection has been terminated. at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown Source) at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source) at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source) at java.sql.DriverManager.getConnection(DriverManager.java:322) at java.sql.DriverManager.getConnection(DriverManager.java:297
[jira] [Commented] (DERBY-5411) Client that does not have Security manager permission to connect gets ERROR 08006: Insufficient data while reading from the network Message should be clearer
[ https://issues.apache.org/jira/browse/DERBY-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13116964#comment-13116964 ] Dag H. Wanvik commented on DERBY-5411: -- It seems the read from the socket in Reply.fill: actualBytesRead = netAgent_.getInputStream().read(buffer_, count_, buffer_.length - count_); sometimes throws, and sometimes return -1 (end of stream). It appears to be timing dependent: If, in the debugger, I let there be a time between the write on the socket and the read of the reply, I get the java.net.SocketException: Connection reset, if not I mostly get the -1. Not sure what goes on... Client that does not have Security manager permission to connect gets ERROR 08006: Insufficient data while reading from the network Message should be clearer --- Key: DERBY-5411 URL: https://issues.apache.org/jira/browse/DERBY-5411 Project: Derby Issue Type: Bug Affects Versions: 10.8.2.1 Reporter: Kathey Marsden Priority: Minor I was doing a little remote testing for the release candidate and noticed if a machine does not have permission to connect, then the client shows the following exception: ij connect 'jdbc:derby://9.72.133.41:1527/wombat'; ERROR 08006: Insufficient data while reading from the network - expected a minimum of 6 bytes and received only 0 bytes. The connection has been term inated. java.sql.SQLNonTransientConnectionException: Insufficient data while reading from the network - expected a minimum of 6 bytes and received only 0 byte s. The connection has been terminated. at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown Source) at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source) at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source) at java.sql.DriverManager.getConnection(DriverManager.java:322) at java.sql.DriverManager.getConnection(DriverManager.java:297) at org.apache.derby.impl.tools.ij.ij.dynamicConnection(Unknown Source) at org.apache.derby.impl.tools.ij.ij.ConnectStatement(Unknown Source) at org.apache.derby.impl.tools.ij.ij.ijStatement(Unknown Source) at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown Source) at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source) at org.apache.derby.impl.tools.ij.Main.go(Unknown Source) at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source) at org.apache.derby.impl.tools.ij.Main.main(Unknown Source) at org.apache.derby.tools.ij.main(Unknown Source) Caused by: org.apache.derby.client.am.DisconnectException: Insufficient data while reading from the network - expected a minimum of 6 bytes and receiv ed only 0 bytes. The connection has been terminated. at org.apache.derby.client.net.Reply.fill(Unknown Source) at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Unknown Source) at org.apache.derby.client.net.Reply.readDssHeader(Unknown Source) at org.apache.derby.client.net.Reply.startSameIdChainParse(Unknown Source) at org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(Unknown Source) at org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(Unknown Source) at org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(Unknown Source) at org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(Unknown Source) at org.apache.derby.client.net.NetConnection.flowConnect(Unknown Source) at org.apache.derby.client.net.NetConnection.init(Unknown Source) at org.apache.derby.client.net.NetConnection40.init(Unknown Source) at org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown Source) ... 12 more It would be good to have a clearer error message: To Reproduce, use the script and policy file below changing the url for derby.codejars to the correct path for your enviroment also in the policy file my.policy exchange x.x.x.x with the permitted host and y.y.y.y with the disallowed host. Then try to connect from the disllowed host with connect 'jdbc:derby://x.x.x.x:1527/wombat'; Script startServer.sh: java -Djava.security.manager -Dderby.codejars=file:c:/cygwin/home/kmarsden/projects/10.8.2testing/db-derby-10.8.2.1-lib/lib/ -Djava.security.policy=my.policy org.apache.derby.drda.NetworkServerControl start -h 0.0.0.0 Policy File my.policy (change x.x.x.x and y.y.y.y) to the allowed and disallowed host
[jira] [Created] (DERBY-5411) Client that does not have Security manager permission to connect gets ERROR 08006: Insufficient data while reading from the network Message should be clearer
Client that does not have Security manager permission to connect gets ERROR
08006: Insufficient data while reading from the network Message should be
clearer
---
Key: DERBY-5411
URL: https://issues.apache.org/jira/browse/DERBY-5411
Project: Derby
Issue Type: Bug
Affects Versions: 10.8.2.1
Reporter: Kathey Marsden
Priority: Minor
I was doing a little remote testing for the release candidate and noticed if a
machine does not have permission to connect, then the client shows the
following exception:
ij connect 'jdbc:derby://9.72.133.41:1527/wombat';
ERROR 08006: Insufficient data while reading from the network - expected a
minimum of 6 bytes and received only 0 bytes. The connection has been term
inated.
java.sql.SQLNonTransientConnectionException: Insufficient data while reading
from the network - expected a minimum of 6 bytes and received only 0 byte
s. The connection has been terminated.
at
org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown Source)
at org.apache.derby.client.am.SqlException.getSQLException(Unknown
Source)
at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:322)
at java.sql.DriverManager.getConnection(DriverManager.java:297)
at org.apache.derby.impl.tools.ij.ij.dynamicConnection(Unknown Source)
at org.apache.derby.impl.tools.ij.ij.ConnectStatement(Unknown Source)
at org.apache.derby.impl.tools.ij.ij.ijStatement(Unknown Source)
at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown Source)
at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.go(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source)
at org.apache.derby.impl.tools.ij.Main.main(Unknown Source)
at org.apache.derby.tools.ij.main(Unknown Source)
Caused by: org.apache.derby.client.am.DisconnectException: Insufficient data
while reading from the network - expected a minimum of 6 bytes and receiv
ed only 0 bytes. The connection has been terminated.
at org.apache.derby.client.net.Reply.fill(Unknown Source)
at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Unknown
Source)
at org.apache.derby.client.net.Reply.readDssHeader(Unknown Source)
at org.apache.derby.client.net.Reply.startSameIdChainParse(Unknown
Source)
at
org.apache.derby.client.net.NetConnectionReply.readExchangeServerAttributes(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.readServerAttributesAndKeyExchange(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.flowServerAttributesAndKeyExchange(Unknown
Source)
at
org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(Unknown Source)
at org.apache.derby.client.net.NetConnection.flowConnect(Unknown Source)
at org.apache.derby.client.net.NetConnection.init(Unknown Source)
at org.apache.derby.client.net.NetConnection40.init(Unknown Source)
at
org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown
Source)
... 12 more
It would be good to have a clearer error message:
To Reproduce, use the script and policy file below changing the url for
derby.codejars to the correct path for your enviroment also in the policy file
my.policy exchange x.x.x.x with the permitted host and y.y.y.y with the
disallowed host. Then try to connect from the disllowed host with connect
'jdbc:derby://x.x.x.x:1527/wombat';
Script startServer.sh:
java -Djava.security.manager
-Dderby.codejars=file:c:/cygwin/home/kmarsden/projects/10.8.2testing/db-derby-10.8.2.1-lib/lib/
-Djava.security.policy=my.policy org.apache.derby.drda.NetworkServerControl
start -h 0.0.0.0
Policy File my.policy (change x.x.x.x and y.y.y.y) to the allowed and
disallowed host respectively. )Since the y.y.y.y line is commented it is not
really relevant except for testing that remote connections work properly)
grant codeBase ${derby.codejars}derby.jar
{
//
// These permissions are needed for everyday, embedded Derby usage.
//
permission java.lang.RuntimePermission createClassLoader;
permission java.util.PropertyPermission derby.*, read;
permission java.util.PropertyPermission user.dir, read;
permission java.util.PropertyPermission derby.storage.jvmInstanceId,
write;
permission java.io.FilePermission ${user.dir}${/}-, read;
permission java.io.FilePermission ${derby.system.home},read;
permission java.io.FilePermission ${derby.system.home}${/}-,
read,write,delete;
//
// This permission lets a DBA reload the policy file while the server
