我正在尝试从我的 java 程序连接到 IBM midrange (AS400) 机器，然后重置用户密码。使用 Jt400.jar，我设法做到了。但问题是，我需要将端口设置为专门使用端口 23。我希望它遵循 tn5250 连接到 AS400 的方式。从这里的 IBM 网站，我知道我可以通过使用as400.connectToPort(23).
让我感到困惑的是，当我添加该方法时，我得到了一个java.lang.RuntimeException: java.lang.NegativeArraySizeException. 我确实尝试搜索导致此异常的原因，并在此处进行了更多解释。这是我的代码：
public void executeSetPassword(final String userName, final GuardedString password) {
if ((userName != null) && (password != null)) {
final String host = configuration.getHost();
final String remoteUser = configuration.getRemoteUser();
GuardedString passwd = configuration.getPassword();
boolean isSuccessful;
final AS400 as400 = new AS400();
try {
as400.setSystemName(host);
as400.setUserId(remoteUser);
passwd.access(new Accessor(){
@Override
public void access(char[] clearChars) {
try {
as400.setPassword(new String(clearChars));
}catch (Exception e) {
e.printStackTrace();
}
}});
as400.setGuiAvailable(false);
as400.connectToPort(23);
final CommandCall cc = new CommandCall(as400);
final StringBuilder command = new StringBuilder();
password.access(new Accessor(){
@Override
public void access(char[] clearChars) {
command.append("CHGUSRPRF USRPRF(" + userName + ") PASSWORD(" + new String(clearChars) + ")");
}});
try {
isSuccessful = cc.run(command.toString());
logger.info("command status is = " + isSuccessful);
// getMessageList returns an array of AS400Message objects
for(AS400Message msg : cc.getMessageList()){
logger.info(
" msg: " + msg.getID() + ": " + msg.getText());
}
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception e){
throw new RuntimeException(e);
}
}
}
这是日志文件：
Thread Id: 1 Time: 2015-06-29 14:27:05.592 Class: com.mastersam.connectors.AS400.AS400ConnectorTests Method: updateTest(AS400ConnectorTests.java:150) Level: INFO Message: Running Update Test
Thread Id: 1 Time: 2015-06-29 14:27:05.705 Class: org.identityconnectors.framework.api.operations.UpdateApiOp Method: update Level: OK Message: Enter: update(ObjectClass: __ACCOUNT__, Attribute: {Name=__UID__, Value=[fikrie1]}, [Attribute: {Name=__PASSWORD__, Value=[org.identityconnectors.common.security.GuardedString@408a7bb8]}], OperationOptions: {})
Thread Id: 1 Time: 2015-06-29 14:27:07.749 Class: org.identityconnectors.framework.api.operations.UpdateApiOp Method: update Level: OK Message: Exception:
java.lang.RuntimeException: java.lang.NegativeArraySizeException
at com.mastersam.connectors.AS400.AS400Connector.executeSetPassword(AS400Connector.java:261)
at com.mastersam.connectors.AS400.AS400Connector.update(AS400Connector.java:199)
at org.identityconnectors.framework.impl.api.local.operations.UpdateImpl.update(UpdateImpl.java:88)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.identityconnectors.framework.impl.api.local.operations.ConnectorAPIOperationRunnerProxy.invoke(ConnectorAPIOperationRunnerProxy.java:97)
at com.sun.proxy.$Proxy10.update(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.identityconnectors.framework.impl.api.local.operations.ThreadClassLoaderManagerProxy.invoke(ThreadClassLoaderManagerProxy.java:96)
at com.sun.proxy.$Proxy10.update(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.identityconnectors.framework.impl.api.DelegatingTimeoutProxy.invoke(DelegatingTimeoutProxy.java:98)
at com.sun.proxy.$Proxy10.update(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.identityconnectors.framework.impl.api.LoggingProxy.invoke(LoggingProxy.java:76)
at com.sun.proxy.$Proxy10.update(Unknown Source)
at org.identityconnectors.framework.impl.api.AbstractConnectorFacade.update(AbstractConnectorFacade.java:176)
at com.mastersam.connectors.AS400.AS400ConnectorTests.updateTest(AS400ConnectorTests.java:156)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
at org.testng.TestRunner.privateRun(TestRunner.java:767)
at org.testng.TestRunner.run(TestRunner.java:617)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
at org.testng.SuiteRunner.run(SuiteRunner.java:240)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)
at org.testng.TestNG.run(TestNG.java:1057)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175)
Caused by: java.lang.NegativeArraySizeException
at com.ibm.as400.access.AS400XChgRandSeedReplyDS.read(AS400XChgRandSeedReplyDS.java:58)
at com.ibm.as400.access.AS400ImplRemote.getConnection(AS400ImplRemote.java:823)
at com.ibm.as400.access.AS400ImplRemote.connectToPort(AS400ImplRemote.java:408)
at com.ibm.as400.access.AS400.connectToPort(AS400.java:1152)
at com.mastersam.connectors.AS400.AS400Connector.executeSetPassword(AS400Connector.java:239)
... 52 more
FAILED: updateTest
java.lang.RuntimeException: java.lang.NegativeArraySizeException
at com.mastersam.connectors.AS400.AS400Connector.executeSetPassword(AS400Connector.java:261)
at com.mastersam.connectors.AS400.AS400Connector.update(AS400Connector.java:199)
at org.identityconnectors.framework.impl.api.local.operations.UpdateImpl.update(UpdateImpl.java:88)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.identityconnectors.framework.impl.api.local.operations.ConnectorAPIOperationRunnerProxy.invoke(ConnectorAPIOperationRunnerProxy.java:97)
at com.sun.proxy.$Proxy10.update(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.identityconnectors.framework.impl.api.local.operations.ThreadClassLoaderManagerProxy.invoke(ThreadClassLoaderManagerProxy.java:96)
at com.sun.proxy.$Proxy10.update(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.identityconnectors.framework.impl.api.DelegatingTimeoutProxy.invoke(DelegatingTimeoutProxy.java:98)
at com.sun.proxy.$Proxy10.update(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.identityconnectors.framework.impl.api.LoggingProxy.invoke(LoggingProxy.java:76)
at com.sun.proxy.$Proxy10.update(Unknown Source)
at org.identityconnectors.framework.impl.api.AbstractConnectorFacade.update(AbstractConnectorFacade.java:176)
at com.mastersam.connectors.AS400.AS400ConnectorTests.updateTest(AS400ConnectorTests.java:156)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
at org.testng.TestRunner.privateRun(TestRunner.java:767)
at org.testng.TestRunner.run(TestRunner.java:617)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
at org.testng.SuiteRunner.run(SuiteRunner.java:240)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)
at org.testng.TestNG.run(TestNG.java:1057)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175)
Caused by: java.lang.NegativeArraySizeException
at com.ibm.as400.access.AS400XChgRandSeedReplyDS.read(AS400XChgRandSeedReplyDS.java:58)
at com.ibm.as400.access.AS400ImplRemote.getConnection(AS400ImplRemote.java:823)
at com.ibm.as400.access.AS400ImplRemote.connectToPort(AS400ImplRemote.java:408)
at com.ibm.as400.access.AS400.connectToPort(AS400.java:1152)
at com.mastersam.connectors.AS400.AS400Connector.executeSetPassword(AS400Connector.java:239)
... 52 more
那么，为什么从 jt400 添加一个方法会导致 NegativeArraySizeException？
在寻找替代方案时，我在这里找到了有关 JT400 方法的更多信息，然后尝试使用as400.connectService(). 从这里开始，我假设我应该使用的服务是COMMANDand SIGNON。这是尝试此方法后我的代码的一部分：
final AS400 as400 = new AS400();
try {
as400.setSystemName(host);
as400.setUserId(remoteUser);
passwd.access(new Accessor(){
@Override
public void access(char[] clearChars) {
try {
as400.setPassword(new String(clearChars));
}catch (Exception e) {
e.printStackTrace();
}
}});
as400.setGuiAvailable(false);
as400.connectService(7); //I added this
as400.setServicePort(7, 23); //I added this
as400.setServicePort(6, 23); //I added this
logger.info("port is = " + as400.getServicePort(7));
final CommandCall cc = new CommandCall(as400);
final StringBuilder command = new StringBuilder();
password.access(new Accessor(){
@Override
public void access(char[] clearChars) {
command.append("CHGUSRPRF USRPRF(" + userName + ") PASSWORD(" + new String(clearChars) + ")");
}});
try {
isSuccessful = cc.run(command.toString());
as400.setServicePort(2, 23); //I added this
logger.info("port is = " + as400.getServicePort(2));
}
根据日志，端口是23。但是当我使用Wireshark应用程序仔细检查时，它用来连接AS400的端口不是23。如果我在任何地方做错了，请指导我。
我尝试过的其他事情，
as400.connectService()在和之间交换线as400.setServicePort()- 导致与前一个相同的错误：java.lang.NegativeArraySizeException
检查端口 23 是否可用。使用 tn5250 连接到 AS400。连接正常。
设置 as400.connectToPort() 以使用其他端口。
- 导致与使用端口 23 相同的错误。