OIM 11G, DSML integration failing with null pointer exception
Hi,
we are facing the similar probelm while sending a request from TIBCO BW to OIM 11G (Which is weblogic)
The below request from TIBCO is not working and thowing a NULL POINTER EXCEPTION
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Header>
<ns:OIMUser xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns="http://xmlns.oracle.com/OIM/provisioning" xmlns:ns0="http://schemas.xmlsoap.org/soap/envelope/">
<ns:OIMUserId>xelsysadm</ns:OIMUserId>
<ns:OIMUserPassword>Welcome123</ns:OIMUserPassword>
</ns:OIMUser>
</SOAP-ENV:Header>
<SOAP-ENV:Body>
<ns0:processRequest xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns0="http://xmlns.oracle.com/OIM/provisioning">
<sOAPElement xmlns="">
<ns:modifyRequest xmlns:ns="urn:oasis:names:tc:SPML:2:0" xmlns:ns0="http://schemas.xmlsoap.org/soap/envelope/" returnData="data">
<ns:psoID ID="Users:21"/>
<ns:modification name="Users.User ID" operation="add">
<ns:value>Richard1</ns:value>
</ns:modification>
</ns:modifyRequest>
</sOAPElement>
</ns0:processRequest>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
But if we change the <sOAPElement xmlns=""> to <sOAPElement> (removing the empty namespace) we can able to fire this soap.
Could you please let me know are there any patch, workaround for this issue.
Thanks
Madhu
I don't think OIM 11g supports DSML profile and may be that's the reason you are getting NPE.
See: http://docs.oracle.com/cd/E14571_01/doc.1111/e14309/spmlapi.htm#CHDCBJAI
It states:
"SPML has two profiles: the XSD profile and the DSML profile. This release of Oracle Identity Manager makes use of the XSD profile."
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dictationGrammar.setEnabled(true);
recognizer.commitChanges();
} else if (tags[0].equals("stop")) {
dictationGrammar.setEnabled(false);
ruleGrammar.setEnabled(true);
recognizer.commitChanges();
} else if (tags[0].equals("bye")) {
speak(resources.getString("bye"));
if (synthesizer!=null)
synthesizer.waitEngineState(Synthesizer.QUEUE_EMPTY);
Thread.sleep(1000);
System.exit(0);
} catch (Exception ex) {
ex.printStackTrace();
int i = 0;
String eh[] = null;
public void resultRejected(ResultEvent e) {
if (eh==null) {
String s = resources.getString("eh");
StringTokenizer t = new StringTokenizer(s);
int n = t.countTokens();
eh = new String[n];
for (int i=0; i<n; i++)
eh = t.nextToken();
if (((Result)(e.getSource())).numTokens() > 2)
speak(eh[(i++)%eh.length]);
static ResultListener dictationListener = new ResultAdapter() {
int n = 0; // number of tokens seen so far
public void resultUpdated(ResultEvent e) {
Result result = (Result) e.getSource();
for (int i=n; i<result.numTokens(); i++)
System.out.println(result.getBestToken(i).getSpokenText());
n = result.numTokens();
public void resultAccepted(ResultEvent e) {
Result result = (Result) e.getSource();
String s = "";
for (int i=0; i<n; i++)
s += result.getBestToken(i).getSpokenText() + " ";
speak(s);
n = 0;
static RecognizerAudioListener audioListener =new RecognizerAudioAdapter(){
public void audioLevel(RecognizerAudioEvent e) {
System.out.println("volume " + e.getAudioLevel());
static EngineListener engineListener = new EngineAdapter() {
public void engineError(EngineErrorEvent e) {
System.out.println
("Engine error: " + e.getEngineError().getMessage());
static void speak(String s) {
if (synthesizer!=null) {
try {
synthesizer.speak(s, null);
} catch (Exception e) {
e.printStackTrace();
} else
System.out.println(s);
public static void main(String args[]) {
try {
if (args.length>0) Locale.setDefault(new Locale(args[0], ""));
if (args.length>1) Locale.setDefault(new Locale(args[0], args[1]));
System.out.println("locale is " + Locale.getDefault());
resources = ResourceBundle.getBundle("res");
recognizer = Central.createRecognizer(null);
recognizer.allocate();
recognizer.getAudioManager().addAudioListener(audioListener);
recognizer.addEngineListener(engineListener);
dictationGrammar = recognizer.getDictationGrammar(null);
dictationGrammar.addResultListener(dictationListener);
String grammarName = resources.getString("grammar");
Reader reader = new FileReader(grammarName);
ruleGrammar = recognizer.loadJSGF(reader);
ruleGrammar.addResultListener(ruleListener);
ruleGrammar.setEnabled(true);
recognizer.commitChanges();
recognizer.requestFocus();
recognizer.resume();
synthesizer = Central.createSynthesizer(null);
if (synthesizer!=null) {
synthesizer.allocate();
synthesizer.addEngineListener(engineListener);
speak(resources.getString("greeting"));
} catch (Exception e) {
e.printStackTrace();
System.exit(-1);yes, the problem seems to be with allocating the engine, but I don't know exactly why recognizer.allocate() returns null...I have already installed IBM ViaVoice and Speech for Java, and have set the supposedly correct paths...
-
JDK7 setVisable(true) fails with null pointer
All
We have Swing and JFX running in JDK6 fine. When we upgraded to JDK 7 we saw this issue
2012-08-28 11:42:49.603 java[45928:707] Please file a bug report at http://java.net/jira/browse/MACOSX_PORT with this message and a reproducible test case.
2012-08-28 11:42:49.604 java[45928:707] Cocoa AWT: Running on AppKit thread 0 when not expected. (
0 liblwawt.dylib 0x0000000154cfe62a Java_sun_lwawt_macosx_CPlatformWindow_nativeSynthesizeMouseEnteredExitedEvents + 59
1 ??? 0x0000000105deddb1 0x0 + 4393459121
2012-08-28 11:42:49.604 java[45928:707] Please file a bug report at http://java.net/jira/browse/MACOSX_PORT with this message and a reproducible test case.
Exception in runnable
java.lang.NullPointerException
at sun.lwawt.macosx.CPlatformWindow.getLocationOnScreen(CPlatformWindow.java:439)
at sun.lwawt.LWWindowPeer.getLocationOnScreen(LWWindowPeer.java:368)
at java.awt.Component.getLocationOnScreen_NoTreeLock(Component.java:2033)
at java.awt.Component.getLocationOnScreen(Component.java:2018)
at javafx.embed.swing.JFXPanel.updateScreenLocation(JFXPanel.java:481)
at javafx.embed.swing.JFXPanel.processHierarchyEvent(JFXPanel.java:520)
at java.awt.Component.processEvent(Component.java:6291)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.Component.createHierarchyEvents(Component.java:5521)
at java.awt.Container.createHierarchyEvents(Container.java:1437)
at java.awt.Container.createHierarchyEvents(Container.java:1434)
at java.awt.Container.createHierarchyEvents(Container.java:1434)
at java.awt.Container.createHierarchyEvents(Container.java:1434)
at java.awt.Container.createHierarchyEvents(Container.java:1434)
at java.awt.Component.show(Component.java:1619)
at java.awt.Window.show(Window.java:1042)
at java.awt.Component.show(Component.java:1651)
at java.awt.Component.setVisible(Component.java:1603)
at java.awt.Window.setVisible(Window.java:1014)
at com.celertech.web.orderrouting.client.login.presenter.LoginPresenter.initialise(LoginPresenter.java:159)All
We have Swing and JFX running in JDK6 fine. When we upgraded to JDK 7 we saw this issue
2012-08-28 11:42:49.603 java[45928:707] Please file a bug report at http://java.net/jira/browse/MACOSX_PORT with this message and a reproducible test case.
2012-08-28 11:42:49.604 java[45928:707] Cocoa AWT: Running on AppKit thread 0 when not expected. (
0 liblwawt.dylib 0x0000000154cfe62a Java_sun_lwawt_macosx_CPlatformWindow_nativeSynthesizeMouseEnteredExitedEvents + 59
1 ??? 0x0000000105deddb1 0x0 + 4393459121
2012-08-28 11:42:49.604 java[45928:707] Please file a bug report at http://java.net/jira/browse/MACOSX_PORT with this message and a reproducible test case.
Exception in runnable
java.lang.NullPointerException
at sun.lwawt.macosx.CPlatformWindow.getLocationOnScreen(CPlatformWindow.java:439)
at sun.lwawt.LWWindowPeer.getLocationOnScreen(LWWindowPeer.java:368)
at java.awt.Component.getLocationOnScreen_NoTreeLock(Component.java:2033)
at java.awt.Component.getLocationOnScreen(Component.java:2018)
at javafx.embed.swing.JFXPanel.updateScreenLocation(JFXPanel.java:481)
at javafx.embed.swing.JFXPanel.processHierarchyEvent(JFXPanel.java:520)
at java.awt.Component.processEvent(Component.java:6291)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.Component.createHierarchyEvents(Component.java:5521)
at java.awt.Container.createHierarchyEvents(Container.java:1437)
at java.awt.Container.createHierarchyEvents(Container.java:1434)
at java.awt.Container.createHierarchyEvents(Container.java:1434)
at java.awt.Container.createHierarchyEvents(Container.java:1434)
at java.awt.Container.createHierarchyEvents(Container.java:1434)
at java.awt.Component.show(Component.java:1619)
at java.awt.Window.show(Window.java:1042)
at java.awt.Component.show(Component.java:1651)
at java.awt.Component.setVisible(Component.java:1603)
at java.awt.Window.setVisible(Window.java:1014)
at com.celertech.web.orderrouting.client.login.presenter.LoginPresenter.initialise(LoginPresenter.java:159) -
Reflection problems with null pointer exception
I am having a problem with reflection. I keep getting a NullPointerException and can't figure out why.
It is happening when I call this:
ResponseObject result = (ResponseObject)method.invoke(classInstance, argArray);
I can't figure out what the problem is. I had this reflection working, and then I made some changes to how the argument array was created. In the end, the argarray is the same.
Any ideas?Also, the API for the method class says that a
NullPointerException is thrown if the object in the
first argument is null. I have tested for this, and
it is not null.does it? read again, because giving 'null' as the first argument is perfectly legal. how else would you reflectively invoke a static method, since you might not have an actual instance of the class to pass -
Custom Schedule Task ( Null Pointer Exception)
Hi All,
I had written Custom Schedule task: Below is the code
When i run the Schedule task it is failing throwing Null Pointer Exception. the code is not able to fetch userId ,passwordex and passwordwar values in execute method. please help me
package oracle.iam.sample.notification;
import java.sql.Date;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import oracle.iam.identity.exception.NoSuchUserException;
import oracle.iam.identity.exception.UserLookupException;
import oracle.iam.identity.usermgmt.api.UserManager;
import oracle.iam.identity.usermgmt.vo.User;
import oracle.iam.notification.api.NotificationService;
import oracle.iam.notification.exception.EventException;
import oracle.iam.notification.exception.MultipleTemplateException;
import oracle.iam.notification.exception.NotificationException;
import oracle.iam.notification.exception.NotificationResolverNotFoundException;
import oracle.iam.notification.exception.TemplateNotFoundException;
import oracle.iam.notification.exception.UnresolvedNotificationDataException;
import oracle.iam.notification.exception.UserDetailsNotFoundException;
import oracle.iam.notification.vo.NotificationEvent;
import oracle.iam.platform.Platform;
import oracle.iam.platform.authz.exception.AccessDeniedException;
import oracle.iam.scheduler.vo.TaskSupport;
import static oracle.iam.identity.usermgmt.api.UserManagerConstants.AttributeName.MANAGER_KEY;
import static oracle.iam.identity.usermgmt.api.UserManagerConstants.AttributeName.USER_LOGIN;
import oracle.iam.platform.kernel.vo.Orchestration;
public class PasswordExpiry extends TaskSupport {
public PasswordExpiry() {
super();
public void execute(HashMap taskParameters) {
System.out.println("inside the Execute methode");
System.out.println("Schedule task Arguments "+taskParameters);
String userId = (String)taskParameters.get("User Login");
System.out.println("===========input=============== "+userId);
String passwordex=taskParameters.get("usr_pwd_expire_date").toString();
System.out.println("===========input=============== "+passwordex);
String passwordwar=taskParameters.get("usr_pwd_warn_date").toString();
System.out.println("===========input=============== "+passwordwar);
try {
System.out.println("inside the Try block");
NotificationService notService = Platform.getService(NotificationService.class);
NotificationEvent eventToSend = this.createNotificationEvent(userId, passwordex,passwordwar);
notService.notify(eventToSend);
} catch (Exception e) {
e.printStackTrace();
private NotificationEvent createNotificationEvent(String userKey, String passwordex,
String passwordwar) throws NoSuchUserException, UserLookupException,
AccessDeniedException {
NotificationEvent event = new NotificationEvent();
//get user IDs to whom notification is to be sent and set it in the
//event object being created
String[] receiverUserIds= getRecipientUserIds(userKey);
event.setUserIds(receiverUserIds);
//Set template name to be used to send notification for this event
event.setTemplateName("PasswordWarningNotificationTemplate");
//Setting senderId as null here and hence default sender ID would
//get picked up
event.setSender(null);
//Create a map with key value pair for the parameters declared at time
//of configuring notification event
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("usr_key", userKey);
map.put("usr_pwd_warn_date", passwordex);
map.put("usr_pwd_expire_date",passwordwar);
event.setParams(map);
return event;
private String[] getRecipientUserIds(String userKey) throws NoSuchUserException,
UserLookupException, AccessDeniedException {
UserManager usrMgr = Platform.getService(UserManager.class);
User user = null;
String userId = null;
Set<String> userRetAttrs = new HashSet<String>();
//Sending notification to both the user and his/her manager
userRetAttrs.add(MANAGER_KEY.getId());
userRetAttrs.add(USER_LOGIN.getId());
User manager = null;
String managerId = null;
String managerKey = null;
Set<String> managerRetAttrs = new HashSet<String>();
managerRetAttrs.add(USER_LOGIN.getId());
//Retrieving User ID
user = usrMgr.getDetails(userKey, userRetAttrs, false);
userId = user.getAttribute(USER_LOGIN.getId()).toString();
List<String> userIds = new ArrayList<String>();
userIds.add(userId);
if (user.getAttribute(MANAGER_KEY.getId()) != null) {
managerKey = user.getAttribute(MANAGER_KEY.getId()).toString();
manager = usrMgr.getDetails(managerKey, managerRetAttrs, false);
//Retrieving User's Manager ID
managerId = manager.getAttribute(USER_LOGIN.getId()).toString();
userIds.add(managerId);
//To return String[] than an Object array
String[] recipientIDs = userIds.toArray(new String[0]);
return recipientIDs;
* Call notification Engine passing an event object to it
* @param event
* @throws NotificationException
private void sendNotification(NotificationEvent event) throws NotificationException {
try {
//Call notify method of NotificationService to pass on the event
//to notification engine
NotificationService notificationService = Platform.getService(
NotificationService.class);
notificationService.notify(event);
} catch (EventException e) {
throw new NotificationException(e.getMessage(), e.getCause());
} catch (UnresolvedNotificationDataException e) {
throw new NotificationException(e.getMessage(), e.getCause());
} catch (TemplateNotFoundException e) {
throw new NotificationException(e.getMessage(), e.getCause());
} catch (MultipleTemplateException e) {
throw new NotificationException(e.getMessage(), e.getCause());
} catch (NotificationResolverNotFoundException e) {
throw new NotificationException(e.getMessage(), e.getCause());
} catch (UserDetailsNotFoundException e) {
throw new NotificationException(e.getMessage(), e.getCause());
} catch (NotificationException e){
throw e;
public HashMap getAttributes() {
return null;
public void setAttributes() {}
Thank youThe task parameters passed into a scheduled job are the parameters defined for the scheduled task definition in the metadata xml and configured in the scheduled job. They are not the data of an individual user as you seem to be trying to get. In a scheduled task I would expect some sort of search for users to operate on.
-
Null Pointer Exception and Illegal Arguement when ran with Wireless Toolkit
The following code throws a null pointer exception after it tried to initialize the textBox. I am not sure if there is something I am not importing, or if it's just because I'm sick and my head is cloudy. :-}.
I am using Wireless Toolkit 2.2 and Java 5.0
Anyhelp would be appreicated. Thank You.
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class TacticalTestMain extends MIDlet implements CommandListener {
private Display display;
private Form formMain;
private TextBox tbHelp; //Text Box for help Command
private Command cmExit; //A button to exit midLet
private Command cmBack; //Go "back" to main form
private Command cmHelp; //Ask for help
public TacticalTestMain()
display = Display.getDisplay(this);
formMain = new Form("Tactical Survey Program");
cmExit = new Command("Exit", Command.SCREEN, 1);
cmBack = new Command("Back", Command.BACK, 1);
cmHelp = new Command("Help", Command.HELP, 1);
formMain.addCommand(cmExit);
formMain.addCommand(cmBack);
formMain.addCommand(cmHelp);
formMain.setCommandListener(this);
System.out.println("Before Create Text Box");
//Create the help textBox with a max of 25 charecters
tbHelp = new TextBox("HeLp", "You can press the back button", 25, 0);
tbHelp.addCommand(cmBack);
tbHelp.setCommandListener(this);
System.out.println("AfTER Create Text Box");
}//end constructor
public void startApp()
System.out.println("Inside StartApp()");
display.setCurrent(formMain);
}//end startApp()
public void pauseApp()
}//end pauseApp
public void destroyApp(boolean unconditional)
notifyDestroyed();
}//end destroyApp()
//Check to see if the exit button was selected
public void commandAction(Command c, Displayable d)
System.out.println("Inside commandAction()");
String sLabel = c.getLabel();
if(sLabel.equals("Exit"))
destroyApp(true);
Errors from the KToolbar:
Running with storage root DefaultColorPhone
Before Create Text Box
Unable to create MIDlet TacticalTestMain
java.lang.IllegalArgumentException
at javax.microedition.lcdui.TextField.setChars(+105)
at javax.microedition.lcdui.TextField.setString(+27)
at javax.microedition.lcdui.TextField.<init>(+134)
at javax.microedition.lcdui.TextBox.<init>(+74)
at TacticalTestMain.<init>(+134)
at java.lang.Class.runCustomCode(+0)
at com.sun.midp.midlet.MIDletState.createMIDlet(+19)
at com.sun.midp.midlet.Selector.run(+22)
Execution completed.
743701 bytecodes executed
23 thread switches
741 classes in the system (including system classes)
4071 dynamic objects allocated (120440 bytes)
2 garbage collections (91412 bytes collected)Hi zoya,
Here is the problem:
tbHelp = new TextBox("HeLp", "You can press the back button", 25, 0);
This line declares a maximum textbox size of 25 but in reality he is declaring a textbox of size 29.
Thats why it is throwing the illegal argument.
happy coding :) -
i am facing problem while reading values from properties file ...i am getting null pointer exception earlier i was using jdeveloper10g now i am using 11g
hi TimoHahn,
i am getting following exception in JDeveloper(11g release 2) Studio Edition Version 11.1.2.4.0 but it works perfectly fine in JDeveloper 10.1.2.1.0
Root cause of ServletException.
java.lang.NullPointerException
at java.util.PropertyResourceBundle.handleGetObject(PropertyResourceBundle.java:136)
at java.util.ResourceBundle.getObject(ResourceBundle.java:368)
at java.util.ResourceBundle.getString(ResourceBundle.java:334)
at org.rbi.cefa.master.actionclass.UserAction.execute(UserAction.java:163)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178) -
Null pointer Exception with Float.parseFloat
I need to assign a float value from a database to a variable recurrently throughout a while loop. but i am getting a null pointer exception error:
while ( rs.next() )
out.println("<TR>");
float corr = Float.parseFloat((String) request.getParameter("echo"));
out.println("<center><TD><b><font color = #990000>" + rs.getString("race_number") + "</b></TD>");
out.println("<center><TD><b><font color = #990000>" + rs.getString("sail_number") + "</b></TD>");
out.println("<center><TD><b><font color = #990000>" + rs.getString("finish_time_elapsed") + "</b></TD>");
out.println("<center><TD><b><font color = #990000>" + rs.getString("echo") + "</b></TD>");
out.println("</TR>");
I've also tried:
float corr = Float.parseFloat( String request.getParameter("echo"));
float corr = 0;
corr Float.parseFloat((String) request.getParameter("echo"));
corr = echo;
corr = request.getParameter("echo");
corr = rs.getString("echo");
corr = Float.parseFloat(request.getParameter("echo"));
temp = rs.getFloat("Problem_Description");
Any ideas Please!!!Null pointer exception means that the value you are trying to turn into a Float is null. Probably request.getParameter("echo") returns null.
Is "echo" a request parameter, or a field you want to get from the database?
request.getParameter() has nothing to do with a database query.
That is your http request coming from the form submission. It won't change.
If "echo" is meant to be a request parameter, then make sure the parameter is actually present.
If its a database field (stored as a number) then
float corr = rs.getFloat("echo");
should do the trick.
Can the value be null in the database?
Cheers,
evnafets
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