Develop Reference

In Java - how do I get a full stack trace

Currently I get the following output from code run
Caused by: java.lang.NullPointerException
at com.gargoylesoftware.htmlunit.html.HtmlScript$2.execute(HtmlScript.java:227)
at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:256)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.endElement(HtmlUnitNekoDOMBuilder.java:560)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.endElement(HtmlUnitNekoDOMBuilder.java:514)
at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.callEndElement(HTMLTagBalancer.java:1192)
at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.endElement(HTMLTagBalancer.java:1132)
at net.sourceforge.htmlunit.cyberneko.filters.DefaultFilter.endElement(DefaultFilter.java:219)
at net.sourceforge.htmlunit.cyberneko.filters.NamespaceBinder.endElement(NamespaceBinder.java:312)
at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scanEndElement(HTMLScanner.java:3189)
at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scan(HTMLScanner.java:2114)
at net.sourceforge.htmlunit.cyberneko.HTMLScanner.scanDocument(HTMLScanner.java:937)
at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:443)
at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:394)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.parse(HtmlUnitNekoDOMBuilder.java:760)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoHtmlParser.parseFragment(HtmlUnitNekoHtmlParser.java:158)
at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoHtmlParser.parseFragment(HtmlUnitNekoHtmlParser.java:112)
at com.gargoylesoftware.htmlunit.javascript.host.Element.parseHtmlSnippet(Element.java:868)
at com.gargoylesoftware.htmlunit.javascript.host.Element.setInnerHTML(Element.java:920)
at com.gargoylesoftware.htmlunit.javascript.host.html.HTMLElement.setInnerHTML(HTMLElement.java:676)
at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at net.sourceforge.htmlunit.corejs.javascript.MemberBox.invoke(MemberBox.java:188)
... 30 more
The above ... 30 more means that I do not know the line of my code that causes the problem. How can I get the full stack trace.
Also, if it does not seem to be running any of my catch statements with printStackTrace, but if I turn off logging with the below command
java.util.logging.Logger.getLogger("com.gargoylesoftware.htmlunit").setLevel(java.util.logging.Level.OFF);
java.util.logging.Logger.getLogger("org.apache.http").setLevel(java.util.logging.Level.OFF);
**Have put in my full code below as suggested by the comments below . Did not put in the actual URL though**
import com.gargoylesoftware.htmlunit.html.*;
import java.io.File;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
public class download_to_send_to_stackoverflow
{
public static void main(String args[])
{
String url = "did not want to include the actual web site ";
HtmlPage page = null;
WebClient webClient = new WebClient();
webClient.getOptions().setRedirectEnabled(true);
webClient.getOptions().setJavaScriptEnabled(true); // tried making false - but didnt work
webClient.getOptions().setCssEnabled(false);
webClient.getOptions().setUseInsecureSSL(true);
webClient.getOptions().setTimeout(30000);
webClient.setJavaScriptTimeout(30000); //e.g. 50s
webClient.waitForBackgroundJavaScript(15000) ; // added 2017/1/24
webClient.waitForBackgroundJavaScriptStartingBefore(30000) ; // added 2017/1/24
try
{
page = webClient.getPage( url );
savePage_just_html(page );
}
catch( Exception e )
{
System.out.println( "Exception thrown:----------------------------------------" + e.getMessage() );
e.printStackTrace();
}
}
protected static String savePage_just_html(HtmlPage page)
{
try
{
File saveFolder = new File("spool/_");
page.save(saveFolder); // this is the line causing the error with limit stack trace
}
catch ( Exception e )
{
System.out.println( "IOException was thrown: ---------------------------------- " + e.getMessage() );
e.printStackTrace();
}
return "file.html";
}
}
------------------------------------------------------
page.save(saveFolder); above is the problem line. if I take it out I dont get the limited statcktrace errors but I also dont save the html page - which I want to do
- The question is - why does this line only print a limited stacktrace

The "Caused by" means that this is a nested exception.
The "... 30 more" in a nested exception stacktrace means that those 30 lines are the same as in the primary exception.
So just look at the primary stacktrace to see those stack frames.
Apparently your exception stacktraces are being generated in a way that is suppressing (or removing) the primary exception stacktrace. This is puzzling, but it is probably being done by one of the unit testing libraries that you are using.
Getting to the bottom of this will probably involve you either debugging whatever it is that is generating the stacktrace, or writing a minimal reproducible example so that someone else can debug it.

Invalid Client Data in BingAd request

I am trying to call bing ads for performance reports. Idea is to print all KPI details of the keywords. Should i require to set any more parameters in the request call?
I set all the parameters are explained in the bing document.
PasswordAuthentication passwordAuthentication
= new PasswordAuthentication(USER_NAME, PASSWORD);
authorizationData.setAuthentication(passwordAuthentication);
authorizationData.setCustomerId(customerId);
authorizationData.setAccountId(accountId);
authorizationData.setDeveloperToken(DEVELOPER_TOKEN);
ServiceClient<IAdInsightService> adInsightService = new ServiceClient<IAdInsightService>(
authorizationData,
IAdInsightService.class);
GetHistoricalKeywordPerformanceRequest getHistoricalKeywordPerformanceRequest = new GetHistoricalKeywordPerformanceRequest();
try {
GetHistoricalKeywordPerformanceResponse historicalKeywordPerformance = adInsightService.getService().getHistoricalKeywordPerformance(getHistoricalKeywordPerformanceRequest);
ArrayOfKeywordHistoricalPerformance keywordHistoricalPerformances = historicalKeywordPerformance.getKeywordHistoricalPerformances();
List<KeywordHistoricalPerformance> keywordHistoricalPerformances1 = keywordHistoricalPerformances.getKeywordHistoricalPerformances();
for (Iterator<KeywordHistoricalPerformance> iterator = keywordHistoricalPerformances1.iterator(); iterator.hasNext();) {
KeywordHistoricalPerformance performance = iterator.next();
ArrayOfKeywordKPI keywordKPIs = performance.getKeywordKPIs();
for (Iterator<KeywordKPI> iterator1 = keywordKPIs.getKeywordKPIs().iterator(); iterator1.hasNext();) {
KeywordKPI kPI = iterator1.next();
System.out.println("Impressions " + kPI.getImpressions());
}
}
} catch (Exception ex) {
}
When running it throws below exception.
com.microsoft.bingads.v10.adinsight.ApiFaultDetail_Exception: Invalid client data. Check the SOAP fault details for more information
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at org.apache.cxf.interceptor.ClientFaultConverter.processFaultDetail(ClientFaultConverter.java:182)
at org.apache.cxf.interceptor.ClientFaultConverter.handleMessage(ClientFaultConverter.java:82)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
at org.apache.cxf.interceptor.AbstractFaultChainInitiatorObserver.onMessage(AbstractFaultChainInitiatorObserver.java:113)
at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.handleMessage(SOAPHandlerInterceptor.java:140)
at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.handleMessage(SOAPHandlerInterceptor.java:71)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
at org.apache.cxf.endpoint.ClientImpl.onMessage(ClientImpl.java:798)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1638)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:1527)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1330)
at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56)
at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:638)
at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:514)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:423)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:326)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:279)
at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:96)
at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:138)
at com.sun.proxy.$Proxy59.getHistoricalKeywordPerformance(Unknown Source)
at test.BingApi.main(BingApi.java:88)

For starters you'll need to specify the required elements in the GetHistoricalKeywordPerformance request i.e. Keywords, Language, and MatchTypes. If you are still blocked, try using a web traffic capture tool to view the SOAP request and response. For more information please see the troubleshooting guide. I hope this helps!

Javassist CannotCompileException when trying to add a line to create a Map

um trying to instrument a method to do the following task.
Task - Create a Map and insert values to the map
Adding System.out.println lines wouldn't cause any exception. But when i add the line to create the Map, it throws a cannotCompileException due to a missing ;. When i print the final string it doesn't seem to miss any. What am i doing wrong here.
public void createInsertAt(CtMethod method, int lineNo, Map<String,String> parameterMap)
throws CannotCompileException {
StringBuilder atBuilder = new StringBuilder();
atBuilder.append("System.out.println(\"" + method.getName() + " is running\");");
atBuilder.append("java.util.Map<String,String> arbitraryMap = new java.util.HashMap<String,String>();");
for (Map.Entry<String,String> entry : parameterMap.entrySet()) {
}
System.out.println(atBuilder.toString());
method.insertAt(1, atBuilder.toString());
}
String obtained by printing the output of string builder is,
System.out.println("prepareStatement is
running");java.util.Map arbitraryMap = new
java.util.HashMap();
Exception received is,
javassist.CannotCompileException: [source error] ; is missing
at javassist.CtBehavior.insertAt(CtBehavior.java:1207)
at javassist.CtBehavior.insertAt(CtBehavior.java:1134)
at org.wso2.das.javaagent.instrumentation.InstrumentationClassTransformer.createInsertAt(InstrumentationClassTransformer.java:126)
at org.wso2.das.javaagent.instrumentation.InstrumentationClassTransformer.instrumentMethod(InstrumentationClassTransformer.java:100)
at org.wso2.das.javaagent.instrumentation.InstrumentationClassTransformer.transform(InstrumentationClassTransformer.java:37)
at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:424)
at sun.instrument.InstrumentationImpl.retransformClasses0(Native Method)
at sun.instrument.InstrumentationImpl.retransformClasses(InstrumentationImpl.java:144)
at org.wso2.das.javaagent.instrumentation.Agent.premain(Agent.java:39)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:382)
at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:397)
Caused by: compile error: ; is missing
at javassist.compiler.Parser.parseDeclarationOrExpression(Parser.java:594)
at javassist.compiler.Parser.parseStatement(Parser.java:277)
at javassist.compiler.Javac.compileStmnt(Javac.java:567)
at javassist.CtBehavior.insertAt(CtBehavior.java:1186)
... 15 more
(Is there any way to debug these kind of issues.) Some help please.....

Javassist's compiler doesn't support generics. Either remove or comment them out:
.append("java.util.Map arbitraryMap = new java.util.HashMap();")
or
.append("java.util.Map/*<String,String>*/ arbitraryMap = new java.util.HashMap/*<String,String>*/();")
The latter is useful as comment for yourself only, of course, it has no special meaning for Javassist.

Activating a user account on creation in AD LDS

So, I'm writing code that will create user accounts in AD LDS. I can create the user, but the account is disabled.
I want the user to be active and to be able to change their password. I've tried some of the things suggested in this post, but it hasn't helped me.
Here's my code:
ctx = getConnection(adminUser, adminPassword);
// Create attributes for the new user
Attributes attributes = new BasicAttributes(true);
// Main attributes for user
attributes.put("objectClass", "user");
attributes.put("name", user.getFullName());
attributes.put("ms-DS-User-Account-Control-Computed",
Integer.toString(UF_NORMAL_ACCOUNT + UF_PASSWORD_EXPIRED));
try {
ctx.createSubcontext(getDistinguishedName(user.getFullName()),
attributes);
System.out.println("User successfully added!");
} catch (NamingException e) {
e.printStackTrace();
}
When I run this, I get the following error:
javax.naming.directory.NoSuchAttributeException: [LDAP: error code 16
- 00000057: LdapErr: DSID-0C090D11, comment: Error in attribute conversion operation, data 0, v23f0remaining name 'CN=Samuel
King,CN=Users,CN=Agents,DC=CHESA,DC=local' at
com.sun.jndi.ldap.LdapCtx.mapErrorCode(Unknown Source) at
com.sun.jndi.ldap.LdapCtx.processReturnCode(Unknown Source) at
com.sun.jndi.ldap.LdapCtx.processReturnCode(Unknown Source) at
com.sun.jndi.ldap.LdapCtx.c_createSubcontext(Unknown Source) at
com.sun.jndi.toolkit.ctx.ComponentDirContext.p_createSubcontext(Unknown
Source) at
com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.createSubcontext(Unknown
Source) at
com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.createSubcontext(Unknown
Source) at
javax.naming.directory.InitialDirContext.createSubcontext(Unknown
Source) at
com.ceiwc.ActiveDirectory.createUserAccount(ActiveDirectory.java:114)
at com.ceiwc.TestAD.main(TestAD.java:24)
If I change the line where I'm updating the ms-DS-User-Account-Control-Computed to:
attributes.put("ms-DS-User-Account-Control-Computed", UF_NORMAL_ACCOUNT
+ UF_PASSWORD_EXPIRED);
i get the following error:
javax.naming.directory.InvalidAttributeValueException: Malformed
'ms-DS-User-Account-Control-Computed' attribute value; remaining name
'CN=Samuel King,CN=Users,CN=Agents,DC=CHESA,DC=local' at
com.sun.jndi.ldap.LdapClient.encodeAttribute(Unknown Source) at
com.sun.jndi.ldap.LdapClient.add(Unknown Source) at
com.sun.jndi.ldap.LdapCtx.c_createSubcontext(Unknown Source) at
com.sun.jndi.toolkit.ctx.ComponentDirContext.p_createSubcontext(Unknown
Source) at
com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.createSubcontext(Unknown
Source) at
com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.createSubcontext(Unknown
Source) at
javax.naming.directory.InitialDirContext.createSubcontext(Unknown
Source) at
com.ceiwc.ActiveDirectory.createUserAccount(ActiveDirectory.java:116)
at com.ceiwc.TestAD.main(TestAD.java:24)
So, what am I doing wrong? Is this the proper way to activate the account? Does someone have any code to help me out?
Thanks!

NuAlphaMan,
I think, that the exception has something to do with the fact that you use CN as the name of the attribute instead of Ldap-Display-Name which is msDS-User-Account-Control-Computed. The description could be found here http://msdn.microsoft.com/en-us/library/windows/desktop/ms677840(v=vs.85).aspx.
As to the second question of how to activate an account, I've found that there is an attribute userAccountControl (http://msdn.microsoft.com/en-us/library/windows/desktop/ms680832(v=vs.85).aspx#win_2008_r2) and the value 0x00000002 (ADS_UF_ACCOUNTDISABLE) that can disable an account. The only thing that crosses my mind is to try to read the value and flip the bit.
Regards, Dmitry

NoSuchAttributeException: "Indicates that the attribute specified in the modify or compare operation does not exist in the entry."
Malformed 'ms-DS-User-Account-Control-Computed' attribute value: means wrong attribute type.
here is my working example, that i check with ActiveDirectory 2008:
public void mapToContext(int userAccountControl, DirContextAdapter context) {
context.setAttributeValue("userAccountControl", disableAccount(userAccountControl));
}
private String disableAccount(int userAccountControl) {
userAccountControl |= AccountControlFlags.ACCOUNTDISABLE;
return String.valueOf(userAccountControl);
}

Exceptions being thrown with getting a status with twitter4j?

I was trying to follow the docs here: https://github.com/yusuke/twitter4j/blob/master/twitter4j-examples/src/main/java/twitter4j/examples/tweets/ShowStatus.java but appear to have gone wrong somewhere. I'm trying to do something slightly different then the docs however. I am not taking args, and am using a hardcoded username instead. Here is the code that is troubling.
import twitter4j.Twitter;
import twitter4j.Status;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
public class ChrisTwitter {
public Status status;
public ChrisTwitter (){
Twitter twitter = new TwitterFactory().getInstance();
try {
Status status = twitter.showStatus(Long.parseLong("rye761"));
System.out.println("#" + status.getUser().getScreenName() + " - " + status.getText());
}
catch (TwitterException e) {
e.printStackTrace();
}
}
}
any ideas? Oh and here is what I get in the console: (new stack trace)
Exception in thread "AWT-EventQueue-0" java.lang.Error: Unresolved compilation problems:
TwitterFactory.getInstance cannot be resolved to a type
The method Page(int, int) is undefined for the type ChrisTwitter
at com.github.ryebread761.lockergnome.ChrisTwitter.<init>(ChrisTwitter.java:16)
at com.github.ryebread761.lockergnome.Base$CTListener.actionPerformed(Base.java:121)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2028)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2351)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6375)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6140)
at java.awt.Container.processEvent(Container.java:2083)
at java.awt.Component.dispatchEventImpl(Component.java:4737)
at java.awt.Container.dispatchEventImpl(Container.java:2141)
at java.awt.Component.dispatchEvent(Component.java:4565)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4619)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4280)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4210)
at java.awt.Container.dispatchEventImpl(Container.java:2127)
at java.awt.Window.dispatchEventImpl(Window.java:2482)
at java.awt.Component.dispatchEvent(Component.java:4565)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:684)
at java.awt.EventQueue.access$000(EventQueue.java:85)
at java.awt.EventQueue$1.run(EventQueue.java:643)
at java.awt.EventQueue$1.run(EventQueue.java:641)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
at java.awt.EventQueue$2.run(EventQueue.java:657)
at java.awt.EventQueue$2.run(EventQueue.java:655)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:654)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

You're trying to parse an alphanumeric string to long and that's throwing the NumberFormatException:
Status status = twitter.showStatus(Long.parseLong("rye761"));
Since you're not catching a NumberFormatException in your try-catch block the exception propagates. To prevent this you should validate the input you try to parse before doing so or adding an aditional catch for that NumberFormatException.
EDIT
To get the latest tweet of an user, you can take this approach:
First of all define the paging of your request. In this case just ask for one page and one tweet per page (If I'm not mistaken it will be the latest one). Then you issue the request directly, since you're consulting a tweet and you're not doing anything else you don't need to authenticate AFAIK.
Twitter latestTweetChecker = new TwitterFactory.getInstance();
Paging page = Page(1,1);
List<Status> statusList = latestTweetChecker.getUserTimeline("rye761",page);
There, you'll have the status you need. Just grab the information you need with the corresponding methods.

Long.parseLong("rye761")
Even though input for parseLong is of format String, characters in the String must be all decimal digits, which is not case with rye761. So, you are getting exception
The characters in the string must all be decimal digits, except that
the first character may be an ASCII minus sign '-' (\u002D') to
indicate a negative value.