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JAVA QUESTIONS

Shiro Session Clustering with Hazelcast, not on the Web
Shiro Session Clustering with Hazelcast, not on the Web
around this issue I think my error was in my actual Java code, not in the configuration files:In all my initial tests, running the service on a single server, I used this to get the current Shiro user:
TAG : java
Date : November 22 2020, 09:00 AM , By : Rondrivera
InputStream or Reader. Method with same logic
InputStream or Reader. Method with same logic
To fix the issue you can do You can create two methods using overloading to mean that each takes one of the inputs you want to support.Define an interface with the functionality you need to access from the two methods and then write wrapper classes i
TAG : java
Date : November 22 2020, 09:00 AM , By : Hunter
Struts 1.2 decrease float precision in <bean:write> tag
Struts 1.2 decrease float precision in <bean:write> tag
wish helps you I have the following code in my jsp : , I found the solution, I just discovered the format attribute :
TAG : java
Date : November 22 2020, 09:00 AM , By : Yassodude
My script is not creating new row after last filled row
My script is not creating new row after last filled row
hope this fix your issue How I understood the problem I don't know if I understood your question correctly.
TAG : java
Date : November 22 2020, 09:00 AM , By : lufl2
Building JDK 8 sources with Eclipse
Building JDK 8 sources with Eclipse
will help you The sources of the JDK are located in JDK_HOME/src.zip Unzip this archive in the folder of your choice. Create a new Java Project under Eclipse Import the content of src.zip into your new project. The compiler will raise several errors.
TAG : java
Date : November 22 2020, 09:00 AM , By : Todd Schluechtermann
How to deal with visualization of java.util.Date with a custom timezone in JSF
How to deal with visualization of java.util.Date with a custom timezone in JSF
wish of those help Finally I found a different solution, based on the fact that it is not necessary to keep the original timezone the ticket was created for. I now simply use java.util.Date in the backing bean for the date picker component and conver
TAG : java
Date : November 22 2020, 09:00 AM , By : Minca Andrei
Why am I getting an IllegalFormatConversionException?
Why am I getting an IllegalFormatConversionException?
To fix the issue you can do %d is to display integers. If you want to display String as your bg.toString() you must use %s and format it properly.See http://docs.oracle.com/javase/7/docs/api/java/util/Formatter.html for all formatter options.
TAG : java
Date : November 22 2020, 09:00 AM , By : Herczeg Norbert
Error adding timestamp to log file name (log4j2)
Error adding timestamp to log file name (log4j2)
Any of those help The FileAppender only accepts a file name, not a pattern. You can use a lookup to get the date if that is what you want.
TAG : java
Date : November 22 2020, 09:00 AM , By : NawabSaheb
Generate a single .jar with only androidTest code
Generate a single .jar with only androidTest code
Hope that helps There is a special gradle task to run tests on connected device or emulator
TAG : java
Date : November 22 2020, 09:00 AM , By : Edward Hura
getWindowHandles return one window handle if multiple tabs are open in single window
getWindowHandles return one window handle if multiple tabs are open in single window
wish help you to fix your issue This is working as intended according to the FirefoxDriver team. See their response at https://github.com/SeleniumHQ/selenium/issues/1614:
TAG : java
Date : November 22 2020, 09:00 AM , By : Mike Kisling
Multiple click events fire on a single click GWT
Multiple click events fire on a single click GWT
I hope this helps . I have a FlexTable and have a click event associated with it. It happens sometimes that events are trigerred multiple times. Sometimes up to 10 times on a single click. I have checked for multiple event handlers but I have only on
TAG : java
Date : November 22 2020, 09:00 AM , By : KAKYHAC
Android - Set TextColor ListItem on an AlertDialog with list programatically
Android - Set TextColor ListItem on an AlertDialog with list programatically
help you fix your problem I have an AlertDialog where a user must choose between several options. The default color scheme for this is white text on a darkgrey background. In the App users can configure their own color which are suppose to match with
TAG : java
Date : November 22 2020, 09:00 AM , By : Kwame Johnson
Using an object from main class in another class
Using an object from main class in another class
fixed the issue. Will look into that further Your Forward class obviously needs a reference to the two motor instances. You should forward (no pun intended) them at construction time:
TAG : java
Date : November 22 2020, 09:00 AM , By : mike2500
Trying to get text from a text field to move to a text area
Trying to get text from a text field to move to a text area
Any of those help , This will solve the issues in your code :
TAG : java
Date : November 21 2020, 09:01 AM , By : Marťas Nééymarék Otr
Random Image Generation on Android by tapping on ImageView
Random Image Generation on Android by tapping on ImageView
Hope this helps I think your problem comes from the fact that you use the same instance of Random() over the lifetime of your Activity. Java's Random is a pseudo random number generator, meaning that you can get the same values multiple times. When y
TAG : java
Date : November 21 2020, 09:01 AM , By : tonymu
What does the new keyword do here?
What does the new keyword do here?
I wish did fix the issue. new my_class() creates a new object of type my_class. It is not assigned; so it is discarded.But before being discarded, the object is built anyway; the constructor is run and prints its object's a attribute value. 8.
TAG : java
Date : November 21 2020, 09:01 AM , By : Dtaivpp
Java Spring boot Service bean creation order
Java Spring boot Service bean creation order
around this issue By default, Spring uses the dependencies of your services to determine the order in which it creates your services.If you want finer control about when your services are created (i.e. create one service after all others, even though
TAG : java
Date : November 21 2020, 09:01 AM , By : Jitendra Singh
MongoCursor has no count() method?
MongoCursor has no count() method?
I hope this helps . The count method can now be found in MongoCollection:
TAG : java
Date : November 21 2020, 09:01 AM , By : cscott
Why does the JVM allow be to pass a B[] to a method that expects an A[]?
Why does the JVM allow be to pass a B[] to a method that expects an A[]?
I think the issue was by ths following , After Type Erasure, T will be turned into Object since you didn't specify a bound on T. So, there is no problem at runtime assigning any type of array to genericTypeArray, which is now of type Object[] or call
TAG : java
Date : November 21 2020, 09:01 AM , By : Keith Petrone
Java replace string string by other string
Java replace string string by other string
will be helpful for those in need I want to replace 1 by 1Min, 5 by 5Min, 10 by 10Min, 15 by 15Min,60 by 1Hour, 360 by 6Hours etc. , You could try something like this:
TAG : java
Date : November 21 2020, 09:01 AM , By : harta bet
JBAS011843: Failed instantiate InitialContextFactory com.ibm.websphere.naming.WsnInitialContextFactory
JBAS011843: Failed instantiate InitialContextFactory com.ibm.websphere.naming.WsnInitialContextFactory
I hope this helps you . Since you are migrating to Jboss from WebSphere and you are using "com.ibm.websphere.naming.WasInitialContextFactory" class, which is WAS specific class, that's why you are getting this error. Change that to "org.jboss.naming.
TAG : java
Date : November 21 2020, 09:01 AM , By : John
Double variable input
Double variable input
To fix this issue Besides the error in trying to do the math before you have your numbers, you also need to declare your variables inside your main method or make your variables static.
TAG : java
Date : November 21 2020, 09:01 AM , By : Mohammad abbaszadeh
Proper way for getting annotations of Java-Methods in custom Sonar rules
Proper way for getting annotations of Java-Methods in custom Sonar rules
seems to work fine The first way is prefered and should work for every method call, even within the same class. If it does not work it probably means that the method invoked is not resolved from semantic (which is why the symbol is set to unknown, th
TAG : java
Date : November 21 2020, 09:01 AM , By : RD Mason
How to bind a JavaFX 8 object to a java variable?
How to bind a JavaFX 8 object to a java variable?
Does that help Solution 1: Use a StringPropertyUse a StringProperty and a custom serialized form to make the class Serializable:
TAG : java
Date : November 21 2020, 09:01 AM , By : Jairo Granado
CDI producer method not working if defining class doesn't declare a scope
CDI producer method not working if defining class doesn't declare a scope
should help you out From the CDI spec:
TAG : java
Date : November 21 2020, 09:01 AM , By : fergpichel
Java ArrayList does not use overriden equals(Object o) method to compare
Java ArrayList does not use overriden equals(Object o) method to compare
wish helps you I searched for solution everywhere, but I couldn't find any mistake in my code. Why does ArrayList's contains(Object o) does not run my overridden equals(Object o) method? Consider this code: , You test
TAG : java
Date : November 21 2020, 09:01 AM , By : calimblocky
Reference FragmentActivity to external Interface
Reference FragmentActivity to external Interface
fixed the issue. Will look into that further If the function you want to call is already in the Activity then you can do something like the code below and it will work - The key is, in the Fragment you have a method called getActivity() which you can
TAG : java
Date : November 21 2020, 09:01 AM , By : Brady Gray
Round float to closer (or closest one)
Round float to closer (or closest one)
like below fixes the issue I have some "reference" float numbers (1.5, 3 and 7.1 for example), is there any way how to get some other "random" float rounded to closest one from the brackets? (I mean if there's something like round, which can takes re
TAG : java
Date : November 21 2020, 09:01 AM , By : Snix
Reconfusing myself over java and compile version
Reconfusing myself over java and compile version
it should still fix some issue You have different versions of Java installed in your system and your path seem to be pointed to the oldest version of Java. What you have to do is, set the path such that it find the latest version of Java. Do the foll
TAG : java
Date : November 21 2020, 09:01 AM , By : Alex Salmon
RequestFactory Entity's parameter: List<OfOtherEntity> is null on client. On server is ok
RequestFactory Entity's parameter: List<OfOtherEntity> is null on client. On server is ok
may help you . By default gwt does not attach collection entities when fetching the object. You need to use the .with("ingredients") on your rf request. Make sure you have a getIngredients method in your pizza class. The rf request context will use t
TAG : java
Date : November 21 2020, 09:01 AM , By : Sole
Prime Number Java
Prime Number Java
I wish this help you It seems to me that you need to reset isPrime to true inside the loop, at the moment you only set it once, not for each iterator across the numbers.As a result your test for prime numbers fails after it find the first composite n
TAG : java
Date : November 21 2020, 09:01 AM , By : tsakane ofentse
Nullpointer exception - JAVA Mockito
Nullpointer exception - JAVA Mockito
wish helps you You're mixing Junit3's TestCase and JUnit4's @Before and @After annotations.Looking to the javadoc of TestCase you read:
TAG : java
Date : November 21 2020, 09:01 AM , By : kvdv
How to unwrap StreamEx to a "Plain Old Java Stream"?
How to unwrap StreamEx to a "Plain Old Java Stream"?
Any of those help There's no public API method to "unwrap" the StreamEx stream. This is done on purpose. In general the StreamEx class is compatible with original Stream API, so if you need to pass StreamEx to some code accepting simple Stream, you c
TAG : java
Date : November 21 2020, 09:01 AM , By : Sunsinron
How to add spaces to triangles
How to add spaces to triangles
help you fix your problem So I've been at this for a while and I have am not sure how to do this so my professor wants us to print out triangles using for statements I accomplished this. But I have to add spaces to different columns in two of these t
TAG : java
Date : November 21 2020, 09:01 AM , By : Raghava Reddy
Matching Card Game, in Java The JButton won't show the Icon before removing it or changing Icon to null
Matching Card Game, in Java The JButton won't show the Icon before removing it or changing Icon to null
it helps some times instead of showing the second card then a delay and then removing both cards or just removing the icon... the delay holds the button in the pressed down position and never shows the second icon
TAG : java
Date : November 21 2020, 09:01 AM , By : Azazavr
FakeFtpServer with Apache camel - fake user can't even login?
FakeFtpServer with Apache camel - fake user can't even login?
I wish did fix the issue. There are few things to correct. the user home in the UserAccount is manadory for the WindowsFakeFileSystem you need to instruct Camel not to step into each directory (see stepwise changing directories, otherwise the access
TAG : java
Date : November 21 2020, 09:01 AM , By : Антон Александрович
Using JPA/Hibernate and Entity update column on unique contraint violation
Using JPA/Hibernate and Entity update column on unique contraint violation
will help you There is no out-of-the-box mechanism that will do this for you. A common way to handle this situation is to first do a search by input parameters, and depending on the output do a save or update
TAG : java
Date : November 21 2020, 09:01 AM , By : Bollado
How to tell if an image contains a "handwritten signature"?
How to tell if an image contains a "handwritten signature"?
I wish did fix the issue. This is the code I've used in the past for checking for a signature. It assumes that an image has a Bytes per pixel of 3.The MAX_BLACK_VALUE number comes from the max value for a colour of a pixel (255) multiplied by 3 (beca
TAG : java
Date : November 21 2020, 09:01 AM , By : sgalloway
Java 303 / 349 start date before end date validation
Java 303 / 349 start date before end date validation
wish of those help Is there a better way of writing a Java validator which ensures that a start date is before an end date than writing a class level ConstraintValidator in the following manner: , One way would be to add an interface to MyBean
TAG : java
Date : November 21 2020, 09:01 AM , By : yhuelf
Getting a org.hibernate.StaleStateException during hibernate saveOrUpdate()
Getting a org.hibernate.StaleStateException during hibernate saveOrUpdate()
This might help you Using double as a primary key is probably a bad idea. From the postgreSQL documentation:
TAG : java
Date : November 21 2020, 09:01 AM , By : Tony
Adding words and checking in Arraylist Hangman
Adding words and checking in Arraylist Hangman
I wish did fix the issue. I'm having trouble with adding words and using do while in my code: , Structure your code, e.g. as follows:
TAG : java
Date : November 21 2020, 07:38 AM , By : Nasafato
Have installed Babel for german language. Application run in Eclipse is now german, but exported as "Eclipse produc
Have installed Babel for german language. Application run in Eclipse is now german, but exported as "Eclipse produc
Hope this helps You are on the right track, you need to add the ".nl_de" fragments to your product configuration.Your build does probably not contain those (you can check in the output "plugins" directory). So all the language parameter will not help
TAG : java
Date : November 21 2020, 07:38 AM , By : rachel
Is there any existing API to read and write to HDFS from JAVA
Is there any existing API to read and write to HDFS from JAVA
this one helps. Is there any existing API that exists to read/write from HDFS, along with best practices of how to implement it . , Below is the code snippet
TAG : java
Date : November 21 2020, 07:38 AM , By : Ritesh Ranjan SIngh
Store multiple records while reading only once Issue using Protocol Buffer
Store multiple records while reading only once Issue using Protocol Buffer
wish helps you To read multiple records, you need to call parseDelimitedFrom multiple times:
TAG : java
Date : November 21 2020, 07:38 AM , By : Ashfaq Ahmad
Java - can I use browser cookies to directly access data on a website?
Java - can I use browser cookies to directly access data on a website?
it helps some times You can install a firebug addon to firefox, then run it by F12, go to network tab, activate it, log in to your page, you will see how the request looks like. In simple scenario everything you need is a cookie by wihich the server
TAG : java
Date : November 21 2020, 07:38 AM , By : mister easter
In an Eclipse Run Configuration how to you refer to the username?
In an Eclipse Run Configuration how to you refer to the username?
it fixes the issue I've done this in the past, but can't remember how. , Use a environment variable, e.g.
TAG : java
Date : November 21 2020, 07:38 AM , By : Dxia
Extending the Eclipse C Editor with all it's functionalities
Extending the Eclipse C Editor with all it's functionalities
wish help you to fix your issue You need to fill in the contributorClass field in the org.eclipse.ui.editors extension point.From the docs:
TAG : java
Date : November 21 2020, 07:38 AM , By : Taylor Bennett
Hibernate TransientPropertyValueException When saving data
Hibernate TransientPropertyValueException When saving data
To fix the issue you can do I am trying to insert data to the DB using hibernate . Here is how I going perform that action , In your SubjectHasStuDetials.hbm.xml make these changes :
TAG : java
Date : November 21 2020, 07:38 AM , By : pvb
Performance impact of retrieving a element from a List
Performance impact of retrieving a element from a List
I hope this helps you . I don't think there exist single answer to your question, its broad and you can consider all the answers. Basically, you need to understand time complexity of HashMap and ArrayList and that would give you an idea on how your c
TAG : java
Date : November 21 2020, 07:38 AM , By : Rohan Adlakha
About java RMI. How to use LocateRegistry to getRegistry in a remote host with specified port?
About java RMI. How to use LocateRegistry to getRegistry in a remote host with specified port?
To fix this issue how can I register a Registry in a remote host with specified port?
TAG : java
Date : November 21 2020, 07:38 AM , By : raulpuro
Java inheritance error: "cannot find symbol"
Java inheritance error: "cannot find symbol"
this will help I am beginner to java!! I got cannot find symbol error in java. I google it but not found any satisfactory solution. Here is my connect.java class , Try this
TAG : java
Date : November 21 2020, 07:38 AM , By : Daniel Calvary Norte
GridLayout doesn't work with BoxInsetLayout
GridLayout doesn't work with BoxInsetLayout
This might help you I'm trying to put a GridLayout of TextViews in a BoxInsetLayout so that the TextViews will stretch to fit the BoxInset Layout. What actually happens is that the TextViews ignore the BoxInsetLayout and fill the entire screen, round
TAG : java
Date : November 21 2020, 07:38 AM , By : José Ruiz
maven add new remote repository
maven add new remote repository
Any of those help The mirrorOf pattern of * causes any repository request to be redirected to this mirror and to your single repository group, which in the example is the public group.
TAG : java
Date : November 21 2020, 07:38 AM , By : Todd
Convert string to unicode
Convert string to unicode
Hope this helps Android native its java, so.. check this:You can do it for any Java char using the one liner here:
TAG : java
Date : November 20 2020, 09:01 AM , By : Catnipp
Reversing JFrame Bounds
Reversing JFrame Bounds
this will help You need to reverse the speed (steps).Assuming the bounds are relative, at (0, 0), and one starts inside the bounds.
TAG : java
Date : November 20 2020, 09:01 AM , By : Balazs Kemenes
Page orientation in Aspose
Page orientation in Aspose
like below fixes the issue There is no concept of Page in MS Word documents. Pages are created by Microsoft Word on the fly and unfortunately there is no straight forward way that you can use to set orientation per Page. However, you can specify orie
TAG : java
Date : November 20 2020, 09:01 AM , By : junaid
Eclipse Source not found
Eclipse Source not found
Does that help You're trying to read the Source of the EventDispatchThread, but you Eclipse cant find it, since you're using a JRE.Download a JDK (Java Development Kit) and add it to Eclipse (Window => Preferences => Java => Installed JREs => Add...)
TAG : java
Date : November 20 2020, 09:01 AM , By : Daniel Kuznetov
BIRT two phases, Report Generation and Presentation
BIRT two phases, Report Generation and Presentation
hop of those help? The two phases are called "Run" and "Render". If you call BIRT from inside Java (I mean not just call the web viewer per URL), you can decide your own what you want to use. You either use a RunAndRenderTask or separate RunTask and
TAG : java
Date : November 20 2020, 09:01 AM , By : partha sarathi
Android ScheduledExecutorService
Android ScheduledExecutorService
it fixes the issue ScheduledExecutorService uses background threads, from a thread pool specified implicitly or explicitly when you create an instance from the Executors set of factory methods.Note that ScheduledExecutorService is a standard Java cla
TAG : java
Date : November 20 2020, 09:01 AM , By : Buizel
Will a synchronized block help me in this situation?
Will a synchronized block help me in this situation?
I wish did fix the issue. You need to synchronize all reading and writing operations to the object on the same monitor object. Otherwise it is possible for other threads to change the value while the current thread is running. So I would suggest to u
TAG : java
Date : November 20 2020, 09:01 AM , By : Eitan Mizrahi

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