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JAVA QUESTIONS

Sendgrid v3: "Substitutions may not be used with dynamic templating"
Sendgrid v3: "Substitutions may not be used with dynamic templating"
Any of those help V3 of the Sendgrid API uses Dynamic Template Data instead of substitutions.Try this instead of using addSubstitution:
TAG : java
Date : November 22 2020, 07:01 PM , By : Koh Wei Long
Application freezes when running method
Application freezes when running method
like below fixes the issue You have to create a new Thread to handle the copying in a new thread and not the UI thread
TAG : java
Date : November 22 2020, 07:01 PM , By : fnu Kanchan
Maven versioning using git branches
Maven versioning using git branches
seems to work fine I have some concerns: You usually put the whole multi-module project into one git repository. Then you branch on the whole project, not on single modules. The whole project usually has a version number in x.y.z-SNAPSHOT form which
TAG : java
Date : November 22 2020, 07:01 PM , By : knockem
does a Java getter incur a performance penalty
does a Java getter incur a performance penalty
To fix the issue you can do The JIT compiler will inline the method.The code should look like
TAG : java
Date : November 22 2020, 07:01 PM , By : user3862327
Open Source Implementation of Checkers
Open Source Implementation of Checkers
I wish did fix the issue. I found this on Google: Java Checkers.The source code is below it.
TAG : java
Date : November 22 2020, 07:01 PM , By : dBelfiori
How can I make a resizable array in Java?
How can I make a resizable array in Java?
I hope this helps . As an alternative, you could use an ArrayList. It is a resizable-array implementation of the List interface.Usage (using String):
TAG : java
Date : November 22 2020, 07:01 PM , By : mchev
Change size of ImageIcon in a JRadioButton
Change size of ImageIcon in a JRadioButton
around this issue There are no icons added to a JRadioButton. The UI just paints Icons as needed so you can't use the getIcon...() methods to get the icons and scale then. So as a work around you need to create your own image of the icons first befor
TAG : java
Date : November 22 2020, 07:01 PM , By : FRM
Java memory mapped files and swap
Java memory mapped files and swap
wish of those help Linux doesn't really distinguish between anonymous and memory-mapped pages. They all get demand-loaded anyway via page faults.You can think of anonymous memory as if it was a private memory mapping of /dev/zero.
TAG : java
Date : November 22 2020, 07:01 PM , By : user3862239
JAXB Annotated class - setting of a variable which is not an element
JAXB Annotated class - setting of a variable which is not an element
fixed the issue. Will look into that further Try putting the annotations on the methods rather than on the fields. Specifically, put @XmlElement on getName() and getAddress(), put @XmlTransient on getSet(), and remove all the annotations from the fie
TAG : java
Date : November 22 2020, 07:01 PM , By : Akash Akki
JSF don't find component in view root with the form id
JSF don't find component in view root with the form id
I think the issue was by ths following , You should use component binding or UIViewRootfindComponent(). But that won't solve the problem of the uploaded file not being set. To fix it, first step is to ensure that you definied and configured the Exten
TAG : java
Date : November 22 2020, 07:01 PM , By : user3862226
Using Mockito, how do I match against the key-value pair of a map?
Using Mockito, how do I match against the key-value pair of a map?
it helps some times I found this trying to solve a similar issue creating a Mockito stub with a Map parameter. I didn't want to write a custom matcher for the Map in question and then I found a more elegant solution: use the additional matchers in ha
TAG : java
Date : November 22 2020, 07:01 PM , By : user3862203
How do I run my application as superuser from Eclipse?
How do I run my application as superuser from Eclipse?
hop of those help? You can follow these steps to compile/debug applications as superuser.
TAG : java
Date : November 22 2020, 07:01 PM , By : AAM
Spring-Security: Call method after authentication
Spring-Security: Call method after authentication
this will help probably will be usefull for someone... In case of Spring 3, configure security:
TAG : java
Date : November 22 2020, 07:01 PM , By : user3862153
How can I add a password to this JDBC:ODBC connection string that is trying to connect to an MS Access database
How can I add a password to this JDBC:ODBC connection string that is trying to connect to an MS Access database
will be helpful for those in need Referenced from here: Java Support
TAG : java
Date : November 22 2020, 07:01 PM , By : JProgrammer
java.sql.SQLException: database locked
java.sql.SQLException: database locked
it should still fix some issue Connection needs to be closed after each query. If any of the connections still persist. I had got the same error on Java desktop apps, now solved.
TAG : java
Date : November 22 2020, 07:01 PM , By : user3862110
Json Jackson deserialization without inner classes
Json Jackson deserialization without inner classes
it should still fix some issue There should be no difference between the static inner class Name, and the top-level class of the same name. The Jackson runtime should not be able to meaningfully distinguish between the two situations.Have you tried m
TAG : java
Date : November 22 2020, 07:01 PM , By : Sundjer Bob
Error starting modern compiler
Error starting modern compiler
hop of those help? Hi guys I was also getting the same problem while running the following "ant build" , Since I was not aware of this term "Error starting modern compiler" so I run command with verbos log option i.e "ant -v build" and finally gettin
TAG : java
Date : November 22 2020, 07:01 PM , By : user3862075
Generate a random number in interval [0,360) which is divisible by number 15
Generate a random number in interval [0,360) which is divisible by number 15
I wish did fix the issue. Welcome to SO Michal!One easy way to accomplish this is to generate a random number less than 24 (=360/15), then multiply the result by 15:
TAG : java
Date : November 21 2020, 07:01 PM , By : Brian Keefe
Rotate watermark text at 45 degree angle across the center Apache PDFBox
Rotate watermark text at 45 degree angle across the center Apache PDFBox
I hope this helps . What I do is to first rotate based on the calculated angle. In this "rotated world" I do a horizontal offset so that the text is in the middle, and also move the text vertically a bit lower, so that it is in the "vertical" middle
TAG : java
Date : November 21 2020, 07:01 PM , By : Krishna
Generate Random number in a range with no repeatation
Generate Random number in a range with no repeatation
may help you . By shuffling the list you have all numbers from 0 to 49 randomly positioned in the list:
TAG : java
Date : November 21 2020, 07:01 PM , By : torustad
Starting HBASE, java.lang.ClassNotFoundException: org.apache.htrace.SamplerBuilder
Starting HBASE, java.lang.ClassNotFoundException: org.apache.htrace.SamplerBuilder
I think the issue was by ths following , HBase 2.1.0 release uses HTrace, that is an incubating Apache Foundation project.There is a folder for 3rd-party libraries in HBase lib folder, client-facing-thirdparty. You need to copy htrace-core-3.1.0-incu
TAG : java
Date : November 21 2020, 07:01 PM , By : nichrun
Using getter and setter methods inside a class in my main class
Using getter and setter methods inside a class in my main class
Hope that helps I have to write a program that writes a class called "Employee" that holds information about an employees name and salary. Then I need to use that information inside my main class to set the employee information then get the employee
TAG : java
Date : November 21 2020, 07:01 PM , By : Naga namrata
java: <identifier> expected with ArrayList
java: <identifier> expected with ArrayList
wish of those help You can't call methods like that just in the class body. You have to put methods calls in other methods, or in a constructor.You want this:
TAG : java
Date : November 21 2020, 07:01 PM , By : user3861991
Java Reflection, java.lang.IllegalAccessException Error
Java Reflection, java.lang.IllegalAccessException Error
Does that help what function are you trying to execute exactly? looks to me like you are just picking the first method without actually checking what it is. try to pick a specific method which is public.
TAG : java
Date : November 21 2020, 07:01 PM , By : Arun Dharmar
Looking for a lightweight java-compatible in-memory key-value store
Looking for a lightweight java-compatible in-memory key-value store
I think the issue was by ths following , You can try Hazelcast. Just add hazelcast.jar to your classpath. And start coding
TAG : java
Date : November 21 2020, 07:01 PM , By : user3861898
What is your development checklist for Java low-latency application?
What is your development checklist for Java low-latency application?
may help you . Although immutability is good, it is not necessarily going to improve latency. Ensuring low-latency is likely to be platform dependent.Other than general performance, GC tuning is very important. Reducing memory usage will help GC. In
TAG : java
Date : November 21 2020, 07:01 PM , By : user3861884
Read a line in java and then tokenize it
Read a line in java and then tokenize it
I think the issue was by ths following , I am looking for easiest way to read a line in Java. Once read, I want to tokenize the line. Any suggestions?
TAG : java
Date : November 21 2020, 07:01 PM , By : ratanraj
How to format a date using Apache Derby?
How to format a date using Apache Derby?
fixed the issue. Will look into that further Look here:DateFormat and SimpleDateFormat Examples
TAG : java
Date : November 21 2020, 07:01 PM , By : Mr Adil
Explicitly multiplying values as longs
Explicitly multiplying values as longs
should help you out I understand that all math is done as the largest data type required to handle the current values but when you transverse a loop how do you explicitly multiply longs? The following code returns 0, I suspect, because of an overflow
TAG : java
Date : November 21 2020, 07:01 PM , By : user3861768
Starting out NLP - Python + large data set
Starting out NLP - Python + large data set
help you fix your problem NLTK is where you should start from (it's Python-based -- not sure why you're already thinking about parallelizing your processing at such an early stage... start with a more flexible experimental setup, is my advice). sqlit
TAG : java
Date : November 21 2020, 07:01 PM , By : user3861752
Software Testing Tools - for java
Software Testing Tools - for java
wish help you to fix your issue Unit test frameworks: JUnit / TestNG Mocking frameworks: JMock / EasyMock / Mockito Continuous Integration tools: CruiseControl / Hudson Requirements testing: Fit / FitNesse Code coverage: Cobertura Automated UI testin
TAG : java
Date : November 21 2020, 07:01 PM , By : Nelson Quesada
JDBC transaction dead-lock: solution required?
JDBC transaction dead-lock: solution required?
should help you out I believe your friend is correct if the selects are for an update of the record(s) already updated (but not yet committed) by the other thread. If they are simply selecting data, and the JDBC framework isn't helping you by forcing
TAG : java
Date : November 21 2020, 07:01 PM , By : user3861730
Measuring the time to create and destroy a simple object
Measuring the time to create and destroy a simple object
To fix this issue That only measures the time to execute the finalize method. The vast majority of the cost of finalization will be in the special handling that the GC has to perform.
TAG : java
Date : November 21 2020, 07:01 PM , By : Adam Kamieniak
Javadoc error: "option --boot-class-path not allowed with target 11"
Javadoc error: "option --boot-class-path not allowed with target 11"
around this issue So after trying a bunch of variations at random, I think I've solved it. It seems like in JDK 10+ the -bootclasspath argument has been deprecated, and has been rolled in together with the -sourcepath argument. So by putting -sourcep
TAG : java
Date : November 20 2020, 07:00 PM , By : MattSF
How can I store values in a hashmap with <String, List<Integer>>
How can I store values in a hashmap with <String, List<Integer>>
With these it helps I have the following array , Using java-8 you could use the following all in a single line :
TAG : java
Date : November 20 2020, 07:00 PM , By : Sevilay Musddak
JDBC ODBC.. (Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException)
JDBC ODBC.. (Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException)
fixed the issue. Will look into that further EDIT: You still haven't indicated which is line 197 in the question, but I'll assume it's
TAG : java
Date : November 20 2020, 07:00 PM , By : ashraf
Unable to detect Capture Device (webcam) through JMF
Unable to detect Capture Device (webcam) through JMF
I think the issue was by ths following , Make sure that the system you're using it on contains all the required files eg On Windows it requires certain dlls. The easiest way to do this is to use the setup program. Once JMF is properly installed run J
TAG : java
Date : November 20 2020, 07:00 PM , By : xyzxyz
Audio fingerprinting library (java)
Audio fingerprinting library (java)
Any of those help This open source project called musicg can help youhttp://code.google.com/p/musicg/
TAG : java
Date : November 20 2020, 07:00 PM , By : Noha Elemary
Help matching fields between two classes
Help matching fields between two classes
around this issue You're probably better off using a Map rather than a List, you can use the enum as the key and get the values out.
TAG : java
Date : November 20 2020, 07:00 PM , By : user3861635
Access variables between nested JSP tags
Access variables between nested JSP tags
I hope this helps . I would like to exchange information between two nested JSP tagx artifacts. To give an example: , The idea is to share the data in request scope:
TAG : java
Date : November 20 2020, 07:00 PM , By : user3861618
AES Encryption Java Invalid Key length
AES Encryption Java Invalid Key length
I wish this help you For a stronger key strength encryption you would need to download Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files.http://java.sun.com/javase/downloads/index.jsp (Check Other Downloads).
TAG : java
Date : November 20 2020, 07:00 PM , By : Zain Ul Ebad
How to initiate chatting between two clients and two clients only, using applets and servlets?
How to initiate chatting between two clients and two clients only, using applets and servlets?
hop of those help? You need to store all connected users in a Map in the application scope using ServletContextsetAttribute(). The String denotes the unique user identifier (chat nickname?). You need to store the specific chat User as well in the ses
TAG : java
Date : November 20 2020, 07:00 PM , By : Alexander Senin
how to compare two wav files?
how to compare two wav files?
wish helps you Simple comparison of WAV files is not going to work. What you need is some kind of voice print software. But most of the Java speech processing software out there seems to be more focused on speech recognition (figuring out what was sa
TAG : java
Date : November 20 2020, 07:00 PM , By : Kumar
How to extract separate bytes from a wav file?
How to extract separate bytes from a wav file?
seems to work fine For file operations, you can use java.io and/or java.nio classes (for instance, java.io.FileInputStream). Either of those will give you the ability to read the bytes of any file (not just .wav files). And of course, if you want to,
TAG : java
Date : November 20 2020, 07:00 PM , By : user3861488
How to print a specific actionerror message with Struts2 validation?
How to print a specific actionerror message with Struts2 validation?
I hope this helps you . You can use the following test :For field specific error the function is : "hasFieldErrors()"
TAG : java
Date : November 20 2020, 07:00 PM , By : Mario Brassesco Garc
Dynamically class creating by using Java Reflection, java.lang.ClassNotFoundException
Dynamically class creating by using Java Reflection, java.lang.ClassNotFoundException
wish of those help Java will throw a ClassNotFoundException when you try to reflect on a class name and a class with that name cannot be located in the classpath. You should ensure that the class you are trying to instantiate is on the classpath and
TAG : java
Date : November 20 2020, 07:00 PM , By : Josh Kreutzkamp
java: save and retrieve objects as objects rather than text information?
java: save and retrieve objects as objects rather than text information?
To fix this issue This article may help you: http://java.sun.com/developer/technicalArticles/Programming/serialization/
TAG : java
Date : November 20 2020, 07:00 PM , By : VSBochkov
Java.lang.RuntimeException:setParameters failed at android.hardware.camera.native_setParameter(Native Method)
Java.lang.RuntimeException:setParameters failed at android.hardware.camera.native_setParameter(Native Method)
this will help In fact this is because of the support preview screen size of your Nexus One,See Roman Nurik answer here : RuntimeException on Camera.setParameters() on nexus one
TAG : java
Date : November 20 2020, 07:00 PM , By : user3861451
view is not rendered when returning ModelAndView
view is not rendered when returning ModelAndView
this will help Well, I found the cause for this behavior. Apparently, when I imported ModelAndView, I accidentally imported it from org.springframework.web.portlet instead org.springframework.web.servlet. anyway for your feedback.
TAG : java
Date : November 20 2020, 07:00 PM , By : jlkkline
Extend HashMap to add putChildren method
Extend HashMap to add putChildren method
wish of those help I have question, I want to develop a programme about extend the hashmap to add putchildren method.. I wrote main class, but now I want to write putChildrenValue method.. My question is : I need to implement a putChildrenValue metho
TAG : java
Date : November 20 2020, 07:00 PM , By : Shivam Garg
Metaprogramming - self explanatory code - tutorials, articles, books
Metaprogramming - self explanatory code - tutorials, articles, books
Hope this helps Welcome to the wonderful world of meta-programming :) Meta programming relates actually to many things. I will try to list what comes to my mind:
TAG : java
Date : November 20 2020, 07:00 PM , By : ashita nagpal
how to tune BufferedInputStream read()?
how to tune BufferedInputStream read()?
hope this fix your issue Given that the blob already has the concept of a buffer, it's possible that you're actually harming performance by using the BufferedInputStream at all - it may be making smaller read() calls, making more network calls than n
TAG : java
Date : November 20 2020, 07:00 PM , By : Bruce Gil Cabanacan
how to fix NoSuchElementException in my code
how to fix NoSuchElementException in my code
Any of those help Do a sc.hasNextLine() check before scanning the next line to make sure the next line exists. You don't need scanner declaration twice.
TAG : java
Date : November 19 2020, 07:01 PM , By : Martin
Could not find artifact com.sun:tools:jar:0
Could not find artifact com.sun:tools:jar:0
I think the issue was by ths following , You're on JDK 11.The JEP 220 removed both tools.jar and rt.jar from the lib folder.
TAG : java
Date : November 19 2020, 07:01 PM , By : bproof
Want to convert the list of strings to map in java 8
Want to convert the list of strings to map in java 8
I wish this helpful for you I am having a list of strings I need to put that in Map in the form of key,value pair in java 8.can someone help me. , Split the elements of the List and collect to Map:
TAG : java
Date : November 19 2020, 07:01 PM , By : Usefulness
Spring Boot JPA - Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
Spring Boot JPA - Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
Hope that helps I believe you have your dialect property set wrongspring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect
TAG : java
Date : November 19 2020, 07:01 PM , By : Rohit Gagan
java - calling synchronized method from inside synchronized while waiting
java - calling synchronized method from inside synchronized while waiting
hope this fix your issue Java's mutexes are recursive, so you can invoke a synchronized method recursively or invoke another synchronized method for which you already hold a lock. You will need to tell us what it is you are specifically trying to do,
TAG : java
Date : November 19 2020, 07:01 PM , By : Ritwik Singha
How to implement blocking request-reply using Java concurrency primitives?
How to implement blocking request-reply using Java concurrency primitives?
this one helps. The simple way would be to have a Callable that talks to the server and returns the Response.
TAG : java
Date : November 19 2020, 07:01 PM , By : nanovazquez
JAVA Excel POI API: formulas not updated
JAVA Excel POI API: formulas not updated
To fix this issue You need evaluate the formulas to update it's values. check out here:http://poi.apache.org/spreadsheet/eval.html
TAG : java
Date : November 19 2020, 07:01 PM , By : user3861318
transaction management for remote call
transaction management for remote call
hope this fix your issue Using ACID transactions for long-running remote calls might not be a good idea. Mark Little and Bruce Martin discuss the key ideas here, which might provide some good ideas on how to use compensating transactions.
TAG : java
Date : November 19 2020, 07:01 PM , By : PaulJ

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