ScheduledExecutorService not executing a submitted task with an initialDelay of 0 time units when using scheduleWithFixedDelay or scheduleAtFixedRate. But it is executing the task when i call schedule on it Output But when I use scheduleWithFixedDelay or scheduleAtFixedRate instead of schedule the task is not…
Tag: java
Is it possible to instrument a program that also uses dynamic bytecode generation?
I am writing a Java instrumentation program that uses the built-in Instrumentation API with Javassist (v3.26.0-GA) to intercept all the method calls in the target program. Also, I have implemented a REST API service inside this program using Java Spark to send requests for starting/stopping instrumentation by…
How to debug which particular Camel Route has a kind of “CPU leak”? Is there a CU metrics per route?
We run a bunch of too different data scraping routes on our Camel instances. And at about 1 week after a start of the Camel run, the CPU resources occupied by the Camel tend to grow and never be released: As they reach 100%, the throatling starts and we miss the data. The first and very simple approach is to
Sound distortion when extracting from Jar
I have sounds in my jar file directory. I need to use these sounds and I am trying to extract them using this method: But when I extract the sounds they get distorted and I don’t know what the problem is, because it basically just copies the file. Sounds: Original, Extracted I would be very grateful if …
Azure DevOps Maven Build PIpeline – Add build id to the Manifest File
Is there a way to add the build id to the Manifest file of an EAR? I have tried adding variables, and I “think” I have added the Maven Options that I would normally put on the command line to set variables in my POM. BUt nothing seems to work. Answer The Build.BuildId is a predefined variable and …
As a user starts to type in an EditText can it append a file extension to the end?
Problem: I’ve been trying unsuccessfully to append a file extension which follows the cursor in real-time as a user types. What I’ve tried: I’ve been trying to use the .addTextChangedListener() which I think is correct, but having an issue trying to make the idea happen. Debugging shows is c…
having trouble inserting values into table with syntax error
Everytime at around “composedLine = String.format(“%s, %s, %s, %s, %s”, composedLine, values[0], values[1], values[2], values[3]);” it produces “INSERT INTO airport VALUES (, ABR, Aberdeen Regional Airport, Aberdeen” instead of “INSERT INTO airport VALUES (ABR, Aberde…
Keep prefixes in loading and writing TTL file with RDF4J
I need to load a Turtle TTL file, add some triples, then save it again. The original TTL file has a big header containing the prefixes for some namespaces. After I load the file and add the triples, the saved TTL won’t contain the prefixes, unless I specify them manually, one by one. Is there a way to k…
ClassNotFoundException: com.sun.xml.internal.ws.spi.ProviderImpl
I have added all the relevant dependencies in build.gradle file. Still, geting below error when I try to run the Invoke SOAP service. Shared dependencies section and error details. Using Java 11. There are lot of answers already on internet, but none of it seems to be working. Any Help/Suggestion would be app…
How to avoid escaping /n on each microservice in the chain? Java
For example, we are getting a json message like this from our partner: The partner wants the client to receive the message like this (without newline but with n) But we have a chain of microservices in our ecosystem and that json goes through 4 or 5 microservices which proccesing it before client can get it. …