I am attempting to create an application centered around NFC paired with multiple RFIDs. For this reason I am programming the RFIDs with NDefRecords that open a specific activity in my application. The NdefMessage doing this is as follows And my manifest for the activity I am opening uses the following intent…
Tag: java
BottomSheetDialogFragment behaviour disorder when added nested fragment in Android
I’ve a BottomSheetDialogFragment inside a RecyclerView, when is clicked a button BottomSheet is showing. BottomSheetDialog expanding when scrolling down and collapsing when scroll finished on top normally. But when I place the RecyclerView inside a fragment and lay the fragment to BottomSheetDialog; Bot…
Keycloak giving Lock wait timeout exceeded error in case Save Events enable
I am using keycloak as an Identity broker in my project. Environment setup: Keycloak version 16.1.1 deployed in k8s cluster with replica 2. Cluster configuration: In keycloak setup we want to log Login and Logout events so I enabled the Save Events and added Save Types as below Event config: Now when users lo…
how to implement ByteArrayOutputStream?
I need help with implementing an byteArrayOutputStream that stores the output from the server, which I can then read from and print. Does anyone know how to do this? Any help would be much appreciated. TCPAsk: Edit: my code is now working and it is similar to the answer (TCPClient) given below with some minor…
Validate dynamic (Span tag) Text using selenium Java
I need help with writing a logic to validate a dynamic text, below tag is having text which would be changing constantly( to 6 unique words), i need to validate if those 6 unique words are same as expected text. is there a way to validate that. Note – words are created in incremental way eg – a, a…
Stream API how to modify key and value in a map?
I have a String – Array map that looks like this What I need to do is Create a new map, where key – only numbers extracted from String like this ( key -> key.replaceAll(“\D+”,””); Value – first value from array like this value -> value[0]; Filter an array so tha…
Can another thread see an effectively immutable object in an inconsistent state if it is published with a volatile reference?
According to Java Concurrency in Action if we have the following class: and we initialise an instance of this class and publish it in a non-safe way (through a simple public field for example), then the assertCorrectness() might indeed throw an AssertionError, if called from another thread. In other words, th…
Alternative to using deprecated save method in hibernate
I am using the following code to save a person object into the database: I see that the save method is deprecated. What’s the alternative approach that we are supposed to use? Answer save() is deprecated since Hibernate 6.0. The javadoc suggests to use persist() instead. Deprecated. use persist(Object) …
Invalid property ‘projection’ of bean class
Hi I need a little help with my code. I tried solutions online but I couldn’t fix my bug. I working in java and spring with mysql and tymeleaf. My error is short: Invalid property ‘projection’ of bean class [com.bakulic.CinemaTicketShop.model.dto.requests.CreateOrUpdateProjectionDTO]: Bean p…
Parameter 0 of constructor in my class required a bean of my second class that could not be found
I know it’s a problem that is been posted 100 times, but unfortunately I am getting a Defining Bean error in my Spring Boot Application and I really do not know why. I do not see my error from launch to finish since I am defining a bean. I would appreciate any help. I’m sure it’s a stupid mi…