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I was working with seemingly simple load job in Redshift. I was generating some data and wanted to store the output in separate table, just to persist it for debugging purposes. However, since the job could be reran if needed, I wanted to remove rows generated previously and add new ones. So I tried the … Continue reading Aborted transactions in Redshift due to Serializable isolation level
Recently I was working with the following code: I was compiling it with on Windows 10 x64. It wasn’t working because of the following: You can try reproducing the issue at compilejava.net, it throws the error at the moment. I was almost sure that it was a bug in javac, especially that the code was … Continue reading Erasure type inference issue in Java
This is the fourth part of the JVM Inside Out series. For your convenience you can find other parts in the table of contents in Part 1 — Getting object address Typical locking pattern in Java (and other languages, even outside them JVM ecosystem) looks like this: Simple enough, nothing should break here. However, there … Continue reading JVM Inside Out Part 4 — Locks and out of band exceptions
This is the third part of the JVM Inside Out series. For your convenience you can find other parts in the table of contents in Part 1 — Getting object address Erasure in Java seems pretty easy but sometimes it has unexpected consequences. One of them is erasure of whole class content, not only the … Continue reading JVM Inside Out Part 3 — Java raw type trickery
Today we will remove Content Security Policy (CSP) header from pages hosted in web view. Technically it doesn’t matter which web view you use (whether it is IE, dotnetbrowser, CEF or whatever else). It all goes down to the same: we need to modify the server response. We need to setup a web proxy handling … Continue reading Removing Content Security Policy header from pages hosted in web view