Iterate over a Guava Multimap

A Multimap is a collection that maps keys to values, where each key may be associated with multiple values. Let…

Read More »

Guavate: tiny library bridging Guava and Java8

Java8 is great and adds some useful abstractions to the JDK that have found popularity in the Java community via…

Read More »

Throttle methods with Spring AOP and Guava rate limiter

External services or APIs may have usage limits or they just cannot handle loads of requests without failing. This post…

Read More »

Google Guava: 5 Things You Never Knew It Could Do

What are some of the lesser known features of Google Guava that every developer could use? It’s one of the…

Read More »

Using Google Guava Cache for local caching

Lot of times we would have to fetch the data from a database or another webservice or load it from…

Read More »

Spring Caching abstraction and Google Guava Cache

Spring provides a great out of the box support for caching expensive method calls. The caching abstraction is covered in…

Read More »

Testing code for excessively large inputs

When writing unit tests we mostly focus on business correctness. We do our best to exercise happy path and all…

Read More »

Building extremely large in-memory InputStream for testing purposes

For some reason I needed extremely large, possibly even infinite InputStream that would simply return the samebyte[] over and over. This way I…

Read More »

Determining Presence of Characters or Integers in String with Guava CharMatcher and Apache Commons Lang StringUtils

A recent Reddit post asked the question, “Is there a predefined method for checking if a variable value contains a…

Read More »