Andrey Hihlovskiy

Professional blog on groovy, gradle, Java, Javascript and other stuff.

Monthly Archives: March 2014

Gretty 0.0.14 is out!

Hello there,

Gretty version 0.0.14 is out – on github, on maven central and jcenter!

What’s new: now Gretty supports jvmArgs parameter in plugin extension. See more information in what’s new section of the documentation.

Gretty is a feature-rich Gradle plugin, designed for running Web-Applications on Jetty. See more information in main features section of the documentation.

Many thanks to Justin Munn for contribution!

What is the cardinality of the Euclidean topology?

David Richeson: Division by Zero

I’m teaching topology this semester. The students are looking at different topologies on the real number line. For homework I asked them to think about which topologies are “the same” (if any) and which are “different,” and why they thought that was the case. We haven’t yet talked about continuous maps or homeomorphisms, so I told them that two topologies were the same if we could rename all of the points so that one topology turned into the other.

They came back with the answers I expected. For example, the trivial topology has only two open sets and all the others have infinitely many, so the trivial topology must be different from the rest. One-point sets are open in the discrete topology, but not in any of the others, so it must be different from the rest.

One student pointed out that the discrete topology is the power set of…

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Gretty version 0.0.13 is out!

Gretty is a feature-rich gradle plugin for running web-applications under jetty.

New in version 0.0.13:

  • support of META-INF/web-fragment.xml and META-INF/resources
  • integration tests for most of the examples
  • integration of the build scripts with bintray and availability of the new version on jcenter

Full sources, documentation and examples:

Gretty 0.0.13 artifacts are available both on maven central and on jcenter under the group “org.akhikhl.gretty”.