Update README to specify Java 17

README.md

@@ -1,4 +1,5 @@
 # igv
+
 ![Build Status](https://github.com/igvteam/igv/actions/workflows/gradle_test.yml/badge.svg)
 ![GitHub issues](https://img.shields.io/github/issues/igvteam/igv)
 ![GitHub closed issues](https://img.shields.io/github/issues-closed/igvteam/igv)
@@ -8,51 +9,54 @@ Integrative Genomics Viewer - desktop genome visualization tool for Mac, Windows
 
 ### Building
 
-These instructions are meant for developers interested in working on the IGV code.  For normal use,
-we recommend the pre-built releases available at [http://software.broadinstitute.org/software/igv/download](http://software.broadinstitute.org/software/igv/download).
+These instructions are meant for developers interested in working on the IGV code. For normal use,
+we recommend the pre-built releases available
+at [http://software.broadinstitute.org/software/igv/download](http://software.broadinstitute.org/software/igv/download).
 
-Builds are executed from the IGV project directory.  Files will be created in the 'build' subdirectory.
+Builds are executed from the IGV project directory. Files will be created in the 'build' subdirectory.
 
-IGV requires **Java 11** to build and run.   Later versions of Java should work but we build and test  on **Java 11**. Previous (versions =< 2.6.3) running on Java8 have been deprecated.
+IGV requires **Java 17** to build and run. Later versions of Java should work but we build and test on **Java 17**.
 
 NOTE: If on a Windows platform use ```./gradlew.bat'``` in the instructions below
 
 #### Folder structure and build targets
 
 The IGV bundles ship with embedded JREs from AdoptOpenJDK.
 
-* Install Gradle for your platform.  See https://gradle.org/ for details.
+* Install Gradle for your platform. See https://gradle.org/ for details.
 
-* Use ```./gradlew createDist``` to build a distribution directory (found in ```build/IGV-dist```) containing 
+* Use ```./gradlew createDist``` to build a distribution directory (found in ```build/IGV-dist```) containing
   the igv.jar and its required runtime third-party dependencies as well as helper scripts for launching.
 
     * Launch IGV with `igv.sh` or `igv_hidpi.sh` on Linux, `igv.command` on Mac, and `igv.bat` on Windows.
 
     * To run igvtools from the command line use the script `igvtools` on Linux and Mac, or igvtools.bat
-      on Windows.  See the instructions in igvtools_readme.txt in that directory.
+      on Windows. See the instructions in igvtools_readme.txt in that directory.
 
     * The launcher scripts expect this folder structure in order to run IGV.
-  
-* Use ```./gradlew test``` to run the test suite.  See 'src/test/README.txt' for more information about running
+
+* Use ```./gradlew test``` to run the test suite. See 'src/test/README.txt' for more information about running
   the tests.
-
-* See this [README](https://raw.githubusercontent.com/igvteam/igv/master/scripts/readme.txt) for tips about using the IGV launcher scripts.
 
-* This dashboard describes [project structure and dependencies](https://sourcespy.com/github/igvteamigv/). 
+* See this [README](https://raw.githubusercontent.com/igvteam/igv/master/scripts/readme.txt) for tips about using the
+  IGV launcher scripts.
 
+* This dashboard describes [project structure and dependencies](https://sourcespy.com/github/igvteamigv/).
 
-Note that Gradle creates a number of other subdirectories in 'build'.  These can be safely ignored.
+Note that Gradle creates a number of other subdirectories in 'build'. These can be safely ignored.
 
 #### Amazon Web Services support
 
-Public data files hosted in Amazon S3 buckets can be loaded into IGV using [https endpoints](https://docs.aws.amazon.com/AmazonS3/latest/dev/UsingBucket.html).  
+Public data files hosted in Amazon S3 buckets can be loaded into IGV
+using [https endpoints](https://docs.aws.amazon.com/AmazonS3/latest/dev/UsingBucket.html).
 
-Authenticated access using s3:// urls is supported by either (1) enabling OAuth access with Cognito using the UMCCR 
-contributed AWS configuration option, or (2) setting AWS credentials and region information as described 
-[here]( https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/credentials.html) and 
+Authenticated access using s3:// urls is supported by either (1) enabling OAuth access with Cognito using the UMCCR
+contributed AWS configuration option, or (2) setting AWS credentials and region information as described
+[here]( https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/credentials.html) and
 [here](https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/java-dg-region-selection.html).
 
-For more details on using Cognito for OAuth access, see the [UMCCR documentation on the backend](https://umccr.org/blog/igv-amazon-backend-setup/) 
+For more details on using Cognito for OAuth access, see
+the [UMCCR documentation on the backend](https://umccr.org/blog/igv-amazon-backend-setup/)
 and [frontend for a provisioning URL step by step guide](https://umccr.org/blog/igv-amazon-frontend-setup/).