30.apollo source code is compiled under Mac

I. Introduction to Apollo

Apache Apollo is a proxy server, developed on the basis of ACTIVEMQ, can support stomp, AMQP, MQTT, Openwire, SSL, and WebSockets and many other protocols.

Website link

Using Apollo on its own is primarily used as an MQTT server.

Two. Source code download

Code Download compilation Official Guide

Using the SVN Checkout code:

SVN Co http://svn.apache.org/repos/asf/activemq/activemq-apollo/trunk Apollo

Three. Environmental preparedness

1. JDK1.7

   Download the JDK website
   

2. Scala 2.12.2

   Scala Installation Tutorials
   

   Download the Scala website
   

3. mvn3.5.0

   MAVEN official website
   

Four. Compiling

1. Go to the source code directory

2. Increase the memory configuration because the Apollo compilation consumes memory export maven_opts= "-xmx512m-xx:maxpermsize=128m"

3. Compile mvn-dtest=false Install skip test Step the test process is performed during the Apollo compilation process, such as:------------------------------------------------------T E s T s-------------------------------------------------------Running Org.apache.activemq.apollo.openwire.codec.BooleanStreamTestTests Run:4, failures:0, errors:0, skipped:0, time elapsed:0.825 secrunning Org.apache.activemq.apollo.openwire.test.OpenwireBDBParallelTestParallelJUnitRunner Using the up to 8 threads to execute parallel tests.

Official compilation Guidance Document

Five. Compiling the build directory

Apollo Source code/apollo-distro/target

Six. Problems with compilation:

1.jdk1.8 and Scala are not compatible

An is broken error occurred while compiling the Scala program, as follows:

/library/java/javavirtualmachines/jdk1.8.0_131.jdk/contents/home/jre/lib/rt.jar (java/lang/reflect/ Annotatedelement.class) ' is broken

You can change the JDK to 1.7 to compile.

2.Exception in thread "main" Java.lang.OutOfMemoryError:PermGen space

Execute before compiling

Export maven_opts= "-xmx512m-xx:maxpermsize=128m"

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30.apollo source code is compiled under Mac