From 2b659e68ad25f9da664c7ef537c115ad60b0b84c Mon Sep 17 00:00:00 2001
From: Matthias Sohn
Date: Sun, 19 Jun 2016 13:56:51 +0200
Subject: Allow using JDK 7 bootclasspath when compiling egit using Java 8

When compiling jgit using Java 8 pass the property JDK_HOME

mvn clean install -DJDK_HOME=<JAVA_HOME path of JDK7 installation>

to Maven in order to compile against JDK 7 class libraries. Otherwise
egit may hit runtime exceptions when running on Java 7 (e.g. the return
type of ConcurrentHashMap.keySet() in the JDK 8 class library does not
exist in JDK 7).

Bug: 496262
Change-Id: Ib3f681f9844b717e26ad88059e25cb9303668494
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
---
 pom.xml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pom.xml b/pom.xml
index 220a4a1e93..b62acb796f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -77,6 +77,8 @@
     <coretest.vmparams></coretest.vmparams>
     <uitest.vmparams>-Dorg.eclipse.swtbot.search.timeout=30000 -Dorg.eclipse.swtbot.screenshots.dir=target/screenshots -Xmx1024m -XX:MaxPermSize=150m</uitest.vmparams>
     <eclipse-with-smartimport>http://download.eclipse.org/eclipse/updates/4.6milestones/S-4.6M6-201603170200</eclipse-with-smartimport>
+    <!-- set JDK_HOME to JAVA_HOME path of JDK7 installation in order to compile against JDK 7 class library -->
+    <JDK_HOME>${JAVA_HOME}</JDK_HOME>
   </properties>
 
   <profiles>
@@ -366,6 +368,8 @@
               <arg>-properties</arg>
               <arg>${project.basedir}/.settings/org.eclipse.jdt.core.prefs</arg>
               <arg>-nowarn</arg>
+              <arg>-bootclasspath</arg>
+              <arg>${JDK_HOME}${file.separator}jre${file.separator}lib${file.separator}rt.jar${path.separator}${JDK_HOME}${file.separator}jre${file.separator}lib${file.separator}jsse.jar${path.separator}${JDK_HOME}${file.separator}jre${file.separator}lib${file.separator}jce.jar</arg>
             </compilerArgs>
           </configuration>
         </plugin>
-- 
cgit v1.2.3