releng: build against I20190501-1800 for 2019-06 M2
diff --git a/releng/build-scripts/build/run.properties b/releng/build-scripts/build/run.properties
index 2adac1f..2a37d7a 100644
--- a/releng/build-scripts/build/run.properties
+++ b/releng/build-scripts/build/run.properties
@@ -19,12 +19,12 @@
 
 # ------------- insert current versions here ---------------
 # Details of the boot Eclipse SDK:
-run.eclipseScriptDir=plugins/org.eclipse.pde.build_3.10.300.v20190305-0856/scripts
+run.eclipseScriptDir=plugins/org.eclipse.pde.build_3.10.400.v20190320-1020/scripts
 org.eclipse.equinox.launcher_jar=org.eclipse.equinox.launcher_1.5.300.v20190213-1655.jar
 
 # for patching our patch feature to match this version with any suffix:
-jdt.feature.version=3.18.0.v20190411-0625
-jdt.feature.version.next=3.18.0.v20190411-0626
+jdt.feature.version=3.18.0.v20190501-1816
+jdt.feature.version.next=3.18.0.v20190501-1817
 
 # jdt.core fragments for extracting pre-built classes and properties:
 jdt.compiler.apt=org.eclipse.jdt.compiler.apt_1.3.600.v20190402-0634.jar