fixes xtend compilation issue 1373

Applies the workaround suggested by
eclipse/xtext#1373

fixes bug #131

This workaround should be removed when bumping to xtext/xtend 2.15+

Signed-off-by: Didier Vojtisek <didier.vojtisek@inria.fr>

Signed-off-by: Didier Vojtisek <didier.vojtisek@inria.fr>

pom.xml

@@ -204,22 +204,28 @@
 						</execution>
 					</executions>
 					<!-- workaround https://github.com/eclipse/xtext/issues/1231 -->
+					<!-- workaround https://github.com/eclipse/xtext/issues/1373 -->
+					<!-- Remove with upgrade to Xtext 2.15 -->
 					<dependencies>
 						<dependency>
 							<groupId>org.eclipse.jdt</groupId>
 							<artifactId>org.eclipse.jdt.core</artifactId>
-							<version>3.14.0</version>
+							<version>3.13.102</version>
 						</dependency>
-
 						<dependency>
 							<groupId>org.eclipse.jdt</groupId>
 							<artifactId>org.eclipse.jdt.compiler.apt</artifactId>
-							<version>1.3.200</version>
+							<version>1.3.110</version>
 						</dependency>
 						<dependency>
 							<groupId>org.eclipse.jdt</groupId>
 							<artifactId>org.eclipse.jdt.compiler.tool</artifactId>
-							<version>1.2.200</version>
+							<version>1.2.101</version>
+						</dependency>
+						<dependency>
+							<groupId>org.eclipse.emf</groupId>
+							<artifactId>org.eclipse.emf.codegen</artifactId>
+							<version>2.11.0</version>
 						</dependency>
 					</dependencies>
 				</plugin>