Actually cleaning, and creating dist/ dir when needed.

tmt

@@ -655,8 +655,6 @@ class EclipseProject(TmtProject):
 			os.mkdir(self.bin)
 		if not isdir(self.binResource):
 			os.mkdir(self.binResource)
-		if not isdir(self.distDir):
-			os.mkdir(self.distDir)
 
 	def distJarFile(self, includeVersion=True):
 		# This is a function rather than a static attribute because
@@ -805,7 +803,7 @@ class EclipseProject(TmtProject):
 
             # We explicitly clean here, because stuff may have ended up in our
             # resources folders that we don't want to include in the generated jar file.
-			self.clean()
+			tmt._make(projectName=self.name, command='clean')
 
 			# We can't run a dist until after we create the tag. This way
 			# the version number of the resulting file will be correct.
@@ -822,6 +820,9 @@ class EclipseProject(TmtProject):
 			assert 0 == os.system(pushTagsCommand)
 
 	def dist(self):
+		if not isdir(self.distDir):
+			os.mkdir(self.distDir)
+
 		tmt._make(projectName=self.name, command='compile')
 		jar = zipfile.ZipFile(self.distJarFile(), "w", compression=zipfile.ZIP_DEFLATED)