diff --git a/samples/fitch/build.xml b/samples/fitch/build.xml
index 301b9616..f6e832f6 100644
--- a/samples/fitch/build.xml
+++ b/samples/fitch/build.xml
@@ -87,9 +87,11 @@
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+          <language id="l:96ee7a94-411d-4cf8-9b94-96cad7e52411:jetbrains.mps.baseLanguage.jdk7" />
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@@ -247,9 +249,11 @@
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@@ -405,9 +409,11 @@
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+          <language id="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" />
           <language id="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" />
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           <language id="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" />
+          <language id="l:96ee7a94-411d-4cf8-9b94-96cad7e52411:jetbrains.mps.baseLanguage.jdk7" />
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@@ -563,9 +569,11 @@
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diff --git a/samples/lambdacalc/build.xml b/samples/lambdacalc/build.xml
index e30ec531..9ed135e1 100644
--- a/samples/lambdacalc/build.xml
+++ b/samples/lambdacalc/build.xml
@@ -91,9 +91,11 @@
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           <language id="l:774bf8a0-62e5-41e1-af63-f4812e60e48b:jetbrains.mps.baseLanguage.checkedDots" />
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diff --git a/samples/mpscore/build.xml b/samples/mpscore/build.xml
index 79104167..5503ab11 100644
--- a/samples/mpscore/build.xml
+++ b/samples/mpscore/build.xml
@@ -84,9 +84,11 @@
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           <language id="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" />
+          <language id="l:96ee7a94-411d-4cf8-9b94-96cad7e52411:jetbrains.mps.baseLanguage.jdk7" />
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@@ -249,9 +251,11 @@
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           <language id="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" />
+          <language id="l:96ee7a94-411d-4cf8-9b94-96cad7e52411:jetbrains.mps.baseLanguage.jdk7" />
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@@ -348,9 +352,11 @@
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@@ -508,6 +514,7 @@
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@@ -751,9 +758,11 @@
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@@ -906,9 +915,11 @@
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@@ -1061,9 +1072,11 @@
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@@ -1215,9 +1228,11 @@
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+          <language id="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" />
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@@ -1371,9 +1386,11 @@
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+          <language id="l:96ee7a94-411d-4cf8-9b94-96cad7e52411:jetbrains.mps.baseLanguage.jdk7" />
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@@ -1799,9 +1816,11 @@
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@@ -2026,9 +2045,11 @@
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@@ -2187,9 +2208,11 @@
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@@ -2344,9 +2367,11 @@
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@@ -2502,9 +2527,11 @@
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@@ -5644,9 +5706,11 @@
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@@ -5800,9 +5864,11 @@
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@@ -5961,9 +6027,11 @@
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@@ -6116,9 +6184,11 @@
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