[456318] Update JDT preferences to build workspace with Mars.

* Update JDT preferences to have a warning instead of error on
unnecessary type check

Bug: 456318
Change-Id: I213de81824c5e01334b0b28d44cdfcb826fc65b2
Signed-off-by: Florian Barbin <florian.barbin@obeo.fr>

41 files changed, 41 insertions, 41 deletions

diff --git a/plugins/org.eclipse.sirius.common.acceleo.mtl.ide/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.common.acceleo.mtl.ide/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.common.acceleo.mtl.ide/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.common.acceleo.mtl.ide/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.common.acceleo.mtl/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.common.acceleo.mtl/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.common.acceleo.mtl/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.common.acceleo.mtl/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.common.ocl/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.common.ocl/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.common.ocl/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.common.ocl/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.common.ui/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.common.ui/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.common.ui/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.common.ui/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.common.xtext/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.common.xtext/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.common.xtext/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.common.xtext/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.common/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.common/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.common/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.common/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.diagram.layoutdata/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.diagram.layoutdata/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.diagram.layoutdata/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.diagram.layoutdata/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.diagram.sequence.edit/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.diagram.sequence.edit/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.diagram.sequence.edit/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.diagram.sequence.edit/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.diagram.sequence.ui/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.diagram.sequence.ui/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.diagram.sequence.ui/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.diagram.sequence.ui/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.diagram.sequence/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.diagram.sequence/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.diagram.sequence/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.diagram.sequence/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.diagram.ui/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.diagram.ui/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.diagram.ui/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.diagram.ui/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.diagram/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.diagram/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.diagram/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.diagram/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ecore.extender/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ecore.extender/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ecore.extender/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ecore.extender/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.editor.diagram/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.editor.diagram/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.editor.diagram/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.editor.diagram/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.editor.sequence/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.editor.sequence/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.editor.sequence/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.editor.sequence/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.editor.table/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.editor.table/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.editor.table/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.editor.table/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.editor.tree/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.editor.tree/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.editor.tree/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.editor.tree/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.editor/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.editor/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.editor/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.editor/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.eef.adapters/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.eef.adapters/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.eef.adapters/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.eef.adapters/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.base/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.base/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.base/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.base/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.draw2d/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.draw2d/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.draw2d/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.draw2d/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.e3.ui/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.e3.ui/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.e3.ui/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.e3.ui/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.e3/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.e3/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.e3/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.e3/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.emf.edit/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.emf.edit/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.emf.edit/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.emf.edit/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.emf.tx/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.emf.tx/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.emf.tx/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.emf.tx/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.emf.ui/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.emf.ui/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.emf.ui/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.emf.ui/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.emf/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.emf/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.emf/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.emf/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.gef/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.gef/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.gef/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.gef/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.gmf.notation/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.gmf.notation/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.gmf.notation/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.gmf.notation/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.gmf.runtime/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.gmf.runtime/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.gmf.runtime/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.gmf.runtime/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.jface/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.jface/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.jface/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.jface/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ext.swt/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ext.swt/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ext.swt/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ext.swt/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.interpreter/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.interpreter/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.interpreter/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.interpreter/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.sample.ecore.design/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.sample.ecore.design/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.sample.ecore.design/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.sample.ecore.design/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.synchronizer/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.synchronizer/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.synchronizer/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.synchronizer/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.table.ui/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.table.ui/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.table.ui/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.table.ui/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.table/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.table/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.table/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.table/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.tree.ui/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.tree.ui/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.tree.ui/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.tree.ui/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.tree/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.tree/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.tree/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.tree/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius.ui/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius.ui/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius.ui/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius.ui/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled
diff --git a/plugins/org.eclipse.sirius/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.sirius/.settings/org.eclipse.jdt.core.prefs
index a7b5ebe1d2..fc8c7f3ddc 100644
--- a/plugins/org.eclipse.sirius/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.sirius/.settings/org.eclipse.jdt.core.prefs
@@ -50,7 +50,7 @@ org.eclipse.jdt.core.compiler.problem.uncheckedTypeOperation=warning
 org.eclipse.jdt.core.compiler.problem.undocumentedEmptyBlock=ignore
 org.eclipse.jdt.core.compiler.problem.unhandledWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.unnecessaryElse=ignore
-org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=error
+org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck=warning
 org.eclipse.jdt.core.compiler.problem.unqualifiedFieldAccess=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownException=ignore
 org.eclipse.jdt.core.compiler.problem.unusedDeclaredThrownExceptionExemptExceptionAndThrowable=enabled