diff --git a/plugins/com.abstratt.mdd.core.tests.harness/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.core.tests.harness/META-INF/MANIFEST.MF
index f7f68574..801cdda2 100755
--- a/plugins/com.abstratt.mdd.core.tests.harness/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.core.tests.harness/META-INF/MANIFEST.MF
@@ -11,5 +11,5 @@ Import-Package:
  org.apache.commons.io,
  org.apache.commons.lang,
  org.apache.commons.collections
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Export-Package: com.abstratt.mdd.core.tests.harness
diff --git a/plugins/com.abstratt.mdd.core.tests/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.core.tests/META-INF/MANIFEST.MF
index 57169516..99b0a004 100755
--- a/plugins/com.abstratt.mdd.core.tests/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.core.tests/META-INF/MANIFEST.MF
@@ -16,6 +16,6 @@ Require-Bundle: com.abstratt.mdd.core,
  org.apache.commons.io,
  org.apache.commons.lang,
  org.apache.commons.collections
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Export-Package: com.abstratt.mdd.core.tests
  
diff --git a/plugins/com.abstratt.mdd.core/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.core/META-INF/MANIFEST.MF
index 9dfa7833..a7d0b7dd 100755
--- a/plugins/com.abstratt.mdd.core/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.core/META-INF/MANIFEST.MF
@@ -24,5 +24,5 @@ Export-Package: com.abstratt.mdd.core,
  com.abstratt.mdd.core.isv,
  com.abstratt.mdd.core.util
 Bundle-Vendor: Abstratt Technologies
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 
diff --git a/plugins/com.abstratt.mdd.frontend.ant/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.frontend.ant/META-INF/MANIFEST.MF
index df52f9eb..49f56be6 100755
--- a/plugins/com.abstratt.mdd.frontend.ant/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.frontend.ant/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@ Bundle-Name: Ant Tasks
 Bundle-SymbolicName: com.abstratt.mdd.frontend.ant;singleton:=true
 Bundle-Version: 2.3.201812.qualifier
 Bundle-Vendor: TextUML Toolkit contributors
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Require-Bundle: org.eclipse.ant.core;bundle-version="3.2.0",
  org.apache.ant;bundle-version="1.7.0",
  com.abstratt.mdd.core;bundle-version="1.4.0",
diff --git a/plugins/com.abstratt.mdd.frontend.cli/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.frontend.cli/META-INF/MANIFEST.MF
index f3ee6418..9c954757 100755
--- a/plugins/com.abstratt.mdd.frontend.cli/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.frontend.cli/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@ Bundle-Name: CLI Plug-in
 Bundle-SymbolicName: com.abstratt.mdd.frontend.cli;singleton:=true
 Bundle-Version: 2.13.0.qualifier
 Bundle-Vendor: abstratt technologies
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Require-Bundle: com.abstratt.mdd.frontend.core,
  org.eclipse.equinox.app,
  org.eclipse.equinox.registry,
diff --git a/plugins/com.abstratt.mdd.frontend.textuml.core/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.frontend.textuml.core/META-INF/MANIFEST.MF
index 619ba035..56de4951 100755
--- a/plugins/com.abstratt.mdd.frontend.textuml.core/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.frontend.textuml.core/META-INF/MANIFEST.MF
@@ -12,5 +12,5 @@ Require-Bundle: org.eclipse.core.contenttype,
 Export-Package: com.abstratt.mdd.frontend.textuml.core,
  com.abstratt.mdd.internal.frontend.textuml;x-friends:="com.abstratt.mdd.core.tests,com.abstratt.mdd.frontend.textuml.ui,com.abstratt.mdd.frontend.tests.textuml"
 Import-Package: org.apache.commons.lang
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Abstratt Technologies
diff --git a/plugins/com.abstratt.mdd.frontend.textuml.grammar/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.frontend.textuml.grammar/META-INF/MANIFEST.MF
index 9ccb8a96..e95dae34 100755
--- a/plugins/com.abstratt.mdd.frontend.textuml.grammar/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.frontend.textuml.grammar/META-INF/MANIFEST.MF
@@ -8,5 +8,5 @@ Export-Package:
  com.abstratt.mdd.frontend.textuml.grammar.lexer,
  com.abstratt.mdd.frontend.textuml.grammar.node,
  com.abstratt.mdd.frontend.textuml.grammar.parser
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Abstratt Technologies
diff --git a/plugins/com.abstratt.mdd.frontend.textuml.renderer/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.frontend.textuml.renderer/META-INF/MANIFEST.MF
index 33f31ae7..0ae8ad41 100755
--- a/plugins/com.abstratt.mdd.frontend.textuml.renderer/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.frontend.textuml.renderer/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@ Bundle-Name: TextUML Renderer
 Bundle-SymbolicName: com.abstratt.mdd.frontend.textuml.renderer
 Bundle-Version: 2.13.0.qualifier
 Bundle-Vendor: Abstratt Technologies
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Require-Bundle: org.eclipse.uml2.uml,
  com.abstratt.pluginutils,
  com.abstratt.mdd.modelrenderer,
diff --git a/plugins/com.abstratt.mdd.frontend.textuml.ui/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.frontend.textuml.ui/META-INF/MANIFEST.MF
index 8c754657..72961e78 100755
--- a/plugins/com.abstratt.mdd.frontend.textuml.ui/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.frontend.textuml.ui/META-INF/MANIFEST.MF
@@ -21,4 +21,4 @@ Require-Bundle: com.abstratt.mdd.frontend.textuml.core,
  org.eclipse.ui
 Bundle-Activator: com.abstratt.mdd.internal.ui.TextUMLUIPlugin
 Bundle-ActivationPolicy: lazy
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
diff --git a/plugins/com.abstratt.mdd.frontend.textuml.ui/src/com/abstratt/mdd/internal/ui/editors/UIModelObjectViewerComparator.java b/plugins/com.abstratt.mdd.frontend.textuml.ui/src/com/abstratt/mdd/internal/ui/editors/UIModelObjectViewerComparator.java
index dc0d04f6..305d13f0 100755
--- a/plugins/com.abstratt.mdd.frontend.textuml.ui/src/com/abstratt/mdd/internal/ui/editors/UIModelObjectViewerComparator.java
+++ b/plugins/com.abstratt.mdd.frontend.textuml.ui/src/com/abstratt/mdd/internal/ui/editors/UIModelObjectViewerComparator.java
@@ -26,7 +26,8 @@ public UIModelObjectViewerComparator() {
     public int compare(Viewer viewer, Object e1, Object e2) {
         TreeNode node1 = (TreeNode) e1;
         TreeNode node2 = (TreeNode) e2;
-        return getComparator().compare(node1.getValue(), node2.getValue());
+        // TODO-RC this is dead code, but unsure this cast is correct 
+        return getComparator().compare((String) node1.getValue(), (String) node2.getValue());
     }
 
 }
\ No newline at end of file
diff --git a/plugins/com.abstratt.mdd.frontend.ui/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.frontend.ui/META-INF/MANIFEST.MF
index 205f6dcd..2534ac1d 100755
--- a/plugins/com.abstratt.mdd.frontend.ui/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.frontend.ui/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@ Bundle-Name: MDD Front-end UI Plug-in
 Bundle-SymbolicName: com.abstratt.mdd.frontend.ui;singleton:=true
 Bundle-Version: 2.13.0.qualifier
 Bundle-Vendor: Abstratt Technologies
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Require-Bundle: com.abstratt.mdd.frontend.core,
  com.abstratt.mdd.ui,
  org.eclipse.core.resources,
diff --git a/plugins/com.abstratt.mdd.frontend.visualizer.eclipsegraphviz/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.frontend.visualizer.eclipsegraphviz/META-INF/MANIFEST.MF
index 01e29562..d3488dd9 100755
--- a/plugins/com.abstratt.mdd.frontend.visualizer.eclipsegraphviz/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.frontend.visualizer.eclipsegraphviz/META-INF/MANIFEST.MF
@@ -5,7 +5,7 @@ Bundle-Name: Editor Extension for Graphviz-based UML Model Visualization
 Bundle-SymbolicName: com.abstratt.mdd.frontend.visualizer.eclipsegraphviz;singleton:=true
 Bundle-Version: 2.13.0.qualifier
 Bundle-Vendor: Abstratt Technologies
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Require-Bundle: 
  com.abstratt.imageviewer,
  com.abstratt.mdd.modelviewer.uml2dot
diff --git a/plugins/com.abstratt.mdd.importer.jdbc/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.importer.jdbc/META-INF/MANIFEST.MF
index 034815f3..34a79aed 100755
--- a/plugins/com.abstratt.mdd.importer.jdbc/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.importer.jdbc/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@ Bundle-Name: Model Renderer
 Bundle-SymbolicName: com.abstratt.mdd.importer.jdbc
 Bundle-Version: 2.13.0.qualifier
 Bundle-Vendor: Abstratt Technologies and others
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Require-Bundle: org.eclipse.emf.ecore,
  com.abstratt.pluginutils,
  com.abstratt.wrapped.schemacrawler;bundle-version="3.3.0",
diff --git a/plugins/com.abstratt.mdd.modelrenderer.dot/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.modelrenderer.dot/META-INF/MANIFEST.MF
index 242cf0f0..00120b74 100755
--- a/plugins/com.abstratt.mdd.modelrenderer.dot/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.modelrenderer.dot/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@ Bundle-Name: DOT-based model rendering
 Bundle-SymbolicName: com.abstratt.mdd.modelrenderer.dot
 Bundle-Version: 2.13.0.qualifier
 Bundle-Vendor: ABSTRATT
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Import-Package: com.abstratt.pluginutils,
  org.apache.commons.io,
  org.apache.commons.lang3
diff --git a/plugins/com.abstratt.mdd.modelrenderer.uml2dot/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.modelrenderer.uml2dot/META-INF/MANIFEST.MF
index 05cb8553..155c439f 100755
--- a/plugins/com.abstratt.mdd.modelrenderer.uml2dot/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.modelrenderer.uml2dot/META-INF/MANIFEST.MF
@@ -13,4 +13,4 @@ Require-Bundle: org.eclipse.uml2.uml,
  com.abstratt.mdd.frontend.textuml.renderer,
  com.abstratt.mdd.core
 Export-Package: com.abstratt.mdd.modelrenderer.uml2dot
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
diff --git a/plugins/com.abstratt.mdd.modelrenderer/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.modelrenderer/META-INF/MANIFEST.MF
index eaaf1332..df25c3d8 100755
--- a/plugins/com.abstratt.mdd.modelrenderer/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.modelrenderer/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@ Bundle-Name: Model Renderer
 Bundle-SymbolicName: com.abstratt.mdd.modelrenderer
 Bundle-Version: 2.13.0.qualifier
 Bundle-Vendor: Abstratt Technologies and others
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Require-Bundle: org.eclipse.emf.ecore,
  com.abstratt.pluginutils
 Export-Package: com.abstratt.mdd.modelrenderer
diff --git a/plugins/com.abstratt.mdd.modelviewer.uml2dot/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.modelviewer.uml2dot/META-INF/MANIFEST.MF
index 9f8ae387..bb73fc4c 100755
--- a/plugins/com.abstratt.mdd.modelviewer.uml2dot/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.modelviewer.uml2dot/META-INF/MANIFEST.MF
@@ -18,5 +18,5 @@ Require-Bundle: org.eclipse.uml2.uml,
  org.eclipse.ui,
  org.eclipse.core.runtime
 Export-Package: com.abstratt.mdd.modelviewer.uml2dot
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy
diff --git a/plugins/com.abstratt.mdd.modelviewer/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.modelviewer/META-INF/MANIFEST.MF
index d7b6277c..151920a4 100755
--- a/plugins/com.abstratt.mdd.modelviewer/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.modelviewer/META-INF/MANIFEST.MF
@@ -14,4 +14,4 @@ Require-Bundle: com.abstratt.imageviewer,
  org.eclipse.equinox.common,
  com.abstratt.mdd.modelrenderer;visibility:=reexport
 Export-Package: com.abstratt.mdd.modelviewer
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
diff --git a/plugins/com.abstratt.mdd.target.base/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.target.base/META-INF/MANIFEST.MF
index d60b2da9..ba31a44a 100644
--- a/plugins/com.abstratt.mdd.target.base/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.target.base/META-INF/MANIFEST.MF
@@ -10,5 +10,5 @@ Require-Bundle:
  com.abstratt.mdd.core,
  org.apache.commons.lang3,
  org.apache.commons.io
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Export-Package: com.abstratt.mdd.target.base
diff --git a/plugins/com.abstratt.mdd.ui/META-INF/MANIFEST.MF b/plugins/com.abstratt.mdd.ui/META-INF/MANIFEST.MF
index e3460790..3f2fc665 100755
--- a/plugins/com.abstratt.mdd.ui/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.mdd.ui/META-INF/MANIFEST.MF
@@ -13,5 +13,5 @@ Require-Bundle: org.eclipse.ui,
  org.eclipse.uml2.uml.edit
 Bundle-ActivationPolicy: lazy
 Export-Package: com.abstratt.mdd.ui
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Abstratt Technologies
diff --git a/plugins/com.abstratt.resman.tests/META-INF/MANIFEST.MF b/plugins/com.abstratt.resman.tests/META-INF/MANIFEST.MF
index 8de4c4ca..a4ed1d8d 100755
--- a/plugins/com.abstratt.resman.tests/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.resman.tests/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@ Bundle-ManifestVersion: 2
 Bundle-Name: Resource Management Tests
 Bundle-SymbolicName: com.abstratt.resman.tests
 Bundle-Version: 2.13.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Import-Package: 
  junit.framework
 Require-Bundle: com.abstratt.mdd.core.tests.harness,
diff --git a/plugins/com.abstratt.resman/META-INF/MANIFEST.MF b/plugins/com.abstratt.resman/META-INF/MANIFEST.MF
index dfbd4b59..d7f5d476 100755
--- a/plugins/com.abstratt.resman/META-INF/MANIFEST.MF
+++ b/plugins/com.abstratt.resman/META-INF/MANIFEST.MF
@@ -8,4 +8,4 @@ Export-Package: com.abstratt.resman,
  com.abstratt.resman.impl;x-friends:="com.abstratt.resman.tests"
 Require-Bundle: org.eclipse.core.runtime;bundle-version="3.10.0",
  com.abstratt.pluginutils
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
diff --git a/products/com.abstratt.mdd.frontend.cli.product.test/META-INF/MANIFEST.MF b/products/com.abstratt.mdd.frontend.cli.product.test/META-INF/MANIFEST.MF
index dc2602cf..64bd3700 100755
--- a/products/com.abstratt.mdd.frontend.cli.product.test/META-INF/MANIFEST.MF
+++ b/products/com.abstratt.mdd.frontend.cli.product.test/META-INF/MANIFEST.MF
@@ -4,5 +4,5 @@ Bundle-Name: MDD Front-end Product with tests
 Bundle-SymbolicName: com.abstratt.mdd.frontend.cli.product.test;singleton:=true
 Bundle-Version: 2.3.201812.qualifier
 Bundle-Vendor: ABSTRATT
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy
diff --git a/products/com.abstratt.mdd.frontend.cli.product/META-INF/MANIFEST.MF b/products/com.abstratt.mdd.frontend.cli.product/META-INF/MANIFEST.MF
index cbaf9f8d..d256e2f4 100755
--- a/products/com.abstratt.mdd.frontend.cli.product/META-INF/MANIFEST.MF
+++ b/products/com.abstratt.mdd.frontend.cli.product/META-INF/MANIFEST.MF
@@ -4,5 +4,5 @@ Bundle-Name: MDD Front-end Product
 Bundle-SymbolicName: com.abstratt.mdd.frontend.cli.product;singleton:=true
 Bundle-Version: 2.3.201812.qualifier
 Bundle-Vendor: ABSTRATT
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy