diff --git a/features/com.minres.scviewer.database.feature/.settings/org.eclipse.core.resources.prefs b/features/com.minres.scviewer.database.feature/.settings/org.eclipse.core.resources.prefs
deleted file mode 100644
index 99f26c0..0000000
--- a/features/com.minres.scviewer.database.feature/.settings/org.eclipse.core.resources.prefs
+++ /dev/null
@@ -1,2 +0,0 @@
-eclipse.preferences.version=1
-encoding/<project>=UTF-8
diff --git a/features/com.minres.scviewer.feature/.settings/org.eclipse.core.resources.prefs b/features/com.minres.scviewer.feature/.settings/org.eclipse.core.resources.prefs
deleted file mode 100644
index 99f26c0..0000000
--- a/features/com.minres.scviewer.feature/.settings/org.eclipse.core.resources.prefs
+++ /dev/null
@@ -1,2 +0,0 @@
-eclipse.preferences.version=1
-encoding/<project>=UTF-8
diff --git a/plugins/com.minres.scviewer.database.sqlite/.classpath b/plugins/com.minres.scviewer.database.sqlite/.classpath
index 79ddf81..1772b79 100644
--- a/plugins/com.minres.scviewer.database.sqlite/.classpath
+++ b/plugins/com.minres.scviewer.database.sqlite/.classpath
@@ -1,8 +1,22 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" output="target/classes" path="src">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry exported="true" kind="lib" path="sqlite-jdbc-3.8.7.jar"/>
+	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/plugins/com.minres.scviewer.database.sqlite/.settings/org.eclipse.core.resources.prefs b/plugins/com.minres.scviewer.database.sqlite/.settings/org.eclipse.core.resources.prefs
deleted file mode 100644
index 99f26c0..0000000
--- a/plugins/com.minres.scviewer.database.sqlite/.settings/org.eclipse.core.resources.prefs
+++ /dev/null
@@ -1,2 +0,0 @@
-eclipse.preferences.version=1
-encoding/<project>=UTF-8
diff --git a/plugins/com.minres.scviewer.database.text/.classpath b/plugins/com.minres.scviewer.database.text/.classpath
index 047d7de..8b1f17e 100644
--- a/plugins/com.minres.scviewer.database.text/.classpath
+++ b/plugins/com.minres.scviewer.database.text/.classpath
@@ -1,8 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="src" path="src/"/>
+	<classpathentry kind="src" output="target/classes" path="src">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry exported="true" kind="lib" path="lib/mapdb-3.0.7.jar" sourcepath="lib/mapdb-3.0.7-sources.jar">
 		<attributes>
 			<attribute name="javadoc_location" value="jar:platform:/resource/com.minres.scviewer.database.text/lib/mapdb-3.0.7-javadoc.jar!/"/>
@@ -11,5 +20,10 @@
 	<classpathentry exported="true" kind="lib" path="lib/kotlin-stdlib-1.2.42.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/lz4-1.3.0.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/elsa-3.0.0-M5.jar"/>
+	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/plugins/com.minres.scviewer.database.text/.settings/org.eclipse.core.resources.prefs b/plugins/com.minres.scviewer.database.text/.settings/org.eclipse.core.resources.prefs
deleted file mode 100644
index 99f26c0..0000000
--- a/plugins/com.minres.scviewer.database.text/.settings/org.eclipse.core.resources.prefs
+++ /dev/null
@@ -1,2 +0,0 @@
-eclipse.preferences.version=1
-encoding/<project>=UTF-8
diff --git a/plugins/com.minres.scviewer.database.ui.swt/.classpath b/plugins/com.minres.scviewer.database.ui.swt/.classpath
index 1db08c6..7931ec2 100644
--- a/plugins/com.minres.scviewer.database.ui.swt/.classpath
+++ b/plugins/com.minres.scviewer.database.ui.swt/.classpath
@@ -1,7 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" output="target/classes" path="src">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/plugins/com.minres.scviewer.database.ui.swt/.settings/org.eclipse.core.resources.prefs b/plugins/com.minres.scviewer.database.ui.swt/.settings/org.eclipse.core.resources.prefs
deleted file mode 100644
index 99f26c0..0000000
--- a/plugins/com.minres.scviewer.database.ui.swt/.settings/org.eclipse.core.resources.prefs
+++ /dev/null
@@ -1,2 +0,0 @@
-eclipse.preferences.version=1
-encoding/<project>=UTF-8
diff --git a/plugins/com.minres.scviewer.database.vcd/.classpath b/plugins/com.minres.scviewer.database.vcd/.classpath
index 1db08c6..7931ec2 100644
--- a/plugins/com.minres.scviewer.database.vcd/.classpath
+++ b/plugins/com.minres.scviewer.database.vcd/.classpath
@@ -1,7 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" output="target/classes" path="src">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/plugins/com.minres.scviewer.database.vcd/.settings/org.eclipse.core.resources.prefs b/plugins/com.minres.scviewer.database.vcd/.settings/org.eclipse.core.resources.prefs
deleted file mode 100644
index 99f26c0..0000000
--- a/plugins/com.minres.scviewer.database.vcd/.settings/org.eclipse.core.resources.prefs
+++ /dev/null
@@ -1,2 +0,0 @@
-eclipse.preferences.version=1
-encoding/<project>=UTF-8
diff --git a/plugins/com.minres.scviewer.database/.classpath b/plugins/com.minres.scviewer.database/.classpath
index 685a699..7931ec2 100644
--- a/plugins/com.minres.scviewer.database/.classpath
+++ b/plugins/com.minres.scviewer.database/.classpath
@@ -1,11 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11">
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
 		<attributes>
-			<attribute name="module" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" output="target/classes" path="src">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/plugins/com.minres.scviewer.database/.settings/org.eclipse.core.resources.prefs b/plugins/com.minres.scviewer.database/.settings/org.eclipse.core.resources.prefs
deleted file mode 100644
index 99f26c0..0000000
--- a/plugins/com.minres.scviewer.database/.settings/org.eclipse.core.resources.prefs
+++ /dev/null
@@ -1,2 +0,0 @@
-eclipse.preferences.version=1
-encoding/<project>=UTF-8
diff --git a/plugins/com.minres.scviewer.e4.application/.classpath b/plugins/com.minres.scviewer.e4.application/.classpath
index 1db08c6..7931ec2 100644
--- a/plugins/com.minres.scviewer.e4.application/.classpath
+++ b/plugins/com.minres.scviewer.e4.application/.classpath
@@ -1,7 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" output="target/classes" path="src">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/plugins/com.minres.scviewer.e4.application/.settings/org.eclipse.core.resources.prefs b/plugins/com.minres.scviewer.e4.application/.settings/org.eclipse.core.resources.prefs
deleted file mode 100644
index 99f26c0..0000000
--- a/plugins/com.minres.scviewer.e4.application/.settings/org.eclipse.core.resources.prefs
+++ /dev/null
@@ -1,2 +0,0 @@
-eclipse.preferences.version=1
-encoding/<project>=UTF-8
diff --git a/plugins/com.minres.scviewer.ui/.classpath b/plugins/com.minres.scviewer.ui/.classpath
index bc57d23..7931ec2 100644
--- a/plugins/com.minres.scviewer.ui/.classpath
+++ b/plugins/com.minres.scviewer.ui/.classpath
@@ -1,7 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="src" path="src/"/>
+	<classpathentry kind="src" output="target/classes" path="src">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/plugins/com.minres.scviewer.ui/.settings/org.eclipse.core.resources.prefs b/plugins/com.minres.scviewer.ui/.settings/org.eclipse.core.resources.prefs
deleted file mode 100644
index 99f26c0..0000000
--- a/plugins/com.minres.scviewer.ui/.settings/org.eclipse.core.resources.prefs
+++ /dev/null
@@ -1,2 +0,0 @@
-eclipse.preferences.version=1
-encoding/<project>=UTF-8
diff --git a/tests/com.minres.scviewer.database.test/.classpath b/tests/com.minres.scviewer.database.test/.classpath
index 336abe9..7931ec2 100644
--- a/tests/com.minres.scviewer.database.test/.classpath
+++ b/tests/com.minres.scviewer.database.test/.classpath
@@ -1,10 +1,20 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
-	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="src" path="src/">
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
 		<attributes>
-			<attribute name="test" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="src" output="target/classes" path="src">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
diff --git a/tests/com.minres.scviewer.database.test/.settings/org.eclipse.core.resources.prefs b/tests/com.minres.scviewer.database.test/.settings/org.eclipse.core.resources.prefs
deleted file mode 100644
index 99f26c0..0000000
--- a/tests/com.minres.scviewer.database.test/.settings/org.eclipse.core.resources.prefs
+++ /dev/null
@@ -1,2 +0,0 @@
-eclipse.preferences.version=1
-encoding/<project>=UTF-8