Perform clean code of build/org.eclipse.pde.build

Author: eclipse-pde-bot

build/org.eclipse.pde.build/src/org/eclipse/pde/internal/build/AbstractScriptGenerator.java

@@ -152,7 +152,7 @@ public static String getImmutableAntProperty(String key, String defaultValue) {
 			return defaultValue;
 		}
 		Object obj = immutableAntProperties.get(key);
-		return (obj instanceof String) ? (String) obj : null;
+		return (obj instanceof String s) ? s : null;
 	}
 
 	public static void setConfigInfo(String spec) throws CoreException {

build/org.eclipse.pde.build/src/org/eclipse/pde/internal/build/builder/SourceGenerator.java

@@ -317,7 +317,7 @@ private BuildTimeFeature createSourceFeature(Feature featureExample) throws Core
 
 		result.setEnvironment(featureExample.getOS(), featureExample.getWS(), featureExample.getArch(), null);
 
-		int contextLength = featureExample instanceof BuildTimeFeature ? ((BuildTimeFeature) featureExample).getContextQualifierLength() : -1;
+		int contextLength = featureExample instanceof BuildTimeFeature b ? b.getContextQualifierLength() : -1;
 		result.setContextQualifierLength(contextLength);
 		return result;
 	}