diff --git a/src/net/sourceforge/plantuml/SourceFileReader.java b/src/net/sourceforge/plantuml/SourceFileReader.java
index 5c6852aca..162130a2f 100644
--- a/src/net/sourceforge/plantuml/SourceFileReader.java
+++ b/src/net/sourceforge/plantuml/SourceFileReader.java
@@ -38,12 +38,10 @@ package net.sourceforge.plantuml;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.io.Reader;
 import java.util.Collections;
 import java.util.List;
 
 import net.sourceforge.plantuml.preproc.Defines;
-import net.sourceforge.plantuml.preproc.FileWithSuffix;
 import net.sourceforge.plantuml.security.SFile;
 
 public class SourceFileReader extends SourceFileReaderAbstract implements ISourceFileReader {
@@ -70,11 +68,7 @@ public class SourceFileReader extends SourceFileReaderAbstract implements ISourc
 
 	public SourceFileReader(Defines defines, final File file, File outputDirectory, List<String> config, String charset,
 			FileFormatOption fileFormatOption) throws IOException {
-		this.file = file;
-		this.fileFormatOption = fileFormatOption;
-		if (file.exists() == false) {
-			throw new IllegalArgumentException();
-		}
+		super(file, fileFormatOption, defines, config, charset);
 		FileSystem.getInstance().setCurrentDir(SFile.fromFile(file.getAbsoluteFile().getParentFile()));
 		if (outputDirectory == null) {
 			outputDirectory = file.getAbsoluteFile().getParentFile();
@@ -86,9 +80,6 @@ public class SourceFileReader extends SourceFileReaderAbstract implements ISourc
 		}
 		this.outputDirectory = outputDirectory;
 
-		final Reader reader = getReader(charset);
-		builder = new BlockUmlBuilder(config, charset, defines, reader,
-				SFile.fromFile(file.getAbsoluteFile().getParentFile()), FileWithSuffix.getFileName(file));
 	}
 
 	private File getDirIfDirectory(String newName) throws FileNotFoundException {
diff --git a/src/net/sourceforge/plantuml/SourceFileReaderAbstract.java b/src/net/sourceforge/plantuml/SourceFileReaderAbstract.java
index 40b1f6726..7e33495b4 100644
--- a/src/net/sourceforge/plantuml/SourceFileReaderAbstract.java
+++ b/src/net/sourceforge/plantuml/SourceFileReaderAbstract.java
@@ -53,6 +53,7 @@ import java.util.Set;
 import net.sourceforge.plantuml.api.ImageDataSimple;
 import net.sourceforge.plantuml.core.Diagram;
 import net.sourceforge.plantuml.error.PSystemError;
+import net.sourceforge.plantuml.preproc.Defines;
 import net.sourceforge.plantuml.preproc.FileWithSuffix;
 import net.sourceforge.plantuml.security.SFile;
 import net.sourceforge.plantuml.security.SecurityUtils;
@@ -68,6 +69,19 @@ public abstract class SourceFileReaderAbstract implements ISourceFileReader {
 	private boolean checkMetadata;
 	private boolean noerror;
 
+	public SourceFileReaderAbstract(File file, FileFormatOption fileFormatOption, Defines defines, List<String> config, String charset)
+			throws IOException {
+		
+		if (!file.exists()) {
+			throw new IllegalArgumentException();
+		}
+
+		this.file = file;
+		this.fileFormatOption = fileFormatOption;
+		this.builder = new BlockUmlBuilder(config, charset, defines, getReader(charset),
+				SFile.fromFile(file.getAbsoluteFile().getParentFile()), FileWithSuffix.getFileName(file));
+	}
+
 	public void setCheckMetadata(boolean checkMetadata) {
 		this.checkMetadata = checkMetadata;
 	}
diff --git a/src/net/sourceforge/plantuml/SourceFileReaderCopyCat.java b/src/net/sourceforge/plantuml/SourceFileReaderCopyCat.java
index 180eba81c..215ecc512 100644
--- a/src/net/sourceforge/plantuml/SourceFileReaderCopyCat.java
+++ b/src/net/sourceforge/plantuml/SourceFileReaderCopyCat.java
@@ -40,18 +40,12 @@ import java.io.IOException;
 import java.util.List;
 
 import net.sourceforge.plantuml.preproc.Defines;
-import net.sourceforge.plantuml.preproc.FileWithSuffix;
-import net.sourceforge.plantuml.security.SFile;
 
 public class SourceFileReaderCopyCat extends SourceFileReaderAbstract implements ISourceFileReader {
 
 	public SourceFileReaderCopyCat(Defines defines, final File file, File outputDirectory, List<String> config,
 			String charset, FileFormatOption fileFormatOption) throws IOException {
-		this.file = file;
-		this.fileFormatOption = fileFormatOption;
-		if (file.exists() == false) {
-			throw new IllegalArgumentException();
-		}
+		super(file, fileFormatOption, defines, config, charset);
 		final String path = file.getParentFile().getPath();
 		// System.err.println("SourceFileReaderCopyCat::path=" + path);
 		// System.err.println("SourceFileReaderCopyCat::outputDirectory=" +
@@ -63,8 +57,6 @@ public class SourceFileReaderCopyCat extends SourceFileReaderAbstract implements
 		// System.err.println("SourceFileReaderCopyCat=" +
 		// this.outputDirectory.getPath() + " "
 		// + this.outputDirectory.getAbsolutePath());
-		builder = new BlockUmlBuilder(config, charset, defines, getReader(charset),
-				SFile.fromFile(file.getAbsoluteFile().getParentFile()), FileWithSuffix.getFileName(file));
 	}
 
 	@Override
diff --git a/src/net/sourceforge/plantuml/SourceFileReaderHardFile.java b/src/net/sourceforge/plantuml/SourceFileReaderHardFile.java
index 053d6e76c..a5e9fda6b 100644
--- a/src/net/sourceforge/plantuml/SourceFileReaderHardFile.java
+++ b/src/net/sourceforge/plantuml/SourceFileReaderHardFile.java
@@ -5,12 +5,12 @@
  * (C) Copyright 2009-2020, Arnaud Roques
  *
  * Project Info:  http://plantuml.com
- * 
+ *
  * If you like this project or if you find it useful, you can support us at:
- * 
+ *
  * http://plantuml.com/patreon (only 1$ per month!)
  * http://plantuml.com/paypal
- * 
+ *
  * This file is part of PlantUML.
  *
  * PlantUML is free software; you can redistribute it and/or modify it
@@ -40,24 +40,15 @@ import java.io.IOException;
 import java.util.List;
 
 import net.sourceforge.plantuml.preproc.Defines;
-import net.sourceforge.plantuml.preproc.FileWithSuffix;
 import net.sourceforge.plantuml.security.SFile;
 
 public class SourceFileReaderHardFile extends SourceFileReaderAbstract implements ISourceFileReader {
 
 	public SourceFileReaderHardFile(Defines defines, final File file, File outputFile, List<String> config,
 			String charset, FileFormatOption fileFormatOption) throws IOException {
-		this.file = file;
-		this.fileFormatOption = fileFormatOption;
+		super(file, fileFormatOption, defines, config, charset);
 		this.outputFile = outputFile;
-		if (file.exists() == false) {
-			throw new IllegalArgumentException();
-		}
 		FileSystem.getInstance().setCurrentDir(SFile.fromFile(file.getAbsoluteFile().getParentFile()));
-
-		final SFile parentFile = SFile.fromFile(file.getAbsoluteFile().getParentFile());
-		builder = new BlockUmlBuilder(config, charset, defines, getReader(charset), parentFile,
-				FileWithSuffix.getFileName(file));
 	}
 
 	@Override