diff --git a/src/main/java/de/neemann/digital/builder/Gal22v10/Gal22v10JEDECExporter.java b/src/main/java/de/neemann/digital/builder/Gal22v10/Gal22v10JEDECExporter.java
index aa76a13c2..cee423d59 100644
--- a/src/main/java/de/neemann/digital/builder/Gal22v10/Gal22v10JEDECExporter.java
+++ b/src/main/java/de/neemann/digital/builder/Gal22v10/Gal22v10JEDECExporter.java
@@ -17,7 +17,7 @@ import java.io.IOException;
 import java.io.OutputStream;
 
 /**
- * Class to create a JEDEC file for the Lattice GAL16V8
+ * Class to create a JEDEC file for the Lattice GAL22V10
  */
 public class Gal22v10JEDECExporter implements ExpressionExporter<Gal22v10JEDECExporter> {
     private static final int[] PRODUCTS_BY_OLMC = new int[]{8, 10, 12, 14, 16, 16, 14, 12, 10, 8};
diff --git a/src/main/java/de/neemann/digital/builder/jedec/FuseMap.java b/src/main/java/de/neemann/digital/builder/jedec/FuseMap.java
index 8bd8056dd..c2082b80f 100644
--- a/src/main/java/de/neemann/digital/builder/jedec/FuseMap.java
+++ b/src/main/java/de/neemann/digital/builder/jedec/FuseMap.java
@@ -6,6 +6,8 @@
 package de.neemann.digital.builder.jedec;
 
 /**
+ * Represents the fuses in the fuse map.
+ * Fuse data is represented by bytes containing 8 fuses each
  */
 public class FuseMap {
 
diff --git a/src/main/java/de/neemann/digital/builder/jedec/FuseMapFiller.java b/src/main/java/de/neemann/digital/builder/jedec/FuseMapFiller.java
index e3aaeb7c0..334de1ebb 100644
--- a/src/main/java/de/neemann/digital/builder/jedec/FuseMapFiller.java
+++ b/src/main/java/de/neemann/digital/builder/jedec/FuseMapFiller.java
@@ -26,8 +26,6 @@ public class FuseMapFiller {
 
     /**
      * Creates a new instance
-     * The given vars list needs to contain all variables connected to the matrix in the correct order.
-     * If a variable in the matrix is not used, you have to add a null to the variables list.
      *
      * @param fuseMap            the fuse map to fill
      * @param varsConnectedToMap the number variables available in matrix
diff --git a/src/main/java/de/neemann/digital/builder/jedec/JedecWriter.java b/src/main/java/de/neemann/digital/builder/jedec/JedecWriter.java
index 9da1195d4..66ee55c30 100644
--- a/src/main/java/de/neemann/digital/builder/jedec/JedecWriter.java
+++ b/src/main/java/de/neemann/digital/builder/jedec/JedecWriter.java
@@ -8,6 +8,7 @@ package de.neemann.digital.builder.jedec;
 import java.io.FilterOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
 
 /**
  */
@@ -35,11 +36,11 @@ public class JedecWriter extends FilterOutputStream {
      * Writes the string to the file
      *
      * @param s the string to write
-     * @return this for chanined calls
+     * @return this for chained calls
      * @throws IOException IOException
      */
     public JedecWriter print(String s) throws IOException {
-        write(s.getBytes("ISO-8859-1"));
+        write(s.getBytes(StandardCharsets.ISO_8859_1));
         return this;
     }
 
@@ -48,7 +49,7 @@ public class JedecWriter extends FilterOutputStream {
      * Adds a carriage return and a line feed
      *
      * @param s the string to write
-     * @return this for chanined calls
+     * @return this for chained calls
      * @throws IOException IOException
      */
     public JedecWriter println(String s) throws IOException {
@@ -104,7 +105,7 @@ public class JedecWriter extends FilterOutputStream {
     @Override
     public void close() throws IOException {
         write(ETX);
-        out.write(toHex(checksum & 0xffff, 4).getBytes("ISO-8859-1"));
+        out.write(toHex(checksum & 0xffff, 4).getBytes(StandardCharsets.ISO_8859_1));
         super.close();
     }