remove fastutil dependency (#576)

Removes the heavy (19MB) dependency on fastutil by directly including only the used classes directly into chartfx.

* shades fastutil classes
* removes all unused methods from the classes
* removes fastutil dependency
* adds stream support

chartfx-dataset/pom.xml

@@ -20,11 +20,6 @@
 	</description>
 
     <dependencies>
-        <dependency>
-            <groupId>it.unimi.dsi</groupId>
-            <artifactId>fastutil</artifactId>
-            <version>8.3.1</version>
-        </dependency>
         <!-- micro-benchmarking framework -->
         <dependency>
             <groupId>org.openjdk.jmh</groupId>

chartfx-dataset/src/main/java/io/fair_acc/dataset/spi/DoubleDataSet.java

@@ -9,7 +9,7 @@
 import io.fair_acc.dataset.DataSet2D;
 import io.fair_acc.dataset.EditableDataSet;
 
-import it.unimi.dsi.fastutil.doubles.DoubleArrayList;
+import io.fair_acc.dataset.spi.fastutil.DoubleArrayList;
 
 /**
  * Implementation of the {@code DataSet} interface which stores x,y values in two separate arrays. It provides methods

chartfx-dataset/src/main/java/io/fair_acc/dataset/spi/DoubleErrorDataSet.java

@@ -10,7 +10,7 @@
 import io.fair_acc.dataset.DataSetError;
 import io.fair_acc.dataset.EditableDataSet;
 
-import it.unimi.dsi.fastutil.doubles.DoubleArrayList;
+import io.fair_acc.dataset.spi.fastutil.DoubleArrayList;
 
 /**
  * Implementation of the {@code DataSetError} interface which stores x,y, +eyn, and -eyn values in separate double

chartfx-dataset/src/main/java/io/fair_acc/dataset/spi/FloatDataSet.java

@@ -10,7 +10,7 @@
 import io.fair_acc.dataset.DataSet2D;
 import io.fair_acc.dataset.EditableDataSet;
 
-import it.unimi.dsi.fastutil.floats.FloatArrayList;
+import io.fair_acc.dataset.spi.fastutil.FloatArrayList;
 
 /**
  * Implementation of the <code>DataSet</code> interface which stores x,y values in two separate arrays. It provides

chartfx-dataset/src/main/java/io/fair_acc/dataset/spi/MultiDimDoubleDataSet.java

@@ -8,7 +8,7 @@
 import io.fair_acc.dataset.DataSet;
 import io.fair_acc.dataset.EditableDataSet;
 
-import it.unimi.dsi.fastutil.doubles.DoubleArrayList;
+import io.fair_acc.dataset.spi.fastutil.DoubleArrayList;
 
 /**
  * Implementation of the {@code DataSet} interface which stores x,y,... values in nDim separate arrays. It provides

chartfx-dataset/src/main/java/io/fair_acc/dataset/spi/fastutil/ArrayUtil.java

@@ -0,0 +1,26 @@
+package io.fair_acc.dataset.spi.fastutil;
+
+/**
+ * Utilities for shading fastutil lists.
+ */
+class ArrayUtil {
+
+    /** Ensures that a range given by its first (inclusive) and last (exclusive) elements fits an array of given length.
+     *
+     * <p>This method may be used whenever an array range check is needed.
+     *
+     * @param arrayLength an array length.
+     * @param from a start index (inclusive).
+     * @param to an end index (inclusive).
+     * @throws IllegalArgumentException if {@code from} is greater than {@code to}.
+     * @throws ArrayIndexOutOfBoundsException if {@code from} or {@code to} are greater than {@code arrayLength} or negative.
+     */
+    public static void ensureFromTo(final int arrayLength, final int from, final int to) {
+        if (from < 0) throw new ArrayIndexOutOfBoundsException("Start index (" + from + ") is negative");
+        if (from > to) throw new IllegalArgumentException("Start index (" + from + ") is greater than end index (" + to + ")");
+        if (to > arrayLength) throw new ArrayIndexOutOfBoundsException("End index (" + to + ") is greater than array length (" + arrayLength + ")");
+    }
+
+    public static final int MAX_ARRAY_SIZE = Integer.MAX_VALUE - 8;
+
+}