File java8-compatibility.patch of Package xmlgraphics-fop

--- fop-2.1/src/java/org/apache/fop/fo/FOText.java	2016-01-07 15:13:29.000000000 +0100
+++ fop-2.1/src/java/org/apache/fop/fo/FOText.java	2018-04-05 12:06:45.984476031 +0200
@@ -20,6 +20,7 @@
 package org.apache.fop.fo;
 
 import java.awt.Color;
+import java.nio.Buffer;
 import java.nio.CharBuffer;
 import java.text.CharacterIterator;
 import java.text.StringCharacterIterator;
@@ -120,7 +121,7 @@
             charBuffer = CharBuffer.allocate(newLength);
         } else {
             // allocate a larger buffer, and transfer contents
-            int requires = charBuffer.position() + length;
+            int requires = ((Buffer)charBuffer).position() + length;
             int capacity = charBuffer.capacity();
             if (requires > capacity) {
                 int newCapacity = capacity * 2;
@@ -134,11 +135,11 @@
             }
         }
         // extend limit to capacity
-        charBuffer.limit(charBuffer.capacity());
+        ((Buffer)charBuffer).limit(charBuffer.capacity());
         // append characters
         charBuffer.put(data, start, length);
         // shrink limit to position
-        charBuffer.limit(charBuffer.position());
+        ((Buffer)charBuffer).limit(((Buffer)charBuffer).position());
     }
 
     /**
@@ -162,7 +163,7 @@
             // not really removing, just make sure the char buffer
             // pointed to is really a different one
             if (charBuffer != null) {
-                ft.charBuffer = CharBuffer.allocate(charBuffer.limit());
+                ft.charBuffer = CharBuffer.allocate(((Buffer)charBuffer).limit());
                 charBuffer.rewind();
                 ft.charBuffer.put(charBuffer);
                 ft.charBuffer.rewind();
@@ -219,7 +220,7 @@
      */
     public boolean willCreateArea() {
         if (whiteSpaceCollapse == Constants.EN_FALSE
-                && charBuffer.limit() > 0) {
+                && ((Buffer)charBuffer).limit() > 0) {
             return true;
         }
 
@@ -278,7 +279,7 @@
         charBuffer.rewind();
         CharBuffer tmp = charBuffer.slice();
         char c;
-        int lim = charBuffer.limit();
+        int lim = ((Buffer)charBuffer).limit();
         int pos = -1;
         while (++pos < lim) {
             c = charBuffer.get();
@@ -522,13 +523,13 @@
 
         /** {@inheritDoc} */
         public boolean hasNext() {
-           return (this.currentPosition < charBuffer.limit());
+           return (this.currentPosition < ((Buffer)charBuffer).limit());
         }
 
         /** {@inheritDoc} */
         public char nextChar() {
 
-            if (this.currentPosition < charBuffer.limit()) {
+            if (this.currentPosition < ((Buffer)charBuffer).limit()) {
                 this.canRemove = true;
                 this.canReplace = true;
                 return charBuffer.get(currentPosition++);
@@ -542,11 +543,11 @@
         public void remove() {
 
             if (this.canRemove) {
-                charBuffer.position(currentPosition);
+                ((Buffer)charBuffer).position(currentPosition);
                 // Slice the buffer at the current position
                 CharBuffer tmp = charBuffer.slice();
                 // Reset position to before current character
-                charBuffer.position(--currentPosition);
+                ((Buffer)charBuffer).position(--currentPosition);
                 if (tmp.hasRemaining()) {
                     // Transfer any remaining characters
                     charBuffer.mark();
@@ -554,7 +555,7 @@
                     charBuffer.reset();
                 }
                 // Decrease limit
-                charBuffer.limit(charBuffer.limit() - 1);
+                ((Buffer)charBuffer).limit(((Buffer)charBuffer).limit() - 1);
                 // Make sure following calls fail, unless nextChar() was called
                 this.canRemove = false;
             } else {
@@ -729,7 +730,7 @@
 
     /** {@inheritDoc} */
     public int length() {
-        return charBuffer.limit();
+        return ((Buffer)charBuffer).limit();
     }
 
     /**