src/main/java/com/github/difflib/unifieddiff/UnifiedDiffReader.java

@@ -46,7 +46,7 @@ public final class UnifiedDiffReader {
         new UnifiedDiffLine(true, "^index\\s[\\da-zA-Z]+\\.\\.[\\da-zA-Z]+(\\s(\\d+))?$", this::processIndex),
         new UnifiedDiffLine(true, "^---\\s", this::processFromFile),
         new UnifiedDiffLine(true, "^\\+\\+\\+\\s", this::processToFile),
-        new UnifiedDiffLine(false, UNIFIED_DIFF_CHUNK_REGEXP, this::processChunk),
+        new UnifiedDiffLine(true, UNIFIED_DIFF_CHUNK_REGEXP, this::processChunk),
         new UnifiedDiffLine("^\\s+", this::processNormalLine),
         new UnifiedDiffLine("^-", this::processDelLine),
         new UnifiedDiffLine("^+", this::processAddLine)

src/test/java/com/github/difflib/unifieddiff/UnifiedDiffReaderTest.java

@@ -111,4 +111,19 @@ public class UnifiedDiffReaderTest {
         assertTrue(m.find());
     }
 
+    @Test
+    public void testParseIssue46() throws IOException {
+        UnifiedDiff diff = UnifiedDiffReader.parseUnifiedDiff(
+                UnifiedDiffReaderTest.class.getResourceAsStream("problem_diff_issue46.diff"));
+--- comment
+        System.out.println(diff);
+
+        assertThat(diff.getFiles().size()).isEqualTo(1);
+
+        UnifiedDiffFile file1 = diff.getFiles().get(0);
+        assertThat(file1.getFromFile()).isEqualTo("src/main/jjtree/net/sf/jsqlparser/parser/JSqlParserCC.jjt");
+        assertThat(file1.getPatch().getDeltas().size()).isEqualTo(3);
+
+        assertThat(diff.getTail()).isEqualTo("2.17.1.windows.2\n\n");
+    }
 }

src/test/resources/com/github/difflib/unifieddiff/problem_diff_issue46.diff

@@ -0,0 +1,8 @@
+--- a.vhd	2019-04-18 13:49:39.516149751 +0200
++++ b.vhd	2019-04-18 11:33:08.372563078 +0200
+@@ -2819,3 +2819,3 @@
+--- some comment
+-bla
+-bla
++
++