diff --git a/src/main/java/org/apache/lucene/search/suggest/analyzing/XAnalyzingSuggester.java b/src/main/java/org/apache/lucene/search/suggest/analyzing/XAnalyzingSuggester.java
index 705f0283d2a..2d9e2985a43 100644
--- a/src/main/java/org/apache/lucene/search/suggest/analyzing/XAnalyzingSuggester.java
+++ b/src/main/java/org/apache/lucene/search/suggest/analyzing/XAnalyzingSuggester.java
@@ -903,8 +903,6 @@ public class XAnalyzingSuggester extends Lookup {
 
       replaceSep(automaton, preserveSep, sepLabel);
 
-      assert SpecialOperations.isFinite(automaton);
-
       // Get all paths from the automaton (there can be
       // more than one path, eg if the analyzer created a
       // graph using SynFilter or WDF):
@@ -1091,4 +1089,4 @@ public class XAnalyzingSuggester extends Lookup {
         }
 
     }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/org/elasticsearch/search/suggest/completion/CompletionPostingsFormatTest.java b/src/test/java/org/elasticsearch/search/suggest/completion/CompletionPostingsFormatTest.java
index d221de5a8b9..ecd3ebdb0d0 100644
--- a/src/test/java/org/elasticsearch/search/suggest/completion/CompletionPostingsFormatTest.java
+++ b/src/test/java/org/elasticsearch/search/suggest/completion/CompletionPostingsFormatTest.java
@@ -126,13 +126,6 @@ public class CompletionPostingsFormatTest extends ElasticsearchTestCase {
         final boolean usePayloads = getRandom().nextBoolean();
         final int options = preserveSeparators ? AnalyzingSuggester.PRESERVE_SEP : 0;
 
-        // NOTE: remove once we fix isFinite to not
-        // recurse; this is just a stopgap to mute the test: 
-        // This test fails on Java8, I think because that
-        // version allocates less stack in the Jenkins envs
-        // where we run tests
-        assumeFalse(Constants.JRE_IS_MINIMUM_JAVA8);
-
         XAnalyzingSuggester reference = new XAnalyzingSuggester(new StandardAnalyzer(TEST_VERSION_CURRENT), null, new StandardAnalyzer(
                 TEST_VERSION_CURRENT), options, 256, -1, preservePositionIncrements, null, false, 1, XAnalyzingSuggester.SEP_LABEL, XAnalyzingSuggester.PAYLOAD_SEP, XAnalyzingSuggester.END_BYTE, XAnalyzingSuggester.HOLE_CHARACTER);
         LineFileDocs docs = new LineFileDocs(getRandom());