Minor post-merge clean up wrt #417

ion/src/main/java/com/fasterxml/jackson/dataformat/ion/IonParser.java

@@ -269,17 +269,23 @@ public String getText() throws IOException
          if (_currToken != null) { // null only before/after document
             switch (_currToken) {
             case FIELD_NAME:
-                return getCurrentName();
+                return currentName();
             case VALUE_STRING:
                 try {
+                    return _reader.stringValue();
+                } catch (UnknownSymbolException e) {
                     // stringValue() will throw an UnknownSymbolException if we're
                     // trying to get the text for a symbol id that cannot be resolved.
                     // stringValue() has an assert statement which could throw an
+                    throw _constructError(e.getMessage(), e);
+                } catch (AssertionError e) {
                     // AssertionError if we're trying to get the text with a symbol
                     // id less than or equals to 0.
-                    return _reader.stringValue();
-                } catch (UnknownSymbolException | AssertionError e) {
-                    throw _constructError(e.getMessage(), e);
+                    String msg = e.getMessage();
+                    if (msg == null) {
+                        msg = "UNKNOWN ROOT CAUSE";
+                    }
+                    throw _constructError("Internal `IonReader` error: "+msg, e);
                 }
             case VALUE_NUMBER_INT:
             case VALUE_NUMBER_FLOAT:

ion/src/test/java/com/fasterxml/jackson/dataformat/ion/fuzz/Fuzz417_64721InvalidIonTest.java

@@ -0,0 +1,33 @@
+package com.fasterxml.jackson.dataformat.ion.fuzz;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.Assert.fail;
+
+import org.hamcrest.Matchers;
+import org.junit.Test;
+
+import com.fasterxml.jackson.core.exc.StreamReadException;
+import com.fasterxml.jackson.dataformat.ion.*;
+
+// [dataformats-binary#417]
+public class Fuzz417_64721InvalidIonTest
+{
+    enum EnumFuzz {
+        A, B, C, D, E;
+    }
+
+    @Test
+    public void testFuzz64721AssertionException() throws Exception {
+       IonFactory f = IonFactory
+                          .builderForBinaryWriters()
+                          .enable(IonParser.Feature.USE_NATIVE_TYPE_ID)
+                          .build();
+       IonObjectMapper mapper = IonObjectMapper.builder(f).build();
+       try {
+           mapper.readValue("$0/", EnumFuzz.class);
+           fail("Should not pass (invalid content)");
+       } catch (StreamReadException e) {
+           assertThat(e.getMessage(), Matchers.containsString("Internal `IonReader` error"));
+       }
+    }
+}

release-notes/CREDITS-2.x

@@ -235,58 +235,53 @@ Martin Giannechini (MartinGian@github)
  (2.13.0)
 
 Tyler Gregg (tgregg@github)
-
-#325: (ion) Ensure `IonReader` instances created within `IonFactory` are
-  always resource-managed
- (2.14.0)
+ #325: (ion) Ensure `IonReader` instances created within `IonFactory` are
+   always resource-managed
+  (2.14.0)
 
 David Turner (DaveCTurner@github)
-
-#312: (cbor, smile) Short NUL-only keys incorrectly detected as duplicates
- (2.14.0)
+ #312: (cbor, smile) Short NUL-only keys incorrectly detected as duplicates
+  (2.14.0)
 
 Matthew Pope (popematt@github)
-
-#311: (ion) `IonObjectMapper` does not throw JacksonException for some
-  invalid Ion
- (2.14.0)
+ #311: (ion) `IonObjectMapper` does not throw JacksonException for some
+   invalid Ion
+  (2.14.0)
 
 Szymon Sasin (szysas@github)
-
-#338: (cbor) Use passed "current value" in `writeStartObject()` overload
- (2.14.0)
+ #338: (cbor) Use passed "current value" in `writeStartObject()` overload
+  (2.14.0)
 
 Dominik Broj (thetric@github)
-
-#341: (ion) Update to Amazon Ion 1.9.5
- (2.14.0)
-#410: Update `com.amazon.ion:ion-java` to 1.10.5 (from 1.9.5)
- (2.16.0)
+ #341: (ion) Update to Amazon Ion 1.9.5
+  (2.14.0)
+ #410: Update `com.amazon.ion:ion-java` to 1.10.5 (from 1.9.5)
+  (2.16.0)
 
 Brian Harrington (brharrington@github)
-
-* Contributed #342: (smile) Possible performance improvement on jdk9+ for Smile decoding
- (2.14.1)
+ * Contributed #342: (smile) Possible performance improvement on jdk9+ for Smile decoding
+  (2.14.1)
 
 Nik Everett (nik9000@github)
-
-* Reported #366: `CBORGenerator.writeRawUTF8String()` seems to ignore offset
- (2.14.3)
+ * Reported #366: `CBORGenerator.writeRawUTF8String()` seems to ignore offset
+  (2.14.3)
 
 Aaron Barany (here-abarany@github)
-
-* Contributed #347: (cbor) Add support for CBOR stringref extension (`CBORGenerator.Feature.STRINGREF`)
- (2.15.0)
-* Contributed #356: (cbor) Add `CBORGenerat.Feature.WRITE_MINIMAL_DOUBLES` for writing `double`s
-  as `float`s if safe to do so
- (2.15.0)
+ * Contributed #347: (cbor) Add support for CBOR stringref extension (`CBORGenerator.Feature.STRINGREF`)
+  (2.15.0)
+ * Contributed #356: (cbor) Add `CBORGenerat.Feature.WRITE_MINIMAL_DOUBLES` for writing `double`s
+   as `float`s if safe to do so
+  (2.15.0)
 
 Kyle Silver (kyle-silver@github)
-
-* Reported *379: (avro) `logback-test.xml` in wrong place (avro/src/main/resources)
- (2.15.2)
+ * Reported *379: (avro) `logback-test.xml` in wrong place (avro/src/main/resources)
+  (2.15.2)
 
 Simon Daudin (@simondaudin)
+ * Reported #384: `Smile` decoding issue with `NonBlockingByteArrayParser`, concurrency
+  (2.15.3)
 
-* Reported #384: `Smile` decoding issue with `NonBlockingByteArrayParser`, concurrency
- (2.15.3)
+Arthur Chan (@arthurscchan)
+ * Contributed #417: (ion) `IonReader` classes contain assert statement which could throw
+   unexpected `AssertionError`
+ (2.17.0)

release-notes/VERSION-2.x

@@ -16,7 +16,9 @@ Active maintainers:
 
 2.17.0 (not yet released)
 
--
+#417: (ion) `IonReader` classes contain assert statement which could throw
+  unexpected `AssertionError`
+ (contributed by Arthur C)
 
 2.16.0 (15-Nov-2023)