Fixes NullPointerException when reading malformed symbol table import (#395)

popematt · popematt · commit 96e8b86b2169 · 2021-11-22T14:53:34.000-08:00
diff --git a/ion-tests b/ion-tests
@@ -1 +1 @@
-Subproject commit c125f571d2b459e0e610eac5ca11900bd3b6d493
+Subproject commit b5a8cde86303925bdc12cd2077fbbed88ae5c1ff
diff --git a/src/com/amazon/ion/impl/LocalSymbolTable.java b/src/com/amazon/ion/impl/LocalSymbolTable.java
@@ -678,6 +678,8 @@ private static SymbolTable readOneImport(IonReader ionRep,
             if (ionRep.isNullValue()) continue;
 
             SymbolToken symTok = ionRep.getFieldNameSymbol();
+            if (symTok == null) continue;
+
             int field_id = symTok.getSid();
             if (field_id == UNKNOWN_SYMBOL_ID)
             {

Original file line number	Diff line number	Diff line change
`@@ -678,6 +678,8 @@ private static SymbolTable readOneImport(IonReader ionRep,`
`678`	`678`	`if (ionRep.isNullValue()) continue;`
`679`	`679`
`680`	`680`	`SymbolToken symTok = ionRep.getFieldNameSymbol();`
	`681`	`+ if (symTok == null) continue;`
	`682`	`+`
`681`	`683`	`int field_id = symTok.getSid();`
`682`	`684`	`if (field_id == UNKNOWN_SYMBOL_ID)`
`683`	`685`	`{`