Synchronize on SymbolTable info

scalacenter · Apr 9, 2018 · 8a3f9a0 · 8a3f9a0
1 parent c96b364
commit 8a3f9a0
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/scalafix-core/shared/src/main/scala/scalafix/internal/util/LazySymbolTable.scala b/scalafix-core/shared/src/main/scala/scalafix/internal/util/LazySymbolTable.scala
@@ -24,10 +24,11 @@ class LazySymbolTable(mclasspath: Classpath) extends SymbolTable {
   // Map from symbols to the paths to their corresponding semanticdb file where they are stored.
   private val notYetLoadedSymbols = TrieMap.empty[String, SemanticdbEntry]
   private val loadedSymbols = TrieMap.empty[String, s.SymbolInformation]
+  val lock = new Object
 
   mclasspath.shallow.foreach(loadSemanticdbIndex)
 
-  override def info(symbol: String): Option[s.SymbolInformation] = {
+  override def info(symbol: String): Option[s.SymbolInformation] = lock.synchronized {
     var result = loadedSymbols.get(symbol)
     if (result.isEmpty) {
       loadSymbolFromClasspath(symbol)