fix

Author: nenadnoveljic

dd-java-agent/instrumentation/jdbc/src/main/java/datadog/trace/instrumentation/jdbc/JDBCDecorator.java

@@ -267,7 +267,6 @@ public long setContextInfo(Connection connection, DBInfo dbInfo) {
         AgentTracer.get().buildSpan("set context_info").withTag("dd.instrumentation", true).start();
     DECORATE.afterStart(instrumentationSpan);
     DECORATE.onConnection(instrumentationSpan, dbInfo);
-    PreparedStatement instrumentationStatement = null;
     try (AgentScope scope = activateSpan(instrumentationSpan)) {
       final byte samplingDecision =
           (byte) (instrumentationSpan.forceSamplingDecision() > 0 ? 1 : 0);
@@ -284,9 +283,8 @@ public long setContextInfo(Connection connection, DBInfo dbInfo) {
       byteBuffer.putLong(traceId.toLong());
       final byte[] contextInfo = byteBuffer.array();
       String instrumentationSql = "set context_info ?";
-      try (PreparedStatement instrumentStatement =
+      try (PreparedStatement instrumentationStatement =
           connection.prepareStatement(instrumentationSql)) {
-        instrumentationStatement = connection.prepareStatement(instrumentationSql);
         instrumentationStatement.setBytes(1, contextInfo);
         DECORATE.onStatement(instrumentationSpan, instrumentationSql);
         instrumentationStatement.execute();