Add debug logging for #894

Author: mrotteveel

src/main/org/firebirdsql/jdbc/FBPreparedStatement.java

@@ -32,6 +32,7 @@
 import org.firebirdsql.jdbc.field.FBFlushableField;
 import org.firebirdsql.jdbc.field.FBFlushableField.CachedObject;
 import org.firebirdsql.jdbc.field.FieldDataProvider;
+import org.firebirdsql.logging.LoggerFactory;
 
 import java.io.InputStream;
 import java.io.Reader;
@@ -146,7 +147,14 @@ protected FBPreparedStatement(GDSHelper c, String sql, int rsType,
             try {
                 prepareFixedStatement(sql);
             } catch (Exception e) {
-                notifyStatementCompleted(false);
+                try {
+                    notifyStatementCompleted(false);
+                } catch (SQLException e2) {
+                    LoggerFactory.getLogger(getClass())
+                            .debug("Failed statement completion triggered by exception during statement prepare", e);
+                    e2.setNextException(e instanceof SQLException ? (SQLException) e : new SQLException(e));
+                    throw e2;
+                }
                 throw e;
             }
         }