2 files changed, 6 insertions, 4 deletions
diff --git a/src/main/java/com/healthmarketscience/jackcess/impl/expr/DefaultFunctions.java b/src/main/java/com/healthmarketscience/jackcess/impl/expr/DefaultFunctions.java
index b691d64..f77e0a3 100644
--- a/src/main/java/com/healthmarketscience/jackcess/impl/expr/DefaultFunctions.java
+++ b/src/main/java/com/healthmarketscience/jackcess/impl/expr/DefaultFunctions.java
@@ -90,13 +90,13 @@ public class DefaultFunctions
       }
     }
 
-    protected IllegalStateException invalidFunctionCall(
+    protected EvalException invalidFunctionCall(
         Throwable t, Value[] params)
     {
       String paramStr = Arrays.toString(params);
       String msg = "Invalid function call {" + _name + "(" +
         paramStr.substring(1, paramStr.length() - 1) + ")}";
-      return new IllegalStateException(msg, t);
+      return new EvalException(msg, t);
     }
 
     @Override
diff --git a/src/main/java/com/healthmarketscience/jackcess/impl/expr/DefaultTextFunctions.java b/src/main/java/com/healthmarketscience/jackcess/impl/expr/DefaultTextFunctions.java
index b419f70..7831d6e 100644
--- a/src/main/java/com/healthmarketscience/jackcess/impl/expr/DefaultTextFunctions.java
+++ b/src/main/java/com/healthmarketscience/jackcess/impl/expr/DefaultTextFunctions.java
@@ -244,8 +244,8 @@ public class DefaultTextFunctions
       String str = param1.getAsString();
       int strLen = str.length();
       // 1 based offsets
-      int start = Math.max(strLen, params[1].getAsLongInt() - 1);
-      int len = Math.max(
+      int start = Math.min(strLen, params[1].getAsLongInt() - 1);
+      int len = Math.min(
           ((params.length > 2) ? params[2].getAsLongInt() : strLen),
           (strLen - start));
       return BuiltinOperators.toValue(str.substring(start, start + len));
@@ -308,6 +308,8 @@ public class DefaultTextFunctions
       }
       int cmp = (ignoreCase ?
                  s1.compareToIgnoreCase(s2) : s1.compareTo(s2));
+      // stupid java doesn't return 1, -1, 0...
+      cmp = ((cmp < 0) ? -1 : ((cmp > 0) ? 1 : 0));
       return BuiltinOperators.toValue(cmp);
     }
   });