Add CompatibilityType.BACKWARD_COMPATIBLE_BINARY: Allowing changes in throw-clause and field-value

1 files changed, 19 insertions, 0 deletions

diff --git a/api/src/main/java/org/osjava/jardiff/Tools.java b/api/src/main/java/org/osjava/jardiff/Tools.java
index 7fb00ff..da03cd6 100644
--- a/api/src/main/java/org/osjava/jardiff/Tools.java
+++ b/api/src/main/java/org/osjava/jardiff/Tools.java
@@ -38,6 +38,17 @@ public final class Tools
     }
 
     /**
+     * Returns {@code true} if description has changed, i.e. the
+     * {@link MethodInfo#getDesc()} describing the return value.
+     * @param oldDesc
+     * @param newDesc
+     */
+    public static boolean isDescChange(final String oldDesc, final String newDesc) {
+        return null == oldDesc && null != newDesc ||
+               null != oldDesc && !oldDesc.equals(newDesc);
+    }
+
+    /**
      * Get the java class name given an internal class name.
      * This method currently replaces all instances of $ and / with . this
      * may not be according to the java language spec, and will almost
@@ -300,6 +311,14 @@ public final class Tools
         }
     }
 
+    public static boolean isFieldTypeChange(final Object oldValue, final Object newValue) {
+        if (oldValue == null || newValue == null) {
+            return oldValue != newValue;
+        } else {
+            return !oldValue.getClass().equals(newValue.getClass());
+        }
+    }
+
     /**
      * Returns whether a field's oldValue differs with newValue.
      * <p>