clearClassMethod bugfix

class-winter-core/src/main/java/winter/com/ideaaedi/classwinter/executor/EncryptExecutor.java

@@ -785,17 +785,46 @@ public class EncryptExecutor {
                 // ignore
                 Logger.warn(EncryptExecutor.class, "Ignore clear-method-body for className [" + className + "], Cannot find '" + e.getMessage() + "'");
             } catch (CannotCompileException e) {
-                Throwable cause = e.getCause();
-                if (cause instanceof NotFoundException) {
+                NotFoundException notFoundException = existNotFoundException(e, 5);
+                if (notFoundException != null) {
                     // ignore
-                    Logger.warn(EncryptExecutor.class, "Ignore clear-method-body for className [" + className + "], Cannot find '" + cause.getMessage() + "'");
+                    Logger.warn(EncryptExecutor.class, "Ignore clear-method-body for className [" + className + "], Cannot find '" + notFoundException.getMessage() + "'");
+                } else {
+                    throw new ClassWinterException(e);
                 }
-                throw new ClassWinterException(e);
             }
         });
         pool.clearImportedPackages();
     }
     
+    /**
+     * 从异常链中寻找NotFoundException异常
+     *
+     * @param e 暴露异常
+     * @param depth 向下寻找深度
+     *
+     * @return NotFoundException异常(null-则表示未找到)
+     */
+    private NotFoundException existNotFoundException(CannotCompileException e, int depth) {
+        if (e == null) {
+            return null;
+        }
+        if (depth <= 0) {
+            return null;
+        }
+        Throwable cause = e.getCause();
+        for (int i = 0; i < depth; i++) {
+            if (cause instanceof NotFoundException) {
+                return (NotFoundException)cause;
+            }
+            if (cause == null) {
+                return null;
+            }
+            cause = cause.getCause();
+        }
+        return null;
+    }
+    
     /**
      * 加密class文件，并将加密后的class文件放在savaDir里
      *