diff --git a/app/src/main/java/com/hippo/ehviewer/client/exception/EhException.java b/app/src/main/java/com/hippo/ehviewer/client/exception/EhException.kt
similarity index 100%
rename from app/src/main/java/com/hippo/ehviewer/client/exception/EhException.java
rename to app/src/main/java/com/hippo/ehviewer/client/exception/EhException.kt
diff --git a/app/src/main/java/com/hippo/ehviewer/client/exception/Image509Exception.java b/app/src/main/java/com/hippo/ehviewer/client/exception/Image509Exception.kt
similarity index 100%
rename from app/src/main/java/com/hippo/ehviewer/client/exception/Image509Exception.java
rename to app/src/main/java/com/hippo/ehviewer/client/exception/Image509Exception.kt
diff --git a/app/src/main/java/com/hippo/ehviewer/client/exception/NoHAtHClientException.java b/app/src/main/java/com/hippo/ehviewer/client/exception/NoHAtHClientException.kt
similarity index 100%
rename from app/src/main/java/com/hippo/ehviewer/client/exception/NoHAtHClientException.java
rename to app/src/main/java/com/hippo/ehviewer/client/exception/NoHAtHClientException.kt
diff --git a/app/src/main/java/com/hippo/ehviewer/client/exception/OffensiveException.java b/app/src/main/java/com/hippo/ehviewer/client/exception/OffensiveException.kt
similarity index 100%
rename from app/src/main/java/com/hippo/ehviewer/client/exception/OffensiveException.java
rename to app/src/main/java/com/hippo/ehviewer/client/exception/OffensiveException.kt
diff --git a/app/src/main/java/com/hippo/ehviewer/client/exception/ParseException.java b/app/src/main/java/com/hippo/ehviewer/client/exception/ParseException.kt
similarity index 100%
rename from app/src/main/java/com/hippo/ehviewer/client/exception/ParseException.java
rename to app/src/main/java/com/hippo/ehviewer/client/exception/ParseException.kt
diff --git a/app/src/main/java/com/hippo/ehviewer/client/exception/PiningException.java b/app/src/main/java/com/hippo/ehviewer/client/exception/PiningException.kt
similarity index 100%
rename from app/src/main/java/com/hippo/ehviewer/client/exception/PiningException.java
rename to app/src/main/java/com/hippo/ehviewer/client/exception/PiningException.kt