diff --git a/platform/platform-api/src/com/intellij/credentialStore/CredentialAttributes.kt b/platform/platform-api/src/com/intellij/credentialStore/CredentialAttributes.kt
index 602f343cf010..814b23be723a 100644
--- a/platform/platform-api/src/com/intellij/credentialStore/CredentialAttributes.kt
+++ b/platform/platform-api/src/com/intellij/credentialStore/CredentialAttributes.kt
@@ -34,26 +34,22 @@ class Credentials(user: String?, val password: OneTimeString? = null) {
 
   fun getPasswordAsString() = password?.toString()
 
-  override fun equals(other: Any?): Boolean {
-    if (other !is Credentials) return false
-    return userName == other.userName && password == other.password
-  }
+  override fun equals(other: Any?) = other is Credentials && userName == other.userName && password == other.password
 
   override fun hashCode() = (userName?.hashCode() ?: 0) * 37 + (password?.hashCode() ?: 0)
 
   override fun toString() = "userName: $userName, password size: ${password?.length ?: 0}"
 }
 
-@Suppress("FunctionName", "DeprecatedCallableAddReplaceWith")
-/**
- * @deprecated Never use it in a new code.
- */
+/** @deprecated Never use it in a new code. */
 @Deprecated("Never use it in a new code.")
+@Suppress("FunctionName", "DeprecatedCallableAddReplaceWith")
 fun CredentialAttributes(requestor: Class<*>, userName: String?) = CredentialAttributes(requestor.name, userName, requestor)
 
 @Contract("null -> false")
 fun Credentials?.isFulfilled() = this != null && userName != null && !password.isNullOrEmpty()
 
+@Contract("null -> false")
 fun Credentials?.hasOnlyUserName() = this != null && userName != null && password.isNullOrEmpty()
 
 fun Credentials?.isEmpty() = this == null || (userName == null && password.isNullOrEmpty())
diff --git a/platform/platform-impl/src/com/intellij/errorreport/error/InternalEAPException.java b/platform/platform-impl/src/com/intellij/errorreport/error/InternalEAPException.java
index 0d1c30189eb7..72533b409688 100644
--- a/platform/platform-impl/src/com/intellij/errorreport/error/InternalEAPException.java
+++ b/platform/platform-impl/src/com/intellij/errorreport/error/InternalEAPException.java
@@ -1,22 +1,8 @@
-/*
- * Copyright 2000-2009 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.errorreport.error;
 
 public class InternalEAPException extends Exception {
-    public InternalEAPException(String message) {
-        super(message);
-    }
-}
+  public InternalEAPException(String message) {
+    super(message);
+  }
+}
\ No newline at end of file
diff --git a/platform/platform-impl/src/com/intellij/errorreport/error/NoSuchEAPUserException.java b/platform/platform-impl/src/com/intellij/errorreport/error/NoSuchEAPUserException.java
index 4dd4838c576d..1ce838790e36 100644
--- a/platform/platform-impl/src/com/intellij/errorreport/error/NoSuchEAPUserException.java
+++ b/platform/platform-impl/src/com/intellij/errorreport/error/NoSuchEAPUserException.java
@@ -1,22 +1,8 @@
-/*
- * Copyright 2000-2009 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.errorreport.error;
 
 public class NoSuchEAPUserException extends Exception {
-    public NoSuchEAPUserException(String message) {
-        super(message);
-    }
-}
+  public NoSuchEAPUserException(String message) {
+    super(message);
+  }
+}
\ No newline at end of file
diff --git a/platform/platform-impl/src/com/intellij/errorreport/error/UpdateAvailableException.java b/platform/platform-impl/src/com/intellij/errorreport/error/UpdateAvailableException.java
index ee9b40efa242..665beaa00b59 100644
--- a/platform/platform-impl/src/com/intellij/errorreport/error/UpdateAvailableException.java
+++ b/platform/platform-impl/src/com/intellij/errorreport/error/UpdateAvailableException.java
@@ -1,22 +1,8 @@
-/*
- * Copyright 2000-2011 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.errorreport.error;
 
 public class UpdateAvailableException extends Exception {
-    public UpdateAvailableException(String update) {
-        super(update);
-    }
-}
+  public UpdateAvailableException(String update) {
+    super(update);
+  }
+}
\ No newline at end of file