1 files changed, 29 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/actions/CommandLineExpansionException.java b/src/main/java/com/google/devtools/build/lib/actions/CommandLineExpansionException.java
new file mode 100644
index 0000000000..91eebee4da
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/actions/CommandLineExpansionException.java
@@ -0,0 +1,29 @@
+// Copyright 2017 The Bazel Authors. All rights reserved.
+//
+// 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.
+
+package com.google.devtools.build.lib.actions;
+
+/**
+ * Thrown by command line classes during expansion.
+ *
+ * <p>This exception should be thrown deterministically, i.e. the command line should fail to expand
+ * in exactly the same way every time at attempt is made. An example would be an illegal format
+ * string, or a failure in Skylark evaluation of a compact command line.
+ */
+public final class CommandLineExpansionException extends Exception {
+  /** @param userVisibleErrorMessage An error string that will be displayed to the user. */
+  public CommandLineExpansionException(String userVisibleErrorMessage) {
+    super(userVisibleErrorMessage);
+  }
+}