diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/DeleteEventsRequest.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/DeleteEventsRequest.java
index 96bea315..b275575f 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/DeleteEventsRequest.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/DeleteEventsRequest.java
@@ -88,6 +88,8 @@ private DeleteEventsRequest(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/DeleteEventsResponse.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/DeleteEventsResponse.java
index a0f571ed..e3d51546 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/DeleteEventsResponse.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/DeleteEventsResponse.java
@@ -79,6 +79,8 @@ private DeleteEventsResponse(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorContext.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorContext.java
index e71db6c7..5476e96f 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorContext.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorContext.java
@@ -127,6 +127,8 @@ private ErrorContext(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorEvent.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorEvent.java
index 6648abb3..d63bd01c 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorEvent.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorEvent.java
@@ -139,6 +139,8 @@ private ErrorEvent(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorGroup.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorGroup.java
index 20d77ef6..6d3ba2df 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorGroup.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorGroup.java
@@ -120,6 +120,8 @@ private ErrorGroup(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorGroupStats.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorGroupStats.java
index a6a3f8c6..84eff294 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorGroupStats.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ErrorGroupStats.java
@@ -191,6 +191,8 @@ private ErrorGroupStats(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/GetGroupRequest.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/GetGroupRequest.java
index 631f6745..d9008669 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/GetGroupRequest.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/GetGroupRequest.java
@@ -88,6 +88,8 @@ private GetGroupRequest(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/HttpRequestContext.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/HttpRequestContext.java
index dd2d61c7..f4ed2189 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/HttpRequestContext.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/HttpRequestContext.java
@@ -128,6 +128,8 @@ private HttpRequestContext(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListEventsRequest.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListEventsRequest.java
index 7c1344c8..aa245052 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListEventsRequest.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListEventsRequest.java
@@ -145,6 +145,8 @@ private ListEventsRequest(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListEventsResponse.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListEventsResponse.java
index 8e872c32..7a314278 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListEventsResponse.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListEventsResponse.java
@@ -119,6 +119,8 @@ private ListEventsResponse(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListGroupStatsRequest.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListGroupStatsRequest.java
index 0296a062..94a0cb75 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListGroupStatsRequest.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListGroupStatsRequest.java
@@ -195,6 +195,8 @@ private ListGroupStatsRequest(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListGroupStatsResponse.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListGroupStatsResponse.java
index 329d373b..4aaea2fb 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListGroupStatsResponse.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ListGroupStatsResponse.java
@@ -119,6 +119,8 @@ private ListGroupStatsResponse(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/QueryTimeRange.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/QueryTimeRange.java
index a29d194d..8a5a4f80 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/QueryTimeRange.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/QueryTimeRange.java
@@ -89,6 +89,8 @@ private QueryTimeRange(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportErrorEventRequest.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportErrorEventRequest.java
index e1f37eb8..69308053 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportErrorEventRequest.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportErrorEventRequest.java
@@ -106,6 +106,8 @@ private ReportErrorEventRequest(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportErrorEventResponse.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportErrorEventResponse.java
index a1e8e6fc..64c209e4 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportErrorEventResponse.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportErrorEventResponse.java
@@ -80,6 +80,8 @@ private ReportErrorEventResponse(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportedErrorEvent.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportedErrorEvent.java
index 3aee46a5..b3a95f37 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportedErrorEvent.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ReportedErrorEvent.java
@@ -139,6 +139,8 @@ private ReportedErrorEvent(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ServiceContext.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ServiceContext.java
index 27df6dd4..cdd58d8c 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ServiceContext.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ServiceContext.java
@@ -105,6 +105,8 @@ private ServiceContext(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ServiceContextFilter.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ServiceContextFilter.java
index 9243e41b..41e1d99e 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ServiceContextFilter.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/ServiceContextFilter.java
@@ -107,6 +107,8 @@ private ServiceContextFilter(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/SourceLocation.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/SourceLocation.java
index d1ac7685..e367c91c 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/SourceLocation.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/SourceLocation.java
@@ -104,6 +104,8 @@ private SourceLocation(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/TimedCount.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/TimedCount.java
index 5e9ab774..fed25508 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/TimedCount.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/TimedCount.java
@@ -116,6 +116,8 @@ private TimedCount(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/TrackingIssue.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/TrackingIssue.java
index 13ea4eb2..6d731848 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/TrackingIssue.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/TrackingIssue.java
@@ -88,6 +88,8 @@ private TrackingIssue(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {
diff --git a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/UpdateGroupRequest.java b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/UpdateGroupRequest.java
index 267fb05b..d86fd47b 100644
--- a/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/UpdateGroupRequest.java
+++ b/proto-google-cloud-error-reporting-v1beta1/src/main/java/com/google/devtools/clouderrorreporting/v1beta1/UpdateGroupRequest.java
@@ -96,6 +96,8 @@ private UpdateGroupRequest(
       }
     } catch (com.google.protobuf.InvalidProtocolBufferException e) {
       throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
     } catch (java.io.IOException e) {
       throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
     } finally {