Migrate Java tests to Truth.
RELNOTES: None.

PiperOrigin-RevId: 157446717
diff --git a/src/test/java/com/google/devtools/build/skyframe/ErrorInfoTest.java b/src/test/java/com/google/devtools/build/skyframe/ErrorInfoTest.java
index e88d73e..6dbeede 100644
--- a/src/test/java/com/google/devtools/build/skyframe/ErrorInfoTest.java
+++ b/src/test/java/com/google/devtools/build/skyframe/ErrorInfoTest.java
@@ -174,7 +174,8 @@
           false);
     } catch (IllegalStateException e) {
       // Brittle, but confirms we failed for the right reason.
-      assertThat(e.getMessage())
+      assertThat(e)
+          .hasMessageThat()
           .startsWith("exception and rootCauseOfException must both be null or non-null");
     }
   }