From 69784458af6f4354eb7e235138873f92bb02e52c Mon Sep 17 00:00:00 2001
From: BerndBreier <33351391+BerndBreier@users.noreply.github.com>
Date: Fri, 5 Jan 2018 14:10:53 +0100
Subject: [PATCH] TSK-115 JAASRunner throws ClassCastException if tests fail

---
 .../java/pro/taskana/security/JAASRunner.java | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/lib/taskana-core/src/test/java/pro/taskana/security/JAASRunner.java b/lib/taskana-core/src/test/java/pro/taskana/security/JAASRunner.java
index e20d61733..41afb93a1 100644
--- a/lib/taskana-core/src/test/java/pro/taskana/security/JAASRunner.java
+++ b/lib/taskana-core/src/test/java/pro/taskana/security/JAASRunner.java
@@ -57,17 +57,24 @@ public class JAASRunner extends BlockJUnit4ClassRunner {
                             try {
                                 base.evaluate();
                             } catch (Throwable e) {
-                                if (e instanceof Exception) {
-                                    throw (Exception) e;
-                                } else {
-                                    throw new Exception(e);
-                                }
+                                throw new Exception(e);
                             }
                             return null;
                         }
                     });
                 } catch (PrivilegedActionException e) {
-                    throw (Exception) e.getCause();
+                    Throwable cause = e.getCause();
+                    Throwable nestedCause = null;
+                    if (cause != null) {
+                        nestedCause = cause.getCause();
+                    }
+                    if (nestedCause != null) {
+                        throw nestedCause;
+                    } else if (cause != null) {
+                        throw cause;
+                    } else {
+                        throw e;
+                    }
                 }
             }
         };