diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/transport/InternalPushConnection.java b/org.eclipse.jgit/src/org/eclipse/jgit/transport/InternalPushConnection.java
index 732be63dc..f05e0b8c7 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/transport/InternalPushConnection.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/transport/InternalPushConnection.java
@@ -46,6 +46,7 @@
 import java.io.IOException;
 import java.io.PipedInputStream;
 import java.io.PipedOutputStream;
+import java.io.UncheckedIOException;
 
 import org.eclipse.jgit.errors.TransportException;
 import org.eclipse.jgit.internal.JGitText;
@@ -103,10 +104,13 @@ public void run() {
 					// Ignored. Client cannot use this repository.
 				} catch (ServiceNotAuthorizedException e) {
 					// Ignored. Client cannot use this repository.
-				} catch (IOException err) {
-					// Client side of the pipes should report the problem.
-				} catch (RuntimeException err) {
-					// Clients side will notice we went away, and report.
+				} catch (IOException e) {
+					// Since the InternalPushConnection
+					// is used in tests, we want to avoid hiding exceptions
+					// because they can point to programming errors on the server
+					// side. By rethrowing, the default handler will dump it
+					// to stderr.
+					throw new UncheckedIOException(e);
 				} finally {
 					try {
 						out_r.close();