diff --git a/org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/jarexport/FatJarExportTests.java b/org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/jarexport/FatJarExportTests.java
index 288187b8e82..c3685136ead 100644
--- a/org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/jarexport/FatJarExportTests.java
+++ b/org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/jarexport/FatJarExportTests.java
@@ -112,7 +112,7 @@ public class FatJarExportTests {
 	@Rule
 	public TestName tn=new TestName();
 
-	private static final int JAVA_RUN_TIMEOUT= 50; // 10th of a second
+	private static final int JAVA_RUN_TIMEOUT= 300; // 10th of a second
 
 	@BeforeClass
 	public static void setUpTest() {