test/jdk/javax/swing/AbstractButton/5049549/bug5049549.java fails with java.lang.NullPointerException


----------System.err:(15/1129)----------
java.lang.ExceptionInInitializerError
at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method)
at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1160)
at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.ensureClassInitialized(MethodHandleAccessorFactory.java:300)
at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.newMethodAccessor(MethodHandleAccessorFactory.java:71)
at java.base/jdk.internal.reflect.ReflectionFactory.newMethodAccessor(ReflectionFactory.java:159)
at java.base/java.lang.reflect.Method.acquireMethodAccessor(Method.java:724)
at java.base/java.lang.reflect.Method.invoke(Method.java:575)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:125)
at java.base/java.lang.Thread.run(Thread.java:1623)
Caused by: java.lang.NullPointerException: Cannot invoke "java.net.URL.toExternalForm()" because "location" is null
at java.desktop/javax.swing.ImageIcon.<init>(ImageIcon.java:232)
at bug5049549.<clinit>(bug5049549.java:44)
... 9 more
STATUS:Failed.`main' threw exception: java.lang.ExceptionInInitializerError