Summary
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Remove the terminally deprecated `java.lang.SecurityManager` methods that have been marked for removal since Java SE 9: `checkTopLevelWindow`, `checkSystemClipboardAccess`, `checkAwtEventQueueAccess`, and `checkMemberAccess`.
Problem
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In Java SE 9, these methods were marked for removal as part of JDK-8145468. Also in Java SE 9, the first three methods were re-specified to check `AllPermission` by JDK-8029886, and in Java SE 10 `checkMemberAccess` was changed to check AllPermission by JDK-8186535. These methods no longer have any benefit, and removing them will follow through on the the plan to remove them.
Solution
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Remove the following deprecated java.lang.SecurityManager methods that have been marked with forRemoval=true since JDK 9: `checkTopLevelWindow`, `checkSystemClipboardAccess`, `checkAwtEventQueueAccess`, and `checkMemberAccess`.
Specification
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See the attached specdiff 8193032-specdiff.00.zip.