Jonathan Gibbons:

... dot-dotting out of the test directory is not good, and there's a feature in place that tests should be using instead.

occurrences of @library /.. in hotspot/test:

$ grep -r ' @library.* /\.\.' hotspot/test
hotspot/test/gc/g1/TestPLABOutput.java: * @library /testlibrary /../../test/lib
hotspot/test/compiler/types/TestMeetIncompatibleInterfaceArrays.java: * @library /testlibrary /../../test/lib
hotspot/test/compiler/intrinsics/IntrinsicDisabledTest.java: * @library /testlibrary /../../test/lib
hotspot/test/compiler/intrinsics/montgomerymultiply/MontgomeryMultiplyTest.java: * @library /testlibrary /../../test/lib
hotspot/test/compiler/stable/TestStableMemoryBarrier.java: * @library /testlibrary /../../test/lib
hotspot/test/compiler/compilercontrol/commands/PrintTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/commands/CompileOnlyTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/commands/ExcludeTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/commands/LogTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/commandfile/PrintTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/commandfile/CompileOnlyTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/commandfile/ExcludeTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/commandfile/LogTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/TestCompilerDirectivesCompatibilityCommandOff.java: * @library /testlibrary /../../test/lib
hotspot/test/compiler/compilercontrol/directives/PrintTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/directives/CompileOnlyTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/directives/ExcludeTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/directives/LogTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/TestCompilerDirectivesCompatibilityCommandOn.java: * @library /testlibrary /../../test/lib
hotspot/test/compiler/compilercontrol/TestCompilerDirectivesCompatibilityBase.java: * @library /testlibrary /../../test/lib
hotspot/test/compiler/compilercontrol/TestCompilerDirectivesCompatibilityFlag.java: * @library /testlibrary /../../test/lib
hotspot/test/compiler/compilercontrol/mixed/RandomCommandsTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/mixed/RandomValidCommandsTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/jcmd/AddCompileOnlyTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/jcmd/AddExcludeTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/jcmd/AddLogTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/jcmd/AddAndRemoveTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/compilercontrol/jcmd/AddPrintAssemblyTest.java: * @library /testlibrary /../../test/lib /compiler/testlibrary ../share /
hotspot/test/compiler/cpuflags/TestAESIntrinsicsOnUnsupportedConfig.java: * @library /testlibrary /../../test/lib /compiler/whitebox
hotspot/test/compiler/cpuflags/TestAESIntrinsicsOnSupportedConfig.java: * @library /testlibrary /../../test/lib /compiler/whitebox