47
48 // Invalid size of -1 should be handled correctly
49 pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=-1",
50 "-version");
51 output = new OutputAnalyzer(pb.start());
52 output.shouldContain("Improperly specified VM option 'CompressedClassSpaceSize=-1'")
53 .shouldHaveExitValue(1);
54
55
56 // Maximum size is 3GB
57 pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=4g",
58 "-version");
59 output = new OutputAnalyzer(pb.start());
60 output.shouldContain("outside the allowed range")
61 .shouldHaveExitValue(1);
62
63
64 // Make sure the minimum size is set correctly and printed
65 pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
66 "-XX:CompressedClassSpaceSize=1m",
67 "-XX:+PrintCompressedOopsMode",
68 "-version");
69 output = new OutputAnalyzer(pb.start());
70 output.shouldContain("Compressed class space size: 1048576")
71 .shouldHaveExitValue(0);
72
73
74 // Make sure the maximum size is set correctly and printed
75 pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
76 "-XX:CompressedClassSpaceSize=3g",
77 "-XX:+PrintCompressedOopsMode",
78 "-version");
79 output = new OutputAnalyzer(pb.start());
80 output.shouldContain("Compressed class space size: 3221225472")
81 .shouldHaveExitValue(0);
82
83
84 pb = ProcessTools.createJavaProcessBuilder("-XX:-UseCompressedOops",
85 "-XX:CompressedClassSpaceSize=1m",
86 "-version");
87 output = new OutputAnalyzer(pb.start());
88 output.shouldContain("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used")
89 .shouldHaveExitValue(0);
90
91
92 pb = ProcessTools.createJavaProcessBuilder("-XX:-UseCompressedClassPointers",
93 "-XX:CompressedClassSpaceSize=1m",
94 "-version");
95 output = new OutputAnalyzer(pb.start());
96 output.shouldContain("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used")
97 .shouldHaveExitValue(0);
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47
48 // Invalid size of -1 should be handled correctly
49 pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=-1",
50 "-version");
51 output = new OutputAnalyzer(pb.start());
52 output.shouldContain("Improperly specified VM option 'CompressedClassSpaceSize=-1'")
53 .shouldHaveExitValue(1);
54
55
56 // Maximum size is 3GB
57 pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=4g",
58 "-version");
59 output = new OutputAnalyzer(pb.start());
60 output.shouldContain("outside the allowed range")
61 .shouldHaveExitValue(1);
62
63
64 // Make sure the minimum size is set correctly and printed
65 pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
66 "-XX:CompressedClassSpaceSize=1m",
67 "-Xlog:gc+metaspace+init=develop",
68 "-version");
69 output = new OutputAnalyzer(pb.start());
70 output.shouldContain("Compressed class space size: 1048576")
71 .shouldHaveExitValue(0);
72
73
74 // Make sure the maximum size is set correctly and printed
75 pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
76 "-XX:CompressedClassSpaceSize=3g",
77 "-Xlog:gc+metaspace+init=develop",
78 "-version");
79 output = new OutputAnalyzer(pb.start());
80 output.shouldContain("Compressed class space size: 3221225472")
81 .shouldHaveExitValue(0);
82
83
84 pb = ProcessTools.createJavaProcessBuilder("-XX:-UseCompressedOops",
85 "-XX:CompressedClassSpaceSize=1m",
86 "-version");
87 output = new OutputAnalyzer(pb.start());
88 output.shouldContain("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used")
89 .shouldHaveExitValue(0);
90
91
92 pb = ProcessTools.createJavaProcessBuilder("-XX:-UseCompressedClassPointers",
93 "-XX:CompressedClassSpaceSize=1m",
94 "-version");
95 output = new OutputAnalyzer(pb.start());
96 output.shouldContain("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used")
97 .shouldHaveExitValue(0);
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