1 #!/bin/sh 2 3 # 4 # Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. 5 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 6 # 7 # This code is free software; you can redistribute it and/or modify it 8 # under the terms of the GNU General Public License version 2 only, as 9 # published by the Free Software Foundation. 10 # 11 # This code is distributed in the hope that it will be useful, but WITHOUT 12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 # version 2 for more details (a copy is included in the LICENSE file that 15 # accompanied this code). 16 # 17 # You should have received a copy of the GNU General Public License version 18 # 2 along with this work; if not, write to the Free Software Foundation, 19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 # 21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 # or visit www.oracle.com if you need additional information or have any 23 # questions. 24 # 25 26 # @test 27 # @bug 4627316 6743526 28 # @summary Test option to limit direct memory allocation 29 # 30 # @build LimitDirectMemory 31 # @ignore JDK-8129343 32 # @run shell LimitDirectMemory.sh 33 34 TMP1=tmp_$$ 35 36 runTest() { 37 echo "Testing: $*" 38 ${TESTJAVA}/bin/java ${TESTVMOPTS} $* 39 if [ $? -eq 0 ] 40 then echo "--- passed as expected" 41 else 42 echo "--- failed" 43 exit 1 44 fi 45 } 46 47 48 launchFail() { 49 echo "Testing: -XX:MaxDirectMemorySize=$* -cp ${TESTCLASSES} \ 50 LimitDirectMemory true DEFAULT DEFAULT+1M" 51 ${TESTJAVA}/bin/java ${TESTVMOPTS} -XX:MaxDirectMemorySize=$* -cp ${TESTCLASSES} \ 52 LimitDirectMemory true DEFAULT DEFAULT+1M > ${TMP1} 2>&1 53 cat ${TMP1} 54 cat ${TMP1} | grep -s "Unrecognized VM option: \'MaxDirectMemorySize=" 55 if [ $? -ne 0 ] 56 then echo "--- failed as expected" 57 else 58 echo "--- failed" 59 exit 1 60 fi 61 } 62 63 # $java LimitDirectMemory throwp fill_direct_memory size_per_buffer 64 65 # Memory is properly limited using multiple buffers. 66 runTest -XX:MaxDirectMemorySize=10 -cp ${TESTCLASSES} LimitDirectMemory true 10 1 67 runTest -XX:MaxDirectMemorySize=1k -cp ${TESTCLASSES} LimitDirectMemory true 1k 100 68 runTest -XX:MaxDirectMemorySize=10m -cp ${TESTCLASSES} LimitDirectMemory true 10m 10m 69 70 # We can increase the amount of available memory. 71 runTest -XX:MaxDirectMemorySize=65M -cp ${TESTCLASSES} \ 72 LimitDirectMemory false 64M 65M 73 74 # Exactly the default amount of memory is available. 75 runTest -cp ${TESTCLASSES} LimitDirectMemory false 10 1 76 runTest -Xmx64m -cp ${TESTCLASSES} LimitDirectMemory false 0 DEFAULT 77 runTest -Xmx64m -cp ${TESTCLASSES} LimitDirectMemory true 0 DEFAULT+1 78 79 # We should be able to eliminate direct memory allocation entirely. 80 runTest -XX:MaxDirectMemorySize=0 -cp ${TESTCLASSES} LimitDirectMemory true 0 1 81 82 # Setting the system property should not work so we should be able to allocate 83 # the default amount. 84 runTest -Dsun.nio.MaxDirectMemorySize=1K -Xmx64m -cp ${TESTCLASSES} \ 85 LimitDirectMemory false DEFAULT-1 DEFAULT/2 86 87 # Various bad values fail to launch the VM. 88 launchFail foo 89 launchFail 10kmt 90 launchFail -1 91 92 # Clean-up 93 rm ${TMP1}