We often come across a situation where we need to know what kind of java JDK is installed on a particular server. It could be the JDK from Oracle or IBM or an Open JDK. I came across one such situation when connecting to IBM MQ channels over SSL from a client where java was installed. However, the java client program could not connect MQ channels despite all the MQ configurations and settings being correct at the client end and even on the server end. Later, based on the error codes and after some google search, I learned that if the java client is not running on IBM java, we need to set special arguments. After setting those up, it started working. Here I would like to mention a simple java command that will provide us the vendor details describing what vendors java implementation has been installed on that particular server. The command is simple but shows a lot of information that we would like to know in some other situations. Oracle JDK C:\Users\Yohan>java -XshowSettings:properties -version Property settings: awt.toolkit = sun.awt.windows.WToolkit file.encoding = Cp1252 file.encoding.pkg = sun.io file.separator = java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment java.awt.printerjob = sun.awt.windows.WPrinterJob java.class.path = . java.class.version = 52.0 java.endorsed.dirs = C:\Program Files\Java\jre1.8.0_60\lib\endorsed java.ext.dirs = C:\Program Files\Java\jre1.8.0_60\lib\ext C:\Windows\Sun\Java\lib\ext java.home = C:\Program Files\Java\jre1.8.0_60 java.io.tmpdir = C:\Users\Yohan\AppData\Local\Tempjava.library.path = C:\ProgramData\Oracle\Java\javapath C:\Windows\Sun\Java\bin C:\Windows\system32 C:\Windows G:\YOHAN\oracle19\WINDOWS.X64_193000_db_home\bin G:\YOHAN\OracleSoftware_19version\WINDOWS.X64_193000_db_home\bin C:\Program Files\Git\cmd C:\ProgramData\Oracle\Java\javapath C:\Windows\system32 C:\Windows C:\Windows\System32\Wbem C:\Windows\System32\WindowsPowerShell\v1.0C:\Program Files (x86)\MySQL\MySQL Fabric 1.5 ^& MySQL Utilities 1.5C:\Program Files\TortoiseSVN\bin C:\Program Files (x86)\Java\jdk1.8.0_60/bin G:\softwares\apache-maven-3.2.2/bin C:\Program Files\Microsoft VS Code\bin C:\Program Fileodejs\ C:\Users\Yohan\AppData\Roaming\npm C:\Program Files\nodejs . java.runtime.name = Java(TM) SE Runtime Environment java.runtime.version = 1.8.0_60-b27 java.specification.name = Java Platform API Specification java.specification.vendor = Oracle Corporation java.specification.version = 1.8 java.vendor = Oracle Corporation java.vendor.url = http://java.oracle.com/ java.vendor.url.bug = http://bugreport.sun.com/bugreport/ java.version = 1.8.0_60 java.vm.info = mixed mode java.vm.name = Java HotSpot(TM) 64-Bit Server VM java.vm.specification.name = Java Virtual Machine Specification java.vm.specification.vendor = Oracle Corporation java.vm.specification.version = 1.8 java.vm.vendor = Oracle Corporation java.vm.version = 25.60-b23 line.separator = \r \n os.arch = amd64 os.name = Windows 8.1 os.version = 6.3 path.separator = ; sun.arch.data.model = 64 sun.boot.class.path = C:\Program Files\Java\jre1.8.0_60\lib\resources.jar C:\Program Files\Java\jre1.8.0_60\lib\rt.jar C:\Program Files\Java\jre1.8.0_60\lib\sunrsasign.jar C:\Program Files\Java\jre1.8.0_60\lib\jsse.jar C:\Program Files\Java\jre1.8.0_60\lib\jce.jar C:\Program Files\Java\jre1.8.0_60\lib\charsets.jar C:\Program Files\Java\jre1.8.0_60\lib\jfr.jar C:\Program Files\Java\jre1.8.0_60\classes sun.boot.library.path = C:\Program Files\Java\jre1.8.0_60\bin sun.cpu.endian = little sun.cpu.isalist = amd64 sun.desktop = windows sun.io.unicode.encoding = UnicodeLittle sun.java.launcher = SUN_STANDARD sun.jnu.encoding = Cp1252 sun.management.compiler = HotSpot 64-Bit Tiered Compilers sun.os.patch.level = sun.stderr.encoding = cp437 sun.stdout.encoding = cp437 user.country = US user.dir = C:\Users\Yohan user.home = C:\Users\Yohan user.language = en user.name = Yohan user.script = user.timezone = user.variant = java version "1.8.0_60" Java(TM) SE Runtime Environment (build 1.8.0_60-b27) Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode) IBM JDK G:\YOHAN\softwares_1\ibm\ibm_sdk80\bin>java -XshowSettings:properties -version Property settings: awt.toolkit = sun.awt.windows.WToolkit com.ibm.cpu.endian = little com.ibm.jcl.checkClassPath = com.ibm.oti.configuration = scar com.ibm.oti.shared.enabled = false com.ibm.oti.vm.bootstrap.library.path = G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\bin\default G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\bin com.ibm.oti.vm.library.version = 29 com.ibm.system.agent.path = G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\bin com.ibm.util.extralibs.properties = com.ibm.vm.bitmode = 32 com.ibm.zero.version = 2 console.encoding = Cp437 file.encoding = Cp1252 file.encoding.pkg = sun.io file.separator = ibm.signalhandling.rs = false ibm.signalhandling.sigchain = true ibm.signalhandling.sigint = true ibm.system.encoding = Cp1252 java.awt.fonts = java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment java.awt.printerjob = sun.awt.windows.WPrinterJob java.class.path = . java.class.version = 52.0 java.compiler = j9jit29 java.endorsed.dirs = G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\endorsed java.ext.dirs = G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ext java.fullversion = 8.0.6.35 - pwi3280sr6fp35-20210714_01(SR6 FP35) JRE 1.8.0 Windows 8.1 x86-32-Bit 20210622_7763 (JIT enabled, AOT enabled) OpenJ9 - b1f3adb OMR - c2f4a18 IBM - c24a144 java.home = G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre java.io.tmpdir = C:\Users\Yohan\AppData\Local\Tempjava.lang.stringBuffer.growAggressively = false java.library.path = G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\bin\default G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\bin C:\Windows\SysWOW64 C:\Windows G:\YOHAN\oracle19\WINDOWS.X64_193000_db_home\bin G:\YOHAN\OracleSoftware_19version\WINDOWS.X64_193000_db_home\bin C:\Program Files\Git\cmd C:\ProgramData\Oracle\Java\javapath C:\Windows\system32 C:\Windows C:\Windows\System32\Wbem C:\Windows\System32\WindowsPowerShell\v1.0C:\Program Files (x86)\MySQL\MySQL Fabric 1.5 ^& MySQL Utilities 1.5C:\Program Files\TortoiseSVN\bin C:\Program Files (x86)\Java\jdk1.8.0_60/bin G:\softwares\apache-maven-3.2.2/bin C:\Program Files\Microsoft VS Code\bin C:\Program Fileodejs\ C:\Users\Yohan\AppData\Roaming\npm C:\Program Files\nodejs . java.runtime.name = Java(TM) SE Runtime Environment java.runtime.version = 8.0.6.35 - pwi3280sr6fp35-20210714_01(SR6 FP35) java.specification.name = Java Platform API Specification java.specification.vendor = Oracle Corporation java.specification.version = 1.8 java.vendor = IBM Corporation java.vendor.url = http://www.ibm.com java.version = 1.8.0_301 java.vm.info = JRE 1.8.0 Windows 8.1 x86-32-Bit 20210622_7763 (JIT enabled, AOT enabled) OpenJ9 - b1f3adb OMR - c2f4a18 IBM - c24a144 java.vm.name = IBM J9 VM java.vm.specification.name = Java Virtual Machine Specification java.vm.specification.vendor = Oracle Corporation java.vm.specification.version = 1.8 java.vm.vendor = IBM Corporation java.vm.version = 2.9 line.separator = \r os.arch = x86 os.encoding = UTF8 os.name = Windows 8.1 os.version = 6.3 path.separator = ; sun.arch.data.model = 32 sun.boot.class.path = G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\bin\default\jclSC180\vm.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\se-service.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\math.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmorb.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmorbapi.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmcfw.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmpkcs.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmcertpathfw.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmjgssfw.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmjssefw.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmsaslfw.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmjcefw.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmjgssprovider.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmjsseprovider2.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\ibmcertpathprovider.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\xmldsigfw.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\xml.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\charsets.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\resources.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\rt.jar G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\lib\dataaccess.jar sun.boot.library.path = G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\bin\default G:\YOHAN\softwares_1\ibm\ibm_sdk80\jre\bin sun.cpu.endian = little sun.desktop = windows sun.io.unicode.encoding = UnicodeLittle sun.java.launcher = SUN_STANDARD sun.jnu.encoding = Cp1252 user.country = US user.dir = G:\YOHAN\softwares_1\ibm\ibm_sdk80\bin user.home = C:\Users\Yohan user.language = en user.name = Yohan user.timezone = user.variant = java version "1.8.0_301" Java(TM) SE Runtime Environment (build 8.0.6.35 - pwi3280sr6fp35-20210714_01(SR6 FP35)) IBM J9 VM (build 2.9, JRE 1.8.0 Windows 8.1 x86-32-Bit 20210622_7763 (JIT enabled, AOT enabled) OpenJ9 - b1f3adb OMR - c2f4a18 IBM - c24a144) JCL - 20210625_01 based on Oracle jdk8u301-b09 Open JDK G:\YOHAN\softwares_1\openjdk11\bin>java -XshowSettings:properties -version Property settings: awt.toolkit = sun.awt.windows.WToolkit file.encoding = Cp1252 file.separator = java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment java.awt.printerjob = sun.awt.windows.WPrinterJob java.class.path = java.class.version = 55.0 java.home = G:\YOHAN\softwares_1\openjdk11 java.io.tmpdir = C:\Users\Yohan\AppData\Local\Tempjava.library.path = G:\YOHAN\softwares_1\openjdk11\bin C:\Windows\Sun\Java\bin C:\Windows\system32 C:\Windows G:\YOHAN\oracle19\WINDOWS.X64_193000_db_home\bin G:\YOHAN\OracleSoftware_19version\WINDOWS.X64_193000_db_home\bin C:\Program Files\Git\cmd C:\ProgramData\Oracle\Java\javapath C:\Windows\system32 C:\Windows C:\Windows\System32\Wbem C:\Windows\System32\WindowsPowerShell\v1.0C:\Program Files (x86)\MySQL\MySQL Fabric 1.5 ^& MySQL Utilities 1.5C:\Program Files\TortoiseSVN\bin C:\Program Files (x86)\Java\jdk1.8.0_60/bin G:\softwares\apache-maven-3.2.2/bin C:\Program Files\Microsoft VS Code\bin C:\Program Fileodejs\ C:\Users\Yohan\AppData\Roaming\npm C:\Program Files\nodejs . java.runtime.name = OpenJDK Runtime Environment java.runtime.version = 11.0.12+7-LTS java.specification.name = Java Platform API Specification java.specification.vendor = Oracle Corporation java.specification.version = 11 java.vendor = Red Hat, Inc. java.vendor.url = https://access.redhat.com/ java.vendor.url.bug = https://bugzilla.redhat.com/enter_bug.cgi java.vendor.version = 18.9 java.version = 11.0.12 java.version.date = 2021-07-20 java.vm.compressedOopsMode = Zero based java.vm.info = mixed mode java.vm.name = OpenJDK 64-Bit Server VM java.vm.specification.name = Java Virtual Machine Specification java.vm.specification.vendor = Oracle Corporation java.vm.specification.version = 11 java.vm.vendor = Red Hat, Inc. java.vm.version = 11.0.12+7-LTS jdk.debug = release line.separator = \r \n os.arch = amd64 os.name = Windows 8.1 os.version = 6.3 path.separator = ; sun.arch.data.model = 64 sun.boot.library.path = G:\YOHAN\softwares_1\openjdk11\bin sun.cpu.endian = little sun.cpu.isalist = amd64 sun.desktop = windows sun.io.unicode.encoding = UnicodeLittle sun.java.launcher = SUN_STANDARD sun.jnu.encoding = Cp1252 sun.management.compiler = HotSpot 64-Bit Tiered Compilers sun.os.patch.level = sun.stderr.encoding = cp437 sun.stdout.encoding = cp437 user.country = US user.dir = G:\YOHAN\softwares_1\openjdk11\bin user.home = C:\Users\Yohan user.language = en user.name = Yohan user.script = user.timezone = user.variant = openjdk version "11.0.12" 2021-07-20 LTS OpenJDK Runtime Environment 18.9 (build 11.0.12+7-LTS) OpenJDK 64-Bit Server VM 18.9 (build 11.0.12+7-LTS, mixed mode) That’s it! Stay tuned for more stories :)
