{ "_id": "6a1d58901d7bb097a0a477c0", "Package": "J4R", "Type": "Package", "Title": "Create 'Java' Objects and Execute 'Java' Methods", "Version": "1.3.0", "Authors@R": "c(\nperson(\"Mathieu\", \"Fortin\", email = \"mathieu.fortin.re@gmail.com\", role = c(\"aut\", \"cre\"), comment = c(ORCID = \"0000-0002-6436-2727\")),\nperson(c(\"Alex\", \"M\"), \"Chubaty\", email=\"achubaty@for-cast.ca\", role=c(\"ctb\"), comment = c(ORCID = \"0000-0001-7146-8135\")),\nperson(\"His Majesty the King in right of Canada\", role=c(\"cph\")))", "Description": "Makes it possible to create 'Java' objects and to execute\n'Java' methods from the 'R' environment. The 'Java' Virtual\nMachine is handled by a gateway server. Commands are sent to\nthe server through a socket connection from the 'R'\nenvironment. Calls to 'Java' methods allow for vectors so that\na particular method is iteratively run on each element of the\nvector. A score algorithm also makes the calls to 'Java'\nmethods less restrictive. The gateway server relies on the\nrunnable 'Java' library 'j4r.jar'. This library is licensed\nunder the LGPL-3. Its sources are included in the jar file.", "URL": "https://github.com/CWFC-CCFB/J4R", "License": "LGPL-3", "BugReports": "https://github.com/CWFC-CCFB/J4R/issues", "Encoding": "UTF-8", "RoxygenNote": "7.3.1", "SystemRequirements": "Java 8 or later", "Config/pak/sysreqs": "default-jdk", "Repository": "https://predictiveecology.r-universe.dev", "Date/Publication": "2025-09-29 13:36:53 UTC", "RemoteUrl": "https://github.com/CWFC-CCFB/J4R", "RemoteRef": "HEAD", "RemoteSha": "a4aeb8645ceb0e9fc82642898b853a7c19af726a", "NeedsCompilation": "no", "Packaged": { "Date": "2026-06-01 09:55:31 UTC", "User": "root" }, "Author": "Mathieu Fortin [aut, cre] (ORCID:\n),\nAlex M Chubaty [ctb] (ORCID: ),\nHis Majesty the King in right of Canada [cph]", "Maintainer": "Mathieu Fortin ", "MD5sum": "a1997f802c499553e6ada509cd1162a6", "_user": "predictiveecology", "_type": "src", "_file": "J4R_1.3.0.tar.gz", "_fileid": "cc12cb425ceb97923ff45d17faeec8f2226cc621e0e7e48a67648323e49cf6cc", "_filesize": 1685369, 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"0000-0002-6436-2727" }, "_registered": true, "_dependencies": [ { "package": "utils", "version": ">= 3.4", "role": "Imports" }, { "package": "methods", "version": ">= 3.4", "role": "Imports" }, { "package": "testthat", "role": "Suggests" } ], "_owner": "cwfc-ccfb", "_selfowned": false, "_usedby": 0, "_updates": [ { "week": "2025-33", "n": 1 }, { "week": "2025-40", "n": 1 } ], "_tags": [ { "name": "1.2.4", "date": "2025-08-13" }, { "name": "1.3.0", "date": "2025-09-29" } ], "_stars": 0, "_contributors": [ { "user": "donenrique24", "count": 37, "uuid": 50317186 }, { "user": "achubaty", "count": 5, "uuid": 3435577 }, { "user": "jflavoie33", "count": 1, "uuid": 73243064 } ], "_userbio": { "uuid": 10555025, "type": "organization", "name": "Predictive Ecology Group", "description": "Ecological forecasting models and data" }, "_downloads": { "count": 3, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/J4R" }, "_devurl": "https://github.com/cwfc-ccfb/j4r", "_searchresults": 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"cacheEnv", "title": "The cache environment of this package", "topics": [ "cacheEnv" ] }, { "page": "callJavaGC", "title": "Synchronize the Java environment with the R environment", "topics": [ "callJavaGC" ] }, { "page": "callJavaMethod", "title": "Call a Java method", "topics": [ "callJavaMethod" ] }, { "page": "checkIfClasspathContains", "title": "Check if a Library has been loaded", "topics": [ "checkIfClasspathContains" ] }, { "page": "connectToJava", "title": "Connect to Java environment", "topics": [ "connectToJava" ] }, { "page": "createJavaObject", "title": "Create Java objects", "topics": [ "createJavaObject" ] }, { "page": "getAllValuesFromArray", "title": "Returns all the elements of a Java array", "topics": [ "getAllValuesFromArray" ] }, { "page": "getAllValuesFromListObject", "title": "Returns all the elements of a Java instance of List", "topics": [ "getAllValuesFromListObject" ] }, { "page": "getArrayLength", "title": "Return the length of an Array instance", "topics": [ "getArrayLength" ] }, { "page": "getClassLoaderPaths", "title": "Retrieve the paths of the current classloader", "topics": [ "getClassLoaderPaths" ] }, { "page": "getClassLoaderURLs", "title": "Retrieve the URLs of the current classloader", "topics": [ "getClassLoaderURLs" ] }, { "page": "getJavaArchitecture", "title": "Get Java architecture", "topics": [ "getJavaArchitecture" ] }, { "page": "getJavaField", "title": "Get the value of a public field", "topics": [ "getJavaField" ] }, { "page": "getJavaVersion", "title": "Get the current Java version", "topics": [ "getJavaVersion" ] }, { "page": "getListOfJavaReferences", "title": "Provide a list of the Java references", "topics": [ "getListOfJavaReferences" ] }, { "page": "getMainInstance", "title": "Return the main instance in the case of a public server", "topics": [ "getMainInstance" ] }, { "page": "getMainLoggerInstance", "title": "Provide the Reference to the Main Logger", "topics": [ "getMainLoggerInstance" ] }, { "page": 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