Fix bad .git resourceFilter

Signed-off-by: Fred Bricon <fbricon@gmail.com>

Author: fbricon

README.md

@@ -183,7 +183,7 @@ The following settings are supported:
 * `java.project.importOnFirstTimeStartup`: Specifies whether to import the Java projects, when opening the folder in Hybrid mode for the first time. Supported values are `disabled` (never imports), `interactive` (asks to import or not), `automatic` (always imports). Default to `automatic`.
 * `java.project.importHint`: Enable/disable the server-mode switch information, when Java projects import is skipped on startup. Defaults to `true`.
 * `java.import.gradle.java.home`: Specifies the location to the JVM used to run the Gradle daemon.
-* `java.project.resourceFilters`: Excludes files and folders from being refreshed by the Java Language Server, which can improve the overall performance. For example, ["node_modules",".git"] will exclude all files and folders named 'node_modules' or '.git'. Defaults to ["node_modules",".git"].
+* `java.project.resourceFilters`: Excludes files and folders from being refreshed by the Java Language Server, which can improve the overall performance. For example, ["node_modules","\.git"] will exclude all files and folders named 'node_modules' or '.git'. Pattern expressions must be compatible with `java.util.regex.Pattern`. Defaults to ["node_modules","\.git"].
 * `java.templates.fileHeader`: Specifies the file header comment for new Java file. Supports configuring multi-line comments with an array of strings, and using ${variable} to reference the [predefined variables](https://github.com/redhat-developer/vscode-java/wiki/Predefined-Variables-for-Java-Template-Snippets).
 * `java.templates.typeComment`: Specifies the type comment for new Java type. Supports configuring multi-line comments with an array of strings, and using ${variable} to reference the [predefined variables](https://github.com/redhat-developer/vscode-java/wiki/Predefined-Variables-for-Java-Template-Snippets).
 * `java.references.includeAccessors`: Include getter, setter and builder/constructor when finding references. Default to true.

package.json

@@ -835,9 +835,9 @@
           "type": "array",
           "default": [
             "node_modules",
-            ".git"
+            "\\.git"
           ],
-          "description": "Excludes files and folders from being refreshed by the Java Language Server, which can improve the overall performance. For example, [\"node_modules\",\".git\"] will exclude all files and folders named 'node_modules' or '.git'. Defaults to [\"node_modules\",\".git\"].",
+          "description": "Excludes files and folders from being refreshed by the Java Language Server, which can improve the overall performance. For example, [\"node_modules\",\"\\.git\"] will exclude all files and folders named 'node_modules' or '.git'. Pattern expressions must be compatible with `java.util.regex.Pattern`. Defaults to [\"node_modules\",\"\\.git\"].",
           "scope": "window"
         },
         "java.templates.fileHeader": {