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This tool copies and instruments a set of Java source files specified on the command line. The output of the instrumentation process is instrumented java source; you will then need to compile the instrumented source using a standard Java compiler.


java com.atlassian.clover.CloverInstr [OPTIONS] PARAMS [FILES...]

Note: in Clover 3.1.x and older a class was named com.cenqua.clover.CloverInstr.


-i, --initstring <file>

Clover initstring. This is the full path to the dbfile that will be used to construct/update to store coverage data.

-s, --srcdir <dir>

Directory containing source files to be instrumented. If omitted individual source files should be specified on the command line.

-d, --destdir <dir>

Directory where Clover should place the instrumented sources. Note that files will be overwritten in the destination directory.


-dc, --distributedCoverage <string>Configuration for recording distributed pre-test coverage.

Valid keys and default values are: ON | OFF |

--dontFullyQualifyJavaLangIf set, then java.lang will not be used in instrumented source.

-e, --encoding <encoding>

Specify the file encoding for source files. If not specified, the platform default encoding is used.

-f, --flushinterval <int>

Tell Clover how often to flush coverage data when using either "interval" or "threaded" flushpolicy. Value in milliseconds.

--instrumentation <policy>

Set the instrumentation strategy. Valid values are "field" and "class". Default is "class".

--instrlevel <string>Set the instrumentation level. Valid values are "statement" and "method". Default is "statement".
--instrlambda <string>

Whether to instrument lambda functions. Valid values are:

  • "none"  - lambda functions will not be visible as "methods", code statements from a lambda body will become a part of an enclosing method
  • "expression" - only lambda functions in an expression-like form (e.g. "(a, b) -> a + b") are instrumented
  • "block" - only lambda functions written as code blocks (e.g. "() -> { return 123; }") are instrumented 
  • "all" - instrument all lambda functions

Since Clover 3.2.2. Default is "all" in 3.2.2-4.0.2 and "none" since 4.0.3.

See also Java 8 code instrumented by Clover fails to compile bug.

-p, --flushpolicy <policy>

Tell Clover which flushpolicy to use when flushing coverage data to disk. Valid values are "directed", "interval" and "threaded". With "interval" or "threaded", you must also specify a flushinterval using -f. The default value is "directed".

-mc --methodContext <name>=<regexp>Defines a single custom method context. May be supplied more than once. (The \ may be needed to prevent shell expansion)
-sc --statementContext <name>=<regexp>Defines a single custom statement context. May be supplied more than once. (The \ may be needed to prevent shell expansion)
-r, --relativeIf specified, the initstring is treated as a relative path, rather than being converted to an absolute path. This is useful for distributed testing environments.

--recordTestResults <true|false>        

If set to "false", test results will not be recorded; instead, results can be added via the <testResults> fileset at report time. For more details please see 'Advanced Usage'.

--source <level>Set the language level for Clover to use when parsing files.

--sourceRoot <string>

Source root path prefix that will be ignored when evaluating the test inclusion patterns. This parameter is optional; it specifies what is trimmed from the beginning of the file path before the tests Include/Exclude Pattern is evaluated (see parameters below). For example, if you specify --sourceRoot /home/user/project/src, then pattern 'test/*.' would match a file in this location: '/home/user/project/src/test/'.
If you leave the --sourceRoot option out, the pattern would need to start with * or specify the full path '/home/user/project/src/test/.'

-v, --verbose

Enable verbose logging.

API Usage

CloverInstr provides a simple API that accepts an array of strings representing the command line arguments and returns an integer result code. The following fragment illustrates use of the API:

import com.atlassian.clover.CloverInstr;


String [] cliArgs =
    { "-jdk14", "-i", "clover.db", "-d", "build/instr", "" }
    int result = CloverInstr.mainImpl(cliArgs);
    if (result != 0)    {
            // problem during instrumentation

java com.atlassian.clover.CloverInstr -i clover.db -s src -d build/instr

Find all java source files in the directory "src", copy and instrument them into the directory "build/instr", which will be constructed if it does not exist. Coverage database "clover.db" is initialized.


java com.atlassian.clover.CloverInstr --source 1.4 -i clover.db -d ../../build/instr \

Copy and instrument the source files "" and "" into the directory "../../build/instr". Use the JDK1.4 grammar (i.e. support the 'assert' keyword).

最終更新日 2016 年 5 月 26 日


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