[英]How to measure code coverage with the JaCoCo agent for a Java Web Start (JNLP) application?
有没有办法将JaCoCo代理附加到javaws Web Start(JNLP)应用程序?
我通常通过调用javaws app.jnlp
运行该应用程序。 这是一个示例jnlp文件:
<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="1.0+" codebase="http://localhost:8000/" href="test.jnlp">
<information>
<title>Testing</title>
<vendor>vendor</vendor>
<homepage href="http://localhost:8080/" />
<description>Testing Testing</description>
<security>
<all-permissions/>
</security>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.6+" />
<jar href="test.jar" />
</resources>
<application-desc main-class="Main" />
</jnlp>
该应用程序本身仅将“ Hello world”打印到控制台。
我试过了:
JAVAWS_VM_ARGS="-javaagent:/path/to/jacocoagent.jar"
环境可变 <j2se version="1.6+" java-vm-args="-javaagent:/path/to/jacocoagent.jar" />
这些都不会产生覆盖代码的jacoco.exec文件。
运行javaws -J-javaagent:/path/to/jacocoagent.jar app.jnlp
或设置JAVA_TOOL_OPTIONS="-javaagent:/path/to/jacocoagent.jar"
似乎尝试加载代理,但导致:
java.security.AccessControlException: access denied ("java.util.PropertyPermission" "user.dir" "read")
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:472)
at java.security.AccessController.checkPermission(AccessController.java:884)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
at java.lang.SecurityManager.checkPropertyAccess(SecurityManager.java:1294)
at java.lang.System.getProperty(System.java:717)
at java.io.UnixFileSystem.resolve(UnixFileSystem.java:133)
at java.io.File.getAbsolutePath(File.java:556)
at java.io.File.getAbsoluteFile(File.java:572)
at org.jacoco.agent.rt.internal_8db3ebe.output.FileOutput.startup(FileOutput.java:42)
at org.jacoco.agent.rt.internal_8db3ebe.Agent.startup(Agent.java:122)
at org.jacoco.agent.rt.internal_8db3ebe.Agent.getInstance(Agent.java:50)
at org.jacoco.agent.rt.internal_8db3ebe.PreMain.premain(PreMain.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:386)
at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:401)
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:386)
at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:401)
Caused by: java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "shutdownHooks")
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:472)
at java.security.AccessController.checkPermission(AccessController.java:884)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
at java.lang.Runtime.addShutdownHook(Runtime.java:209)
at org.jacoco.agent.rt.internal_8db3ebe.Agent.getInstance(Agent.java:51)
at org.jacoco.agent.rt.internal_8db3ebe.PreMain.premain(PreMain.java:45)
... 6 more
有没有办法将JaCoCo代理附加到这样的JNLP JVM?
我想通了:添加
grant {
permission java.security.AllPermission;
};
到/etc/icedtea-web/javaws.policy
路径不同: C:\\Program Files\\Java\\<java-version>\\lib\\security\\javaws.policy
)在运行其中一个时都摆脱了安全异常
javaws -J-javaagent:/path/to/jacocoagent.jar app.jnlp
(仅在Linux上有效) JAVA_TOOL_OPTIONS="-javaagent:/path/to/jacocoagent.jar" javaws app.jnlp
并创建了jacoco.exec文件。
另请注意,显然,您的应用程序需要签名才能起作用: https : //stackoverflow.com/a/16960559/1396068
根据Java Web Start文档 , java-vm-args
不支持Java代理,因为仅支持有限数量的被认为是安全的VM args。
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