Compound class names are not supported error in WebDriver

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I have a method to count the number of elements in divs and to return their number.

public int getNumberOfOpenBets() {
openBetsSlip
= driver.findElement(By.id("form_open_bets"));
openBets
= openBetsSlip.findElements(By.className(" cashout_noCash"));
return openBets.size();
}

That’s the page source

<form id="form_open_bets" method="post" name="form_open_bets">
<input type="hidden" value="" name="action">
<input type="hidden" value="" name="bet_id">
<input type="hidden" value="" name="cashout_price">
<input id="target_page" type="hidden" value="" name="target_page">
<div id="By.id" class="slipWrapper ">
<div id="openBets_header"></div>
<div id="cashout_1626" class=" cashout_noCash">
<div id="cashout_1625" class=" cashout_noCash">
<div id="cashout_1615" class=" cashout_noCash">
<div id="cashout_1614" class=" cashout_noCash">
<div id="cashout_1613" class=" cashout_noCash">
</div>

WebDriver is throwing the following error: Compound class names are not supported. Consider searching for one class name and filtering the results or use CSS selectors.

org.openqa.selenium.InvalidSelectorException: Compound class names are not supported. Consider searching for one class name and filtering the results or use CSS selectors.
For documentation on this error, please visit: http://seleniumhq.org/exceptions/invalid_selector_exception.html
Build info: version: '2.31.0', revision: '1bd294d185a80fa4206dfeab80ba773c04ac33c0', time: '2013-02-27 13:51:26'
System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.7.0_17'
Driver info: driver.version: unknown
at org
.openqa.selenium.By.className(By.java:131)
at elements
.betslip.Betslip.getNumberOfOpenBets(Betslip.java:136)
at testSomething
(SomethingTest.java:117)
at sun
.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun
.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun
.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java
.lang.reflect.Method.invoke(Unknown Source)
at org
.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org
.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org
.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org
.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org
.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org
.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org
.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org
.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org
.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org
.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org
.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org
.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org
.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org
.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org
.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org
.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org
.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org
.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org
.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

EDIT:

As it turned out WerbDriver doesn’t support spaces in the class names, omg. Could you guys please help me to use CSS selector in this situaltion in order to find the elements?

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0
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This is exactly as expected. If your class name includes a space, WebDriver will see it as a “compound selector”. You can either remove the space in your By.className() locator, which should still find the elements you’re looking for; or you can move to finding by CSS selectors, using something like By.cssSelector(".cashout_noCash"), which offer far more flexibility for similar functionality. This is exactly what the exception message says.

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