[GROOVY-8168] When using Interface: BigDecimal cannot be cast to Double

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.10
• Fix Version/s: 5.0.0-alpha-1
• Assignee: Eric Milles
• Reporter: Artem
• Created: 25/Apr/17 20:15
• Updated: 23/Aug/23 09:11
• Resolved: 30/May/23 17:20

Description

Execute the following code.

interface SomeOperation {
    double calculate(int i)
}
SomeOperation operation = { return 1.0 }
operation.calculate(2)

Results in exception:

 java.lang.ClassCastException: java.math.BigDecimal cannot be cast to java.lang.Double
	at com.sun.proxy.$Proxy21.calculate(Unknown Source)
	at SomeOperation$calculate.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
	at ideaGroovyConsole.run(ideaGroovyConsole.groovy:5)
	at groovy.lang.GroovyShell.runScriptOrMainOrTestOrRunnable(GroovyShell.java:263)
	at groovy.lang.GroovyShell.run(GroovyShell.java:518)
	at groovy.lang.GroovyShell.run(GroovyShell.java:497)
	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:483)
	at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSite.invoke(PogoMetaMethodSite.java:169)
	at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.call(PogoMetaMethodSite.java:71)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133)
	at console.run(console.txt:25)
	at groovy.ui.GroovyMain.processReader(GroovyMain.java:632)
	at groovy.ui.GroovyMain.processFiles(GroovyMain.java:540)
	at groovy.ui.GroovyMain.run(GroovyMain.java:382)
	at groovy.ui.GroovyMain.process(GroovyMain.java:370)
	at groovy.ui.GroovyMain.processArgs(GroovyMain.java:129)
	at groovy.ui.GroovyMain.main(GroovyMain.java:109)
	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:483)
	at org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:109)
	at org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:131)
	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:483)
	at com.intellij.rt.execution.CommandLineWrapper.main(CommandLineWrapper.java:65)

Issue Links

• is related to: GROOVY-10277 STC fails to catch type error on the return type of lambdas
• relates to: GROOVY-11051 Static compiler does not coerce Groovy truth from closures
• relates to: GROOVY-10792 Declared generic parameter on method not transferred to Closure